US Pat. No. 9,247,980

DEVICE FOR PERFORMING A SURGICAL PROCEDURE AND METHOD

KYPHON SARL, Neuchatel (...

1. A device for holding a surgical tool comprising:
a first member extending along a longitudinal axis between a first end and a second end, the first end including a first portion
connected to a second portion by a hinge, an inner surface of the first portion and an inner surface of the second portion
defining a cavity;

a pivoting member movably disposed in the cavity including a first inner surface, the first inner surface defining a first
passageway, the pivoting member further including a first end comprising a ball and a second end comprising a collet;

a cap having an inner surface configured to engage an outer surface of the collet; and
a second member disposed within the first passageway, the second member including a second inner surface, the second inner
surface defining a second passageway, the second passageway being configured to include therein one of an inflatable bone
tamp, a bone void filler, and a tool adapted to deliver a bone void filler;

wherein the pivoting member is movable between a first orientation such that the second portion is spaced apart from the pivoting
member and the pivoting member is rotatable to a selected trajectory relative to the longitudinal axis and a second orientation
such that the second portion engages the pivoting member to fix the second member in the selected trajectory.

US Pat. No. 9,161,818

DEVICE FOR PERFORMING A SURGICAL PROCEDURE AND METHOD

KYPHON SARL, Neuchatel (...

1. A device for holding a surgical tool comprising:
a first member extending along a longitudinal axis between a first end and a second end, the first end including an inner
surface defining a conduit extending transverse to the longitudinal axis, the conduit including a first portion and a second
portion defining a first chamber;

a cap having an inner surface including a first section configured to engage an outer surface of the first member and a second
section defining a second chamber extending transverse to the longitudinal axis, the second chamber being in communication
with the first chamber when the cap engages the first member such that the first and second chambers define a cavity;

a pivoting member movably disposed in the cavity and including an inner surface defining a passageway; and
a second member disposed within the passageway,
wherein the pivoting member includes a first end comprising a ball and a second end comprising a collet, the pivoting member
having a recess between the ball and the collet, the second section including a projection extending parallel to the longitudinal
axis, the projection being disposed in the recess when the cap engages the first member.

US Pat. No. 9,095,394

CEMENT DELIVERING DEVICE AND METHOD

KYPHON SARL, Neuchatel (...

1. A delivery system comprising:
a reservoir having a proximal end and a distal end, adapted for storing at least a first portion of a fluid, and configured
for applying a distal force on the first portion of the fluid toward the distal end;

a piston rod shaft having a proximal end, a distal end, and a first dimension, and configured for reciprocally moving through
the reservoir in a distal direction and a proximal direction;

an end portion connected to the distal end of the piston rod shaft, the end portion having a second dimension larger than
the first dimension of the piston rod shaft;

a sleeve having an upper opening in communication with the distal end of the reservoir, the upper opening having a third dimension
configured to permit passage therethrough of the piston rod shaft, and a lower opening, having the second dimension, configured
to be closed by insertion therein of the end portion; and

a delivery chamber in communication with the lower opening of the sleeve and configured for holding a second portion of the
fluid;

wherein the sleeve, the piston rod shaft, and the end portion are configured to elect the second portion of the fluid from
the delivery chamber when the piston rod shaft and the end portion are advanced in the distal direction; and

wherein the sleeve, the piston rod shaft, and the end portion are configured to allow a portion of the first portion of the
fluid in the reservoir, under the distal force applied to the first portion of the fluid in the distal direction by the configuration
of the reservoir, to move in the distal direction into the delivery chamber, when the piston rod shaft and the end portion
are retracted in the proximal direction.

US Pat. No. 9,163,749

VALVE CONTROL MECHANISM AND METHOD

KYPHON SARL, Neuchatel (...

