US Pat. No. 9,078,783

SILENT EFFUSION REMOVAL

Acclarent, Inc., Menlo P...

1. A method for clearing effusion from an ear, the method comprising:
(a) applying liquid to an ear canal, which is proximal to a perforated tympanic membrane, the perforated tympanic membrane
being proximal to a middle ear containing effusion;

(b) applying an ear device to seal and pressurize the liquid inside the ear canal;
(c) pressurizing the liquid inside the ear canal, the ear device regulating the amount of pressure inside the ear canal; and
(d) inducing a Eustachian tube, which is distal to the middle ear, to open, which causes the pressurized liquid to displace
the effusion into the Eustachian tube such that the effusion flows from the middle ear into the Eustachian tube under the
influence of at least the pressurized liquid.

US Pat. No. 9,198,559

DEVICE AND METHOD TO DISPLAY THE ANGLE OF VIEW ENDOSCOPICALLY WHEN USING A MULTI-ANGLE ENDOSCOPE

Acclarent, Inc., Menlo P...

1. An endoscope comprising:
(a) an elongate shaft assembly having a proximal end and a distal end, wherein at least a portion of the elongate shaft assembly
is sized to fit within an anatomical passageway of a patient;

(b) a window located at the distal end of the shaft assembly, wherein the shaft assembly is configured to transmit a view
acquired through the window;

(c) a viewing angle adjustment assembly operable to selectively change a viewing angle associated with the window; and
(d) an indicator feature positioned to be visible within a view acquired through the window, wherein the indicator feature
is positioned along a side region of the window, wherein the indicator feature is configured to indicate the viewing angle
associated with the window.

US Pat. No. 9,107,574

ENDOSCOPIC METHODS AND DEVICES FOR TRANSNASAL PROCEDURES

Acclarent, Inc., Menlo P...

1. A method for locating a sinus ostium, said method comprising the steps of:
inserting an endoscope through a nostril of a patient and advancing the endoscope along a longitudinal path toward a location
of the sinus ostium;

positioning the distal end of the endoscope such that a pathway toward the sinus ostium is within the field of view of the
endoscope;

inserting an illuminating guidewire through the nostril and advancing a distal end portion of the illuminating guidewire distally
of a distal end of the endoscope, wherein the acts of inserting the illuminating guidewire and advancing the distal end portion
are performed while maintaining the longitudinal position of the endoscope along the longitudinal path to keep the pathway
toward the sinus ostium within the field of view of the endoscope; and

viewing, through the endoscope, the advancement of the distal end portion of the illuminating guidewire into the field of
view including the pathway toward the sinus ostium.

US Pat. No. 9,050,440

MULTI-CONDUIT BALLOON CATHETER

Acclarent, Inc., Menlo P...

1. A method of treating a patient's nasal sinuses, comprising:
(a) providing a balloon catheter having an oblong body having a proximal segment, a balloon member including a distal terminal
end, a distal segment, an inflation/deflation supply conduit in fluid communication with a balloon mounted on said distal
segment, an irrigation conduit extending distally from said balloon, a suction conduit extending distally from said irrigation
conduit, the irrigation conduit configured about and coaxial with the suction conduit, the inflation/deflation supply conduit
positioned outside an outer diameter of the irrigation conduit, and a balloon catheter terminal end defining a suction opening
which is outside and extending distally beyond the distal terminal end of the balloon;

(b) pushing said distal segment with said balloon deflated into a space associated with a nasal sinus of said patient;
(c) introducing fluid under pressure into said inflation/deflation supply conduit to inflate said balloon and dilate said
space;

(d) introducing fluid via said irrigation conduit distally of said balloon, and
(e) configuring the terminal end to suction material at a treatment site distally of said balloon via said suction conduit.

US Pat. No. 9,351,750

DEVICES AND METHODS FOR TREATING MAXILLARY SINUS DISEASE

Acclarent, Inc., Irvine,...

1. A system useable for treating a disorder of a maxillary sinus, the system comprising a sinus spacer device that comprises:
(a) an elongate shaft having a lumen, a proximal end and a distal end,
(b) an expandable reservoir insertable into a paranasal sinus and attached to the distal end of the elongate shaft such that
a substance may be introduced through the lumen of the elongate shaft into the expandable reservoir, thereby causing the reservoir
to expand to a size that is greater than the size of a paranasal ostium, wherein a sidewall of the reservoir comprises a plurality
of openings configured to allow a substance that has been introduced into the reservoir to exit the reservoir into the maxillary
sinus via the openings, and

(c) a collapsible retention structure insertable into a paranasal sinus and biased to expand from a collapsed orientation
to an expanded orientation to thereby prevent slipping of the reservoir outwardly from a paranasal ostium.

US Pat. No. 9,457,175

BALLOON CATHETERS AND METHODS FOR TREATING PARANASAL SINUSES

Acclarent, Inc., Irvine,...

