US Pat. No. 9,615,927

ORTHOPAEDIC SURGICAL INSTRUMENT SYSTEM AND METHOD FOR PROTECTING A FEMORAL STEM TAPER

DEPUY IRELAND UNLIMITED C...

1. An orthopaedic hip prosthesis system comprising:
a femoral head component configured to articulate with a natural or prosthetic acetabulum of a patient, the femoral head component
having a tapered bore formed therein,

a femoral stem component having a tapered trunnion configured to be received in the tapered bore of the femoral head component,
and

a shell positioned over the tapered trunnion of the femoral stem component, the shell including (i) a frame extending over
the tapered trunnion, and (ii) a protective coating applied to the frame and the tapered trunnion,

wherein the frame is formed from a first material and the protective coating is formed from a second material different from
the first material,

wherein the first material is a plastic, and the second material is a biocompatible wax.

US Pat. No. 9,649,119

METHOD FOR PERFORMING AN ORTHOPAEDIC SURGICAL PROCEDURE

DEPUY IRELAND UNLIMITED C...

1. A method for performing an orthopaedic surgical procedure on a knee joint of a patient, the method comprising:
positioning a tibial paddle of a sensor module on a proximal surface of a patient's tibia, the tibial paddle including a sensor
array and having an upper tibial paddle housing with a flat surface,

distracting the patient's knee joint, wherein distracting the patient's knee joint comprises positioning a joint distractor
in the patient's knee joint such that a medial tibial paddle of the joint distractor and a lateral tibial paddle of the joint
distractor each contacts the upper tibial paddle housing of the sensor module,

monitoring a display of the sensor module, the display providing a visual indication of the medial-lateral joint force balance
of the patient's knee joint,

performing a balancing procedure to adjust the medial-lateral balance as indicated by the display of the sensor module, and
resecting a distal end of the patient's femur after performing the balancing procedure.

US Pat. No. 9,820,857

SURGICAL INSTRUMENT AND METHOD OF USE

DEPUY IRELAND UNLIMITED C...

1. A system for use in an orthopaedic arthroplasty procedure, the system comprising:
a first tibial implant component having a first size and including a first bearing surface and a first posterior-stabilizing
spine, the first bearing surface including a first concave contour,

a second tibial implant component having a second size different from the first size and including a second bearing surface
and a second posterior-stabilizing spine, the second bearing surface including a second concave contour, and

a surgical instrument comprising:
(i) a shaft having a first end and a second end;
(ii) an impactor head disposed at the second end of the shaft and including:
first and second spaced ends;
two spaced legs disposed at the second end of the impactor head, each leg having a first surface; and
a cavity disposed between the first surfaces of the spaced legs, wherein the cavity is adapted to accommodate the first and
second posterior-stabilizing spines of the first tibial implant component and the second tibial implant component;

wherein each leg also includes a second surface and an arced third surface that connects the first surface and the second
surface,

wherein each of the second surfaces includes a first section with a first convex contour configured to engage and conform
to the first concave contour of the first bearing surface of the first tibial implant component and a second section with
a second convex contour configured to engage and conform to the second concave contour of the second bearing surface of the
second tibial implant component.

US Pat. No. 9,538,953

DEVICE AND METHOD FOR DETERMINING FORCE OF A KNEE JOINT

DEPUY IRELAND UNLIMITED C...

1. A joint distractor for distracting a patient's knee joint, the joint distractor comprising: a cradle extending in a longitudinal
direction, the cradle being configured to receive and secure a sensor module;
a first distractor component including a first body movably coupled to a first side of the cradle and a first tibial paddle
and a first femoral paddle that extend from the first body the longitudinal direction, the first tibial paddle being configured
to contact a tibial paddle of the sensor module when the sensor module is positioned in the cradle and the first femoral paddle
being configured to contact a distal end of a femur of a patient when the joint distractor is positioned in the patient's
knee joint between the patient's tibia and femur; the first femoral paddle being movable with respect to the first tibial
paddle to define a first displacement between the patient's tibia and femur; and

a second distractor component including a second body movably coupled to a second side of the cradle and a second tibial paddle
and a second femoral paddle that extend from the second body the longitudinal direction, the second tibial paddle being configured
to contact the tibial paddle of the sensor module when the sensor module is positioned in the cradle and the second femoral
paddle being configured to contact the distal end of the femur of the patient when the joint distractor is positioned in the
patient's knee joint between the patient's tibia and femur, the second femoral paddle being movable with respect to the second
tibial paddle to define a second displacement between the patient's tibia and femur;

wherein the first distractor component and the second distractor component are movable with respect to the cradle in the longitudinal
direction to permit selectively extending one of the distractor components beyond the other distractor component in the longitudinal
direction.

US Pat. No. 9,814,584

FIXED-BEARING KNEE PROSTHESIS HAVING A LOCKING MECHANISM WITH A CONCAVE-TO-CONVEX MATING INTERFACE

DEPUY IRELAND UNLIMITED C...

1. A fixed-bearing knee prosthesis, comprising:
a femoral component having a medial condyle surface and a lateral condyle surface,
a bearing having (i) a medial bearing surface configured to articulate with the medial condyle surface of the femoral component,
and (ii) a lateral bearing surface configured to articulate with the lateral condyle surface of the femoral component, and

a tibial tray secured to the bearing, the tibial tray having a platform with a fixation member extending inferiorly from an
inferior surface thereof, the platform having a posterior buttress extending anteriorly away from a posterior section of a
perimeter of the platform and extending superiorly from a superior surface of the platform, wherein the posterior buttress
is generally Y-shaped and comprises:

a first arm extending along a posterior edge of the platform,
a second arm extending along the posterior edge of the platform in a direction away from the first arm,
a third arm extending anteriorly away from the first arm and the second arm,
a lateral-most edge that is defined in the first arm and the third arm such that the lateral-most edge of the posterior buttress
extends anteriorly away from the posterior edge of the platform along the first arm and the third arm, the lateral-most edge
having a convex surface that faces outward from the first arm and the third arm and transitions to a concave surface that
faces outward from the first arm and the third arm, the convex surface of the lateral-most edge being positioned superior
to the concave surface of the lateral-most edge, and

a medial-most edge that is defined in the second arm and the third arm such that the medial-most edge of the posterior buttress
extends anteriorly away from the posterior edge of the platform along the second arm and the third arm, the medial-most edge
having a convex surface that faces outward from the second arm and the third arm and transitions to a concave surface that
faces outward from the second arm and the third arm, the convex surface of the medial-most edge being positioned superior
to the concave surface of the medial-most edge.

US Pat. No. 9,579,113

SURGICAL INSTRUMENTS AND METHOD OF SURGICALLY PREPARING A PATIENT'S TIBIA

DEPUY IRELAND UNLIMITED C...

1. A method of surgically preparing a proximal end of a tibia, the method comprising:
attaching a stem trial to an end of a surgical reamer to form an intramedullary orthopaedic surgical instrument,
inserting the intramedullary orthopaedic surgical instrument into a medullary canal of the tibia,
securing a housing of an attachment device to the intramedullary orthopaedic surgical instrument,
sliding a mounting frame along a rail of the attachment device toward the housing,
attaching a cutting block to the mounting frame, the cutting block having a cutting guide defined therein,
resecting the proximal end of the tibia using the cutting guide to form a surgically-prepared surface,
removing the intramedullary orthopaedic surgical instrument from the medullary canal,
attaching the stem trial to a modular stem, and
securing the modular stem and the stem trial to the tibial base trial,
wherein inserting the intramedullary orthopaedic surgical instrument into the medullary canal includes reaming the proximal
end of the tibia with the surgical reamer, and

wherein positioning the tibial base trial on the surgically-prepared surface includes inserting the modular stem and the stem
trial into the medullary canal.

US Pat. No. 9,700,330

METHOD FOR SURGICALLY IMPLANTING A PROSTHETIC PATELLA COMPONENT

DEPUY IRELAND UNLIMITED C...

1. A method of performing an orthopaedic surgical procedure on a patella of a patient, comprising:
resecting the patella of the patient to produce a generally planar resected patellar surface,
positioning a patella drill guide and trial instrument on the resected patellar surface, the patella drill guide and trial
instrument having (i) a curved posterior trial bearing surface configured to articulate with a condylar surface of a prosthetic
femoral component, (ii) a number of drill guide holes formed in the posterior trial bearing surface and extending through
the patella drill guide and trial instrument, and (iii) an anterior surface opposite the posterior trial bearing surface,
the anterior surface having a number of spikes extending therefrom with one of the number of spikes being longer than the
other spikes,

trialing the patellofemoral joint with the posterior trial bearing surface engaging the condylar surface of the prosthetic
femoral component and the patella drill guide and trial instrument positioned on the resected patellar surface, and

advancing a drill through the number of guide holes formed in the posterior trial bearing surface of the patella drill guide
and trial instrument and into the resected patellar surface so as to drill a number of anchor holes in the patella of the
patient subsequent to trialing the patellofemoral joint,

wherein positioning the patella drill guide and trial instrument on the resected patella surface comprises: (i) inserting
a tip of the longer spike of the number of spikes into the resected patella surface, (ii) rotating the patella drill guide
and trial instrument relative to the resected patella surface about the longer spike of the number of spikes into a desired
alignment position, and (iii) advancing the patella drill guide and trial instrument into the resected patella surface such
that each of the number of spikes engages the resected patella surface.

US Pat. No. 9,480,482

METHOD OF ASSEMBLING AND POSITIONING A FEMORAL ORTHOPAEDIC SURGICAL INSTRUMENT

DEPUY IRELAND UNLIMITED C...

1. A method for performing an orthopaedic surgical procedure on a femur, the method comprising:
positioning a distal end of an intramedullary adaptor in a slot defined in a base cutting block,
securing the distal end of the intramedullary adaptor to the base cutting block,
attaching a proximal end of the intramedullary adaptor to an intramedullary orthopaedic surgical instrument after securing
the intramedullary adaptor to the base cutting block, and

positioning the base cutting block on a distal end of the femur,
wherein securing the distal end of the intramedullary adaptor to the base cutting block includes advancing a locking tab of
the base cutting block into the slot defined in the base cutting block and into a channel defined in distal end of the intramedullary
adaptor.

US Pat. No. 9,554,813

PATELLA DRILL GUIDE AND TRIAL SURGICAL INSTRUMENT

DEPUY IRELAND UNLIMITED C...

1. A patella drill guide and trial instrument, comprising:
a single monolithic polymeric body, comprising:
(i) a posterior trial bearing surface configured to articulate with a condylar surface of a prosthetic femoral component,
the posterior trial bearing surface comprising a curved peak surface that defines the posterior-most surface of the patella
drill guide and trial instrument,

(ii) an anterior surface having a plurality of spikes extending outwardly therefrom that are configured to engage a surgically-prepared
posterior surface of a patient's patella to prevent the patella drill guide and trial instrument from rotating with respect
to the patient's patella when the anterior surface is engaged with the surgically-prepared posterior surface of the patient's
patella, and

(iii) a number of drill guide holes extending through the patella drill guide and trial instrument from the posterior trial
bearing surface to the anterior surface, and

a metallic sleeve inserted into each of the number of drill guide holes,
wherein the plurality of spikes includes a center spike and a number of peripheral spikes, the center spike is longer than
the number of peripheral spikes,

wherein the patella drill guide and trial instrument is configured to be positioned in a first position where only the center
spike engages the surgically-prepared posterior surface of a patient's patella to allow rotational positioning of the patella
drill guide and trial instrument relative to the patient's patella about a central axis defined by the center spike, and

wherein the patella drill guide and trial instrument is configured to be positioned in a second position where both the center
spike and the number of peripheral spikes engage the surgically-prepared posterior surface of a patient's patella to prevent
the patella drill guide and trial instrument from rotating with respect to the patient's patella.

US Pat. No. 9,498,342

KNEE PROSTHESIS HAVING COMMONLY-SIZED PATELLA COMPONENTS WITH VARYING THICKNESSES AND PEAK SURFACE DIAMETERS

DEPUY IRELAND UNLIMITED C...

1. An implantable orthopaedic knee prosthesis assembly, comprising:
a first dome patella component having (i) a posterior bearing surface configured to articulate with the femoral condyles of
an implantable femoral component, and (ii) an anterior surface having a number of pegs extending outwardly therefrom, wherein,
when viewed in a coronal cross sectional view, (a) the posterior bearing surface of the first dome patella component has a
curved peak surface that includes a posterior-most point of the first dome patella component, and (b) a first imaginary line
segment extends orthogonally from the anterior surface of the first dome patella component to the posterior-most point of
the first dome patella component, and

a second dome patella component having (i) a posterior bearing surface configured to articulate with the femoral condyles
of an implantable femoral component, (ii) an anterior surface having a number of pegs extending outwardly therefrom, and (iii)
a medial/lateral width that is the same as the medial/lateral width of the first dome patella component, wherein, when viewed
in a coronal cross sectional view, (a) the posterior bearing surface of the second dome patella component has a curved peak
surface that includes a posterior-most point of the second dome patella component, and (b) a second imaginary line segment
extends orthogonally from the anterior surface of the second dome patella component to the posterior-most point of the second
dome patella component, the second imaginary line segment being longer than the first imaginary line segment,

wherein the curved peak surface of both the first and second dome patella components comprises a section of a sphere that
is less than a hemisphere, and

the posterior bearing surface of both the first and second dome patella components further has a conically-shaped surface
that extends anteriorly away from the curved peak surface and transitions into a rounded edge surface that extends anteriorly
away from the conically-shaped surface in the direction toward the anterior surface.

US Pat. No. 9,855,065

ORTHOPAEDIC SURGICAL INSTRUMENT ASSEMBLY FOR IMPLANTING A PROSTHETIC PATELLA COMPONENT

DEPUY IRELAND UNLIMITED C...

1. An orthopaedic surgical instrument assembly, comprising:
a clamp comprising a first lever pivotally coupled to a second lever, wherein (i) a proximal end of the first lever includes
an upper handle and a distal end of the first lever includes a retaining socket secured thereto, and (ii) a proximal end of
the second lever includes a lower handle and a distal end of the second lever includes a connector,

a patella drill guide and trial instrument having a connector configured to be selectively secured to the connector of the
clamp, the patella drill guide and trial instrument comprising a single monolithic body that includes (i) a posterior trial
bearing surface configured to articulate with a condylar surface of a prosthetic femoral component, (ii) an anterior surface
opposite the posterior trial bearing surface that has a plurality of spikes extending outwardly therefrom that are configured
to engage a surgically-prepared posterior surface of a patient's patella to prevent any movement of the patella drill guide
and trial instrument with respect to the patient's patella when the anterior surface is engaged with the surgically-prepared
posterior surface of the patient's patella, and (iii) a number of drill guide holes extending from the posterior trial bearing
surface to the anterior surface, and

a compression socket having a connector configured to be selectively secured to the connector of the clamp, the compression
socket having a compressible cushion,

wherein the plurality of spikes includes a center spike and a number of peripheral spikes, the center spike is longer than
the number of peripheral spikes,

wherein the patella drill guide and trial instrument is configured to be positioned in a first position in which only the
center spike engages the surgically-prepared posterior surface of a patient's patella to allow rotational positioning of the
patella drill guide and trial instrument relative to the patient's patella about a central axis defined by the center spike,
and

wherein the patella drill guide and trial instrument is configured to be positioned in a second position in which both the
center spike and the number of peripheral spikes engage the surgically-prepared posterior surface of a patient's patella to
prevent the patella drill guide and trial instrument from rotating with respect to the patient's patella.

US Pat. No. 9,730,706

METHOD OF USING A FEMORAL SURGICAL INSTRUMENT

DEPUY IRELAND UNLIMITED C...

1. A method for surgically preparing a distal end of a femur to receive an orthopedic prosthesis, the method comprising:
attaching a depth stop to a handle at a first position of a plurality of positions along an elongated body of the handle,
securing a broach to an end of the handle, the broach having a tapered outer surface with a plurality of cutting teeth defined
in the outer surface,

advancing the broach along an anatomical axis of the femur through a distal opening of a medullary canal of the femur, and
engaging a proximal surface of the depth stop with a distal surface of the femur, wherein an oblique angle is defined between
the proximal surface and the anatomical axis of the femur.

US Pat. No. 9,724,202

FEMORAL COMPONENT OF A KNEE PROSTHESIS HAVING AN ANGLED CEMENT POCKET

DEPUY IRELAND UNLIMITED C...

1. An implantable orthopaedic knee prosthesis, comprising:
a femoral component configured to be coupled to a surgically-prepared distal femur, the femoral component having (i) an articular
side comprising a posterior femoral condyle surface, and (ii) a fixation side that is opposite the articular side, the fixation
side comprising a fixation surface,

wherein, when viewed in the sagittal plane, the fixation surface comprises (i) a peripheral rim, (ii) an angled bottom wall
spaced apart posteriorly from the peripheral rim, and (iii) a superior wall extending posteriorly from the peripheral rim
to the angled bottom wall,

wherein the superior wall extends between a pair of sidewalls that extend inferiorly and superiorly on a medial side and a
lateral side of the fixation surface, and the superior wall, the angled bottom wall, and the pair of sidewalls collectively
define a cement pocket, and

wherein, when viewed in the sagittal plane, (i) an imaginary plane defined by the peripheral rim forms an acute angle with
an imaginary plane defined by the angled bottom wall such that the cement pocket is deeper at its inferior end than at its
superior end, and (ii) the cement pocket has a depth at its superior end that is greater than zero millimeters.

US Pat. No. 9,468,531

ORTHOPAEDIC TIBIAL PROSTHESIS HAVING TIBIAL AUGMENTS

DEPUY IRELAND UNLIMITED C...

1. A medial tibial augment configured to be secured to an implantable prosthetic tibial tray, the medial tibial augment comprising:
a top proximal surface that is sized to abut only a medial section of a bottom surface of the tibial tray when the medial
tibial augment is secured to the tibial tray;

a bottom distal surface opposite the top proximal surface; and
a medial exterior side surface that extends from the top proximal surface to the bottom distal surface, the exterior side
surface including a side surface section extending from an anterior-most point of the exterior side surface to a posterior-most
point of the exterior surface, wherein the side surface section defines (i) a first interior angle relative to the top proximal
surface at the anterior-most point of the exterior side surface and (ii) a second interior angle relative to the top proximal
surface at the posterior-most point of the exterior side surface that is different from the first interior angle.

US Pat. No. 9,750,619

SURGICAL INSTRUMENT

DEPUY IRELAND UNLIMITED C...

1. An adjustable spacer instrument for use in a knee arthroplasty procedure, comprising:
a first member having a substantially planar upper surface;
a second member having a substantially planar lower surface; and
an angular adjustment mechanism interposed between the first member and the second member, the angular adjustment mechanism
being operable to adjust the degree of tilt between the upper surface and the lower surface and including a releasable lock
which can maintain the degree of tilt,

wherein the adjustment mechanism comprises a plurality of proud features and a plurality of regions of differing height positioned
to engage the proud features in a plurality of different configurations each corresponding to a different degree of tilt between
the upper surface and the lower surface.

US Pat. No. 9,603,723

FEMORAL ORTHOPAEDIC SURGICAL INSTRUMENT INCLUDING A MEASUREMENT DEVICE AND METHOD OF USE OF SAME

DEPUY IRELAND UNLIMITED C...

1. A method for performing an orthopaedic surgical procedure on a femur including a medial epicondyle, a lateral epicondyle,
and an epicondylar axis extending through the medial epicondyle and the lateral epicondyle, the method comprising:
assembling an orthopaedic surgical instrument assembly by securing an intramedullary orthopaedic surgical instrument to a
base plate such that a proximal end of the intramedullary orthopaedic surgical instrument is positioned proximal to the base
plate, and securing a measurement gauge to the base plate such that a proximal end of the measurement gauge is positioned
proximal to the base plate,

inserting the proximal end of the intramedullary orthopaedic surgical instrument into a distal opening of a medullary canal
of the femur,

advancing the intramedullary orthopaedic surgical instrument proximally along the medullary canal to move the base plate toward
the femur, and

aligning a marking of the gauge with an end of the epicondylar axis such that the distal surface of the base plate is positioned
a predetermined distance from the epicondylar axis,

wherein the marking is positioned between the proximal end of the measurement gauge and the distal surface.

US Pat. No. 9,943,319

GRATER AND TRIAL LINER

DEPUY IRELAND UNLIMITED C...