1. A valve controller, comprising:
a housing;
a lever extending from the housing and pivotally connected thereto, the lever configured to control a valve between an open
position and a closed position, the lever adapted to be movable with respect to the housing between a first position and a
second position, the first position of the lever corresponding to the closed position of the valve, and the second position
of the lever corresponding to the open position of the valve, the lever including a protrusion projecting therefrom, and the
lever being biased toward the first position;

a switch having a valve open position and a valve closed position, the switch being pivotally connected to the housing; and
a switch linkage pivotally connected to a portion of the switch, the switch linkage including a generally centrally disposed
slot, the slot being configured to receive the protrusion

wherein the valve is moved from the closed position to the open position by at least one of moving the switch from the valve
closed position to the valve open position and moving the lever from the first position to the second position.

US Pat. No. 9,216,057

STEERABLE CATHETER SYSTEM AND METHOD OF USING A STEERABLE CATHETER SYSTEM TO DISSECT AND EVACUATE TISSUE

Kyphon SARL, Neuchatel (...

1. A catheter system for operating on tissue at a surgical site in a patient, the catheter system comprising:
an elongated shaft defining an axis, the shaft having a proximal end, a distal end, and an outer surface, the outer surface
defining a circumference, and including at least one slot-like, non-circumferential cavity extending through at least a portion
of the outer surface substantially perpendicular to the axis, the at least one cavity being configured to define a bending
movement of the distal end relative to the proximal end; and

a catheter tip attached to the distal end of the shaft, the catheter tip comprising a curved body having at least one cutting
edge, and at least one non-cutting area recessed from the at least one cutting edge;

wherein the bending movement of the distal end relative to the proximal end defined by the at least one cavity is adapted
to facilitate deflection and steering of the shaft through the patient to the surgical site.

US Pat. No. 9,549,760

REDUCED EXTRAVASATION OF BONE CEMENT

KYPHON SARL, Neuchatel (...

1. A method for treating a bone structure, comprising:
providing a kit comprising:
a calcium-dependent polymerizing sealant comprising an alginate,
a high pressure injection system for delivering the calcium-dependent polymerizing sealant,
bone cement,
a second injection system for delivering the bone cement, and
instructions for use of the kit;
injecting the calcium-dependent polymerizing sealant into the bone structure;
allowing the calcium-dependent polymerizing sealant to polymerize in the bone structure; and
injecting the bone cement into the bone structure, wherein the calcium-dependent polymerizing sealant is injected into the
bone structure before the bone cement is injected into the bone structure to prevent bone cement extravasation.

US Pat. No. 9,271,750

EXPANDABLE CANNULA AND METHOD OF USE

KYPHON SARL, Neuchatel (...

1. A device for enlarging a diameter of a hole in bone, comprising:
an elongated shaft, the elongated shaft including a proximal end, a distal end and at least two elongated partial-outer surface
portions, the at least two elongated partial-outer surface portions combining to define an unexpanded peripheral outer wall,
the unexpanded peripheral outer wall having an inner surface and a first diameter;

an expandable stylet disposed within the elongated shaft, the expandable stylet having an outer surface, a proximal end, and
a distal end, the distal end being configured to retractably extend out of at least the distal end of the elongated shaft
to contact the bone;

a rod provided in the proximal end of the elongated shaft, the rod being configured to engage the proximal end of the expandable
stylet and translate through the expandable stylet, thereby expanding the expandable stylet to define an expanded stylet,
the outer surface of the expanded stylet contacting the inner surface of the unexpanded peripheral outer wall, thereby expanding
apart the at least two elongated partial-outer surface portions, the expanded-apart at least two elongated partial-outer surface
portions defining an expanded peripheral outer wall of the elongated shaft, the expanded peripheral outer wall of the elongated
shaft having a second diameter greater than the first diameter; and

a cutting portion disposed on and at least partially around the peripheral outer wall of the elongated shaft between the proximal
end and the distal end, the cutting portion configured to cut the bone as the expanded peripheral outer wall of the elongated
shaft is inserted into the bone to enlarge the diameter of the hole in the bone, thereby defining at least one bone fragment;

wherein the elongated shaft is substantially hollow and is configured to capture the at least one bone fragment.
US Pat. No. 9,089,625

BONE CEMENT COMPOSITION AND METHOD OF MAKING THE SAME

KYPHON SARL, Neuchatel (...