1. A method of using a dilator to treat a patient, wherein the dilator comprises:
(i) a first tubular elongate member body having a proximal segment and a distal segment,
(ii) a balloon mounted located at the distal segment of the first tubular elongate member body, and
(iii) a port located at the proximal segment of the first tubular elongate member body, wherein the port is configured to
provide fluid under pressure to inflate the balloon;

wherein the method comprises:
(a) pushing the distal segment of the first tubular elongate member body via the proximal segment of the first tubular elongate
member body to position the distal segment of the first tubular elongate member body into a space associated with a nasal
sinus of the patient, wherein the balloon is in a deflated state during the act of pushing, the first tubular elongate member
body having sufficient stiffness and column strength to be pushed into the space; and

(b) introducing fluid under pressure through the proximal segment of the first tubular elongate member body to inflate the
balloon and dilate the space.

US Pat. No. 9,604,041

NASAL FLUID MANAGEMENT DEVICE

Acclarent, Inc., Irvine,...

1. A method of providing suction within a nasopharynx or choana of a patient, the method comprising:
(a) positioning a non-expanded absorbent body through a nostril of a patient and within the nasopharynx or the choana, wherein
a fluid conduit is at least partially disposed within the absorbent body and is thereby in fluid communication with the absorbent
body, wherein the fluid conduit extends externally through the nostril of the patient upon positioning of the non-expanded
absorbent body within the nasopharynx or the choana, wherein the fluid conduit is in communication with a connector;

(b) attaching a fluid source with the connector in such a way that the fluid source is in fluid communication with the fluid
conduit;

(c) expanding the absorbent body within the nasopharynx or the choana by communicating fluid from the fluid source to the
absorbent body via the fluid conduit, thereby expanding the absorbent body with the communicated fluid such that the absorbent
body bears against the nasopharynx or the choana;

(d) disconnecting the fluid source from the connector;
(e) connecting a suction device with the connector in such a way that the suction device is in fluid communication with the
fluid conduit; and

(f) introducing an irrigation catheter through the nostril of a patient, then introducing fluid into the patient in or near
the nasopharynx or the choana via the irrigation catheter while applying suction to the fluid conduit, thereby drawing excess
amounts of the introduced fluid from the nasopharynx or the choana via the expanded absorbent body such that the expanded
absorbent body retains enough fluid to bear against the nasopharynx or the choana.

US Pat. No. 9,198,736

ADAPTER FOR ATTACHING ELECTROMAGNETIC IMAGE GUIDANCE COMPONENTS TO A MEDICAL DEVICE

Acclarent, Inc., Menlo P...

1. An adapter device useable for attaching an electromagnetic image guidance element to a medical device, a distal portion
of said medical device being insertable into the body of a human or animal subject during performance of the procedure and
a proximal portion of said medical device remaining outside of the subject's body during performance of that procedure, said
adapter device comprising:
(a) a body portion;
(b) a medical device holding portion having a longitudinal axis, wherein the medical device holding portion is configured
to firmly hold the proximal portion of the medical device relative to the longitudinal axis, wherein the medical device holding
portion defines a longitudinal plane which extends along the longitudinal axis, wherein the medical device holding portion
includes a fixed channel member unitarily coupled to the body portion; and

(c) an element holding portion comprising:
(i) a distal end,
(ii) a proximal end, and
(iii) a clamp coupled to the body, wherein the clamp is partially located between the distal end of the element holding portion
and the proximal end of the element holding portion,

wherein the clamp is configured to directly hold the image guidance element firmly in a substantially fixed spatial relation
to at least one location of the medical device while allowing a portion of the medical device to be inserted into the subject's
body for purposes of the procedure.

US Pat. No. 9,095,364

DEVICE AND METHOD FOR DILATING AN AIRWAY STENOSIS

Acclarent, Inc., Menlo P...

1. A medical device for dilating an airway stenosis, said device comprising:
a proximal end;
a distal end;
a shaft system having an inflation lumen and a ventilating lumen between said proximal end and said distal end, the inflation
lumen and the ventilating lumen being adjacent lumens, and said shaft system having a proximal shaft section and a distal
shaft section;

an inflatable balloon having an inflation diameter of between 5 mm and 14 mm and an inflation length of between 24 mm and
40 mm on said distal shaft section, proximal to the distal end of the medical device;

a ventilating tip on the distal shaft section, distal to the inflatable balloon, said ventilating tip comprising a tip opening
and one or more radially facing openings; and

a connector on the proximal shaft section, said connector comprising a ventilation port and an inflation port,
wherein the inflation lumen extends from the inflation port to the shaft system distal shaft section.

US Pat. No. 9,072,626

SYSTEM AND METHOD FOR TREATMENT OF NON-VENTILATING MIDDLE EAR BY PROVIDING A GAS PATHWAY THROUGH THE NASOPHARYNX

Acclarent, Inc., Menlo P...

1. A method for providing a gas pathway in the middle ear region of a patient, the method comprising:
(a) advancing a guide catheter into the Eustachian tube (ET) of the patient via the patient's nasopharynx;
(b) introducing an interventional device through the guide catheter into the ET of the patient to relieve obstruction or blockage
in the ET;

(c) removing the interventional device from the ET;
(d) introducing an endoluminal ET ventilating implant into the ET of the patient through the guide catheter;
(e) advancing the implant into the ET adjacent the cartilage and tensor villi palatine or the levator villi palatine muscles,
wherein the implant is dimensioned for insertion into the ET adjacent the nasopharynx;

(f) tethering the implant to tissue; and
(g) removing the guide catheter from the ET, leaving the implant tethered in the tissue;
thereby providing a gas pathway between the ET lumen and the nasopharynx using the implant, the implant being dimensioned
and configured to modulate an opening in a gas pathway in communication with the ET lumen and the nasopharynx.