1. An instrument for preparing an acetabulum, the instrument comprising:a handle having a reamer coupling feature and a trial coupling feature;an acetabular reamer having an outer cutting surface and an inner concave surface having an apex, the acetabular reamer having a first handle coupling feature located at the apex adapted to couple to the reamer coupling feature of the handle; anda trial having an outer convex surface having an apex, the outer convex surface adapted to fit inside the inner concave surface of the acetabular reamer, the trial having a second handle coupling feature located at the apex of the outer convex surface adapted to couple to the trial coupling feature of the handle;
wherein the trial coupling feature includes a slidable sleeve having a locking recess and the second handle coupling feature having flexible fingers adapted to engage the locking recess of the slidable sleeve; and
wherein the reamer coupling feature of the handle includes a locking feature and the first handle coupling feature of the reamer includes a locking feature, wherein the locking feature of the reamer coupling feature is adapted to engage the locking feature of the first handle coupling feature.

US Pat. No. 10,111,754

ACETABULAR SHELL AND LINER SYSTEM

DEPUY IRELAND UNLIMITED C...

1. A trial liner system for use in hip arthroplasty including:a first trial liner having a generally convex outer surface and a generally concave inner surface, the generally concave inner surface having a first locking mechanism; and
a second trial liner having a generally convex outer surface and a generally concave inner surface, the generally convex outer surface having a second locking mechanism adapted to lock with the first locking mechanism of the first trial liner when the second trial liner is inserted into the first trial liner, wherein one of the first and second locking mechanisms are recesses and the other of the first and second locking mechanisms are protrusions sized and shaped to lock into the recesses and the recess of the first locking mechanism being transverse to the recess of the second locking mechanism such that when the protrusions are locked into the corresponding recesses, the second trial liner cannot move relative to the first trial liner.

US Pat. No. 9,532,879

FEMORAL KNEE PROSTHESIS SYSTEM WITH AUGMENTS AND MULTIPLE LENGTHS OF SLEEVES SHARING A COMMON GEOMETRY

DEPUY IRELAND UNLIMITED C...

1. A modular knee prosthesis system, comprising: a distal femoral implant component having (i) a pair of spaced, curved distal
condylar surfaces, (ii) a distal bone-facing surface, and (iii) a stem having an outer surface tapering from a distal end
in a proximal direction, the outer surface of the stem having a maximum outer diameter at the distal end and a smaller outer
diameter at a second position proximal to the distal end, a distal femoral augment configured to be secured to the distal
bone-facing surface of the distal femoral implant component, a proximal tibial implant component having an articulating surface
to receive and articulate with the distal condylar surfaces of the distal femoral implant component and a stem, the stem having
an outer surface tapering from a proximal end in the distal direction, the outer surface of the stem having a maximum outer
diameter at the proximal end and a smaller outer diameter at a second position distal to the proximal end, a first metaphyseal
member having an outer surface that tapers in the proximal direction and an inner surface defining a tapered bore sized and
shaped to be mountable on the stem of one of the implant components and to create a frictional lock between the stem and the
first metaphyseal member, the outer surface of the first metaphyseal member comprising a stepped portion having a plurality
of steps, each step having a maximum medial-lateral dimension and a maximum anterior-posterior dimension, the stepped portion
having an overall axial length L, and a second metaphyseal member having an outer surface that tapers in the proximal direction
and an inner surface defining a tapered bore sized and shaped to be mountable on the stem of one of the implant components
and to create a frictional lock between the stem and the second metaphyseal member, the outer surface of the second metaphyseal
member comprising a stepped portion having a plurality of steps, each step having a maximum medial-lateral dimension and a
maximum anterior-posterior dimension, the stepped portion having an overall axial length L+X, wherein (i) the maximum medial-lateral
dimension of each step over the axial length L of the stepped portion of the second metaphyseal member is the same as the
maximum medial-lateral dimension of each step over the axial length L of the stepped portion of the first metaphyseal member
and the maximum anterior-posterior dimension of each step over the axial length L of the stepped portion of the second metaphyseal
member is the same as the maximum anterior-posterior dimension of each step over the axial length L of the stepped portion
of the first metaphyseal member so that the same prepared bone space will receive either the first metaphyseal member or the
stepped portion of the second metaphyseal member having the axial length L, and (ii) the distal femoral augment has a thickness
that is substantially equal to X, wherein the axial height of each step over the axial length L of the first metaphyseal member
is equal to the axial height of each step over the axial length L of the second metaphyseal member,
wherein the distal femoral augment further includes (i) a tapered anterior surface configured to engage an anterior chamfer
surface of the distal femoral implant component, (ii) a tapered posterior surface to engage a posterior chamfer surface of
the distal femoral implant component when the distal femoral implant augment is secured to the distal bone-facing surface
of the distal femoral augment component, and (iii) a posterior notch sized to receive a posterior femoral augment.

US Pat. No. 9,681,963

BONE SIZING GUIDE

DEPUY IRELAND UNLIMITED C...

1. A bone sizing guide for assessing the size of an end of a bone, the bone sizing guide comprising:
a body comprising a foot component having a first surface to rest against an end surface of the bone and a foot extending
transverse to the first surface to contact a side surface of the bone,

a superstructure coupled to the body so that the superstructure can slide relative to the body towards and away from the body,
at least one of the superstructure and the body being adjustable so that a rotational direction in which the superstructure
extends relative to the foot component about a first axis extending transverse to the first surface is adjustable,

a stylus extending from the superstructure transverse to the first surface of the body, the stylus having a tip to contact
a surface of the bone,

a scale coupled to or formed on a first one of the superstructure and the body, and
an indicator coupled to or formed on a second one of the superstructure and the body to identify a position on the scale,
in which the identified position on the scale shifts as the superstructure slides towards or away from the body, and the identified
position shifts as the superstructure rotates relative to the body without sliding motion between the superstructure and the
body, such that the identified position on the scale is indicative of the distance between the stylus and the foot.

US Pat. No. 9,603,649

INSTRUMENTS FOR USE IN DISASSEMBLING IMPLANTS

DEPUY IRELAND UNLIMITED C...

1. An orthopaedic surgical instrument comprising:
a main component including a housing and an elongated body extending from the housing, the housing and the elongated body
defining a longitudinal axis, wherein a passageway is defined in the elongated body along the longitudinal axis,

a rod component including (i) a head configured to be received in the housing of the main component and (ii) an elongated
shaft extending from the head, configured to pass through the elongated body of the main component, and

a spindle component including (i) a threaded body configured to engage the head of the rod component to move the rod component
along the longitudinal axis as the threaded body is threaded into the housing, and (ii) a handle body opposite the threaded
body,

wherein the elongated shaft has a length greater than a length of the elongated body of the main component,
wherein the head of the rod component has a diameter greater than a diameter of the passageway of the elongated body of the
main component, and

wherein the handle body is configured to receive a handle component for threading the spindle component.

US Pat. No. 9,554,810

FEMORAL SYSTEM HANDLE SURGICAL INSTRUMENT AND METHOD OF ASSEMBLING SAME

DEPUY IRELAND UNLIMITED C...

1. An orthopaedic surgical instrument, comprising:
a handle including (i) an elongated body extending from a distal end to a proximal end, the elongated body having (a) a first
side wall having a first elongated opening defined therein, (b) a second side wall having a second elongated opening defined
therein, (c) a cavity defined therein, and (ii) a guide pin extending from the proximal end,

a first lever extending outwardly from the cavity to a distal end through the first opening, the first lever including a proximal
end that is pivotally coupled to the elongated body within the cavity,

a second lever including (i) a lever body extending outwardly from the cavity to a proximal end through the second opening,
the lever body having a distal end that is pivotally coupled to the elongated body within the cavity, and (ii) a catch extending
from the proximal end of the lever body, and

a leaf spring connecting the first lever to the second lever such that movement of the first lever causes movement of the
second lever,

wherein the first lever is pivotal between (i) an unclamped position in which the distal end of the first lever is spaced
a first distance from the elongated body and (ii) a clamped position in which distal end of the first lever is spaced a second
distance from the elongated body that is less than the first distance,

wherein (i) when the first lever is in the unclamped position, the second lever is in a first position in which the catch
is spaced a first distance from the guide pin and (ii) when the first lever is in the clamped position, the second lever is
in a second position in which the catch is spaced a second distance from the guide pin that is less than the first distance,

wherein the leaf spring is placed in tension when the first lever is in the clamped position to lock the second lever in the
second position, and

wherein the cavity includes an interior wall facing the second opening wherein the interior wall and the second side wall
define an oblique angle, the lever body of the second lever includes an arm coupled to the catch and a shoulder coupled between
the arm and the distal end, wherein an angled surface of the shoulder faces the interior wall, and the angled surface of the
shoulder defines an oblique angle with respect to an interior surface of the arm, and the angled surface of the second lever
engages the interior wall when the second lever is in the second position.

US Pat. No. 9,770,855

METHOD OF MANUFACTURING A SURGICAL INSTRUMENT OR PROSTHESIS

LAKE REGION MEDICAL, INC....

1. A method of manufacturing a surgical instrument or prosthesis, comprising the steps of:
injecting a first material into a first mold to form an interim component; and
injecting a second material into a second mold containing at least part of the interim component to form the surgical instrument
or prosthesis such that portions of the first and second materials are exposed at the external surface of the surgical instrument
or prosthesis;

wherein the first and second materials are visually distinct such that at least one exposed portion of the first or second
material adjacent to an exposed portion of the other material forms a marking which is visible to a user,

wherein in the step of injecting the second material into the second mold comprises injecting the second material such that
the second material is deposited upon a selected portion of the surface of the interim component such that the second material
in contact with the selected portion forms a marking;

wherein the selected portion of the surface of the interim component has a recess arranged to receive the second material
to form the marking;

wherein the recess communicates with at least one blind hole formed in the interim component, the at least one blind hole
spaced apart from the surface of the interim component surrounding the recess; and

wherein the blind hole is arranged to receive gas within the recess during the step of injecting the second material into
the second mold.

US Pat. No. 9,668,883

TRIAL KIT FOR KNEE PROSTHESIS SYSTEM

DEPUY IRELAND UNLIMITED C...

1. A trial kit for a knee implant system, wherein the trial kit includes:
a tibial base plate trial, an adaptor and a tibial bearing insert trial;
wherein
the tibial base plate trial has an upper surface, a bottom surface, a button head extending upwardly beyond the upper surface,
the button head having a knob and a reduced diameter neck extending from the knob toward the upper surface of the tibial base
plate trial;

the adaptor has a base including an upper surface, a lower surface spaced from the upper surface, a posterior face, an anterior
face, and side surfaces between the upper and lower surfaces;

the adaptor further includes an elongate post extending upwardly from the upper surface of the base to a superior end, the
elongate post having a superior-inferior central longitudinal axis and a substantially cylindrical shape for a substantial
portion of its length;

the base of the adaptor has surfaces defining an adaptor channel in its lower surface extending from a posterior opening in
the posterior face of the base in an anterior direction;

the surfaces defining the adaptor channel are sized and shaped to define an undercut and are sized and shaped so that the
adaptor can be mounted on the tibial base plate trial by sliding the adaptor in a posterior direction on the upper surface
of the base plate trial until the knob of the button head is received in the adaptor channel, the sizes and shapes of the
undercut in the adaptor channel and the knob and reduced diameter neck preventing the adaptor from lifting off the tibial
base plate trial;

the tibial bearing insert trial has a superior articulation surface, a spine extending superiorly beyond the superior articulation
surface, and an inferior surface having a recess to receive the base of the adaptor;

the tibial bearing insert trial has a surface within the recess defining an upper recess surface;
the upper recess surface has an opening;
the opening leads to a first insert channel in the spine of the tibial bearing insert trial;
at least a portion of the first insert channel is sized, shaped and oriented to receive the elongate post of the adaptor to
mount the tibial bearing insert trial on the adaptor and allow for the tibial bearing insert trial to move in a superior direction
with respect to the adaptor;

the tibial bearing insert trial can be assembled with the adaptor by inserting the superior end of the elongate post into
the opening in the upper recess surface of the tibial bearing insert trial;

the assembly of the tibial bearing insert trial and the adaptor can be mounted on the tibial base plate trial by sliding the
assembly in a posterior direction on the upper surface of the tibial base plate trial until the button head is received within
the adaptor channel.

US Pat. No. 9,636,122

FEMORAL ORTHOPAEDIC INSTRUMENT ASSEMBLY FOR SETTING OFFSET

DEPUY IRELAND UNLIMITED C...

1. An orthopaedic surgical instrument assembly, comprising:
a cutting block comprising:
a base plate,
an intramedullary orthopaedic surgical instrument configured to be inserted into a medullary canal of a patient's femur, and
an adaptor positioned in a slot defined in the base plate, the adaptor including (i) a mounting bracket engaged with the base
plate, (ii) a first adaptor body coupled to and extending from the mounting bracket, and (iii) a second adaptor body configured
to extend into the medullary canal and pivotally coupled to the first adaptor body, the second adaptor body including a fastener
coupled to the intramedullary orthopaedic surgical instrument,

wherein (i) the first adaptor body defines a first axis, (ii) the intramedullary orthopaedic surgical instrument includes
an elongated body that defines a second axis extending parallel to the first axis, and (iii) when the second adaptor body
is pivoted relative to the first adaptor body, the elongated body is pivoted about the first axis, and

wherein the intramedullary orthopaedic surgical instrument further comprises (a) a stem trial including the elongated body
and an externally-threaded end, and (b) a stem stabilizer including a second elongated body, the second elongated body having
(i) an internally-threaded first end engaged with the externally-threaded end of the stem trial and (ii) an internally-threaded
second end positioned opposite the first end, the second end being engaged with a threaded shaft of the fastener of the adaptor.

US Pat. No. 9,861,491

TIBIAL TRIAL SYSTEM FOR A KNEE PROSTHESIS

DEPUY IRELAND UNLIMITED C...

1. An orthopaedic surgical instrument system for use during a surgical procedure to implant an orthopaedic knee prosthesis,
comprising:
a tibial base trial component adapted to be positioned on a surgically-prepared proximal end of a patient's tibia, the tibial
base trial component having an opening defined therein,

an insert component shaped to be received in the opening defined in the tibial base trial component, the insert component
having a base plate and a central post extending upwardly from a superior surface of the base plate, wherein a superior surface
of the central post has a ramp surface defined therein, the ramp surface inclines superiorly in an anterior-to-posterior direction,
and

a tibial bearing trial component having an opening defined therein, the central post of the insert component being configured
to be received in the opening of the tibial bearing trial assembly.

US Pat. No. 10,105,242

SURGICAL INSTRUMENT AND METHOD

Depuy Ireland Unlimited C...

1. A method for carrying out a knee arthroplasty procedure, comprising:resecting the proximal part of the tibia or the distal part of the femur to produce a substantially flat bone surface;
placing an adjustable spacer instrument having an upper surface and a lower surface on the flat bone surface in a gap between the tibia and the femur;
operating the adjustable spacer instrument to vary the degree of tilt between the upper surface and the lower surface; and
assessing the balance of ligaments of the knee;
wherein operating the adjustable spacer instrument includes rotating the upper surface relative to the lower surface of the adjustable spacer instrument about an axis extending in a superior-inferior direction to vary the degree of tilt.

US Pat. No. 9,724,201

MODULAR TAPER SEAL FOR ORTHOPAEDIC PROSTHETIC HIP ASSEMBLY

DEPUY IRELAND UNLIMITED C...

1. An orthopaedic prosthetic hip assembly, comprising:
a stem component configured to be received in a proximal end of a patient's surgically-prepared femur, the stem component
comprising a neck including a tapered trunnion and an elongated body extending distally from the neck,

a femoral head component configured to engage a surgically-prepared acetabulum or a prosthetic acetabular cup, the femoral
head component having (i) a distal opening, (ii) a tapered bore extending inwardly from the distal opening to define an aperture
sized to receive a proximal end of the neck of the stem component, and (iii) an annular slot defined in the tapered bore and
includes the distal opening, and

a compressible seal is positioned in the annular slot of the femoral head component,
wherein (i) the femoral head component is secured to the stem component via a taper lock formed between the tapered bore of
the femoral head component and the tapered trunnion of the stem component, and (ii) the compressible seal engages the tapered
trunnion of the stem component to prevent fluid from advancing toward a proximal end of the aperture,

wherein the neck includes an annular flange positioned adjacent to the tapered trunnion, and the compressible seal is engaged
with the annular flange.

US Pat. No. 9,931,216

ORTHOPAEDIC FEMORAL COMPONENT HAVING CONTROLLED CONDYLAR CURVATURE

DEPUY IRELAND UNLIMITED C...

1. An orthopaedic knee prosthesis comprising:a femoral component having a condyle surface curved in the sagittal plane; and
a tibial bearing having a bearing surface configured to articulate with the condyle surface of the femoral component,
wherein the condyle surface (i) contacts the bearing surface at a first contact point on the condyle surface at a first degree of flexion, the first degree of flexion being in the range of 0 degrees to 10 degrees, (ii) contacts the bearing surface at a second contact point on the condyle surface at a second degree of flexion, the second degree of flexion being in the range of 10 degrees to 75 degrees, and (iii) contacts the bearing surface at a third contact point on the condyle surface at a third degree of flexion, the second degree of flexion being greater than the first degree of flexion and the third degree of flexion being greater than the second degree of flexion,
wherein (i) the condyle surface in the sagittal plane has a first radius of curvature at the first contact point, a second radius of curvature at the second contact point, and a third radius of curvature at the third contact point, and (ii) the second radius of curvature is greater than the first radius of curvature and the third radius of curvature is less than the second radius of curvature,
wherein the third radius of curvature is greater than the first radius of curvature by at least 0.5 millimeters, and
wherein a curved surface section having a non-constant radius of curvature is defined between the first contact point and the third contact point.

US Pat. No. 10,137,008

SURGICAL INSTRUMENT AND METHOD OF POSITIONING AN ACETABULAR PROSTHETIC COMPONENT

DEPUY IRELAND UNLIMITED C...

1. An orthopaedic surgical instrument for positioning an acetabular prosthetic component in a patient's surgically-prepared acetabulum, the instrument comprising:a base including a plurality of mounting legs configured to engage the patient's pelvis,
a first linkage pivotally coupled to the base, and
a locking mechanism operable to lock the first linkage in position relative to the base,
wherein the first linkage includes an indicator operable to provide an indication of a position of the instrument, and the instrument further comprises a second linkage removably coupled to the first linkage, the second linkage having an alignment axis corresponding to a desired abduction angle and a desired anteversion angle of the acetabular axis of the acetabular prosthetic component.

US Pat. No. 10,010,329

FEMORAL ORTHOPAEDIC SURGICAL INSTRUMENT AND METHOD

DEPUY IRELAND UNLIMITED C...

1. A method for performing an orthopaedic surgical procedure on a femur, the method comprising:positioning a distal end of an intramedullary adaptor in a slot defined in a base cutting block,
securing the distal end of the intramedullary adaptor to the base cutting block,
attaching a proximal end of the intramedullary adaptor to an intramedullary orthopaedic surgical instrument after securing the intramedullary adaptor to the base cutting block,
positioning the base cutting block on a distal end of the femur, and
detaching the distal end of the intramedullary adaptor from the base cutting block while the base cutting block is positioned on the distal end of the femur.

US Pat. No. 9,737,408

TIBIAL IMPACTION GUIDE SURGICAL INSTRUMENT AND METHOD OF USING SAME

DEPUY IRELAND UNLIMITED C...

1. An orthopaedic surgical instrument having a component-engaging side and a back side includes:
a cup positioned on the component-engaging side, the cup including: (i) an outer surface having an opening positioned on the
component-engaging side and (ii) an inner wall extending from the opening of the outer surface to a back wall, the inner wall
having a plurality of stepped surfaces facing the component-engaging side,

a slot defined in the cup that extends from the component-engaging side to the back side, through the outer surface and the
inner wall, the slot being positioned on a medial side of the instrument, and

a collar coupled to the outer surface of the cup toward the back side, the collar including (i) an opening toward the back
side sized to receive an impaction handle and (ii) a flange positioned in the opening that is configured to be secured to
the impaction handle,

wherein each of the plurality of stepped surfaces is sized to receive a platform of a tibial tray.

US Pat. No. 9,668,745

ANATOMICAL CONCENTRIC SPHERES THA

DEPUY IRELAND UNLIMITED C...

1. A trial for use with total hip arthroplasty, the trial comprising:
a first spherical insert having a plurality of tabs mounted thereto, each of the plurality of tabs at least partially defining
an orifice, wherein the first spherical insert is sized to fit within an unreamed acetabulum, the first spherical insert further
being sized to contact the acetabulum and a resected femoral neck when the first spherical insert is positioned within the
unreamed acetabulum.