1. A kit for bone cement comprising:
a first component comprising a spray-dried hydroxyapatite, a radical donor and poly(methyl methacrylate) (PMMA), wherein the
spray-dried hydroxyapatite is present at about 30 wt. % to about 99.5 wt. %, based on the total weight of the first component
and has a particle size of about 20 micrometers to about 35 micrometers; and

a second component comprising a radical scavenger, a diluent, a polymerization accelerator, and a reactive monomer of methyl
methacrylate (MMA),

wherein the reactive monomer of MMA comprises about 40 wt. % to about 95 wt. % of the second component,
wherein the first component and second component in the bone cement are present in a weight ratio of about 2.2:1 to about
3.3:1.

US Pat. No. 9,211,093

ADJUSTABLE SURGICAL INSTRUMENTS AND METHODS OF USE AND FABRICATION

KYPHON SARL, Neuchatel (...

1. A method for assessing an intervertebral disc space comprising:
selecting an assessment instrument including
an elongated catheter with proximal and distal ends,
an expandable body carried at the distal end of the elongated catheter and including a distal cap portion, and
a mandrel extending through the elongated catheter and the expandable body and attached to the distal cap portion;
inserting the expandable body into the intervertebral disc space;
extending the mandrel to move the distal cap portion distally of the distal end of the elongated catheter; and
expanding the expandable body within the intervertebral disc space.

US Pat. No. 9,198,684

SURGICAL CUTTING DEVICE HAVING A BLUNT TIP FOR PROTECTING TISSUE ADJACENT TARGETED TISSUE AND METHOD FOR USE THEREOF

KYPHON SARL, Neuchatel (...

1. A cutting device for cutting targeted tissue, the cutting device comprising:
an elongated shaft extending between a proximal end and a distal end, the elongated shaft defining a longitudinal axis;
a first arm extending from the distal end of the elongated shaft substantially perpendicular to the longitudinal axis, the
first arm including an inner surface defining a first cavity between the inner surface and the elongated shaft, and an outer
surface defining a blunt tip, the blunt tip defining a first protective portion, the first protective portion being configured
to protect at least a first portion of tissue, adjacent to the targeted tissue from being cut;

at least one second arm, the at least one second arm having a first end contacting the elongated shaft at a position intermediate
the proximal end of the elongated shaft and the distal end of the elongated shaft, a second end spaced away from the elongated
shaft, a length between the first end and the second end, the length defining a substantially straight line, the line having
a plurality of points defined thereon between the first end and the second end, and an inner surface defining a second cavity;
and

a cutting portion configured to cut tissue, the cutting portion extending from a first position in contact with the elongated
shaft to a second position in contact with the at least one second arm, the second position being intermediate the first end
of the at least one second arm and the second end of the at least one second arm, defining an overhanging portion of he at
least one second arm extending from the second position of the cutting portion to the second end of the at least one second
arm;

wherein each point on the line defined by the length of the second arm defines a substantially acute angle with respect to
the longitudinal axis; and

wherein the overhanging portion of the at least one second arm defines a second protective portion, the second protective
portion being configured to protect at least a second portion of tissue, adjacent to the targeted tissue, from being cut.

US Pat. No. 9,107,951

CALCIUM PARTICLE-EMBEDDED, SNAP-TO-DOUGH, HIGH-VISCOSITY BONE CEMENT

KYPHON SARL, Neuchatel (...