US Pat. No. 9,055,965

DEVICES, SYSTEMS AND METHODS USEABLE FOR TREATING SINUSITIS

Acclarent, Inc., Menlo P...

1. A method of performing a surgery on a paranasal sinus of a human or animal subject, said method comprising the steps of:
a) inserting at least one endoscope;
b) inserting at least one rigid tool capable of performing a maneuver within the field of view of the endoscope;
c) inserting a balloon catheter that has at least one flexible region capable of performing a maneuver outside the field of
view of the endoscope, the balloon catheter comprising a catheter shaft, a non-compliant balloon mounted on the catheter shaft,
said balloon being positionable within the opening of the paranasal sinus while in a non-inflated state and thereafter inflatable
to an inflated state having a diameter of at least about 3 mm such that it will cause dilation of the opening of the paranasal
sinus, said balloon having an outer surface comprising a polymeric material and at least one position indicating element useable
to determine when the balloon is positioned within the opening of the paranasal sinus so as to cause the desired dilation;

d) using the rigid tool to perform a maneuver within the field of view of the endoscope; and
e) using the at least one tubular device to perform a maneuver outside the field of view of the endoscope.

US Pat. No. 9,179,823

METHODS AND DEVICES FOR FACILITATING VISUALIZATION IN A SURGICAL ENVIRONMENT

Acclarent, Inc., Menlo P...

1. A quick release connector for use with an illuminating guidewire, said quick release connector comprising:
a main body having a proximal end portion and a distal end portion;
a channel in said distal end portion and opening to a distal end of said main body, said channel configured and dimensioned
to slidably receive a proximal end portion of the illuminating guidewire;

a tapering light channel in said proximal end portion and opening to a proximal end of said main body, wherein said to tapering
light channel is configured to adapt a relatively larger inside diameter of a light channel to a relatively smaller diameter
of the proximal end of the illuminating guidewire; and

a quick release locking mechanism configured to assume a locked position and an unlocked position, wherein when in said locked
position, said quick release locking mechanism fixes the proximal end portion of the illuminating guidewire in said channel;

wherein said channel of said quick release locking mechanism directly engages the proximal end portion of the illuminating
guidewire.

US Pat. No. 9,089,258

ENDOSCOPIC METHODS AND DEVICES FOR TRANSNASAL PROCEDURES

Acclarent, Inc., Menlo P...

1. A method for locating a sinus ostium, said method comprising the steps of:
(a) inserting a sinus guide and an endoscope through a nostril of a patient;
(b) advancing the sinus guide toward a location of the sinus ostium under the guidance of the endoscope;
(c) inserting an illuminating guidewire through the sinus guide and into the nostril and advancing a distal end portion of
the illuminating guidewire distally of a distal end of the endoscope and distally of a distal end of the sinus guide, wherein
the distal end of the illuminating guidewire includes a light emitting feature;

(d) viewing, through the endoscope, the advancement of the distal end portion of the illuminating guidewire to facilitate
guidance of the advancement of the illuminating guidewire along a desired path;

(e) identifying a location of the sinus ostium by observing a transillumination region, wherein the transillumination region
is provided by illumination from the light emitting feature of the guidewire;

(f) advancing a working device through the sinus guide to position the working device through a distal end of the sinus guide
and into the sinus ostium after identifying the location of the sinus ostium by observing the transillumination region; and

(h) actuating the working device to thereby perform a diagnostic or therapeutic function in one or both of the sinus ostium
or an adjacent sinus cavity.

US Pat. No. 9,649,477

FRONTAL SINUS SPACER

Acclarent, Inc., Irvine,...

1. A substance delivering sinus spacer system for delivering a substance to a paranasal sinus, the system comprising:
(a) a curved delivery guide configured to extend through a nostril to position a distal end of the delivery guide in or near
an ostium of a paranasal sinus while a proximal end of the delivery guide is located outside of the nostril;

(b) an elongate substance delivery catheter having a longitudinal axis, a proximal end and a distal end; and
(c) a substance delivering sinus spacer device extending from and in fluid communication with the distal end of the delivery
catheter, wherein at least a portion of the spacer device is configured to fit within the paranasal sinus ostium, wherein
the spacer device comprises:

(i) an elongate tubular shaft with an atraumatic tip,
(ii) an expandable reservoir attached to the tubular shaft, wherein the expandable reservoir is configured to receive and
hold a substance after the spacer device has been positioned in the paranasal sinus ostium, and

(iii) at least two collapsible retention members, wherein the retention members are configured to maintain a position of the
spacer device in the paranasal sinus ostium, wherein the retention members are positioned on the tubular shaft adjacent to
the expandable reservoir and overlapping the expandable reservoir along the longitudinal axis of the tubular shaft.

US Pat. No. 9,095,646

DEVICES AND METHODS FOR TRANSNASAL DILATION AND IRRIGATION OF THE SINUSES

Acclarent, Inc., Menlo P...