US Pat. No. 10,022,234

ASSEMBLY TOOL

DEPUY IRELAND UNLIMITED C...

1. An instrument for assembling a head on a neck of a stem, the head and neck being coupled via a taper having a taper axis, the instrument comprising: a frame having a distal portion and a proximal portion, the distal portion of the frame including a retaining member adapted to engage a portion of the neck, wherein the retaining member includes a pair of moveable arms extending from the distal portion of the frame, the pair of moveable arms adapted to engage a pair of recesses on opposing sides of the neck;a force applier retained in the proximal portion of the frame, having an axis that is coaxial with the taper axis, wherein the force applier is adapted to engage the head;
wherein as the force applier is activated, the force applier applies a force on the head while the neck is held in place by the frame, thereby causing the tapers of the head and neck to engage;
wherein the frame includes a middle portion having a body and wherein the body includes a pair of channels adapted to slidably retain the pair of arms.

US Pat. No. 9,877,757

ARTHROPLASTY PLATE

DEPUY IRELAND UNLIMITED C...

1. A method of repairing a fractured end of a humerus, the method comprising:
removing fractured portions of an articulating bone surface at the end of the humerus;
using a shoulder prosthesis, the shoulder prosthesis comprising:
a fixation plate comprising an elongate body portion arranged to extend distally along the lateral external surface of the
humerus, the elongate body portion having a lateral side with a proximal opening formed thereon and a plurality of fastener
holes arranged to receive bone fasteners for securing the fixation plate to the bone;

a tubular barrel integrally formed with and extending from the fixation plate, the barrel configured to be inserted into a
bore formed in the proximal humerus extending from a lateral bone surface to a resected humeral head, the barrel having an
axis and a barrel bore, the barrel bore communicating with the proximal opening in the fixation plate;

a connector rod having a first end and a second end, the second end being slidable within the barrel bore, the connector rod
having a connector bore extending therethrough;

an articulation component having a bearing surface, the articulation component coupled to the first end of the connector rod
and away from the fixation plate;

a tubular adjustment sleeve rotatably and entirely disposed within the barrel, the adjustment sleeve having a first end with
an exterior screw thread, a second end defining a sleeve head portion, and an adjustment sleeve bore extending therethrough,
the first end of the adjustment sleeve being threadably coupled to the connector bore of the connector rod, the adjustment
sleeve rotatable between a first position, whereat the first end of the connector rod is a first distance as measured from
the lateral side of the fixation plate, to a second position, whereat the first end of the connector rod is a second distance
as measured from the lateral side of the fixation plate, the second distance being greater than the first distance; and

a locking screw disposed within the adjustment sleeve bore and threadably coupled to the connector rod, the locking screw
comprising a screw head portion,

wherein the barrel includes an inner surface that forms the barrel bore, the barrel comprises an annular flange formed on
the inner surface and adjacent to the opening formed on the lateral side of the fixation plate, the annular flange extending
from the inner surface toward the axis of the barrel and defining a first side and a second side, the sleeve head portion
disposed on the first side of the annular flange and the screw head portion disposed on the second side of the annular flange,
and wherein when the locking screw engages the connector rod bore the annular flange is positioned between the sleeve head
portion and the screw head portion;

securing said fixation plate to the lateral external surface of the humerus;
sliding the second end of the connector rod into or out of the barrel to adjust the length of the connector rod extending
from the barrel; and

locking the position of the connector rod within the barrel to rigidly space the articulation component apart from the fixation
plate by screwing said locking screw into the connector bore to prevent further movement between the adjustment sleeve and
the connector rod.

US Pat. No. 9,539,099

ORTHOPAEDIC KNEE PROSTHESIS HAVING CONTROLLED CONDYLAR CURVATURE

DEPUY IRELAND UNLIMITED C...

1. An orthopaedic knee prosthesis comprising:
a femoral component having a condyle surface curved in the sagittal plane, wherein the condyle surface is configured to contact
a bearing surface of a tibial bearing at (i) a first contact point on the condyle surface at a first degree of flexion in
a range of ?10 degrees to 0 degrees, and (ii) a second contact point on the condyle surface at a second degree of flexion
greater than 90 degrees,

wherein the condyle surface in the sagittal plane between the first contact point and the second contact point is defined
by at least five curved surface sections, and each curved surface section having a radius of curvature that extends from an
origin point,

wherein an arc is defined by the origin points of the radii of curvature, and the origin point of each curved surface section
posterior to the anterior-most curved surface section is posterior to the origin point of an anteriorly-adjacent curved surface
section.

US Pat. No. 10,070,973

ORTHOPAEDIC SENSOR MODULE AND SYSTEM FOR DETERMINING JOINT FORCES OF A PATIENT'S KNEE JOINT

DePuy Ireland Unlimited C...

1. An orthopaedic surgical device for measuring a joint force of a patient's joint, the orthopaedic surgical device comprising:a tibial paddle shaped to be positioned between a proximal end of a patient's tibia and a distal end of a patient's femur, the tibial paddle having (i) a substantially planar upper surface, (ii) a substantially planar bottom surface, (iii) a top paddle housing having a first outer sidewall that defines an outer edge of the top paddle housing, a first opening defined in the substantially planar upper surface, and a first inner sidewall that defines a first centrally-located aperture that is spaced apart from the first outer sidewall and extends inwardly from the first opening, the first centrally-located aperture being enclosed completely by the first inner sidewall, (iv) a bottom paddle housing having a second outer sidewall that defines an outer edge of the bottom paddle housing, a second opening defined in the substantially planar bottom surface, and a second inner sidewall that defines a second centrally-located aperture that is spaced apart from the second outer sidewall and extends inwardly from the second opening, the second centrally-located aperture being enclosed completely by the second inner sidewall, and (v) a posterior notch extending inwardly from the first outer sidewall and the second outer sidewall, wherein the first and second apertures are in fluid communication with each other to define, in part, a vertical passageway through the tibial paddle that is spaced apart from the posterior notch,
a sensor array positioned in the tibial paddle and configured to generate sensor signals indicative of a joint force between the patient's tibia and femur, the sensor array comprising a plurality of medial-anterior sensors to measure a medial-anterior force component of the joint force, a plurality of medial-posterior sensors to measure a medial-posterior force component of the joint force, a plurality of lateral-anterior sensors to measure a lateral-anterior force component of the joint force, and a plurality of lateral-posterior sensors to measure a lateral-posterior force component of the joint force, each of the medial-anterior sensors and lateral-anterior sensors having a substantially equal surface area and each of the medial-posterior sensors and lateral-posterior sensors having a substantially equal surface area,
an elongated handle secured to the tibial paddle and defining a longitudinal axis that is offset from an anterior-to-posterior bisecting axis of the tibial paddle,
a first display secured to an end of the handle distal from the tibial paddle, and
a circuit positioned in the handle, the circuit configured to receive the sensor signals from the sensor array and to control the first display to provide a visual indication of the medial-lateral balance of the joint force.

US Pat. No. 9,750,554

INSTRUMENT FOR EXTRACTING A PIN

1. An instrument for extracting a pin from a substrate, the instrument comprising:
a first lever arm with a body part having a channel in which a free end of a pin can be received,
a second lever arm which can pivot relative to the first lever arm,
a gripping member within the body part by which the pin can be gripped to retain the pin in the channel, and
a terminating member mounted on the body part having an end face and two side walls which extend along opposite sides of the
body part, wherein the terminating member has a slot provided in a portion of the end face and extending along a portion of
at least one of the two side walls, the slot configured to guide the free end of the pin into the instrument prior to being
received into the channel;

wherein the body part includes a main section and a tip portion having a forward face with an aperture provided in the forward
face for guiding the pin into the channel, and the terminating member includes an inclined, recessed guide surface for guiding
the free end of the pin into alignment with the aperture.

US Pat. No. 10,136,901

ANATOMICAL CONCENTRIC SPHERES THA

Depuy Ireland Unlimited C...

1. A cutting guide for use with total hip arthroplasty, the cutting guide comprising:a semispherical cutting guide for coupling to a proximal femur, the cutting guide including a concave cutting guide surface section that mimics the arc of a natural femoral ball of a hip joint and is configured to guide a cutting tool to remove the natural femoral ball and form a concave resected surface on the proximal femur, the cutting guide including a retainer configured to be secured to the proximal femur below the natural femoral ball of the hip joint.

US Pat. No. 10,039,645

RELEASABLE THREADED CONNECTION FOR MODULAR IMPLANTS

DePuy Ireland Unlimited C...

1. An orthopaedic modular knee prosthesis system, comprising:a femoral component including (i) a pair of condyle surfaces sized to articulate with a tibial bearing, wherein the pair of condyle surfaces are spaced apart from one another thereby defining an intercondylar notch therebetween, (ii) a distal opening defined in the intercondylar notch, (iii) a fixation bone-contacting surface positioned opposite the pair of condyle surfaces and configured to engage a femur of a patient, and (iv) an elongated stem-mounting post extending from the fixation bone-contacting surface along a longitudinal axis, the post including a proximal opening defined in a free end and an inner wall that extends inwardly from the proximal opening along the longitudinal axis to the distal opening, wherein (a) the inner wall of the post defines a first cylindrical passageway extending from the distal opening, a second cylindrical passageway in the post, and an inner rim surface at an intersection of the first cylindrical passageway and the second cylindrical passageway, (b) the first cylindrical passageway extends from the distal opening to the inner rim surface, and the second cylindrical passageway extends from the inner rim surface to the proximal opening, (c) the second cylindrical passageway includes a plurality of internal threads, and (d) the second cylindrical passageway has a diameter larger than a diameter of the first passageway,
a femoral stem component adapted to be implanted into a surgically-prepared patient's femur, the femoral stem component including (i) a first end, (ii) an elongated body extending from the first end, and (iii) a threaded bore defined in the first end,
a cylindrical retainer secured within the second cylindrical passageway of the post adjacent to the free end, the retainer including (i) a central bore that extends along the longitudinal axis of the post, and (ii) a threaded outer surface that is engaged with the internal threads of the second cylindrical passageway to secure the retainer within the second cylindrical passageway of the post,
a fastener having (i) a head positioned in the second cylindrical passageway, the head having a diameter greater than a diameter of the central bore of the retainer and greater than the diameter of the first cylindrical passageway such that the head is retained in the second cylindrical passageway between the retainer and the inner rim surface and does not pass beyond the inner rim surface and into the first cylindrical passageway when the fastener is positioned in the second cylindrical passageway, and (ii) a threaded rod extending away from the head through the central bore of the retainer to an end positioned beyond the free end of the post, and
a surgical instrument tool having an end sized to be received in the first cylindrical passageway,
wherein the threaded rod of the fastener is configured to be engaged with the threaded bore of the stem component to secure the femoral component to the stem component,
wherein, when the end of the surgical instrument tool is received in the first cylindrical passageway, said end is configured to engage the head of the fastener and selectively rotate the fastener to secure the femoral component to the stem component.

US Pat. No. 10,085,758

PATELLA DRILL GUIDE AND TRIAL SURGICAL INSTRUMENT HAVING AN ALIGNMENT BORE FORMED THEREIN AND METHOD OF USING THE SAME

DEPUY IRELAND UNLIMITED C...

1. A patella drill guide and trial instrument, comprising:a posterior trial bearing surface configured to articulate with a condylar surface of a prosthetic femoral component, the posterior trial bearing surface comprising a curved peak surface that defines the posterior-most surface of the patella drill guide and trial instrument,
an anterior surface having a plurality of spikes extending outwardly therefrom,
a plurality of drill guide holes extending through the patella drill guide and trial instrument from the posterior trial bearing surface to the anterior surface, and
an alignment bore extending through the patella drill guide and trial instrument from the posterior trial bearing surface to the anterior surface, wherein the alignment bore has a different diameter than the plurality of drill guide holes.

US Pat. No. 10,045,849

MOMENT INDUCED TOTAL ARTHROPLASTY PROSTHETIC

DEPUY IRELAND UNLIMITED C...

1. A fixed bearing prosthetic knee joint system comprising:a distal femoral implant component having a medial condyle, a lateral condyle and a cam extending between the medial and lateral condyles; and
a tibial component comprising a tibial tray and a fixed bearing tibial insert mountable on the tray to be fixed against rotation, the fixed bearing tibial insert having a medial condyle receiver, a lateral condyle receiver and a stabilizing post positioned to engage the cam of the femoral implant component during articulation;
wherein:
the fixed bearing tibial insert has a medial-lateral centerline;
the stabilizing post has a medial-lateral centerline offset laterally from and parallel to the medial-lateral centerline of the fixed bearing tibial insert.

US Pat. No. 9,987,023

ORTHOPAEDIC CUTTING TOOL HAVING A CHEMICALLY ETCHED METAL INSERT AND METHOD OF MANUFACTURING

DEPUY IRELAND UNLIMITED C...

16. A method for manufacturing an orthopaedic surgical instrument, the method comprising:chemically etching a plurality of holes into each of a plurality of metallic cutting inserts; and
molding a body to the plurality of cutting inserts such that a portion of the body at least partially fills each of the plurality of holes in each of the plurality of cutting inserts to create adhesion between the plurality of cutting inserts and the body to form an orthopaedic cutting tool.

US Pat. No. 10,022,130

POLYMER 4-IN-1 FEMORAL CUTTING BLOCK

DePuy Ireland Unlimited C...

1. An orthopaedic surgical instrument comprising:a polymer 4-in-1 femoral cutting block having a bone-engaging surface and an outer surface opposite the bone-engaging surface,
a chamfer cutting slot defined in the polymer 4-in-1 femoral cutting block, the chamfer cutting slot extending from a first opening defined in the outer surface to a second opening defined in the bone-engaging surface,
a first metallic planar cutting guide secured within the chamfer cutting slot, the first metallic planar cutting guide being defined by (i) a first planar surface and (ii) a second planar surface spaced apart from, and extending parallel to, the first planar surface, the first and second planar surfaces extending from a lateral end to a medial end of the first metallic planar cutting guide,
a second metallic planar cutting guide secured within the chamfer cutting slot, the second metallic planar cutting guide being defined by (i) a third planar surface extending at an oblique angle relative to the first planar surface, and (ii) a fourth planar surface extending parallel to, spaced apart from, the third planar surface, the third and fourth planar surfaces extending from a lateral end to a medial end of the second metallic planar cutting guide,
a first metallic bushing secured within the chamfer cutting slot of the polymer 4-in-1 femoral cutting block, the first metallic bushing extending from the first opening of the chamfer cutting slot defined in the outer surface toward the second opening of the chamfer cutting slot defined in the bone-engaging surface, an outer surface of the first metallic bushing being positioned at the lateral end of each of the first and second metallic planar cutting guides, and
a second metallic bushing secured within the chamfer cutting slot of the polymer 4-in-1 femoral cutting block, the second metallic bushing extending from the first opening of the chamfer cutting slot defined in the outer surface toward the second opening of the chamfer cutting slot defined in the bone-engaging surface, an outer surface of the second metallic bushing being positioned at the medial end of each of the first and second metallic planar cutting guides.

US Pat. No. 9,883,876

ORTHOPAEDIC CUTTING BLOCK HAVING A CHEMICALLY ETCHED METAL INSERT AND METHOD OF MANUFACTURING

DEPUY IRELAND UNLIMITED C...

1. A method for manufacturing an orthopaedic cutting block, the method comprising:
using chemical etching to form a plurality of holes in a metallic bearing insert configured to support a bone cutting tool,
wherein each of the plurality of holes extends through the entire thickness of the bearing insert; and

molding a body to the bearing insert such that a portion of the body at least partially fills the plurality of holes to create
adhesion between the bearing insert and the body to form the orthopaedic cutting block.

US Pat. No. 10,201,428

ORTHOPAEDIC SURGICAL INSTRUMENT SYSTEM AND METHOD FOR PROTECTING A FEMORAL STEM TAPER

DEPUY IRELAND UNLIMITED C...

1. An orthopaedic hip prosthesis system comprising:a femoral head component configured to articulate with a natural or prosthetic acetabulum of a patient, the femoral head component having a tapered bore formed therein,
a femoral stem component having a tapered trunnion configured to be received in the tapered bore of the femoral head component, and
a removable shell positioned over the tapered trunnion of the femoral stem component, the shell including (i) a frame extending over the tapered trunnion, and (ii) a protective coating applied over the frame and the tapered trunnion such that the coating contacts each of the frame and the tapered trunnion, wherein the tapered trunnion of the femoral stem component is configured to be taper locked to the femoral head component when the shell is removed from the tapered trunnion.

US Pat. No. 10,064,729

METHODS FOR MAINTAINING PROPER MECHANICS THA

Depuy Ireland Unlimited C...

1. A method of assembling a mobile bearing acetabular prosthetic component of a prosthetic hip joint, the method comprising:implanting an acetabular prosthetic cup including a rim surface, a concave curved inner surface extending inwardly from the rim surface to define an aperture in the acetabular prosthetic cup, and a first groove defined in the concave curved inner surface, the first groove extending along a first axis from a first opening defined in the rim surface to a second opening defined in the rim surface;
mounting a first acetabular prosthetic cup insert to the acetabular prosthetic cup, the first acetabular cup insert including a convex curved outer surface, a concave curved inner surface positioned opposite the convex curved outer surface, a second groove defined in the concave curved inner surface of the first acetabular prosthetic cup insert that extends along a second axis, and a first elongated tab extending outwardly from the convex curved outer surface of first acetabular prosthetic cup insert, wherein mounting the first acetabular prosthetic cup insert to the acetabular prosthetic cup includes inserting the first elongated tab into the first opening in the first groove defined in the acetabular prosthetic cup to advance the first acetabular prosthetic cup insert into the aperture defined in the acetabular prosthetic cup and repositioning the first acetabular prosthetic cup insert with respect to the acetabular prosthetic cup such that the first acetabular prosthetic cup insert extends outwardly from the second opening beyond the rim surface of the acetabular prosthetic cup; and
mounting a second acetabular prosthetic cup insert to the first acetabular prosthetic cup insert, the second acetabular prosthetic cup insert including a second elongated tab and a cavity sized to receive a prosthetic femoral ball, wherein mounting the second acetabular prosthetic cup insert to the first prosthetic acetabular prosthetic cup includes inserting the second elongated tab into the second groove defined in the first acetabular prosthetic cup insert and repositioning the second acetabular prosthetic cup insert with respect to the first acetabular prosthetic cup insert without disengaging the second acetabular prosthetic cup insert from the first acetabular prosthetic cup insert,
wherein the first axis extends orthogonal to the second axis when the mobile bearing acetabular prosthetic component is assembled such that the first acetabular prosthetic cup insert is configured to tilt along the second axis and the second acetabular prosthetic cup insert is configured to tilt along the first axis orthogonal to the second axis.

US Pat. No. 10,010,424

IMPLANT

DEPUY IRELAND UNLIMITED C...

1. A surgical method comprising the steps of:removing at least part of an articulating surface at an end of a bone;
coupling a distal portion of an arthroplasty implant to the end of the bone, the arthroplasty implant comprising a proximal neck portion extending from the distal portion;
securing bone fragments to a collar with sutures extending between the bone fragments or attached soft tissue and at least one of a plurality of attachment portions formed in the collar;
coupling complementary features of the collar and a reverse surface of an articulation component together to secure the collar to the reverse surface, the articulation component further comprising a bearing surface; and
coupling the articulation component to the proximal neck portion of the arthroplasty implant such that a neck hole of the collar passes around the coupling between the proximal neck portion of the arthroplasty implant and the articulation component; and wherein the step of securing the bone fragments to the collar is performed with the articulation component detached from the collar.

US Pat. No. 9,962,173

SURGICAL INSTRUMENTS AND METHOD OF SURGICALLY PREPARING A PATIENT'S TIBIA

DEPUY IRELAND UNLIMITED C...

1. A method of surgically preparing a proximal end of a tibia, the method comprising:inserting a broach into a medullary canal of the tibia to engage a plurality of cutting teeth of the broach with the tibia,
securing a housing of an attachment device to the broach by inserting a mounting shaft of the attachment device into an opening in the broach to secure the housing of the attachment device to the broach,
sliding a mounting frame along a rail toward the housing,
attaching a cutting block to the mounting frame, the cutting block having a cutting guide defined therein,
resecting the proximal end of the tibia using the cutting guide to form a surgically-prepared surface,
removing the broach from the medullary canal,
positioning a tibial base trial on a tibial sleeve trial,
inserting the tibial sleeve trial into the medullary canal, and
positioning the tibial base trial on the surgically-prepared surface.