1. A composition comprising:
a) a first component comprising a poly(methyl methacrylate) (PMMA), a contrast agent, a radical donor and calcium based particles,
the PMMA having a molecular weight of about 200,000 grams/mole to about 500,000 grams/mole, the calcium based particles comprising
hydroxyapatite particles having an average particle size of about 5 microns to about 100 microns; and

b) a second component comprising methyl methacrylate (MMA), a radical scavenger, and a polymerization accelerator;
wherein the composition has an average setting time of about 13 minutes and a stiffness of between about 50 MPa and about
930 MPa.

US Pat. No. 9,480,955

BONE CEMENT MIXING AND DELIVERY SYSTEM WITH REDUCED FUME EXPOSURE

KYPHON SARL, Neuchatel (...

1. A device for mixing and containing fumes for a bone cement component comprising:
a vial holder comprising a body having an inner surface that defines a cavity, the vial holder comprising a distal portion
having a threaded outer surface, the vial holder comprising an opening that extends through the distal portion and is in communication
with the cavity;

a vial positioned within the cavity;
a container comprising a proximal chamber and a distal chamber, the body being positioned within the proximal chamber, a first
portion of the distal chamber being defined by a threaded inner surface that is configured to engage the threaded outer surface
to move the vial holder axially relative to the container, the container comprising an outer surface that defines a ledge,
the container comprising a vial-breaking device disposed therein and an elastomeric seal having a first surface and an opposite
second surface, the seal being positioned such that the vial-breaking device extends through the first and second surfaces,
the seal being configured to form a seal against an unthreaded inner surface that defines a second portion of the distal chamber
so as to prevent fumes from escaping from the container; and

a mixing vessel comprising a port and a syringe that is in communication with the port, the syringe comprising a plunger that
is movable within the syringe, the mixing vessel comprising a second threaded inner surface that engages a second threaded
outer surface of the container to move the container axially relative to the mixing vessel between a first orientation in
which the ledge is spaced apart from the plunger and a second orientation in which the ledge engages the plunger to move the
plunger relative to the syringe and drive contents of the syringe out of the port.

US Pat. No. 9,161,774

ROTATABLE CUTTING INSTRUMENT

KYPHON SARL, Neuchatel (...

1. A surgical instrument comprising:
a first member including an inner surface defining a first passageway;
a second member disposable within the first passageway and movable relative to the first member, the second member defining
a longitudinal axis and extending between a first end and a second end configured to engage tissue, the second end including
a first surface configured for a non-penetrating engagement with the tissue and a second surface including at least two spaced
apart cutting members extending axially from the first surface, wherein the cutting members are rotatable to excise a portion
of the tissue; and

a third member disposable within the first passageway and movable relative to the first member, the third member extending
between a first end and a second end configured to penetrate laminae of the tissue and form a cavity therein.

US Pat. No. 9,204,914

CEMENT MIXER AND BONE FILLER DEVICE

KYPHON SARL, Neuchatel (...

1. A bone cement mixing apparatus comprising:
a mixing vessel for mixing bone cement materials having an orifice;
a syringe body having a proximal end, an oppositely disposed distal end, a longitudinal axis and a lumen extending from the
proximal end to the distal end along the longitudinal axis, each of the proximal and distal ends having an opening therein,
the opening in the proximal end configured to align with the orifice in the mixing vessel so as to provide a passageway between
the mixing vessel and the lumen of the syringe body,

a separator having an orifice, the separator configured to slide between the proximal end of the syringe body and the mixing
vessel from a first position wherein the orifice in the separator substantially aligns with the lumen in the syringe body
and the orifice in the mixing vessel to a second position wherein the orifice in the separator is misaligned with the lumen
in the syringe body and the orifice in the mixing vessel so as to block the passageway between the mixing vessel and the lumen
of the syringe body, and

a plunger configured to extend through the orifice in the mixing vessel and into the lumen of the syringe body, the plunger
being slideably movable along the longitudinal axis towards the distal end of the syringe body;

wherein the orifice in the separator is coaxial with the longitudinal axis when the separator is in the first position and
the orifice in the separator is offset from the longitudinal axis when the separator is in the second position.