1. A medical device for the treatment of a sinus opening, the medical device comprising:
a proximal end:
a distal end;
a shaft system having an inflation lumen, a guide element lumen and an irrigation lumen between said proximal end and said
distal end, said shaft system having a proximal shaft section and a distal shaft section;

an inflatable balloon having an inflation diameter of between 3.5 mm and 7 mm and an inflation length of between 12 mm and
24 mm on said distal shaft section and proximal to said distal end; and

an irrigation tip on said distal shaft section, distal to the inflatable balloon, said irrigation tip comprising a tip opening
and one or more radially facing openings

wherein the guide element lumen merges into the irrigation lumen in the distal shaft section of the shaft system.

US Pat. No. 9,463,068

METHODS AND DEVICES FOR PROTECTING NASAL TURBINATES

Acclarent, Inc., Irvine,...

1. A turbinate protector comprising:
(a) a first protecting portion;
(b) a second protecting portion; and
(c) a bridge portion joined to the first and second protecting portions;
wherein the turbinate protector is sized and configured to fit on a turbinate, and wherein the first and second protecting
portions each includes a proximal end portion, and each of the proximal end portions is joined to the bridge portion.

US Pat. No. 9,216,112

SYSTEM AND METHOD FOR THE SIMULTANEOUS BILATERAL PLACEMENT OF PRESSURE EQUALIZATION TUBES

Acclarent, Inc., Menlo P...

1. A system for bilateral treatment of target tissue associated with each ear, which includes the tympanic membranes of a
patient, the system comprising:
(a) first device having at least one treatment delivery surface, wherein the first device is adapted to be aligned with the
target tissue of a first ear of the patient, and wherein:

(i) the at least one treatment delivery surface of the first device comprises a tympanic membrane penetrator configured for
a myringotomy; and

(ii) the first device comprises an electromechanical actuator effecting movement of the tympanic membrane penetrator in response
to electrical signals;

(b) a first tympanostomy tube coupled with the first device;
(c) a second device having at least one treatment delivery surface, wherein the second device is adapted to be aligned with
the target tissue of a second ear of the patient, and wherein:

(i) the at least one treatment delivery surface of the second device comprises a tympanic membrane penetrator configured for
a myringotomy; and

(ii) the second device comprises an electromechanical actuator effecting movement of the tympanic membrane penetrator in response
to electrical signals; and

(d) a second tympanostomy tube coupled with the second device; and
wherein the first and second devices are actuatable to effect therapeutic remodeling of the target tissue of each ear of the
patient.

US Pat. No. 9,167,961

METHODS AND APPARATUS FOR TREATING DISORDERS OF THE EAR NOSE AND THROAT

Acclarent, Inc., Menlo P...

1. A method for adapting a device that is insertable into the body of a human or animal subject to render that device useable
in conjunction with a navigation system such that the navigation system may determine the location of the device within the
subject's body, said method comprising the steps of:
(a) attaching an adapter to a proximal portion of a working device, wherein the proximal portion of the working device remains
outside of the subject's body, wherein the working device has a distal portion that is insertable into the subject's nasal
cavity and a reference location on said distal portion, wherein the working device comprises a tubular guide having a malleable
or rigid curved distal end, wherein the working device is configured to accommodate a balloon catheter therethrough, wherein
the working device is configured such that a balloon of the balloon catheter is extendable beyond the distal portion of the
tubular guide, wherein the adapter comprises, or is attachable to, a navigation unit that is useable by a navigation system
to determine the position of the reference location within the subject's nasal cavity, wherein the navigation unit comprises
one or more navigation elements that are useable by the navigation unit to dynamically determine the position of the reference
location relative to the adapter;

(b) inserting the distal portion of the working device through a nostril of the subject and into the subject's nasal cavity;
(c) using the navigation system in conjunction with the navigation unit to determine the position of the reference location
within the subject's nasal cavity and to orient the curved distal end of the working device within the nasal cavity of a patient;

(d) inserting a balloon catheter through the tubular guide;
(e) advancing the balloon catheter further through the tubular guide to advance an inflatable balloon of the balloon catheter
beyond the distal end of the tubular guide;

(f) using the navigation system in conjunction with the navigation unit to approximate the location of the balloon of balloon
catheter relative to a sinus ostium of the patient;

(g) maneuvering the balloon of the balloon catheter into the sinus ostium using the navigation system in conjunction with
the navigation unit; and

(g) enlarging the sinus ostium with the balloon catheter by expanding the balloon of the balloon catheter.

US Pat. No. 9,101,384

DEVICES, SYSTEMS AND METHODS FOR DIAGNOSING AND TREATING SINUSITIS AND OTHER DISORDERS OF THE EARS, NOSE AND/OR THROAT

Acclarent, Inc., Menlo P...

1. A method of confirming the location of the distal tip of a device placed within the sinus of a patient comprising:
introducing an endoscope into a nasal passageway of the patient;
advancing a guide catheter into the nasal passageway under the endoscopic visualization;
advancing a distal tip of a light emitting elongate member through the guide catheter and into a desired sinus cavity;
inputting light to the light emitting elongate member via a proximal light port disposed external to the patient; and
viewing the location of the light through the patient's skin and based on said viewing determining whether the distal tip
of the light emitting elongate member is correctly located in the desired sinus cavity.

US Pat. No. 9,808,144

SWING PRISM ENDOSCOPE

Acclarent, Inc., Irvine,...