US Pat. No. 9,962,264

ANTERIOR STABILIZED KNEE IMPLANT

DEPUY IRELAND UNLIMITED C...

1. A total knee implant prosthesis comprising:a femoral component including a pair of condyles, an opening defined between the pair of condyles, and an anterior cam extending between the pair of condyles adjacent to the opening, and
a tibial component including a first condyle depression, a second condyle depression, and a post positioned between the first condyle depression and the second condyle depression, the post having an anterior surface that is angled to face toward the first condyle depression and away from the second condyle depression,
wherein the anterior cam and the post are sized, shaped, and positioned so that the anterior cam and the anterior surface of the post are engaged when the knee is fully extended and the anterior cam and the anterior surface of the post are disengaged during at least part of flexion of the knee.

US Pat. No. 9,937,049

ORTHOPAEDIC KNEE PROSTHESIS HAVING CONTROLLED CONDYLAR CURVATURE

DEPUY IRELAND UNLIMITED C...

1. A posterior stabilized orthopaedic knee prosthesis comprising:a femoral component including (i) a pair of spaced apart condyles defining an intracondylar notch therebetween, at least one of the pair of spaced apart condyles having a condyle surface curved in the sagittal plane and (ii) a posterior cam positioned in the intracondylar notch; and
a tibial bearing including (i) a platform having a bearing surface configured to articulate with the condyle surface of the femoral component and (ii) a spine extending upwardly from the platform,
wherein the condyle surface of the femoral component (i) contacts the bearing surface at a first contact point on the condyle surface at a first degree of flexion, (ii) contacts the bearing surface at a second contact point on the condyle surface at a second degree of flexion, the second degree of flexion being greater than the first degree of flexion and in the range of about 0 degrees to about 50 degrees, and (iii) contacts the bearing surface at a third contact point on the condyle surface at a third degree of flexion, the third degree of flexion being greater than the second degree of flexion and less than about 90 degrees,
wherein (i) the condyle surface in the sagittal plane has a first radius of curvature at the first contact point, a second radius of curvature at the second contact point, and a third radius of curvature at the third contact point, and (ii) the first radius of curvature gradually transitions to the second radius of curvature through a plurality of rays having origins that are not positioned on the first radius of curvature, wherein each ray of the plurality of rays has a length that is different than the length of any other ray of the plurality of rays, and
wherein the posterior cam of the femoral component initially contacts the spine of the tibial bearing at a fourth degree of flexion, the fourth degree of flexion being no greater than about 10 degrees more than the third degree of flexion.

US Pat. No. 10,111,673

POLYMER 4-IN-1 FEMORAL CUTTING BLOCK INCLUDING METALLIC PROTECTIVE BUSHINGS

DEPUY IRELAND UNLIMITED C...

1. An orthopaedic surgical instrument comprising:a polymer 4-in-1 femoral cutting block having a sidewall that partially defines a chamfer cutting slot having a slot section between a first opening defined in a first surface of the sidewall and a second opening defined in a second surface of the sidewall,
a first metallic planar cutting guide secured within the chamfer cutting slot of the polymer 4-in-1 femoral cutting block,
a second metallic planar cutting guide secured within the chamfer cutting slot of the polymer 4-in-1 femoral cutting block, the second metallic planar cutting guide being arranged at an oblique angle relative to, and spaced apart from, the first metallic planar cutting guide,
a first metallic bushing secured within the chamfer cutting slot of the polymer 4-in-1 femoral cutting block, an outer surface of the first metallic bushing being positioned at a lateral end of each of the first and second metallic planar cutting guides, the first metallic bushing extending along the slot section of the chamfer cutting slot, wherein the first metallic bushing is configured to prevent a blade from engaging the polymer 4-in-1 femoral cutting block, and
a second metallic bushing secured within the chamfer cutting slot of the polymer 4-in-1 femoral cutting block, an outer surface of the second metallic bushing being positioned at a medial end of each of the first and second metallic planar cutting guides, the second metallic bushing extending along the slot section of the chamfer cutting slot, wherein the second metallic bushing is configured to prevent the blade from engaging the polymer 4-in-1 femoral cutting block.

US Pat. No. 9,895,232

RELEASABLE THREADED CONNECTION FOR MODULAR IMPLANTS

DEPUY IRELAND UNLIMITED C...

1. An orthopaedic modular knee prosthesis system comprising:
a femoral stem component adapted to be implanted into a surgically-prepared patient's femur, the femoral stem component including
(i) a first end, (ii) an elongated body extending from the first end, (iii) a second end opposite the first end, and (iv)
a threaded bore defined in the first end,

a femoral component including (i) an outer bearing surface having a pair of condyle surfaces sized to articulate with a tibial
bearing, wherein the pair of condyle surfaces are spaced apart from one another thereby defining an intercondylar notch therebetween,
(ii) a distal opening defined in the intercondylar notch, (iii) an inner bone-engaging surface positioned opposite the outer
bearing surface that is configured to face a femur of a patient, and (iv) an elongated stem-mounting post extending from the
inner bone-engaging surface along a longitudinal axis, the post including an outer opening defined in a free end and an inner
wall that extends inwardly from the outer opening to the distal opening, wherein (a) the inner wall of the post defines a
first passageway extending from the distal opening, a second passageway in the post, and a rim surface at an intersection
of the first passageway and the second passageway, (b) the first passageway extends from the distal opening to the rim surface,
and the second passageway extends from the rim surface to the outer opening, (c) the second passageway includes a plurality
of internal threads, and (d) the second passageway of the femoral component has a diameter larger than a diameter of the first
passageway,

a fastener having an elongated shaft including (i) a first axial section having a first plurality of threads sized to engage
with the plurality of internal threads of the second passageway of the post of the femoral component, and (ii) a second axial
section positioned opposite the first axial section, the second axial section having a second plurality of threads sized to
engage with the threaded bore of the femoral stem component to secure the femoral stem component to the femoral component,
and

a surgical instrument tool having an end sized to be received in the first passageway and configured to engage a distal surface
of the first axial section of the fastener to selectively rotate the fastener and decouple the femoral stem component from
the femoral component,

wherein the first axial section of the fastener has a diameter larger than a diameter of the second axial section of the fastener
and a diameter of the first passageway of the post, such that the first axial section of the fastener does not pass beyond
the rim surface and into the first passageway when the first axial section of the fastener is positioned in the second passageway,
and

wherein (i) the first plurality of threads of the first axial section has a first thread pitch and a first lead, (ii) the
second plurality of threads of the second axial section has a second thread pitch that is same as the first thread pitch and
a second lead that is the same as the first lead, and (iii) the first plurality of threads twist in a same direction as the
second plurality of threads.

US Pat. No. 10,085,838

ASSEMBLY TOOL

DEPUY IRELAND UNLIMITED C...

1. An instrument for assembling an implant on a neck, the implant and neck being coupled via a taper having a taper axis, the instrument comprising:a frame having a distal portion and a proximal portion, the distal portion of the frame including a retaining member adapted to engage a portion of the neck; and
a force applier retained in the proximal portion of the frame, the force applier including a screw having a screw axis that is coaxial with the taper axis, wherein the screw is adapted to engage the implant;
wherein as the screw is turned, the force applier applies a force on the implant while the neck is held in place by the frame, thereby causing the tapers of the implant and neck to engage and wherein the retaining member of the frame includes an annular groove and a protective insert adapted to protect the neck from being scratched by the frame.

US Pat. No. 10,092,421

SURGICAL INSTRUMENT AND METHOD OF USE

DEPUY IRELAND UNLIMITED C...

1. A surgical instrument for use in an orthopaedic arthroplasty procedure, the surgical instrument comprising:a shaft having a first end, a second end, and a longitudinal axis extending through a center of the shaft between the first and second ends, and a rear surface extending along the longitudinal axis between the first end and the second end, the rear surface including a pair of curved surfaces adapted to contact corresponding medial and lateral condyles of a femoral component;
a spine extending outwardly from the rear surface of the shaft between the pair of curved surfaces, the spine extending from the first end of the shaft in a direction perpendicular to the longitudinal axis having a longitudinal extent that is parallel to the longitudinal axis;
wherein when the first end of the shaft of the surgical instrument is in contact with a tibial implant component, the spine is adapted to be positioned within an intercondylar notch of the femoral component.

US Pat. No. 10,179,052

TOTAL KNEE IMPLANT PROSTHESIS ASSEMBLY AND METHOD

DEPUY IRELAND UNLIMITED C...

1. A total knee implant prosthesis comprising:a femoral component including a pair of condyles and a cam positioned between the pair of condyles, the cam having a convex curved surface including a center point that is laterally offset from a center line of the femoral component when the femoral component is viewed in a first plane, and
a tibial component including a medial bearing surface, a lateral bearing surface, and a post positioned between the medial bearing surface and the lateral bearing surface, the post having a curved surface that is angled to face toward the medial bearing surface and away from the lateral bearing surface when the tibial component is viewed in the first plane,
wherein the femoral component is configured to rotate relative to the tibial component between a full extension position and a full flexion position, and the cam and the post are sized, shaped, and positioned so that the cam engages the post at a contact point on the curved surface of the post when the femoral component is in the full extension position, and
wherein when the femoral component is rotated from the full extension position toward the full flexion position, the cam and the post are sized, shaped, and positioned so that the contact point moves laterally along the curved surface of the post, and the cam is disengaged from the post when the femoral component is in the full flexion position.

US Pat. No. 10,092,304

ORTHOPAEDIC SURGICAL INSTRUMENT ASSEMBLY FOR REAMING A PATIENT'S ACETABULUM

DePuy Ireland Unlimited C...

1. A surgical instrument assembly comprising:a metallic hemispherical component including (i) a convex outer surface configured to engage a patient's natural acetabulum, (ii) a concave inner surface positioned opposite the outer surface and defining a cavity in the hemispherical component, (iii) a plurality of cutting teeth extending outwardly from the outer surface, and (iv) a plurality of apertures defined in the inner surface, wherein each aperture of the plurality of apertures is rectangular-shaped and extends through the inner surface and the outer surface, and
a driver component removably coupled to the hemispherical component, the driver component comprising a shank and a plurality of ribs secured to, and extending radially outwardly from, the shank, wherein each rib has an outer end that is spaced apart and separated from every other rib, and each rib includes a tab that is received in a corresponding aperture of the hemispherical component to secure the driver component to the hemispherical component.

US Pat. No. 9,937,048

FEMORAL STEM INCLUDING AN ANCHOR TO FACILITATE ASSEMBLY AND IMPLANTATION

DEPUY IRELAND UNLIMITED C...

1. A system for hip orthopaedic surgery, the system comprising:a femoral head component,
an elongated stem component comprising: (i) a proximal body, (ii) a neck extending superiorly and medially from the proximal body, the neck having a longitudinal axis and being configured to receive the femoral head component, (iii) a tapered stem extending inferiorly from the proximal body, (iv) a first opening defined in an anterior surface of the neck, (v) a second opening defined in a posterior surface of the neck, and (vi) an anchor positioned on the neck and extending orthogonal to the longitudinal axis of the neck, the anchor having a first inner wall extending inwardly from the first opening and a second inner wall extending inwardly from the second opening, and each of the first and second inner walls includes a planar medial surface that extends orthogonal to the longitudinal axis of the neck and a curved surface connected to the planar medial surface, and
a surgical instrument including (i) a plate configured to engage the femoral head component, (ii) an arm configured to engage the anchor to secure the surgical instrument to the elongated stem component, the arm including a planar surface shaped to engage at least one of the planar medial surfaces of the elongated stem component, and (iii) an actuator configured to move the plate along an axis to apply a force to the femoral head component to advance the femoral head component onto the neck.

US Pat. No. 10,179,051

ORTHOPAEDIC KNEE PROSTHESIS HAVING CONTROLLED CONDYLAR CURVATURE

DEPUY IRELAND UNLIMITED C...

1. An orthopaedic knee prosthesis comprising:a femoral component having a condyle surface curved in the sagittal plane; and
a tibial bearing having a bearing surface configured to articulate with the condyle surface of the femoral component,
wherein the condyle surface (i) contacts the bearing surface at a first contact point on the condyle surface at a first degree of flexion less than about 30 degrees, (ii) contacts the bearing surface at a second contact point on the condyle surface at a second degree of flexion greater than about 45 degrees, and (iii) contacts the bearing surface at a third contact point on the condyle surface at a third degree of flexion greater than the second degree of flexion,
wherein the condyle surface in the sagittal plane has a first radius of curvature at the first contact point, a second radius curvature at the second contact point, and a third radius of curvature at the third contact point, the third radius of curvature being greater than the second radius of curvature by at least 0.5 millimeters,
wherein the condyle surface in the sagittal plane between the first contact point and the second contact point includes a plurality of curved surface sections, and wherein each succeeding curved surface section of the plurality of curved surface section has a radius of curvature less than a radius of curvature of an anteriorly-adjacent preceding curved surface section between the first contact point and the second contact point of the condyle surface.

US Pat. No. 10,194,924

GRATER AND TRIAL LINER

DEPUY IRELAND UNLIMITED C...

1. An instrument for preparing an acetabulum, the instrument comprising:a handle having a reamer coupling feature;
an acetabular reamer having an outer cutting surface and an inner concave surface having an apex, the acetabular reamer having a first handle coupling feature located at the apex adapted to couple to the reamer coupling feature of the handle; and
a bone chip clearer, the bone chip clearer having a convex outer surface with an apex, the convex outer surface adapted to engage the concave inner surface of the reamer, and the apex of the bone chip clearer having a recess adapted to receive the reamer coupling feature of the handle.

US Pat. No. 10,188,405

DEVICE FOR USE IN ORTHOPAEDIC SURGERY

DEPUY IRELAND UNLIMITED C...

1. A device for use in orthopaedic surgery, the device comprising:a metallic central member; and
an outer portion comprising a polymer, wherein the outer portion surrounds the metallic central member and has a profiled outer surface for removing bone;
wherein the metallic central member comprises one or more engagement features for resisting movement of the metallic central member relative to the outer portion during impaction of the device and wherein at least one of the engagement features comprises an aperture passing through the metallic central member.

US Pat. No. 9,987,056

SURGICAL INSTRUMENTS

DePuy Ireland Unlimited C...

1. A kit of parts for inserting a deformable implant into a cavity in a bone of a patient, the kit of parts comprising:an inserter instrument comprising a body having a cavity extending along a longitudinal axis of the body from a distal end to a proximal end and including an attachment mechanism at the distal end to which a deformable implant can be releasably attached,
a drive mechanism at the proximal end of the body, and an insertion stop mounted on the body and arranged to control the depth of insertion of the inserter instrument into a guide tube;
a push rod slidably arranged within the cavity and having a distal end engageable with a part of the deformable implant and a proximal end abutable by the drive mechanism, wherein the drive mechanism is operable to drive the push rod toward the distal end of the body; and
an impactor dimensioned for slidable engagement within the cavity;wherein the stop comprises:a member extending from the push rod; and
a channel in an inner wall of the body having an end wall, and wherein the member is arranged to slide within the channel and to abut against the end wall.

US Pat. No. 10,201,430

RELEASABLE THREADED CONNECTION FOR MODULAR IMPLANTS

DEPUY IRELAND UNLIMITED C...

1. A method for joint line assembly of an orthopaedic modular knee prosthesis assembly, the method comprising:aligning a first prosthetic component with a second prosthetic component,
wherein the first prosthetic component includes (i) a first end, (ii) an elongated body extending from the first end, (iii) a second end opposite the first end, and (iv) a threaded bore defined in the first end,
wherein the second prosthetic component includes (i) a bone-engaging surface, (ii) a first opening, and (iii) a mounting post extending from the bone-engaging surface along a longitudinal axis, the mounting post including a second opening defined in a free end and an inner wall that extends inwardly from the second opening to the first opening to define a first passageway that extends from the first opening and a second passageway in the mounting post that extends from the second opening, and
wherein (a) the inner wall of the mounting post includes a rim surface at an intersection of the first passageway and the second passageway, (b) the first passageway extends between the first opening and the rim surface and the second passageway extends between the rim surface and the second opening, (c) the inner wall includes a plurality of internal threads in the second passageway, and (d) the second passageway has a diameter larger than a diameter of the first passageway,
aligning a fastener with the threaded bore of the first prosthetic component, the fastener having an elongated shaft including (i) a first axial section having a first plurality of threads sized to engage with the threaded bore of the first prosthetic component, and (ii) a second axial section positioned opposite the first axial section, the second axial section having a second plurality of threads sized to engage with the plurality of internal threads of the second prosthetic component,
threading the first axial section of the fastener into the threaded bore defined in the first end of the first prosthetic component by rotating the fastener in a first direction to couple the fastener to the first prosthetic component, and
threading the second axial section of the fastener into the second passageway in the mounting post of the second prosthetic component when the fastener is secured to the first prosthetic component by rotating the first prosthetic component in a second direction to secure the first prosthetic component to the second prosthetic component, the second direction being different from the first direction,
wherein the second axial section of the fastener has a diameter larger than a diameter of the first axial section of the fastener and larger than the diameter of the first passageway, such that the first passageway is sized to prevent the second axial section of the fastener from passing beyond the rim surface and into the first passageway when the second axial section of the fastener is threaded into the second passageway, and
wherein the first prosthetic component is a stem component.

US Pat. No. 10,195,056

METHOD FOR PREPARING A PATIENT'S TIBIA TO RECEIVE AN IMPLANT

DEPUY IRELAND UNLIMITED C...

1. A method of trialing prosthetic components of a knee prosthesis, the method comprising:positioning a tibial base trial component on a surgically-prepared proximal end of a patient's tibia,
positioning a femoral trial component on a surgically-prepared distal end of a patient's femur,
inserting an insert component into an opening defined in the tibial base trial component,
advancing a first fixation pin into a posterior fixation pinhole defined in the tibial base trial component,
positioning a tibial bearing trial component over the insert component, between the tibial base trial component and the femoral trial component,
moving the patient's tibia between extension and flexion with the femoral trial component engaged with the tibial bearing trial component such that the tibial base trial component rotates on the proximal end of the patient's tibia about the first fixation pin, and
advancing a second fixation pin into an anterior fixation pinhole of the tibial base trial component to prevent rotation of the tibial base trial component.

US Pat. No. 10,182,827

SURGICAL INSTRUMENT

DEPUY IRELAND UNLIMITED C...

1. A cutting block for fixing relative to a bone for guiding a saw blade during a step in an orthopedic surgical procedure in which the bone is cut, the cutting block comprising:a. a body having a wall and a top surface for guiding a saw blade,
b. a top plate which is connected to the body and which can move between a first position in which the top plate is spaced apart from the body and a second position in which the top surface of the top plate is contiguous with and an extension of the top surface of the body,
in which the top plate has first and second resiliently deformable arms extending from it, spaced apart along the top plate, in which each of the first and second arms has a pin extending transversely from it, and in which the body has first and second recesses formed in it extending substantially perpendicularly to the top surface of the body, in which the first and second arms on the top plate can be received so that the arms and the recesses define the path for movement of the top plate relative to the body between the first and second positions,
in which each of the recesses has a profiled surface provided by a curved continuous groove in the wall of the body, and against which the respective deformable arm acts during movement of the top plate relative to the body between the first and second positions so as to cause the arm to deform, the deformation of each of the arms being greater when the top plate is in an intermediate position between the first and second positions than when it is in each of the first and second positions, so that the top plate is biased away from the intermediate position towards the first and second positions;
in which each pin is received in one groove when the top plate is in the first position, second position and intermediate position;
and in which each pin slides within one of the grooves as the top plate is moved between first position and second position;
and in which each of the grooves is curved when viewed in a direction that is defined by the pine that slides in the groove.

US Pat. No. 10,182,829

SURGICAL INSTRUMENT AND SYSTEM OF SURGICAL INSTRUMENTS

DEPUY IRELAND UNLIMITED C...