US Pat. No. 9,149,318

LOW COST INFLATABLE BONE TAMP

KYPHON SARL, Neuchatel (...

1. A device for performing a surgical procedure, the device comprising:
an elongated shaft extending between a proximal end and a distal end and defining an interior lumen, the distal end of the
elongated shaft being open to allow for dispensing of a material from the elongated shaft, the elongated shaft comprising
a primary region having a first diameter, a secondary region having a second diameter, and a continuously tapering transition
region extending between the primary region and the secondary region, the first diameter being greater than the second diameter;

a valve disposed with the proximal end of the elongated shaft, the valve including a membrane;
an inflatable structure comprising a proximal end embedded with a wall thickness of the primary region of the elongated shaft
and a distal end coupled to the secondary region of the elongated shaft, the interior lumen being in communication with an
interior volume of the inflatable structure; and

a stylet configured for insertion through the membrane and removably disposed in the interior lumen of the elongated shaft
such that the stylet provides strength to the elongated shaft.

US Pat. No. 9,050,109

SURGICAL TOOL FOR LSS DECOMPRESSION

KYPHON SARL, Neuchatel (...

1. A cutting device comprising:
a lower jaw extending between a proximal end and a distal end, the distal end terminating with a cavity and a blunt tip;
an upper jaw extending between a proximal end and a distal end and configured for translation along the lower jaw, the upper
jaw includes a cutting tip configured to cut bone, the upper jaw being an outer sleeve and the lower jaw being a probe configured
for translation in and out of the sleeve.

US Pat. No. 9,204,915

DEVICE FOR PERFORMING A SURGICAL PROCEDURE AND METHOD

KYPHON SARL, Neuchatel (...

1. A device for performing a surgical procedure on a patient, the device defining a longitudinal axis, the device comprising:
an inflatable member extending along the longitudinal axis, the inflatable member being inflatable between a first substantially
uninflated position and a second substantially inflated position, and including a proximal end having a first opening, a distal
end having a second opening, the first opening defining an entrance to an inner surface of the inflatable member, the inner
surface defining a first passageway extending from the proximal end to the distal end, the second opening defining an exit
from the inflatable member, and a chamber, the chamber defining a multi-layered balloon, each layer having one of substantially
a same diameter and substantially a same wall thickness;

an inner member extending along the longitudinal axis, the inner member being disposed in the first passageway and extending
through the first and second openings, the inner member including an inner surface defining a second passageway, a proximal
end of the inner member including a third opening, and a distal end of the inner member including a fourth opening, the fourth
opening of the inner member passing through the second opening of the inflatable member, the third and fourth openings of
the inner member being in communication with the second passageway, the distal end of the inflatable member being bonded to
an outer surface of the inner member;

a guide member disposed in the second passageway and extending through at least the third and fourth openings of the inner
member;

an outer member extending along the longitudinal axis substantially surrounding the inner member, the outer member comprising
a proximal end having a projection including a threaded outer surface, and an inner surface defining a third passageway, the
third passageway being configured to house the inflatable member therein, when the inflatable member is in the first substantially
uninflated position; and

a cap including a threaded inner surface engaging the threaded outer surface of the projection;
wherein at least the inflatable member is movable along the longitudinal axis between the first substantially uninflated position
within at least the third passageway, and the second substantially inflated position exterior to the third passageway.

US Pat. No. 9,192,420

SURGICAL SYSTEM AND METHODS OF USE

KYPHON SARL, Neuchatel (...

1. An expandable device system comprising:
an expandable device comprising:
an inflatable body, and
a compliant sleeve having a longitudinal axis, the compliant sleeve including a distal end, a proximal end, and a cavity extending
from the proximal end to the oppositely disposed distal end along the longitudinal axis, the cavity defined by an inner wall
and an outer wall of the compliant sleeve, the distal end of the compliant sleeve forming a closed portion of the cavity and
the proximal end including an opening, the cavity being configured to receive a portion of the inflatable body; and

a cannula including a holder portion configured to secure the proximal end of the compliant sleeve to the cannula, wherein
at least a portion of the compliant sleeve is folded in the holder portion following inflation of the inflatable body.