1. An endoscope configured to pass into a head of a human or animal subject, the endoscope comprising:
(a) a handle, wherein the handle comprises a rotatable user input feature;
(b) an elongate tubular member extending distally from the handle, wherein the tubular member comprises a proximal end and
a distal end, wherein the tubular member defines a hollow tubular interior extending the length of the tubular member, wherein
the tubular member further defines a central longitudinal axis;

(c) a viewing window disposed at the distal end of the tubular member;
(d) a pivotable prism disposed within the hollow tubular interior of the tubular member proximal to the distal end of the
tubular member, wherein the pivotable prism comprises a plurality of teeth, wherein the pivotable prism is configured to change
a direction of view of the endoscope, wherein the user input feature is operable to adjust a viewing angle of the endoscope
by pivoting the pivotable prism within the hollow tubular interior; and

(e) a threaded shaft comprising a threaded portion, wherein the threaded shaft is rotatably disposed within the tubular member
about a second longitudinal axis, wherein the second longitudinal axis is parallel to the central longitudinal axis, wherein
the threaded portion is configured to engage the teeth of the pivotable prism, wherein the threaded shaft is configured to
rotate about the second longitudinal axis within the tubular member in response to rotation of the user input feature to cause
pivoting of the pivotable prism about a third axis, wherein the third axis is perpendicular to a plane bisecting the elongate
tubular member, wherein the plane is parallel to the central longitudinal axis.

US Pat. No. 9,265,407

ENDOSCOPIC METHODS AND DEVICES FOR TRANSNASAL PROCEDURES

Acclarent, Inc., Menlo P...

1. A method for positioning a working device at a desired location within the ear, nose, throat or cranium of a human or animal
subject, said method comprising the steps of:
(A) inserting an endoscope into a first channel of a guide device, wherein the first channel comprises a first tube including
a first outer wall and a first inner wall defining a first lumen;

(B) inserting the guide device, with the endoscope inserted in the first channel thereof, into or through a nostril of the
subject so as to guide the insertion of the guide device using the endoscope;

(C) inserting the working device into a second channel of the guide device, wherein the working device includes a guidewire,
wherein the second channel comprises a second tube including a second outer wall and a second inner wall defining a second
lumen, wherein the second tube is disposed alongside the first tube such that a portion of the first outer wall is adjacent
to a portion of the second outer wall, wherein the second channel includes a first portion that extends at an angle relative
to the first channel and a second portion that extends parallel to the first channel, wherein the first channel and the second
channel are angularly fixed relative to one another;

(D) advancing the endoscope relative to the first channel such that an end of the endoscope exits from a distal end of the
guide device;

(E) using the endoscope to view, guide or verify the positioning of the guide device and/or the guidewire;
(F) advancing a second working device over the guidewire; and
(G) treating the desired location by dilating anatomical structure at the desired location.

US Pat. No. 9,579,448

BALLOON DILATION CATHETER SYSTEM FOR TREATMENT AND IRRIGATION OF THE SINUSES

Acclarent, Inc., Irvine,...

1. A medical device for accessing, dilating and irrigating a sinus, the device comprising:
a handle useful for single-handed operation of the medical device, said handle having a proximal end, a distal end and a handle
body between the proximal end and the distal end;

a sinus guide catheter attached to said handle distal end;
a guiding element for accessing the sinus; and
a balloon dilation catheter for dilating and irrigating the sinus wherein the balloon dilation catheter comprises an inflation
lumen, a guiding element lumen and an irrigation lumen;
wherein a balloon catheter movement mechanism and a guiding element movement mechanism are slidable along the handle for single
handed movement of the guiding element and balloon catheter to access, dilate and irrigate the sinus without removing the
medical device from the sinus, and wherein the guiding element movement mechanism and the balloon catheter movement mechanism
are longitudinally aligned and the balloon catheter movement mechanism is located on top of the guiding element movement mechanism
and is configured to slide over the guiding element movement mechanism.

US Pat. No. 9,572,480

METHODS AND DEVICES FOR FACILITATING VISUALIZATION IN A SURGICAL ENVIRONMENT

Acclarent, Inc., Irvine,...

1. A quick release connector for use with an illuminating guidewire, said quick release connector comprising:
(a) a main body having a proximal end portion and a distal end portion;
(b) a channel in said distal end portion and opening to a distal end of said main body, said channel configured and dimensioned
to slidably receive a proximal end portion of the illuminating guidewire; and

(c) a quick release locking mechanism comprising a locking arm, wherein said locking arm extends through said main body into
said channel and is movable relative to said channel, wherein said locking arm is configured to assume a locked position and
an unlocked position, wherein when said locking arm is in said unlocked position, said locking arm is at least partially retracted
from said channel for receiving the proximal end portion of the illuminating guidewire in said channel, and wherein when said
locking arm is in said locked position, said locking arm extends into said channel and is configured to engage the proximal
end portion of the illuminating guidewire in said channel for releasable connecting the illuminating guidewire in said channel.

US Pat. No. 9,408,756

NASAL FLUID MANAGEMENT DEVICE

Acclarent, Inc., Irvine,...