1. A cutting guide assembly for guiding a saw blade of a cutting tool, the saw blade being configured for oscillation in a plane of oscillation, and around an axis of oscillation, the guide assembly comprising:a mounting block having a guide surface;
a mounting arm having a first end and a second end;
a first post, having a longitudinal axis, extending from the first end of the mounting arm in a direction perpendicular to the mounting arm and configured to be retained in the mounting block in a direction perpendicular to the guide surface;
a second post extending parallel to the first post at the second end; and
a cutting tool attachment component for attaching the cutting tool to the cutting guide assembly, the cutting tool attachment component having a first surface against which the saw blade can be retained for oscillation around the axis of oscillation, and a shaft, having a longitudinal axis, extending in a direction away from, and perpendicular to, the first surface and configured to cooperate with the second post such that the longitudinal axis of the shaft is collinear with the axis of oscillation of the saw blade, and such that, when the saw blade is retained against the first surface, the plane of oscillation is parallel to, and displaced from, the guide surface of the mounting block.

US Pat. No. 10,271,857

SURGICAL INSTRUMENT

1. A spiked head assembly for attachment to a tibial jig for use during an orthopaedic surgical procedure, the spiked head assembly comprising:(a) a body which comprises an elongate member having a central longitudinal axis, a first end and a second end, superior and inferior surfaces, and at least one securing spike provided on the inferior surface towards the second end of the elongate member and configured to engage with a bone mass; and at least one arm extending from the elongate member in a direction perpendicular to the inferior surface; and
(b) a mount on the at least one arm which is configured to attach the assembly to the tibial jig,
in which:
the arm has an end and an inner surface;
the mount is secured to the end of the arm at a position spaced from the inferior surface of the elongate member;
the at least one arm is spaced apart from a plane that includes the central longitudinal axis and extends substantially perpendicularly to the inferior surface, such that the at least one arm, the mount and the inferior surface define an access space for the surgical procedure; and
the access space extends across the plane from the inferior surface to the mount and from the inner surface of the arm and continues across the plane.

US Pat. No. 10,265,183

TIBIAL TRIAL SYSTEM FOR A KNEE PROSTHESIS AND METHOD

DEPUY IRELAND UNLIMITED C...

1. A surgical instrument for use to surgically prepare a proximal end of a patient's tibia during a surgical procedure to implant an orthopaedic knee prosthesis, the surgical instrument comprising:a keel punch comprising (i) a base plate, (ii) a central post extending upwardly from a superior surface of the base plate, wherein a superior surface of the central post has a ramp surface defined therein, the ramp surface inclines superiorly in a anterior-to-posterior direction, and (iii) a pair of serrated wings extending inferiorly from an inferior surface of the base plate.

US Pat. No. 10,265,180

ORTHOPAEDIC KNEE PROSTHESIS HAVING CONTROLLED CONDYLAR CURVATURE

DEPUY IRELAND UNLIMITED C...

1. An orthopaedic knee prosthesis comprising:a femoral component including a condyle surface that is curved in the sagittal plane; and
a tibial bearing including a bearing surface configured to articulate with the condyle surface of the femoral component,
wherein the condyle surface of the femoral component (i) contacts the bearing surface at a first contact point on the condyle surface at a first degree of flexion, the first degree of flexion being less than about 30 degrees, (ii) contacts the bearing surface at a second contact point on the condyle surface at a second degree of flexion, the second degree of flexion being in the range of 35 degrees to 90 degrees, (iii) contacts the bearing surface at a third contact point on the condyle surface at a third degree of flexion, the third degree of flexion being greater than the second degree of flexion, and (iv) contacts the bearing surface at a plurality of contact points between the first contact point and the second contact point when the femoral component is moved from the first degree of flexion to the second degree of flexion,
wherein each contact point of the plurality of contact points is defined by a ray extending from a common origin to the respective contact point of the plurality of contact points, each ray having a length defined by the following polynomial equation:
r?=(a+(b*?)+(c*?2)+(d*?3)),
wherein r? is the length of the ray defining a contact point at ? degrees of flexion, a is a coefficient value between 20 and 50, and b is a coefficient value in a range selected from the group consisting of: ?0.30 wherein when b is in the range of ?0.30 wherein when b is in the range of 0 wherein when b is equal to 0, (i) c is a coefficient value in a range selected from the group consisting of: ?0.0020

US Pat. No. 10,271,862

SURGICAL INSTRUMENTS AND METHODS OF SURGICALLY PREPARING A PATIENT'S TIBIA

DEPUY IRELAND UNLIMITED C...

1. A surgical instrument system for surgically preparing a proximal end of a tibia, the system comprising:a surgical reamer including a proximal end, a distal end positioned opposite the proximal end, a plurality of cutting teeth formed at the distal end,
a housing including an opening sized to receive the proximal end of the surgical reamer and a pair of rails extending transverse to the opening,
a mounting frame configured to slide along the pair of rails, the mounting frame including a pair of openings sized to receive the pair of rails of the housing and a flange positioned below the pair of openings,
a cutting block including a channel sized to receive the flange to secure the cutting block to the mounting frame, the cutting block further including a cutting guide sized to receive a cutting tool to resect the proximal end of the tibia to create a surgically-prepared surface, and
a tibial base trial configured to be positioned on the surgically-prepared surface, the tibial base trial including a slot sized to receive a keel punch.

US Pat. No. 10,299,801

DISTAL FEMORAL JIG ASSEMBLY

DEPUY IRELAND UNLIMITED C...

1. A distal femoral jig assembly used with a cutting apparatus for resecting a distal face of a femur prior to implanting a femoral component of a total knee prosthesis, the cutting apparatus comprising:(i) a rod adapted for inserting into an intramedullary canal of the femur, and
(ii) a distal femoral cutting block configured for guiding resection of the distal face of the femur,
in which the distal femoral jig assembly is capable of positioning the distal femoral cutting block on either a left leg or a right leg and comprises a distal femoral jig and a distal femoral jig outrigger having at least one vertical leg, the distal femoral jig comprising:
(a) a positioning block having a distal end face which is adapted for abutting against the distal face of the femur, and at least one vertical through hole extending through it from an upper surface to an opposite lower surface thereof, the through hole being configured to receive the vertical leg on the outrigger, and
(b) a guiding bar which is formed integrally with the positioning block and extends proximally from the positioning block, the guiding bar extending along a longitudinal axis of the jig which extends perpendicular to the distal end face of the positioning block,
in which first and second passages extend through the guiding bar and the positioning block, in a convergent manner in a direction towards the patient's femur when the jig is in use, the first and second passages each being configured for slidingly receiving the rod with respective first and second preset valgus angles, and
in which the distal end face of the positioning block can abut against on the distal face of the femur of either the left leg or the right leg dependent on two flip orientations in which, in a first flip orientation the rod can be inserted in a selected one of the first and second passages having an appropriate preset valgus angle for one of the left and right legs, and in a second flip orientation after the distal femoral jig being flipped over approximately 180° about a jig longitudinal axis the rod can be inserted in a selected one of the first and second passages having the appropriate preset valgus angle for the other one of the left and right legs.

US Pat. No. 10,206,792

ORTHOPAEDIC SURGICAL SYSTEM FOR DETERMINING JOINT FORCES OF A PATIENTS KNEE JOINT

DEPUY IRELAND UNLIMITED C...

1. An orthopaedic surgical system for determining a joint force of a patient's joint, the orthopaedic surgical system comprising:a sensor module comprising a tibial paddle shaped to be positioned between a proximal end of a patient's tibia and a distal end of a patient's femur, an elongated handle secured to the tibial paddle, and a sensor array positioned in the tibial paddle and configured to generate sensor signals indicative of a joint force between the patient's tibia and femur, the tibial paddle including an inner sidewall defining a centrally-located aperture, and
a surgical instrument attachable and detachable from the tibial paddle of the sensor module, the surgical instrument including a plurality of lower retainer clips receivable in the centrally-located aperture to attach the surgical instrument to the tibial paddle.

US Pat. No. 10,441,294

SYSTEM FOR THE TREATMENT OF A PLANNED VOLUME OF A BODY PART

DePuy Ireland Unlimited C...

1. A surgical system comprising:(i) a handheld device comprising:
a base configured to be held in a user's hand,
an end-effector for mounting a surgical tool or a tool guide for guiding the surgical tool, said surgical tool being configured to treat a planned volume of a part of a patient's body,
an actuation unit connected to said base and said end-effector for moving said surgical tool or tool guide with respect to the base in order to treat said planned volume,
a support unit connected to the base or to the end-effector, comprising at least one element configured to make contact with the part to be treated or a region of the patient's body adjacent to the part to be treated so as to provide a partial mechanical link between the base or the end-effector and the part to be treated, the support unit configured so that reaction forces exerted on the partial mechanical link by the part to be treated or the region of the patient's body adjacent to the part to be treated are directed towards a proximal end of the handheld device;
(ii) a tracking unit configured to determine in real time a measured pose of at least one of the tool, the end-effector and the base with respect to the part to be treated;
(iii) a control unit configured to:
(a) compute in real time an optimized path of the tool or of the end-effector with respect to the base depending on said measured pose as determined by the tracking unit,
(b) detect whether said optimized path of the tool or of the end-effector can be achieved without changing the pose of the base, and, if this is not the case, determine a possible repositioning of the base with respect to the part to be treated,
(c) configure the actuation unit so as to move the end-effector according to said computed path, and
(d) iterate steps (a) to (c) until the planned volume has been treated; and
(iv) a user interface configured to indicate feedback information from the control unit to the user.

US Pat. No. 10,390,965

SYSTEM FOR PREPARING A PATIENT'S FEMUR IN AN ORTHOPAEDIC JOINT REPLACEMENT PROCEDURE

DePuy Ireland Unlimited C...

1. An orthopaedic surgical system comprising:a tibial base plate sized to be positioned on a proximal surface of a patient's tibia, and
an insert trial component configured to be attached to the tibial base plate, the insert trial component including a pair of proximal curved concave surfaces,
a femoral trial component configured to be coupled to a distal end of a patient's femur, the femoral trial component comprising an anterior flange, and a pair of curved arms extending away from the anterior flange, each arm including a curved condyle surface and a plurality of cutting guide slots, and
a femoral trial insert component including a central body sized to be positioned between the pair of curved arms and a pair of mounting flanges extending outwardly from the central body, each mounting flange including a distal surface and a fastener retained in each mounting flange to secure the mounting flange to the femoral trial component,
wherein the femoral trial component includes a pair of slots in the curved arms sized to receive the mounting flanges of the femoral trial insert component,
wherein the distal surfaces and the curved condyle surfaces are configured to engage and articulate on the proximal curved concave surfaces of the insert trial component when the femoral trial insert component is secured to the femoral trial component, and
wherein each fastener includes an elongated threaded shaft sized to engage a threaded bore defined in one of the mounting flanges of the femoral trial insert component, a head connected to the elongated threaded shaft, a socket defined in the head, and an annular flange extending radially outward from the head to engage the mounting flange of the femoral trial insert component.

US Pat. No. 10,405,991

INSTRUMENT FOR POSITIONING A CUP COMPONENT OF AN ORTHOPAEDIC JOINT PROSTHESIS

DEPUY IRELAND UNLIMITED C...

1. An instrument for positioning a hollow cup component of an orthopaedic joint prosthesis, comprising:a support member having a plurality of jaw members unitarily formed around a periphery of the support member, each of the jaw members having a cup engaging limb which extends from the support member in a first direction to be received in a recess on an external side wall of the cup component, wherein each jaw member is pivotable between an engaged position in which the cup engaging limbs are displaced inwardly and a disengaged position in which the cup engaging limbs are displaced outwardly allowing the cup component to be removed from between the jaw members, and
an actuator operable to adopt an engaged configuration in which the actuator acts on all the jaw members to urge them into the engaged position or a disengaged configuration in which the actuator does not act on any of the jaw members to urge them into the engaged position and all the jaw members can adopt the disengaged position.

US Pat. No. 10,368,996

ASSEMBLY TOOL

DEPUY IRELAND UNLIMITED C...

1. An instrument for assembling an implant on a neck of a stem, the stem having a stem axis, the implant and neck each having a taper, such that the implant and neck are coupled via the implant and neck tapers, such that when the tapers are coupled, there is a taper axis, the instrument comprising:a frame having a distal portion, a middle portion having a body axis that is coaxial with the stem axis when being used with the implant and neck, and a proximal portion, the distal portion of the frame including a retaining member adapted to engage a portion of the neck and a connector adapted to engage a corresponding feature of the stem;
a force applier retained in the proximal portion of the frame, having, when being used with the implant and neck, an axis that is coaxial with the taper axis, wherein the force applier is adapted to engage the implant, wherein the force applier axis is not coaxial or parallel with the stem axis;
wherein as the force applier is activated, the force applier applies a force on the implant while the neck is held in place by the frame, thereby causing the tapers of the implant and neck to engage;
wherein the middle portion includes a carriage that is adjustably positionable on the body axis in a first direction, the carriage slidably retaining the proximal portion such that the proximal portion is movable in a second direction that is perpendicular to the first direction.

US Pat. No. 10,383,734

ROTATABLE COLLAR FOR A PROSTHESIS

DEPUY IRELAND UNLIMITED C...

1. A surgical method comprising:resecting a proximal end of a bone;
coupling a distal portion of a prosthesis to the resected proximal end of the bone, the prosthesis further comprising a proximal neck portion extending from the proximal end of the bone;
positioning a collar over the neck portion, wherein the collar comprises a plate including a neck hole to receive the neck portion and a plurality of attachment portions;
coupling at least one of the plurality of attachment portions to soft tissues;
rotating the collar about the neck portion to adjust a tension in the soft tissues;
applying an impaction force to the collar to lock the collar to the neck portion to prevent further rotation; and
coupling an articulation component to the neck portion.

US Pat. No. 10,322,003

MODULAR TAPER SEAL AND METHOD FOR ORTHOPAEDIC PROSTHETIC HIP ASSEMBLY

DEPUY IRELAND UNLIMITED C...

1. A method of assembling an orthopaedic prosthetic hip assembly, the method comprising:positioning a compressible seal in an annular slot of a femoral head component, the femoral head component being configured to engage a surgically-prepared acetabulum or a prosthetic acetabular cup,
aligning a tapered trunnion of a femoral stem component with a distal opening of the femoral head component,
advancing the tapered trunnion of the femoral stem component into the distal opening through a distal section of an inner bore of the femoral head component and into a tapered section of the inner bore that is defined by an inner surface of the femoral head component,
engaging the tapered trunnion of the femoral stem component with the inner surface of the femoral head component to secure the femoral stem component to the femoral head component, and
engaging a flange of the femoral stem component with the compressible seal,
wherein the distal section of the inner bore includes the annular slot.

US Pat. No. 10,307,198

INSTRUMENTS AND METHOD FOR USE IN DISASSEMBLING IMPLANTS

DePuy Ireland Unlimited C...

1. A method for disassembling a femoral component assembly, the method comprising:securing an end of a main component to a femoral component,
advancing a rod in a first direction through the main component and into contact with a stem component secured to the femoral component and positioned in a bone of a patient,
threading a spindle component into the main component to apply a force in the first direction to the rod,
continuing to thread the spindle component into the main component to increase the force applied in the first direction to disengage the femoral component from the stem component,
wherein securing the end of the main component to the femoral component comprises threading an elongated body of the main component into a threaded passageway defined in the femoral component.

US Pat. No. 10,390,966

SYSTEM INCLUDING FEMORAL AUGMENT TRIALS AND METHOD OF PERFORMING AN ORTHOPAEDIC JOINT REPLACEMENT PROCEDURE

DePuy Ireland Unlimited C...

14. An orthopaedic surgical system comprising:a femoral trial component configured to be coupled to a surgically-prepared distal end of a patient's femur, the femoral trial component comprising an anterior flange, and a pair of curved arms extending away from the anterior flange,
a plurality of augment trial components, each augment trial component including a peg and a magnet, and
wherein each curved arm includes an aperture defined in a bone-facing surface that is sized to receive the peg of one of the plurality of augment trial components,
wherein each augment trial component has a different thickness, and
the curved arms of the femoral trial component include a plurality of cutting slots, each cutting slot being spaced apart from the bone-facing surface by a distance equal to the thickness of one of the augment trial components.

US Pat. No. 10,363,147

SYSTEM AND METHOD FOR PREPARING A PATIENT'S FEMUR IN AN ORTHOPAEDIC JOINT REPLACEMENT PROCEDURE

DePuy Ireland Unlimited C...

1. An orthopaedic surgical system comprising:a femoral trial component configured to be coupled to a surgically-prepared distal end of a patient's femur, the femoral trial component comprising an anterior flange, a pair of curved arms extending away from the anterior flange, a posterior flange extending between the pair of curved arms, and a central passageway defined between the anterior flange, the curved arms, and the posterior flange, each arm including a curved condyle surface, a distal bone-facing surface, a plurality of anterior cutting guide slots, and a plurality of distal cutting guide slots,
a femoral trial insert component configured to be secured to the femoral trial component, the femoral trial insert component including a main body sized to be positioned in the central passageway of the femoral trial component between the pair of curved arms,
a plurality of augment trial components, each augment trial component being sized to be positioned on the distal bone-facing surface, and
a cutting block that is configured to be releasably coupled to an anterior surface of the anterior flange of the femoral trial component, the cutting block comprising a cutting guide surface,
wherein when the cutting block is coupled to the anterior flange of the femoral trial component, the cutting guide surface is positioned coplanar with a distal surface of the anterior flange of the femoral trial component and the posterior flange of the femoral trial component is aligned with the cutting guide surface of the cutting block to prevent further posterior movement of a cutting saw blade,
wherein the main body of the femoral trial insert component includes (i) an anterior flange having a curved surface that is shaped to match a patella surface of a prosthetic femoral component, (ii) a pair of arms spaced apart from one another and extending parallel to one another away from the anterior flange of the main body, and (iii) a pair of mounting flanges each extending outwardly from each of the pair of arms in opposite directions,
wherein each of the curved arms of the femoral trial component includes an aperture defined in the curved arm that opens into the central passageway of the femoral trial component, each aperture being sized and shaped to receive one of the pair of mounting flanges of the femoral trial insert component to secure the femoral trial component to the femoral trial insert component,
wherein the cutting block includes a locking mechanism operable to secure the cutting block to the femoral trial component,
wherein:
the anterior flange of the femoral trial component includes a slot, and
the locking mechanism including (i) a moveable locking tab extending outwardly from a body of the cutting block that is sized to be received in the slot, the locking tab being moveable between a first position in which the locking tab is configured to engage the anterior flange of the femoral trial component to secure the cutting block to the femoral trial component and a second position in which the locking tab is configured to be spaced apart from the anterior flange of the femoral trial component, and (ii) a biasing element to bias the locking tab in the first position.

US Pat. No. 10,307,260

TIBIAL TRAY WITH FIXATION FEATURES

DEPUY IRELAND UNLIMITED C...

1. An orthopaedic prosthetic component, comprising:a plate including a distal surface, a distal-facing opening defined in the distal surface, a proximal surface configured to receive an insert component, and a curved outer wall extending between the distal surface and the proximal surface, and
an elongated stem extending from the distal surface of the plate to a distal tip,
wherein the plate further includes an intermediate wall positioned between the proximal surface and the distal surface, and an inner wall that extends inwardly from the distal-facing opening to the intermediate wall to define a distal pocket,
wherein the plate further includes a plurality of inner pockets in the intermediate wall, each inner pocket being defined by a base wall that is positioned proximal of the intermediate wall and a rim wall that extends between an opening in the intermediate wall and the base wall, and each inner pocket including an annular channel positioned between the intermediate wall and the base wall,
wherein the distal surface and the intermediate wall have a surface roughness (Ra) in a range of 3.5 microns to 6.5 microns,
wherein each rim wall includes a convex distal surface and a concave proximal surface that cooperate to define the annular channel,
wherein each inner pocket includes a narrowest opening extending parallel to the base wall of the inner pocket that is defined by the convex distal surface of the rim wall, and the narrowest opening of the inner pocket has a surface area that is less than the surface area of the base wall of the inner pocket,
wherein an imaginary line on the convex distal surface defines a peripheral edge of the narrowest opening of each inner pocket, the peripheral edge having a peripheral edge length and defaming a surface area of the narrowest opening of the inner pocket, the plate has a total peripheral edge length that is equal to the sum of the peripheral edge lengths of the plurality of inner pockets, and the plate has a total opening surface area that is equal to the sum of the surface areas of the narrowest openings of the plurality of inner pockets, and
wherein a ratio of the total peripheral edge length to the total opening surface area is in a range of 0.31 to 0.46.

US Pat. No. 10,478,262

ORTHOPAEDIC INSTRUMENT SYSTEM INCLUDING AN INSTRUMENT CADDY AND METHOD FOR ASSEMBLING A SURGICAL INSTRUMENT

DePuy Ireland Unlimited C...