US Pat. No. 9,254,157

BONE FRACTURE REDUCTION DEVICE AND METHODS USING SAME

KYPHON SARL, Neuchatel (...

1. A bone reduction device comprising:
a fill tube extending along a longitudinal axis from a proximal end to an opposite distal end, the fill tube comprising an
inner surface that defines a lumen extending from the proximal end to the distal end along the longitudinal axis;

an inflatable body attached to the distal end of the fill tube, the inflatable body having an inner surface that defines a
fillable cavity, the fillable cavity being in fluid communication with the lumen;

an inner restraining member continuously connected to the inner surface of the inflatable body along the longitudinal axis
so as to restrain expansion of the inflatable body in a manner that defines a flat horizontal exterior surface of the inflatable
body when the inflatable body is fully inflated; and

a stylet positioned within the lumen, the stylet comprising proximal and distal flat marker portions, the flat horizontal
exterior surface extending along the longitudinal axis from the proximal flat marker portion to the distal flat marker portion.

US Pat. No. 9,107,699

BONE TAMP AND METHODS OF USE

KYPHON SARL, Neuchatel (...

1. A method of creating a cavity in a bone, the method comprising:
inserting, into a region of the bone with a lesion, an inflatable bone tamp including:
a plurality of linearly aligned expandable bodies,
an elongated tubular shaft extending through the plurality of linearly aligned expandable bodies, the elongated tubular shaft
including a shaft wall that defines a lumen and an interior partition structure forming a plurality of channels within the
lumen, the plurality of channels extending through the shaft, each of the channels formed by a segment of the shaft wall and
the interior partition structure and each of the channels in communication with the respective one of the plurality of expandable
bodies via openings in the shaft, and

a sleeve including an inflation port, the sleeve being rotatably coupled to the shaft such that the inflation port is switchable
between positions in which the inflation port is in communication with a different one of the channels such that wherein each
of the expandable bodies is independently inflatable via the inflation port;

injecting a first amount of inflation medium into a first channel formed by a first segment of the shaft wall and the interior
partition structure to inflate a first one of the plurality of expandable bodies; and

injecting a second amount of inflation medium into a second channel formed by a second segment of the shaft wall and the interior
partition structure to inflate a second one of the plurality of expandable bodies.

US Pat. No. 9,211,140

DYNAMICALLY EXPANDABLE CANNULAE AND SYSTEMS AND METHODS FOR PERFORMING PERCUTANEOUS SURGICAL PROCEDURES EMPLOYING SAME

KYPHON SARL, Neuchatel (...

1. A surgical system, comprising:
a cannula including an elongate body extending between a proximal end and a distal end, said cannula being defined by a pair
of laterally displaceable elongate members, said elongate members being expandable opposite one another in one direction,
said elongate members cooperating to define a hollow working channel dynamically expandable from a first, unexpanded configuration,
wherein in said first configuration said working channel is substantially uniformly sized and shaped from said proximal end
to said distal end of said elongate body;

a sheath member extending around said elongate members;
a device including a body having a height that is greater than a diameter of said working channel in said first configuration,
said body being configured to be inserted in and engage with said working channel to expand said working channel from said
first configuration; and

wherein said working channel expands from said first configuration upon engagement of said at least one portion of said device
with said working channel and returns to said first configuration upon disengagement of said at least one portion of said
device with said working channel.

US Pat. No. 9,149,317

SURGICAL TOOL HOLDER

KYPHON SARL, Neuchatel (...