1. An apparatus comprising:
(a) a body, wherein the body comprises:
(i) a proximal end,
(ii) a distal end,
(iii) an absorbent material extending from the proximal end toward the distal end, and
(iv) a non-porous region located at the distal end, wherein the non-porous region is configured to prevent fluid from passing
through the distal end of the body,

wherein the body is configured to be disposed within an anatomical passageway, wherein the body is configured to expand to
an expanded state, wherein the body is configured to absorb fluid to thereby expand the body to the expanded state, wherein
the absorbent material of the body is configured to bear against an inner wall of the anatomical passageway in the expanded
state; and

(b) a conduit in fluid communication with the body, wherein the conduit has a suction opening positioned within the absorbent
material, wherein the conduit is operable to draw fluid away from the absorbent material via the suction opening.

US Pat. No. 9,370,649

DEVICES, SYSTEMS AND METHODS USEABLE FOR TREATING SINUSITIS

Acclarent, Inc., Irvine,...

1. A method of treating a human or animal subject, the method comprising:
(a) inserting an endoscope into a nostril of the human or animal subject;
(b) inserting at least one tool into the nostril of the human or animal subject, wherein the tool is configured to perform
a maneuver within a field of view of the endoscope;

(c) inserting a balloon catheter into the nostril of the human or animal subject, wherein the balloon catheter comprises:
(i) a catheter shaft,
(ii) a balloon mounted on the catheter shaft, wherein the balloon is configured to be positioned within a passageway associated
with a paranasal sinus in an unexpanded state, wherein the balloon is expandable to thereby dilate the passageway,

(iii) at least one flexible region configured to enable the balloon catheter to perform a maneuver outside the field of view
of the endoscope, and

(iv) at least one position indicating element operable to indicate positioning of the balloon in the passageway;
(d) using the tool to perform a maneuver within the field of view of the endoscope; and
(e) using the balloon catheter to perform a maneuver outside the field of view of the endoscope.

US Pat. No. 9,861,793

COREWIRE DESIGN AND CONSTRUCTION FOR MEDICAL DEVICES

Acclarent, Inc., Irvine,...

1. A method for positioning a working device at a desired location within a human or animal subject, the method comprising:
(a) inserting a guidewire into a nostril of the subject, the guidewire comprising:
(i) a core wire, comprising:
(A) a proximal portion comprising a distal end and a proximal tip,
(B) a cylindraceous distal tip, and
(C) a single, continuous flattened portion having a first end and a second end, wherein the flattened portion includes a uniform
cross section, wherein the first end of the flattened portion contacts the distal end of the proximal portion, wherein the
second end of the flattened portion contacts the distal tip, wherein the flattened configuration imparts resilience to at
least the distal tip, wherein the flattened portion is wider than the proximal portion, when viewed from at least one view,
and

(ii) a flexible outer member surrounding at least a portion of the core wire, wherein the outer member comprises a distal
end, wherein the distal end of the outer member includes an atraumatic tip, wherein at least the core wire comprises a preformed
bend at the flattened portion thereof; and

(b) directing the guidewire further into the nostril such that the distal tip is adjacent to a target structure;
(c) inserting a balloon catheter comprising an expandable balloon over the guidewire such that the expandable balloon is adjacent
to the target structure; and

(d) expanding the expandable balloon to thereby dilate the target structure.

US Pat. No. 9,623,213

UNCINATE PROCESS SUPPORT FOR ETHMOID INFUNDIBULUM ILLUMINATION

Acclarent, Inc., Irvine,...

1. An apparatus comprising:
(a) an elongate member, wherein the elongate member defines a longitudinal axis; and
(b) a dilation assembly slidable relative to the elongate member, wherein the dilation assembly comprises:
(i) an inflatable dilator, wherein the inflatable dilator is operable to expand from a non-inflated state to an inflated state,
wherein the inflatable dilator is configured to slide along a path defined by the elongate member,

(ii) a constraining member secured to the inflatable dilator, wherein the constraining member is positioned and configured
to restrict expansion of the inflatable dilator in a first direction transverse to the longitudinal axis while permitting
expansion of the inflatable dilator in a second direction transverse to the longitudinal axis, wherein the first direction
is opposite to the second direction, and

(iii) a conduit in fluid communication with the dilator.

US Pat. No. 9,554,817

MEDICAL DEVICE AND METHOD FOR TREATMENT OF A SINUS OPENING

Acclarent, Inc., Irvine,...

1. A medical device for the treatment of a sinus opening, the medical device comprising:
a handle with:
a proximal end;
a distal end; and
a longitudinal axis along the length of the handle;
a guide wire;
a guide catheter attached to the distal end of the handle, the guide catheter having a guide catheter lumen;
a guide wire movement mechanism operatively disposed on the handle;
a balloon catheter;
and
a balloon catheter movement mechanism operatively disposed on the handle;
wherein the handle and the guide catheter lumen are configured for operatively accepting the guide wire and the balloon catheter;
and

wherein the guide wire movement mechanism is configured for advancement and retraction of the guide wire disposed at least
partially in the handle and the guide catheter lumen through the handle and the guide catheter lumen by user operation of
the guide wire movement mechanism; and

wherein the guide wire movement mechanism includes an integrated guide wire locking and rotation mechanism configured for
rotation of the guide wire by rotation of the guide wire locking and rotation mechanism relative to the guide wire movement
mechanism and the handle, and for securely locking and unlocking the guide wire to the guide wire movement mechanism; and

wherein the guide wire movement mechanism comprises a proximal end and a distal end and a longitudinal axis between the proximal
end and the distal end, said guide wire movement mechanism configured to direct the guide wire along the longitudinal axis
of guide wire movement mechanism from the proximal end to the distal end of the guide wire movement mechanism and in a direction
that is not along the longitudinal axis into the handle distal to the distal end of the guide wire movement mechanism; and

wherein the balloon catheter movement mechanism is configured for advancement and retraction of the balloon catheter disposed
at least partially in the handle and in the guide catheter lumen through the handle and guide catheter lumen by user operation
of the balloon catheter movement mechanism.