11. An orthopaedic instrument system, comprising:an instrument caddy configured to receive a cutting broach, the caddy comprising a bottom wall, a first side wall extending upwardly from the bottom wall, and a second side wall spaced apart from the first side wall and extending upwardly from the bottom wall to define a storage chamber,
wherein the first side wall includes an opening and a pair of surfaces extending inwardly from the opening to define a groove sized to receive a base of the cutting broach,
wherein a slot aligned with the groove extends through the second side wall, the slot being sized to receive a tip of the cutting broach.

US Pat. No. 10,335,163

POLYMER 4-IN-2 FEMORAL CUTTING INSTRUMENT HAVING SEPARABLE A/P AND CHAMFER CUTTING BLOCKS

DEPUY IRELAND UNLIMITED C...

1. An orthopaedic surgical instrument comprising:an A/P femoral cutting block having (i) an anterior cutting surface, (ii) a posterior cutting surface, (iii) a chamfer access window positioned between the anterior cutting surface and the posterior cutting surface, and (iv) an interference-fit connector comprising a male connector having an elongated boss that extends to a distal end, the elongated boss having a bore formed therethrough and a number of crush ribs at its distal end, and
a chamfer femoral cutting block having (i) a wedge-shaped chamfer cutting surface positioned in the chamfer access window, (ii) a bone-engaging surface positioned opposite the wedge-shaped chamfer cutting surface, and (iii) a female interference-fit connector comprising a smooth inner sidewall that defines an elongated bore extending through the posterior surface,
wherein a distal end of the elongated boss of the interference-fit connector of the A/P femoral cutting block is received into the elongated bore of the female connector of the chamfer femoral cutting block so as to removably secure the chamfer femoral cutting block to the A/P femoral cutting block, and
wherein the elongated boss of the male connector of the A/P femoral cutting block is removeably positioned within the elongated bore of the female interference-fit connector of the chamfer femoral cutting block to (i) engage the crush ribs with the smooth inner sidewall of the female interference-fit connector of the chamfer femoral cutting block within the elongated bore to removably secure the chamfer femoral cutting block to the A/P femoral cutting block and (ii) align the bore of the elongated boss of the male connector of the A/P femoral cutting block with the elongated bore of the female interference-fit connector of the chamfer femoral cutting block to define a pin guide bore extending through the A/P femoral cutting block and the bone-engaging of the chamfer femoral cutting block.

US Pat. No. 10,603,094

SYSTEM AND METHOD FOR ATTACHING A SURGICAL INSTRUMENT TO A PATIENT'S BONE

DePuy Ireland Unlimited C...

1. A surgical instrument system, comprising:a bone fixation pin including a head and a shaft extending from the head to a distal end having a plurality of threads defined therein, and
a surgical instrument configured for use with the bone fixation pin, the surgical instrument comprising:
an elongated shaft defining a longitudinal axis extending through its proximal end and its distal end, a socket defined in the distal end of the elongated shaft, the socket being sized to receive the head of the bone fixation pin, and a shank extending outwardly from the proximal end of the elongated shaft along the longitudinal axis, the shank being configured to engage a surgical drill to rotate the elongated shaft about the longitudinal axis,
a sheath extending over the distal end of the elongated shaft, and
a locking mechanism coupled to the elongated shaft,
wherein the elongated shaft and the shank are configured to move along the longitudinal axis relative to the sheath, and the locking mechanism is operable to permit selectively movement of the elongated shaft and the shank along the longitudinal axis relative to the sheath,
wherein the locking mechanism includes a body that is positioned in a slot extending diametrically through the elongated shaft and a locking tab that extends outwardly from the body and is moveable between a locked position in which the locking tab is positioned in an opening of the sheath to prevent movement of the elongated shaft within the sheath and an unlocked position in which the locking tab is spaced apart from the opening while being coupled to the elongated shaft to permit movement of the elongated shaft within the sheath,
wherein: (i) the sheath includes a distal opening defined in its distal end and a central passageway that extends inwardly from the distal opening, (ii) the elongated shaft is positioned in the central passageway of the sheath, and (iii) when the elongated shaft is moved in a first direction relative to the sheath, the distal end of the elongated shaft is moved along the central passageway toward the distal end of the sheath,
wherein (i) the head of the bone fixation pin extends from a proximal end of the bone fixation pin to a distal edge, the threads of the shaft extend from the distal end to a proximal edge, and a first distance is defined between the distal edge of the head and the proximal edge of the threads, and (ii) when the elongated shaft is located in a first position relative to the sheath, a second distance is defined between the distal opening of the sheath and the distal end of the elongated shaft, the second distance being greater than the first distance such that a number of the threads of the bone fixation pin are positioned in the central passageway of the sheath when the head of the bone fixation pin is fully seated in the socket of the elongated shaft,
wherein the elongated shaft is moveable to a second position in which a third distance is defined between the opening of the sheath and the distal end of the elongated shaft, the third distance being less than the first distance, and
wherein (i) the locking mechanism is biased in the locked position in which the elongated shaft is prevented from moving relative to the sheath when the elongated shaft is in the first position, and (ii) when the locking mechanism is in the unlocked position, the elongated shaft is permitted to move relative to the sheath to move the elongated shaft between the first position and the second position;
wherein the body includes a biasing element that biases the locking tab radially outward in the opening in the locked position and allows the body to be radially compressed in the slot for the tab to disengage and be spaced apart from the opening in the unlocked position.

US Pat. No. 10,543,097

METHOD AND SURGICAL INSTRUMENT SYSTEM WITH MULTIPLE LENGTHS OF BROACHES SHARING A COMMON GEOMETRY

DePuy Ireland Unlimited C...

1. A method of performing an orthopaedic surgical procedure on a distal end of a patient's femur, comprising:selecting a femoral prosthetic component,
selecting a first sleeve component for use with the femoral prosthetic component, the first sleeve component including a tapered body that has a first outer geometry,
inserting a first broach into the distal end of the patient's femur to engage a plurality of cutting teeth with the patient's femur, the plurality of cutting teeth being defined in a tapered outer surface of the first broach and defining a first outer geometry corresponding to the first outer geometry of the first sleeve component,
defining a cavity in the distal end of the patient's femur with the first broach,
determining a joint line of the femoral prosthetic component,
selecting a second sleeve component based on the determination of the joint line, the second sleeve component including a first tapered body having the first outer geometry and a second tapered body having a second outer geometry different from the first outer geometry, and
inserting the second sleeve component into the cavity defined by the first broach.

US Pat. No. 10,543,003

ORTHOPAEDIC SURGICAL INSTRUMENT ASSEMBLY AND METHOD OF MANUFACTURING SAME

DePuy Ireland Unlimited C...

1. An orthopaedic surgical instrument comprising:a hemispherical component including (i) a convex outer surface extending from a circular rim to an apex point, (ii) a plurality of cutting teeth extending outwardly from the outer surface between the circular rim and the apex point, (iii) a concave inner surface positioned opposite the convex outer surface, and (iv) a plurality of apertures extending through the inner surface and the convex outer surface, and
a driver component removably coupled to the hemispherical component, the driver component comprising a shank and a plurality of ribs secured to, and extending radially outwardly from, the shank, wherein each rib has an outer end that is spaced apart and separated from every other rib, and each rib includes a curved outer surface that is configured to engage the concave inner surface of the hemispherical component and a tab extending from the curved outer surface, the tab being received in a corresponding aperture of the hemispherical component to secure the driver component to the hemispherical component,
wherein the curved outer surface of each rib extends from an apex of the driver component positioned below the shank to the outer end of the rib,
wherein the circular rim defines a base imaginary plane and each cutting tooth of the plurality of cutting teeth is positioned on one of a plurality of tooth imaginary planes, each tooth imaginary plane extending orthogonal to the base imaginary plane and through the apex point,
wherein each cutting tooth of the plurality of cutting teeth includes a first sidewall extending outwardly from the outer surface, a second sidewall extending outwardly from the outer surface, and an outer wall connecting the first sidewall and the second sidewall, and
wherein an oblong slot is defined below each cutting tooth between the first sidewall, the second sidewall, and the outer wall of each cutting tooth, the oblong slot having a longitudinal axis positioned on the arced imaginary line.

US Pat. No. 10,485,530

ORTHOPEDIC SURGICAL INSTRUMENT FOR KNEE SURGERY

DePuy Ireland Unlimited C...

1. An orthopedic surgical instrument system comprising:an elongated body having a first end and a second end, the elongated body defining a longitudinal axis and having a handle at the first end;
a first output shaft extending out from a first side of the elongated body along a first output axis substantially perpendicular to the longitudinal axis of the elongated body;
a second output shaft extending out from the first side of the elongated body along a second output axis substantially perpendicular to the longitudinal axis of the elongated body;
a user control coupled to the elongated body near the first end of the elongated body, and
a joint distractor having a tibial platform, a first paddle and a second paddle,
wherein the first output shaft and the second output shaft are situated near the second end of the elongated body, and the first output shaft and the second output shaft are configured to turn independent of one another in response to operation of the user control, and
wherein the first output shaft is configured to move the first paddle relative to the tibial platform and the second output shaft is configured to move the second paddle relative to the tibial platform.

US Pat. No. 10,470,899

METHOD FOR PREPARING A PATIENT'S TIBIA IN AN ORTHOPAEDIC JOINT REPLACEMENT PROCEDURE

DePuy Ireland Unlimited C...

1. A method of preparing a patient's tibia for a tibial prosthetic component, the method comprising:inserting a surgical reamer into a cavity formed in a proximal end of a patient's tibia,
coupling an attachment device to an elongated shaft of the reamer such that the elongated shaft extends through a bore of a locking knob and a bore of a housing of the attachment device,
rotating the locking knob about the elongated shaft such that a section of the housing compresses and engages the elongated shaft of the reamer,
coupling a mounting frame to a rail extending from a fixed end at the housing at an orthogonal angle with respect to the longitudinal axis to a free end,
coupling a cutting block to the mounting frame,
advancing a saw blade through a cutting guide formed in the cutting block to cut the proximal end of the patient's tibia,
removing the attachment device, the mounting frame, and the cutting block from the patient's tibia,
positioning a tibial base plate on the proximal end of the patient's tibia, and
determining an offset orientation of a tibial prosthetic component based on the orientation of the tibial plate relative to the proximal end of the patient's tibia.

US Pat. No. 10,363,148

METHOD FOR PREPARING A PATIENT'S FEMUR IN AN ORTHOPAEDIC JOINT REPLACEMENT PROCEDURE

DePuy Ireland Unlimited C...

1. A method of performing an orthopaedic surgical procedure, the method comprising:attaching a first femoral trial insert component to a femoral trial component via a pair of fasteners retained on the first femoral trial insert component, wherein the femoral trial component is configured to be coupled to a surgically-prepared distal end of a patient's femur and comprises (i) an anterior flange, (ii) a pair of curved arms extending away from the anterior flange, (iii) a posterior flange extending between the pair of curved arms, and (iv) a central passageway defined between the anterior flange, the curved arms, and the posterior flange, each curved arm of the femoral trial component including a curved condyle surface, a bone-facing surface, and a plurality of cutting guide slots, and wherein the first femoral trial insert component includes a main body sized to be positioned in the central passageway of the femoral trial component between the pair of curved arms of the femoral trial component,
positioning the first femoral trial insert component and the femoral trial component on a distal end of a patient's femur,
engaging curved surfaces of the femoral trial component and the first femoral trial insert component with a pair of concave curved surfaces of a tibial insert trial component over a range of flexion from extension to flexion,
selecting a cutting guide slot, from the plurality of cutting guide slots, that is positioned a distance from the bone-facing surface of the femoral trial component, the distance being equal to a thickness of an augment trial,
advancing a cutting saw blade through the cutting guide slot defined in the femoral trial component to remove a portion of the patient's femur,
attaching the augment trial to the femoral trial component by advancing a mounting post of the augment trial into a slot extending inwardly from an outer edge of the femoral trial component to position a body of the augment trial between the bone-facing surface of the femoral trial component and the patient's femur,
detaching the first femoral trial insert component from the femoral trial component,
coupling a cutting block to the anterior flange of the femoral trial component, the cutting block comprising a cutting guide surface that is positioned coplanar with a distal surface of the anterior flange of the femoral trial component,
advancing a saw blade along the cutting guide of the cutting block and the distal surface of the ante rior flange into contact with a patient's femurto cut the patient's femur,
attaching a second femoral trial insert component to the femoral trial component, and
engaging surfaces of the femoral trial component and the second femoral trial insert component with a pair of concave curved surfaces of a tibial insert trial component over a range of flexion from extension to flexion,
wherein the main body of the first femoral trial insert component includes (i) an anterior flange having a curved surface that is shaped to match a patella surface of a prosthetic femoral component, (ii) a pair of arms spaced apart from one another and extending parallel to one another away from the anterior flange of the main body, and (iii) a pair of mounting flanges each extending outwardly from each of the pair of arms in opposite directions,
wherein attaching the first femoral trial insert component includes advancing the pair of mounting flanges of the first femoral trial insert component into complementary-shaped openings defined in the pair of curved arms of the femoral trial component.

US Pat. No. 10,470,898

ORTHOPAEDIC INSTRUMENT SYSTEM FOR SURGICALLY-PREPARING A PATIENT'S TIBIA

DePuy Ireland Unlimited C...

1. An orthopaedic surgical instrument system comprising:a surgical reamer including an elongated shaft and a plurality of cutting flutes defined at a distal end of the elongated shaft,
an attachment base comprising:
a housing including a main body, an elongated bore that is sized to receive the elongated shaft of the reamer and extends along a longitudinal axis of the main body, and a rail extending from a fixed end on the main body orthogonal to the longitudinal axis to a free end, and
a locking knob secured to the housing and having a longitudinal bore aligned with the elongated bore of the housing that is sized to receive the elongated shaft of the reamer, the locking knob being rotatable between a first position in which the attachment base is permitted to slide along the elongated shaft of the surgical reamer and a second position in which the attachment base is locked into position on the elongated shaft of the surgical reamer,
a mounting frame positioned on the rail, the mounting frame being configured to slide relative to the housing along the rail, and
a cutting block removably coupled to the mounting frame,
wherein the locking knob is operable to advance a section of the housing into engagement with the reamer when rotated to the second position, wherein the section of the housing is fixedly attached to the main body of the housing.

US Pat. No. 10,413,307

FEMORAL ORTHOPAEDIC INSTRUMENT ASSEMBLY FOR SETTING OFFSET

DEPUY IRELAND UNLIMITED C...

1. An orthopaedic surgical instrument system comprising:a femoral cutting block including a plurality of cutting guides sized to receive and guide a cutting saw blade to resect portions of a distal end of a patient's femur, each cutting guide of the plurality of cutting guides extending parallel to the other cutting guides of the plurality of cutting guides through a curved outer surface,
an offset adaptor assembly comprising:
(i) a mounting bracket configured to be coupled to the femoral cutting block,
(ii) an intermediate body pivotally coupled to the mounting bracket and having a first longitudinal axis, and
(iii) a proximal body pivotally coupled to the intermediate body and having a second longitudinal axis that is spaced apart from the first longitudinal axis,
a stem stabilizer coupled to the proximal body and extending along the second longitudinal axis, and
a stem trial coupled to the stem stabilizer, the stem trial including an elongated body that extends along the second longitudinal axis to a proximal tip,
wherein the mounting bracket has a distal-most surface that defines a plane, and an oblique angle is defined between the first longitudinal axis and the plane.

US Pat. No. 10,543,098

ORTHOPAEDIC FEMORAL COMPONENT HAVING CONTROLLED CONDYLAR CURVATURE

DePuy Ireland Unlimited C...

1. An orthopaedic knee prosthesis comprising:a femoral component having a condyle surface curved in a sagittal plane;
wherein the condyle surface is configured to (i) contact a bearing surface of a tibial component at a first contact point on the condyle surface at a first degree of flexion greater than 0 degrees, (ii) contact the bearing surface of the tibial component at a second contact point on the condyle surface at a second degree of flexion, the second degree of flexion greater than the first degree of flexion, and (iii) contact the bearing surface of the tibial component at a third contact point at a third degree of flexion that is greater than the second degree of flexion, and
wherein (i) the condyle surface in the sagittal plane has a first radius of curvature at the first contact point, a second radius of curvature at the second contact point, and a third radius of curvature at the third contact point, (ii) the second radius of curvature is greater than the first radius of curvature, (iii) the third radius of curvature is less than the second radius of curvature, and (iv) the third radius of curvature is greater than the first radius of curvature such that a curved surface section having a non-constant radius of curvature is defined between the first contact point and the third contact point.

US Pat. No. 10,492,799

SYSTEM FOR PREPARING A PATIENT'S TIBIA IN AN ORTHOPAEDIC JOINT REPLACEMENT PROCEDURE

DePuy Ireland Unlimited C...

1. An orthopaedic surgical instrument system comprising:a first surgical reamer including an elongated shaft and a plurality of cutting flutes defined at a distal end of the elongated shaft,
a tibial base plate including a central opening extending along a first longitudinal axis and a pair of fixation bores,
an offset guide including an upper drum, a lower plate sized to be positioned in the central opening of the tibial base plate, and a bore extending through the offset guide along a second longitudinal axis that is offset from the first longitudinal axis of the tibial base plate when the offset guide is positioned on the tibial base plate, the bore being sized to receive the elongated shaft of the surgical reamer, and
a reamer guide body having a passageway defined therein that is configured to be substantially aligned with the central opening of the tibial base plate when the reamer guide body is positioned on the tibial base plate, and a pair of fixation pins, each of the fixation pins extending downwardly from a bottom surface of the guide body and sized to be received in and extend outwardly from each of the fixation bores of the tibial base plate when the guide body is positioned on the tibial base plate,
wherein the offset guide is operable to rotate such that the lower plate of the offset guide engages the tibial base plate to rotate the tibial base plate about the second longitudinal axis.

US Pat. No. 10,433,964

PROSTHESIS WITH SURFACES HAVING DIFFERENT TEXTURES AND METHOD OF MAKING THE PROSTHESIS

DEPUY IRELAND UNLIMITED C...

1. A method of making a tibial implant component comprising a bearing and a tibial tray, the tibial tray having a solid metal portion and a porous metal portion that is coupled to the solid metal portion and having a void space, the solid metal portion including a proximal surface to receive the bearing and a distal surface positioned opposite the proximal surface, and the porous metal portion including a proximal portion along the distal surface of the solid metal portion, an exposed distal bone-engaging surface, and an exposed peripheral surface extending around at least a portion of the periphery of the tibial tray,wherein:
the exposed peripheral surface is generally perpendicular to and extends from the level of the exposed distal bone-engaging surface of the porous metal portion toward the solid metal portion;
the exposed peripheral surface has a static coefficient of friction; and
the exposed distal bone-engaging surface has a higher static coefficient of friction than the exposed peripheral surface;
the method includes treating the exposed peripheral surface to reduce its static coefficient of friction.

US Pat. No. 10,537,445

SURGICAL INSTRUMENTS FOR PREPARING A PATIENT'S TIBIA TO RECEIVE AN IMPLANT

DePuy Ireland Unlimited C...

1. An orthopaedic surgical instrument system for use during a surgical procedure to implant an orthopaedic knee prosthesis, comprising:a tibial base trial component including (i) a superior surface, (ii) an inferior surface positioned opposite the superior surface that is adapted to be positioned on a surgically-prepared proximal end of a patient's tibia, (iii) an opening being defined by an inner wall extending inwardly from the superior surface to a shelf surface positioned between the superior surface and the inferior surface and surrounding a passageway extending through the tibial base trial component, and (iv) a number of fixation pinholes extending through a posterior section of the shelf surface and the inferior surface of the tibial base trial component,
an insert component shaped to be received in the opening defined in the tibial base trial component, the insert component comprising a base plate, and a generally Y-shaped posterior buttress extending upwardly from a superior surface of the base plate, and
a tibial bearing trial component having an inner sidewall that defines an opening therein,
wherein the generally Y-shaped posterior buttress of the insert component is configured to be received in the opening of the tibial bearing trial component to prevent rotation of the tibial bearing trial component relative to the tibial base trial component.

US Pat. No. 10,500,055

ANTERIOR STABILIZED KNEE IMPLANT

DePuy Ireland Unlimited C...