1. A device for holding at least one surgical tool comprising:
a base extending along a longitudinal axis between a proximal end and a distal end, the distal end being configured for engagement
with a body of a patient to stabilize the device;

a retaining portion disposed at the proximal end of the base, the retaining portion defining a first passageway extending
transverse to the longitudinal axis; and

an insert configured for disposal in the first passageway, and including an inner surface defining a second passageway configured
to receive at least a portion of the at least one surgical tool, the second passageway extending at one of at least two fixed
angles relative to the longitudinal axis such that the at least a portion of the at least one surgical tool is disposed at
the one of at least two fixed angles when the at least a portion of the at least one surgical tool is disposed in the second
passageway;

wherein the at least two fixed angles, define angulation in at least two planes for the at least one surgical tool; and
wherein the insert is removable and the first passageway is configured to receive a plurality of the inserts, each of the
inserts in the plurality of the inserts defining one of a plurality of passageways, each passageway in the plurality of passageways
being disposed at one of a plurality of different fixed angles relative to the longitudinal axis in the at least two planes
for the at least one surgical tool.

US Pat. No. 10,959,765

DEVICE FOR PERFORMING A SURGICAL PROCEDURE AND METHOD

KYPHON SARL, Tolochenaz ...

1. A method comprising:providing a device comprising:
an outer member defining an axis and comprising an inner surface defining a first passageway,
an inflatable member having a proximal end extending from a proximal end of the outer member, the inflatable member including an inner surface defining a chamber,
an inner member extending continuously from a proximal end to an opposite distal end, the proximal end of the inner member being positioned within the first passageway and the distal end of the inner member being positioned within the chamber such that the distal end of the inner member is directly coupled to a distal end of the inflatable member and the distal end of the inner member extends distal to the distal end of the inflatable member, the inner member having an inner surface defining a second passageway, and
a support member movably disposed within the second passageway;
inflating the inflatable member such that the inflatable member has an inflated height;
deflating the inflatable member such that the inflatable member is in a first position defined by a first height and a first length, the first height being less than the inflated height; and
translating the support member along the axis in a first direction such that the inflatable member moves from the first position to a second position defined by a second height and a second length, the second height being less than the first height and the second length being greater than the first length.

US Pat. No. 11,109,890

VERTEBRAL BODY ACCESS CANNULA WITH ENHANCED BENDING STIFFNESS

KYPHON SARL, Neuchatel (...


1. A cannula for kyphoplasty, the cannula comprising:a shaft extending along a longitudinal axis between opposite first and second end surfaces, the shaft comprising an inner surface defining a lumen, the shaft comprising a first opening that extends through the first end surface and a second opening that extends through the second end surface; and
a scoop comprising opposite first and second side walls each extending from the second end surface, the first side wall including a first top surface, the second side wall including a second top surface, the top surfaces extending parallel to one another along at least a portion of the scoop, the scoop comprising an arcuate inner surface that is continuous with the inner surface of the shaft and an opposite outer surface, the scoop having a maximum width, the maximum width being equal to a maximum width of the shaft, the scoop including a first portion, a second portion and a third portion between the first portion and the second portion, the third portion including a rib having a radius of curvature that is less than a radius of curvature of the first portion or the second portion, the rib extending parallel to the longitudinal axis and comprising a concave inner surface that is continuous with the arcuate inner surface and a convex outer surface that is continuous with the outer surface, the rib being spaced apart from the second top surface, the scoop having only one rib, a portion of the arcuate inner surface between the second end surface and the rib having a continuous radius of curvature from the first top surface to the second top surface.

US Pat. No. 11,045,240

DISPENSING SYSTEM AND METHOD

KYPHON SARL, Neuchatel (...


1. A device comprising:a body comprising a proximal chamber, a distal chamber and a wall between the chambers, the chambers being disposed in a series configuration, the body including a first port in communication with the proximal chamber and a second port in communication with the distal chamber; and
a shaft extending through the wall and comprising a proximal plunger movably positioned within the proximal chamber and a distal plunger movably positioned within the distal chamber.