US Pat. No. 9,468,362

ENDOSCOPIC METHODS AND DEVICES FOR TRANSNASAL PROCEDURES

Acclarent, Inc., Irvine,...

1. A method for positioning a guide device configured for delivering at least one working device therethrough to deliver a
working end portion of the at least one working device to a desired location within the ear, nose, throat or cranium of a
human or animal patient, wherein the guide device defines a longitudinal axis and comprises an elongated shaft including a
first tube defining a first channel and a second tube defining a second channel, wherein the second tube extends along the
first tube, wherein the first tube comprises a first distal tip and the second tube comprises an angled second distal tip
disposed at an oblique angle relative to the longitudinal axis, wherein the angled second distal tip extends distally from
the second tube to at least the first distal tip, the method comprising the steps of:
(a) inserting an endoscope into or through the first channel of the guide device;
(b) inserting the guide device into an internal space of the patient;
(c) advancing the endoscope relative to the first channel such that an end of the endoscope traverses the angled second distal
tip of the second tube; and

(d) viewing the internal space via the endoscope to guide positioning and delivery of the guide device to an intended location
in the patient.

US Pat. No. 9,241,834

DEVICES, SYSTEMS AND METHODS FOR TREATING DISORDERS OF THE EAR, NOSE AND THROAT

Acclarent, Inc., Menlo P...

1. A medical device for accessing a paranasal sinus structure of a patient, comprising:
(a) a handle;
(b) a probing element extending outwardly from said handle to a distal end, said probing element having a distal region terminating
in said distal end, wherein the distal end region is malleable so as to be adapted to allow a user to shape the distal end
region to match the patient's specific anatomy; and

(c) a working device preloaded and slidably positioned over the probing element, the working device being slidable relative
to the probing element between a retracted position and an extended position.

US Pat. No. 9,084,876

IMPLANTABLE DEVICES AND METHODS FOR DELIVERING DRUGS AND OTHER SUBSTANCES TO TREAT SINUSITIS AND OTHER DISORDERS

Acclarent, Inc., Menlo P...

1. A method for delivering a substance to a location within a paranasal sinus or nasal cavity, or an opening into a paranasal
sinus or nasal cavity of a human or animal subject to treat a disorder, said method comprising the steps of:
obtaining or providing a device that comprises:
a self-expanding structure comprising a plurality of interconnected elongate members which comprise biodegradable material
combined with a therapeutic substance, wherein said self-expanding structure is resiliently biased to assume a radially expanded
configuration, such that said self-expanding structure is initially constrainable in a radially collapsed configuration from
which it will self-expand to the radially expanded configuration when unconstrained; and

an introducer device comprising a tube having a distal end opening and a lumen and a pusher, said self-expanding structure
being loaded in the collapsed configuration within said lumen distal to said pusher, wherein the tube is configured to hold
the self-expanding structure in the collapsed configuration, against a resilient bias of the self-expanding structure, while
the self-expanding structure is loaded into the tube;

inserting the introducer device into the nose to a position where its distal end opening is aligned with the paranasal sinus
or nasal cavity or the opening into the paranasal sinus or the opening into the nasal cavity;

causing the pusher to advance, thereby delivering the self-expanding structure out of the distal end opening of the introducer
device so that the self-expanding structure self-expands within the paranasal sinus or nasal cavity or the opening into the
paranasal sinus or the opening into the nasal cavity; and

leaving the self-expanding structure in place for a period of time over which the biodegradable material degrades and wherein
the therapeutic substance is released.

US Pat. No. 9,554,691

ENDOSCOPIC METHODS AND DEVICES FOR TRANSNASAL PROCEDURES

Acclarent, Inc., Irvine,...

1. A system comprising:
(a) a guide catheter having a distal end, wherein the distal end is configured to be inserted into a nostril of a patient,
wherein the distal end of the guide catheter further comprises a curved portion; and

(b) an illuminating guidewire slidably disposed within the guide catheter, the illuminating guidewire comprising:
(i) a length sufficient to extend from exterior the patient through the patient's nasal cavity and into sinuses of the patient,
(ii) a flexible distal end portion comprising a coil,
(iii) a plurality of illumination fibers extending to and within said distal end portion, wherein said plurality of illumination
fibers are configured to emit illuminating light of a character to provide transillumination of light from within the patient's
sinuses to provide a glowing region on skin of the patient without causing trauma to tissue,

(iv) a proximal end portion comprising:
(A) at least one connecting structure configured to connect at least one illumination fiber of the plurality of illumination
fibers with a power source, and

(B) an external casing enclosing together at least a proximal portion of each of the illumination fibers, wherein a distal
end of said at least one connecting structure is fixed to a proximal end of said external casing, wherein a proximal portion
of the coil is at least partially fixed to the external casing, and

(v) at least one core wire coil support, longitudinally disposed within said coil, said at least one core wire coil support
comprising a structure distinct from the plurality of illumination fibers, at least a portion of each core wire coil support
fixed to said coil.