1. A total knee implant prosthesis comprising:a femoral component including a pair of condyles, an arcuate bridge connecting the pair of condyles, an opening defined between the arcuate bridge and the pair of condyles, and an anterior cam spaced apart from the arcuate bridge, the anterior cam extending between the pair of condyles adjacent to the opening, and
a tibial component including a first condyle depression, a second condyle depression, and a post positioned between the first condyle depression and the second condyle depression, the post having an anterior surface,
wherein the anterior cam and the post are sized, shaped, and positioned so that the anterior cam and the anterior surface of the post are engaged when the knee is fully extended and the anterior cam and the anterior surface of the post are disengaged during at least part of flexion of the knee, and wherein an open gap is defined between the anterior cam and the arcuate bridge.

US Pat. No. 10,543,001

METHOD AND INSTRUMENTS FOR ASSEMBLING A FEMORAL ORTHOPAEDIC PROSTHESIS

DePuy Ireland Unlimited C...

1. A method of assembling an orthopaedic prosthesis, the method comprising:aligning a femoral trial construct with a surgical instrument that includes a mounting platform and a stabilizer arm, the femoral trial construct comprising a post that defines a first axis and an offset adaptor trial that defines a second axis that is offset from the first axis,
positioning the femoral trial construct on the mounting platform,
rotating the mounting platform to position the first axis and the second axis in a plane extending vertically through the stabilizer arm,
advancing the stabilizer arm along the vertically-extending plane to engage the stabilizer arm with the femoral trial construct,
locking the mounting platform to prevent rotation relative to the stabilizer arm,
positioning a femoral prosthetic component on the mounting platform after removing the femoral trial construct such that a third axis defined by a proximal post of the femoral prosthetic component is positioned in the plane,
positioning a femoral offset adaptor on the proximal post, the femoral offset adaptor including a proximal end that defines a fourth axis that is offset from the third axis,
rotating the proximal end of the femoral offset adaptor to position the fourth axis in the vertically-extending plane, and
securing the femoral offset adaptor to the femoral prosthetic component with the third axis and the fourth axis positioned in the plane.

US Pat. No. 10,537,439

ORTHOPAEDIC INSTRUMENT SYSTEM FOR SURGICALLY-PREPARING A PATIENT'S FEMUR

DePuy Ireland Unlimited C...

1. An orthopedic surgical instrument system comprising:a femoral cutting block including a plurality of cutting guide slots,
an offset guide comprising:
a mounting bracket configured to be coupled to the femoral cutting block, the mounting bracket having a distal surface and an opening defined in the distal surface,
an adaptor body positioned in the opening defined in the mounting bracket, the adaptor body extending along a first longitudinal axis and including a head plate that is pivotally coupled to the mounting bracket, and
an elongated shaft pivotally coupled to the adaptor body, the elongated shaft extending along a second longitudinal axis spaced apart from the first longitudinal axis,
an intramedullary orthopedic surgical instrument configured to be coupled to the elongated shaft and sized to be inserted into a medullary canal of a patient's femur, and
a surgical handle including a locking flange that is pivotable between a locked position and an unlocked position,
wherein the head plate of the offset guide includes an annular rim sized to receive the locking flange to secure the surgical handle to the offset guide.

US Pat. No. 10,500,065

ORTHOPAEDIC SURGICAL INSTRUMENT EXTRACTION SYSTEM AND METHOD

DePuy Ireland Unlimited C...

1. A surgical instrument extraction system comprising:a first extraction tool having a first body that extends between a first end and a second end, the first extraction tool having (i) a first plurality of threads formed on the first end and sized and shaped to selectively couple to a threaded end of a stem component of a femoral trial system and a stem component of a tibial trial system, (ii) a second plurality of threads formed on the second end and sized and shaped to selectively couple to a stem stabilizer of a femoral intramedullary adaptor, and (iii) a first bore extending through the body between a first side of the first body and a second side of the first body, and
a second extraction tool having a second body that extends between a first end having a first diameter and a second end having a second diameter greater than the first diameter, the second extraction tool having (i) a first plurality of threads formed on the first end and sized and shaped to selectively couple to an intermediate trial component of a tibial trial system, (ii) a second plurality of threads formed on the second end and sized and shaped to selectively couple to an intermediate trial component of a femoral trial system, and (iii) a second bore extending through the second body between a first side of the second body and a second side of the second body,
wherein the first body of the first extraction tool is sized to extend through the second bore of the second extraction tool to couple the first extraction tool to the second extraction tool to provide leverage to the second extraction tool to aid in extraction, and
wherein the second body of the second extraction tool is sized to extend through the first bore of the first extraction tool to couple the second extraction tool to the first extraction tool to provide leverage to the first extraction tool to aid in extraction.

US Pat. No. 10,537,341

ORTHOPAEDIC SYSTEM AND METHOD FOR ASSEMBLING PROSTHETIC COMPONENTS

DePuy Ireland Unlimited C...

1. A surgical instrument system, comprising:a base including a mounting platform,
a first carrier including a mounting block configured to be selectively positioned on the mounting platform and a post extending at a non-orthogonal angle relative to the mounting block, the post including a distal end that is sized to be received in a passageway of a prosthetic femoral component, wherein the first carrier further includes a pair of walls connected to the post and extending outwardly from the mounting block, the walls being sized to be received in the intercondylar notch of the prosthetic femoral component, and
a second carrier configured to be selectively positioned on the mounting platform in place of the first carrier, the second carrier including a first clamp plate and a second clamp plate that are moveable to grip a prosthetic tibial component between the first clamp plate and the second clamp plate.

US Pat. No. 10,583,011

METHOD AND SYSTEM INCLUDING SLEEVES AND BROACHES FOR SURGICALLY PREPARING THE PATIENT'S BONE

DePuy Ireland Unlimited C...

1. An orthopaedic knee system, comprising:a prosthetic knee component configured to be implanted into an end of a long bone that forms a knee joint of a patient, the prosthetic knee component including a stem,
a first monolithic sleeve component configured to be secured to the stem of the prosthetic knee component, the first monolithic sleeve component including a first plurality of steps that define an axial length L, each step of the first plurality of steps having a maximum medial-lateral dimension, a maximum anterior-posterior dimension, and an axial step height, and
a second monolithic sleeve component configured to be secured to the stem of the prosthetic knee component in place of the first monolithic sleeve component, the second monolithic sleeve component including a second plurality of steps that define an axial length L+X, each step of the second plurality of steps having a maximum medial-lateral dimension, a maximum anterior-posterior dimension, and an axial step height,
wherein the first monolithic sleeve component has an outer three-dimensional geometry over the axial length L that is identical to an outer three-dimensional geometry over the axial length L of the second monolithic sleeve component such that the maximum medial-lateral dimensions, the maximum anterior-posterior dimensions, and the axial step heights of the first plurality of steps over the axial length L of the first monolithic sleeve component are equal to the corresponding maximum medial-lateral dimensions, maximum anterior-posterior dimensions, and axial step heights of the second plurality of steps over the axial length L of the second monolithic sleeve component, and
wherein at least one of the maximum medial-lateral dimension and the maximum anterior-posterior dimension of any step of the second plurality of steps over the axial length X of the second monolithic sleeve component is greater than the maximum medial-lateral dimension, the maximum anterior-posterior dimension, and the axial step height of any step of the second plurality of steps over the axial length L of the second monolithic sleeve component.

US Pat. No. 10,575,861

ORTHOPAEDIC SURGICAL INSTRUMENT SYSTEM AND METHOD INCLUDING A STEM TRIAL COMPONENT

DePuy Ireland Unlimited C...

1. An orthopaedic surgical instrument system, comprising:a surgical reamer including a shaft that extends to a distal end, a plurality of cutting flutes formed on the shaft, and a threaded aperture that is defined in the distal end of the shaft, and
a stem trial component, comprising:
an outer sleeve including a proximal end, a distal end, and a passageway extending from an opening defined in the proximal end to an opening defined in the distal end, and
a central rod including an elongated body positioned in the passageway of the outer sleeve, a threaded end positioned adjacent to the proximal end of the outer sleeve, a distal tip positioned adjacent to the distal end of the outer sleeve, and an annular shoulder wall defined between the elongated body and the distal tip that engages a rim wall surrounding the opening defined in the distal end of the outer sleeve,
wherein the threaded end of the central rod is configured to be received in the threaded aperture of the surgical reamer to couple the stem trial component to the surgical reamer.

US Pat. No. 10,568,644

FEMORAL SYSTEM HANDLE SURGICAL INSTRUMENT AND METHOD OF ASSEMBLING SAME

DePuy Ireland Unlimited C...

1. An orthopaedic surgical assembly comprising:a broach including (i) a tapered outer surface having a plurality of cutting teeth defined therein, (ii) a distal surface having a central aperture defined therein, and (iii) a flange positioned adjacent to the central aperture, and
a handle including (i) a guide pin received in the central aperture of the broach, (ii) an elongated body extending distally from the guide pin, (iii) a first lever extending outwardly from the elongated body, the first lever including a proximal end that is pivotally coupled to the elongated body, (iv) a second lever extending outwardly from the elongated body, the second lever having a distal end that is pivotally coupled to the elongated body, and (v) a leaf spring connecting the first lever to the second lever such that movement of the first lever causes movement of the second lever,
wherein (i) the second lever includes a catch engaged with the flange of the broach, and (ii) the leaf spring applies a clamping force to the second lever,
wherein the first lever is moveable between (i) a clamped position in which the catch is engaged with the flange of the broach and (ii) an unclamped position in which the catch is spaced apart from the flange of the broach, and
wherein at least one of the first lever or second lever of the handle includes a slot having an opening with a first width, and the leaf spring includes a tip with a tip portion that is received in the slot, the tip portion having a second width, wherein the second width is greater than the first width.

US Pat. No. 10,537,440

METHOD OF USING AN ORTHOPAEDIC INSTRUMENT SYSTEM IN SURGICALLY-PREPARING A PATIENT'S FEMUR

DePuy Ireland Unlimited C...

1. A method of performing an orthopaedic surgical procedure, the method comprising:aligning a distal end of an intramedullary orthopaedic surgical instrument with a proximal end of an offset guide,
positioning a connector at the proximal end of the offset guide in an opening defined in the distal end of the intramedullary orthopaedic surgical instrument to prevent relative rotational movement between the proximal end of the offset guide and the intramedullary orthopaedic surgical instrument thereby advancing the intramedullary orthopaedic surgical instrument over the connector,
engaging a sleeve with the intramedullary orthopaedic surgical instrument to secure the intramedullary orthopaedic surgical instrument to the offset guide,
inserting the intramedullary orthopaedic surgical instrument into an opening defined in a distal end of a patient's femur,
rotating a distal end of the offset guide about a longitudinal axis extending through the intramedullary orthopaedic surgical instrument to determine an offset orientation for a prosthetic femoral component,
securing the distal end of the offset guide to a femoral cutting block including a plurality of cutting slots, wherein rotating the distal end of the offset guide includes rotating the femoral cutting block relative to a distal surface of the patient's femur, and
attaching an offset indicator to the distal end of the offset guide, wherein rotating the distal end of the offset guide includes rotating the offset indicator about a second longitudinal axis extending parallel to, and spaced apart from, the longitudinal axis extending through the intramedullary orthopaedic surgical instrument.

US Pat. No. 10,729,551

ORTHOPAEDIC KNEE PROSTHESIS HAVING CONTROLLED CONDYLAR CURVATURE

DePuy Ireland Unlimited C...

1. An orthopaedic knee prosthesis comprising:a femoral component having a condyle surface curved in the sagittal plane; and
a tibial bearing having a bearing surface configured to articulate with the condyle surface of the femoral component,
wherein the condyle surface (i) contacts the bearing surface at a first contact point on the condyle surface at a first degree of flexion less than about 30 degrees, (ii) contacts the bearing surface at a second contact point on the condyle surface at a second degree of flexion greater than about 45 degrees, and (iii) contacts the bearing surface at a third contact point on the condyle surface at a third degree of flexion greater than the second degree of flexion,
wherein the condyle surface in the sagittal plane has a first radius of curvature at the first contact point, a second radius curvature at the second contact point, and a third radius of curvature at the third contact point, the third radius of curvature being different from the second radius of curvature and,
wherein the condyle surface in the sagittal plane between the first contact point and the second contact point includes a plurality of curved surface sections, and wherein each succeeding curved surface section of the plurality of curved surface section has a radius of curvature less than a radius of curvature of an anteriorly-adjacent preceding curved surface section between the first contact point and the second contact point of the condyle surface.

US Pat. No. 10,702,288

ATTACHMENT MECHANISM FOR A SURGICAL INSTRUMENT COMPONENT

DEPUY IRELAND UNLIMITED C...

1. A surgical instrument comprising:a first component;
a second component; and
an attachment mechanism, the attachment mechanism for detachably coupling the first component to the second component, the attachment mechanism being provided on the first component and including first and second attachment members configured to releasably engage with a respective attachment element on the second component to detachably couple the first and second components, the attachment mechanism including a pair of actuating levers pivotably mounted on a fulcrum and moveable between a first position wherein the first and second attachment members are engaged with the attachment element to couple the first and second components together and a second position wherein the first and second attachment members are disengaged from the attachment element to thereby release the second component from engagement with the first component, and wherein portions of each of the first and second levers are embedded in a sleeve comprising a resiliently deformable material which allows the first and second levers to be pivotable between the first position and the second position and which provides a restoring force to the first and second levers to bias the first and second levers to the first position.

US Pat. No. 10,537,446

METHOD AND INSTRUMENTS FOR ASSEMBLING AN ORTHOPAEDIC PROSTHESIS

DePuy Ireland Unlimited C...

1. A method of assembling an orthopaedic prosthesis, the method comprising:aligning a tibial trial construct with a surgical instrument that includes a mounting platform and a stabilizer arm, the tibial trial construct comprising a base trial that defines a first axis and an offset adaptor trial that defines a second axis that is offset from the first axis,
positioning the tibial trial construct on the mounting platform,
rotating the mounting platform to position the first axis and the second axis in a plane extending vertically through the stabilizer arm,
advancing the stabilizer arm along the vertically-extending plane to engage the stabilizer arm with the tibial trial construct,
locking the mounting platform to prevent rotation relative to the stabilizer arm,
positioning a tibial prosthetic component on the mounting platform after removing the tibial trial construct such that a third axis defined by a distal post of the tibial prosthetic component is positioned in the plane,
positioning a tibial offset adaptor on the distal post, the tibial offset adaptor including a distal end that defines a fourth axis that is offset from the third axis,
rotating the distal end of the tibial offset adaptor to position the fourth axis in the vertically-extending plane, and
securing the tibial offset adaptor to the tibial prosthetic component with the third axis and the fourth axis positioned in the plane.

US Pat. No. 10,695,076

GUIDED OSTEOTOME

DEPUY IRELAND UNLIMITED C...

1. An osteotome for preparing a proximal end of a femur of a patient for installation of a stem of a femoral component of a prosthetic hip during hip replacement surgery, the osteotome comprising:a body having
a proximal end connectable to a handle, and
a distal end having a cutting edge, wherein the distal end includes an aperture extending proximally into the body of the osteotome, and the aperture being bordered by the cutting edge, and
a curved guide member extending in a distal direction from the distal end of the body in which the curved guide member further includes cutting elements.

US Pat. No. 10,596,011

ORTHOPAEDIC SURGICAL INSTRUMENT AND METHOD FOR POSITIONING AN ACETABULAR PROSTHETIC COMPONENT

DePuy Ireland Unlimited C...

1. An orthopaedic surgical instrument, comprising:a first impactor head having a convex curved impaction surface configured to engage a concave curved surface of an acetabular cup prosthesis,
a second impactor head having a concave curved impaction surface configured to engage a convex curved surface of a femoral head prosthesis, and
a suction cup configured to be selectively coupled to the first impactor head and the second impactor head, the suction cup including a distal opening that is defined by an outer rim positioned proximal of the impaction surface of the first impactor head or the second impactor head when one of the impactor heads is coupled to the suction cup,
wherein the suction cup is configured to engage both the concave curved surface of the acetabular cup prosthesis and the convex curved surface of the femoral head prosthesis so as to selectively couple the first impactor head to the to the acetabular cup prosthesis and the second impactor head to the femoral head prosthesis.

US Pat. No. 10,512,472

SURGICAL CUTTING INSTRUMENTS

DEPUY IRELAND UNLIMITED C...

1. A surgical cutting instrument comprising:an instrument body having a shaft extending along a longitudinal axis from a proximal end to a distal end and a first attachment mechanism coupled to the shaft, wherein the first attachment mechanism includes an enlarged circular end member having a plurality of pegs projecting radially outward therefrom and coupled to the distal end of the shaft, the first attachment mechanism further includes a lock having an annular hollow body with a plurality of legs projecting radially outward and distally therefrom, wherein the hollow annular body is coaxially and slidably coupled to the shaft; and
a hemispherical cutter having a circular central core, a plurality of cutting formations and a plurality of outer lobes having a first radius convex lobes extending from a longitudinal axis of the central core and a plurality of inner concave lobes having a second radius from the longitudinal axis of the central core that is less than the first radius, wherein each of the outer lobes has a convex outer surface and a concave inner surface, and each of the inner lobes has a concave outer surface and a convex inner surface, the circular central core having side walls which define a continuous opening and the side walls including a second attachment mechanism configured to interact with the first attachment mechanism to releasably attach the cutter to the distal end of the instrument body and wherein the outer and inner surfaces of the plurality of outer and inner lobes are outer and inner surfaces of the side walls and wherein at least one cutting formation of the plurality of cutting formations is provided on an end outer face of the side walls of the cutter opposite the continuous opening; wherein the second attachment mechanism includes a plurality of slots extending through the plurality of inner concave lobes, each of the plurality of slots adapted to engage one of the plurality of pegs such that when the instrument body is inserted into the continuous opening of the cutter, the circular end member fits within the second radius and engages the inner surfaces of the plurality of the inner concave lobes and each of the pegs extend through a corresponding one of the slots, and the lock slides distally along the shaft to a locked configuration, such that each of the plurality of legs engages a corresponding one of the outer surfaces of one of the plurality of inner concave lobes and fits in an outer recess formed between adjacent two of the plurality of outer lobes, and such that each of the pegs engages a notch defined in a corresponding one of the plurality of legs to rotationally lock the instrument body with the hemispherical cutter.

US Pat. No. 10,695,193

DEVICE AND METHOD FOR INSERTING A LINER INTO AN ACETABULAR CUP

DEPUY IRELAND UNLIMITED C...

1. A device for inserting a liner into an acetabular cup, the device comprising:a first portion configured to engage the liner and a rim of the acetabular cup to align a pole of the liner and a pole of the cup along an axis of the device prior to insertion of the liner into the cup; and
a second portion for pushing the liner into the cup, wherein the second portion comprises a guide arrangement for engaging a rim of the liner, and wherein the second portion is coupled to the first portion for movement of the second portion with respect to the first portion along said axis;
wherein the first portion comprises a plurality of arms for engaging the liner and the rim of the acetabular cup at spaced apart points around the liner and the rim of the cup;
wherein the guide arrangement comprises a plurality of guide members for engaging the rim of the liner at spaced apart points around the rim of the liner and wherein positions of the arms of the first portion and the guide members of the second portion are adjustable for varying a lateral distance of the arms and the guide members from said axis according to the size of the cup and the liner.

US Pat. No. 10,736,748

ORTHOPAEDIC PROSTHETIC SYSTEM FOR A HINGED-KNEE PROSTHESIS

DePuy Ireland Unlimited C...

1. An orthopaedic prosthesis, comprising:a femoral component configured to be coupled to a surgically-prepared distal end of a patient's femur, the femoral component including a pair of condyles spaced apart to define an intercondylar notch, each condyle including a convex curved condylar surface,
a tibial component including a tray configured to be coupled to a surgically-prepared proximal end of a patient's tibia and a platform pivotally coupled to the tray, the platform including a pair of concave curved surfaces corresponding to the convex curved condylar surfaces of the femoral component and a proximal opening positioned between the concave curved surfaces, and
a modular insert configured to be selectively coupled to the femoral component, the modular insert including a bracket sized to be positioned in the intercondylar notch of the femoral component, an elongated stem sized to be received in the opening defined in the platform of the tibial component, a hinge pin that pivotally couples the elongated stem to the bracket, and a fastener configured to secure the femoral component to the bracket of the modular insert,
wherein the fastener extends transverse to the hinge pin, and
wherein the platform is configured to pivot about a first axis extending in an inferior-superior direction and the elongated stem is configured to pivot about a second axis relative to the bracket and the femoral component, the second axis extending in a medial-lateral direction orthogonal to the first axis.

US Pat. No. 10,736,750

RELEASABLE THREADED CONNECTION FOR MODULAR IMPLANTS

DePuy Ireland Unlimited C...

1. A method for joint line assembly of an orthopaedic modular knee prosthesis assembly, the method comprising:aligning a first prosthetic component with a second prosthetic component,
wherein the first prosthetic component includes (i) a first end, (ii) a second end opposite the first end, (iii) an elongated body extending from the first end to the second end, and (iv) a threaded bore defined in the first end,
wherein the second prosthetic component includes (i) a bone-engaging surface, (ii) a first opening, and (iii) a mounting post extending from the bone-engaging surface along a longitudinal axis, the mounting post including a second opening defined in a free end and an inner wall that extends inwardly from the second opening to the first opening to define a first passageway that extends from the first opening and a second passageway in the mounting post that extends from the second opening, and
wherein (a) the inner wall of the mounting post includes a rim surface at an intersection of the first passageway and the second passageway, (b) the first passageway extends between the first opening and the rim surface and the second passageway extends between the rim surface and the second opening, (c) the inner wall includes a plurality of internal threads in the second passageway, and (d) the second passageway has a diameter larger than a diameter of the first passageway,
aligning a fastener with the first prosthetic component and the second prosthetic component, the fastener having an elongated shaft including (i) a first axial section having a first plurality of threads sized to engage with the threaded bore of the first prosthetic component, and (ii) a second axial section positioned opposite the first axial section, the second axial section having a second plurality of threads sized to engage with the plurality of internal threads of the second prosthetic component,
rotating the fastener in a first direction to simultaneously thread the first axial section and the second axial section into the threaded bore defined in the first end of the first prosthetic component and the second passageway in the mounting post of the second prosthetic component, respectively, so as to assemble the first prosthetic component with the second prosthetic component,
wherein the second axial section of the fastener has a diameter larger than the diameter of the first passageway, such that the first passageway is sized to prevent the second axial section of the fastener from passing beyond the rim surface and into the first passageway when the second axial section of the fastener is threaded into the second passageway, and
wherein the first prosthetic component is an elongated stem component.

US Pat. No. 10,863,996

ORTHOPEADIC SURGICAL INSTRUMENT

DePuy Ireland Unlimited C...

1. An orthopaedic surgical instrument, comprising:an intramedullary rod configured to be inserted into a medullary canal of a patient's bone,
a housing coupled to the intramedullary rod, the housing including a pair of arms spaced apart to define an elongated slot, each arm including a first longitudinal rib formed on a proximal surface and a second longitudinal rib formed on a distal surface positioned opposite the proximal surface,
a translation frame configured to slide along the pair of arms, the translation frame comprising:
a first body including a central section positioned in the elongated slot of the housing and a pair of first flanges extending outwardly from the central section, each first flange including a proximal surface that engages the first longitudinal rib of one of the pair of arms,
a second body coupled to the first body, the second body including a pair of second flanges, and each second flange includes a distal surface that engages the second longitudinal rib of one of the pair of arms to couple the first body and the second body to the housing, the second body also includes a base plate and an elongated shaft that extends outwardly from the base plate through the central section of the first body,
a fastener secured to the elongated shaft of the second body to couple the second body to the first body, and
a mounting bracket coupled to the first body and the second body, and
a cutting block coupled to the mounting bracket such that the cutting block is configured to slide with the translation frame, the cutting block including a cutting slot sized to receive a cutting tool to guide a resection of the patient's bone.

US Pat. No. 10,952,863

TIBIAL TRIAL SYSTEM FOR A KNEE PROSTHESIS AND METHOD

DEPUY IRELAND UNLIMITED C...

1. An orthopaedic surgical instrument system for use during a surgical procedure to implant an orthopaedic knee prosthesis, comprising:a tibial base trial component adapted to be positioned on a surgically-prepared proximal end of a patient's tibia, the tibial base trial component having an opening defined therein, and
an insert component shaped to be received in the opening defined in the tibial base trial component, the insert component having a base plate and a central post extending upwardly from a superior surface of the base plate, wherein a superior surface of the central post has a ramp surface defined therein, the ramp surface inclines superiorly in an anterior-to-posterior direction.

US Pat. No. 10,869,676

SYSTEM FOR USE IN KNEE SURGERY

DEPUY IRELAND UNLIMITED C...

1. A method of implanting a femoral component of a knee joint prosthesis on a femur of a patient,the femoral component having a bearing surface for articulation with a tibial bearing surface and an opposite bone facing surface, in which the bone facing surface has:
an anterior portion for engaging the femur on its anterior side,
a posterior portion for engaging the femur on its posterior side,
a distal portion for engaging a distal end face of the femur,
an anterior chamfer portion located between the anterior portion and the distal portion, which is inclined from the distal portion to the anterior portion, and
a posterior chamfer portion located between the posterior portion and the distal portion, which is inclined from the distal portion to the posterior portion;
wherein:
each of the distal, anterior and posterior portions of the bone facing surface has a porous structure to promote bone ingrowth and lacks a rail at any of their edges so that each portion is planar and can form close surface-to-surface contact with adjacent bone surfaces which are planar;
at least one of the chamfer portions of the bone facing surface of the femoral component has spaced apart medial and lateral rails with at least one recess between them, each rail having a top and the recess having a base spaced from the tops of the rails;
wherein the method includes:
resecting the femur to prepare surfaces that correspond to the anterior, distal, posterior, anterior chamfer and posterior chamfer surfaces of the femoral component; and
implanting the femoral component on the resected femur without the use of cement;
wherein when the femoral component is implanted on the resected femur there is close surface-to-surface contact between the porous structures of the anterior, distal and posterior portions of the bone facing surface of the femoral component and corresponding surfaces of the femur, the tops of the medial and lateral rails of at least one of the chamfer portions contact the corresponding surface of the patient's femur and there is no cement between the anterior, distal, posterior, anterior chamfer and posterior chamfer portions of the bone facing surface of the femoral component and the corresponding surfaces of the resected femur,
the rails are provided on the anterior chamfer portion, and
wherein there is clearance between the patient's femur and the base of the recess in the anterior chamfer portion when the femoral component is positioned on a patient's femur.

US Pat. No. 10,940,022

SIDE-SPECIFIC ORTHOPAEDIC SURGICAL INSTRUMENT SYSTEMS AND ASSOCIATED METHODS OF USE

DePuy Ireland Unlimited C...

1. A surgical instrument system, comprising:a plurality of orthopaedic surgical instruments including (i) a plurality of right-limb side-specific orthopaedic trial components, wherein each of the plurality of right-limb side-specific orthopaedic trial components has a size that is different from the size of at least some of the other of the plurality of right- limb side-specific orthopaedic trial components, and (ii) a plurality of left-limb side-specific orthopaedic trial components, wherein each of the plurality of left- limb side-specific orthopaedic trial components has a size that is different from the size of at least some of the other of the plurality of left-limb side-specific orthopaedic trial components,
a first instrument sterilization tray having a plurality of instrument retainers configured to retain the orthopaedic surgical instruments during sterilization and transport thereof, wherein the first instrument sterilization tray is devoid of any of the plurality of left-limb side-specific orthopaedic trial components when each of the plurality of instrument retainers has one of the plurality of orthopaedic surgical instruments retained thereto, and
a second instrument sterilization tray having a plurality of instrument retainers configured to retain the orthopaedic surgical instruments during sterilization and transport thereof, wherein the second instrument sterilization tray is devoid of any of the plurality of right-limb side-specific orthopaedic trial components when each of the plurality of instrument retainers has one of the plurality of orthopaedic surgical instruments retained thereto, wherein:
the plurality of right-limb side-specific orthopaedic trial components comprises a plurality of right-limb side-specific femoral trial components with each of the plurality of right-limb side-specific femoral trial components having a size that is different from the size of each of the other of the plurality of right-limb side-specific femoral trial components,
the plurality of left-limb side-specific orthopaedic trial components comprises a plurality of left-limb side-specific femoral trial components with each of the plurality of left-limb side-specific femoral trial components having a size that is different from the size of each of the other of the plurality of left-limb side-specific femoral trial components,
the first instrument sterilization tray is devoid of any of the plurality of left-limb side-specific femoral trial components when each of the plurality of instrument retainers has one of the plurality of orthopaedic surgical instruments retained thereto, and
the second instrument sterilization tray is devoid of any of the plurality of right-limb side-specific femoral trial components when each of the plurality of instrument retainers has one of the plurality of orthopaedic surgical instruments retained thereto.

US Pat. No. 11,033,396

ORTHOPAEDIC PROSTHETIC SYSTEM FOR A ROTATING HINGED-KNEE PROSTHESIS

DEPUY IRELAND UNLIMITED C...

1. An orthopaedic prosthesis system, comprising:a femoral component configured to be attached to a distal end of a patient's femur,
a tibial tray configured to be attached to a proximal end of a patient's tibia,
a tibial insert configured to be positioned between the femoral component and the tibial tray, the tibial insert including an inferiorly-extending tab that is configured to engage the tibial tray to limit rotation of the tibial insert relative to the tibial tray about a first axis extending in an inferior-superior direction,
an elongated pin extending along a second axis extending in a medial-lateral direction, the elongated pin rotatably coupling the tibial insert to the femoral component, wherein the femoral component is configured to rotate about the second axis relative to the tibial insert over a range of motion, and
an elongated stem extending from a first end connected to the elongated pin and a second end positioned in a cavity defined in the tibial insert, the elongated stem being configured to move along the first axis in an inferior-superior direction between an inferior position and a superior position when the femoral component is rotated about the second axis relative to the tibial insert over the range of motion.

US Pat. No. 10,980,579

IMPLANT INSERTER ASSEMBLY

DePuy Ireland Unlimited C...

1. An assembly for inserting a deformable cage implant into a first cavity in a spine of a patient, the assembly comprising:a) the deformable cage implant;
b) an inserter instrument comprising a body having a second cavity extending along a longitudinal axis of the body from a distal end to a proximal end and including an attachment mechanism at the distal end to which thea deformable implant is releasably attached, a drive mechanism at the proximal end of the body, and an insertion stop mounted on the body and arranged to control the depth of insertion of the inserter instrument into a guide tube;wherein the inserter instrument further comprises a hopper attached to an upper surface of the body and including a lower opening in communication with the second cavity,wherein the drive mechanism includes a pair of matching threads and a surface abutable against the proximal end of a push rod contained in the second cavity and caused to translate along the longitudinal axis by the threads.

US Pat. No. 10,952,874

METHOD FOR PREPARING A PATIENT'S TIBIA TO RECEIVE AN IMPLANT

DEPUY IRELAND UNLIMITED C...

1. A method of surgically preparing a patient's bone to receive a knee prosthesis, the method comprising:selecting a tibial bearing trial component,
selecting an insert component from a plurality of insert components, the plurality of insert components including a first insert component configured to permit the tibial bearing trial component to rotate relative to the insert component and a second insert component configured to prevent the tibial bearing trial component from rotating relative to the insert component,
positioning a tibial base trial component on a surgically-prepared proximal end of a patient's tibia,
advancing the tibial bearing trial component in a posterior direction to position the tibial bearing trial component over the selected insert component, and
advancing a first fixation pin into a posterior fixation pinhole defined in the tibial base trial component, when the selected insert component is the second insert component, and moving the patient's tibia between extension and flexion such that the tibial base trial component rotates on the proximal end of the patient's tibia about the first fixation pin.

US Pat. No. 10,952,745

DISTAL FEMORAL JIG ASSEMBLY

DEPUY IRELAND UNLIMITED C...

1. An orthopaedic surgical instrument system, the system comprising:a rod adapted for insertion into an intramedullary canal of a patient's femur,
a distal femoral cutting block configured for guiding resection of the distal face of the patient's femur, the distal femoral cutting block including a central opening defined in a distal surface,
an outrigger including (i) a beam, (ii) a pair of legs extending distally from the beam, (iii) a trunnion extending proximally from the beam, the trunnion being sized to be received in the central opening of the distal femoral cutting block, and (iv) a tip moveably coupled to the beam, the tip being configured to selectively engage the distal femoral cutting block to couple the distal femoral cutting block to the outrigger, and
a mounting block including (i) an end face adapted for abutting the distal face of the patient's femur in a first orientation and a second orientation that is approximately 180° opposite the first orientation, (ii) a first passageway and a second passageway, each passageway being sized to slidingly receive the rod, and (iii) a pair of through holes, each through hole being sized to receive one leg of the pair of legs of the outrigger,
wherein each leg of the pair of legs is configured to frictionally engage the mounting block within its corresponding through hole to prevent the outrigger from sliding off the mounting block,
wherein the first passageway is configured to place the rod at a first valgus angle and the second passageway is configured to place the rod at a second valgus angle, and
wherein when the end face is in the first orientation, the rod is configured to be inserted in a selected one of the first and second passageways having an appropriate valgus angle for one of a patient's left and right legs, and when the end face is in the second orientation, the rod is configured to be inserted in a selected one of the first and second passageways having the appropriate valgus angle for the other one of the patient's left and right legs.

US Pat. No. 10,945,777

SURGICAL INSTRUMENT AND METHOD FOR PERFORMING AN ORTHOPAEDIC SURGICAL PROCEDURE

DEPUY IRELAND UNLIMITED C...

1. An orthopaedic surgical instrument, comprising:a first component including a passageway that extends along a longitudinal axis, the first component having a housing through which the passageway extends and a support arm that extends posteriorly from a superior end of the housing to a posterior end, the support arm having a first channel including a first lateral opening,
a first plate removably coupled to the posterior end of the support arm of the first component, the first plate being shaped to be positioned on a proximal end of a patient's tibia,
a second component including a shaft positioned in the passageway of the first component and an arm extending posteriorly from a superior end of the shaft, the arm of the second component having a second channel that includes a second lateral opening that is aligned in an anterior-posterior direction with the first lateral opening of the first channel, and
a second plate pivotally coupled to a posterior end of the arm of the second component superior to the first plate, the second plate being configured to pivot about a pivot axis intersecting the longitudinal axis of the first component to tilt the second plate relative to the first plate,
wherein an inferior-superior distance is de fined between the second plate and the first plate, and the second component is operable to be moved along the longitudinal axis relative to the first component to change the inferior-superior distance.

US Pat. No. 10,898,347

SURGICAL INSTRUMENT AND METHOD OF USE

DePuy Ireland Unlimited C...

1. A method of using a surgical instrument during an orthopaedic arthroplasty procedure, the surgical instrument having a shaft and an impactor head with a spine extending outwardly therefrom, the method including the steps of:flexing a knee of a patient;
inserting a tibial implant component within a prepared tibia of the patient; and
positioning the impactor head of the surgical instrument in contact with the tibial implant component with the spine positioned to orient and prevent rotation of the surgical instrument with respect to the tibial implant component.

US Pat. No. 10,874,527

GUIDE FOR LOCATING A CUTTING BLOCK

DEPUY IRELAND UNLIMITED C...

1. A guide for locating a cutting block on a resected distal surface of a patient's femur in a knee replacement procedure, the guide comprising:a first body part for positioning over the resected distal surface of the femur, the first body part comprising a pair of posteriorly extending feet for engaging with the posterior condyles of the femur; and
a second body part for positioning over the resected distal surface of the femur, the second body part comprising at least one pair of locator holes for locating fastener pins by which the cutting block can be fastened to the resected distal face of the femur,
wherein the first body part is removably attachable to the second body part only in a plurality of discrete positions to selectively angle the second body part with respect to an anatomical feature of the patient when the feet of the first body part are engaged with the posterior condyles, and
wherein the guide further comprises a curved slot, a ridge, a plurality of grooves sized to receive the ridge at each position of the plurality of discrete positions, and an engagement member that extends anteriorly and is positioned between the grooves and the pair of posteriorly extending feet when viewed in a first plane, wherein each of the plurality of discrete positions is defined by one of the plurality of grooves, and the engagement member engages with the slot for removably attaching the first body part to the second body part, and wherein the engagement member is received at a respective position along the slot in each of said plurality of discrete positions when the first body part is attached to the second body part.

US Pat. No. 10,828,173

ORTHOPAEDIC SURGICAL INSTRUMENT SYSTEM AND METHOD FOR DETACHING TRIAL CONSTRUCT ASSEMBLIES

DEPUY IRELAND UNLIMITED C...

1. A surgical instrument system, comprising:a femoral prosthetic trial component including (i) a medial condyle spaced apart from a lateral condyle, (ii) an intercondylar notch positioned between the medial condyle and the lateral condyle, (iii) a post extending outwardly from a proximal bone facing surface of the femoral prosthetic trial component and including an annular groove, and (iv) a passageway that extends through the post and opens into the intercondylar notch, and
an orthoapedic surgical instrument configured to engage the femoral prosthetic trial component, the orthopaedic surgical instrument comprising:
an elongated body extending along a longitudinal axis and sized to be inserted into the passageway extending through the post, the elongated body including a distal tip including at least one flange extending radially outwardly therefrom configured to expand and contract relative to the longitudinal axis between an expanded position and a contracted position, wherein the elongated body includes a central shaft having an end that is segmented into a plurality of cantilevered arms that extend outwardly from the central shaft to define the distal tip of the elongated body, such that in the expanded position the at least one flange is received into the annular groove for securing the femoral prosthetic trial component to the orthopaedic surgical instrument, and in the contracted position the at least one flange disengages the annular groove for releasing the femoral prosthetic trial component from the orthopaedic surgical instrument,
a bore extending through the elongated body along the longitudinal axis,
a rod positioned within the bore and moveable along the longitudinal axis, the rod including a distal end configured to selectively engage the distal tip of the elongated body to move the distal tip between the expanded position and the contracted position, and
a linkage assembly coupled to a proximal end of the rod, the linkage assembly being moveable between a first position in which the distal end of the rod engages the distal tip of the elongated body and the distal tip is in the expanded position and a second position in which the distal end of the rod is disengaged from the distal tip and the distal tip is in the contracted position.

US Pat. No. 10,828,047

POLYMER CUTTING BLOCK INCLUDING METALLIC PROTECTIVE BUSHINGS AND METHOD OF USING SAME

DEPUY IRELAND UNLIMITED C...

1. A method of performing an orthopaedic surgical procedure, comprising:coupling a cutting block including a polymer body to a patient's femur,
advancing a cutting tool into a metallic planar cutting guide secured within a chamfer cutting slot of the polymer body, and
resecting, with the cutting tool, the patient's femur using the metallic planar cutting guide, wherein resecting the patient's femur using the metallic planar cutting guide includes advancing the cutting tool into contact with a metallic bushing positioned inside the chamfer cutting slot at an end of the chamfer cutting slot, the metallic bushing preventing the cutting tool from engaging an inner sidewall of the polymer body that defines the end of the chamfer cutting slot.

US Pat. No. 11,058,440

DEVICE FOR USE IN ORTHOPAEDIC SURGERY

DEPUY IRELAND UNLIMITED C...


1. A method of removing bone during orthopaedic surgery, the method comprising:providing a device comprising a metallic central member and an outer portion comprising a polymer, wherein the outer portion surrounds the metallic central member and has a profiled outer surface; and
impacting the device to remove said bone using the profiled outer surface, wherein the metallic central member comprises one or more engagement features for resisting movement of the metallic central member relative to the outer portion during impaction of the device and wherein at least one of the engagement features comprises an aperture passing through the metallic central member.

US Pat. No. 11,045,323

ALIGNMENT GUIDE

DePuy Ireland Unlimited C...


1. An orthopaedic joint prosthesis assembly which comprises:a. a head part of an orthopaedic joint prosthesis component, which has a spherical bearing surface for articulation with a corresponding joint surface, and an assembly surface having a first bore formed in it for receiving a spigot on another part of the orthopaedic joint prosthesis, said bore having a first axis that extends perpendicular to the assembly surface, and in which there is a discontinuity at an interface between the bearing surface and the assembly surface, the said assembly surface being arranged on a plane which is parallel to, or contains, a plane which is defined by the opening to the bore in the head part when the head part is viewed from one side in cross-section, and
b. an alignment guide comprising an axial portion and an arm extending from the axial portion, the arm including a distal portion and a proximal portion, the distal portion being configured to engage the assembly surface of the head part, the axial portion defining a second axis and being arranged to engage the bearing surface of the head part, directly or indirectly, when the head part is mounted within the guide, with the second axis coincident with the first axis, such that when an impaction force is applied along the second axis the force is directed along the first axis;
wherein the alignment guide includes at least two arms and in which the distal portion of each arm includes an in-turned lip; and
wherein at least one of the arms is capable of being pivoted relative to the other arm to provide access for mounting the head part within the alignment guide.