US Pat. No. 9,308,361

IMPLANTABLE DEVICES AND METHODS FOR TREATING SINUSITIS AND OTHER DISORDERS

Acclarent, Inc., Irvine,...

1. A method for treating a human or animal subject, said method comprising the steps of:
(a) forming an opening into at least one ethmoid air cell;
(b) providing or obtaining an implantable device, wherein the implantable device comprises:
(i) a self-expanding member,
(ii) a connector,
(iii) a shaft connecting the self-expanding member and the connector, and
(iv) a delivery sheath having a lumen and a distal end,
wherein the shaft is positioned within the lumen of the delivery sheath
(c) advancing the distal end of the delivery sheath into a nose of the subject to a location adjacent to the opening formed
in at least one ethmoid air cell, wherein the self-expanding member is in a constrained configuration within the lumen of
the delivery sheath during the act of advancing the distal end of the delivery sheath;

(d) separating the delivery sheath from the self-expanding member, thereby releasing the self-expanding member from the delivery
sheath such that the self-expanding member expands to an expanded configuration wherein the self-expanding member contacts
with anatomy surrounding the opening formed in the at least one ethmoid air cell;

(e) separating a distal portion of the shaft from a proximal portion of the shaft at a point between the self-expanding member
and the connector;

(f) removing the delivery sheath from the shaft; and
(g) allowing the implantable device to remain implanted within the opening formed in the at least one ethmoid air cell.

US Pat. No. 10,016,581

BALLOON CATHETER WITH TACTILE FEEDBACK FEATURES AND REINFORCED LUMEN

Acclarent, Inc., Irvine,...

1. A catheter system comprising:(a) a guide catheter comprising:
(i) a proximal end,
(ii) a distal end,
(iii) an interior surface,
(iv) an exterior surface, and
(iii) a first tactile marker extending inwardly from the interior surface, wherein the tactile marker is located closer to the distal end than the proximal end;
(b) a working device configured for insertion into the proximal end of the guide catheter and comprising an expandable member configured to pass through the distal end of the guide catheter; and
(c) a second tactile marker extending outwardly from the working device, wherein the second tactile marker is longitudinally fixed relative to the working device, wherein the second tactile marker is configured to engage the first tactile marker and thereby provide tactile feedback in response to passage of the second tactile marker past the first tactile marker during longitudinal movement of the working device through the guide catheter.

US Pat. No. 9,962,530

INFLATOR FOR DILATION OF ANATOMICAL PASSAGEWAY

ACCLARENT, INC., Irvine,...

1. An apparatus, comprising:(a) a body, wherein the body includes a first locking feature;
(b) a reservoir having a variable fluid capacity;
(c) a plunger assembly, wherein the plunger assembly is movable relative to the body to selectively vary the fluid capacity of the reservoir, wherein the plunger assembly includes:
(i) a housing member,
(ii) a reciprocating member configured to translate relative to the housing member in response to manual actuation of the reciprocating member, and
(iii) a second locking member configured to selectively engage the first locking feature in response to manual actuation of the reciprocating member to selectively maintain a location of the plunger assembly at a plurality of selected longitudinal positions in relation to the body, wherein the second locking member is configured to selectively disengage the first locking feature at the plurality of selected longitudinal positions in relation to the body in order to selectively allow linear translation of the plunger assembly relative to the body to selectively vary the fluid capacity of the reservoir,
wherein the first locking feature and the second locking member are configured to selectively engage each other by one of the first locking feature or the second locking member moving linearly along a path that is transverse to a longitudinal axis defined by the plunger assembly, wherein the reciprocating member is resiliently biased to drive the second locking member into engagement with the first locking feature.

US Pat. No. 9,713,700

APPARATUS AND METHODS FOR DILATING AND MODIFYING OSTIA OF PARANASAL SINUSES AND OTHER INTRANASAL OR PARANASAL STRUCTURES

Acclarent, Inc., Irvine,...

1. A device for treating a patient, the device comprising:
(a) an elongate shaft comprising an open proximal end, an open distal end including a tip, an exterior surface, and an outer
diameter sized to allow the shaft to be inserted into a patient's nose, wherein at least a portion of the shaft extends along
an axis;

(b) a treatment member coupled with the shaft at or near the tip, wherein the shaft includes a flexible portion, wherein at
least a portion of the flexible portion is coincident with the treatment member such that at least a portion of the tip is
deflectable between a first position where the tip is oriented at a first angle relative to the axis, and a second position
where the tip is oriented at a second angle relative to the axis;

(c) a steering wire coupled with the treatment member such that a portion of the steering wire can be retracted into the treatment
member and advanced from the treatment member;

(d) a handle extending from the proximal end of the elongate shaft; and
(e) a control element movably coupled with the handle and the steering wire, wherein the control element is movable in a first
direction to thereby retract the portion of the steering wire, wherein the control element is movable in a second direction
to thereby advance the portion of the steering wire.

US Pat. No. 9,700,326

SHAPEABLE GUIDE CATHETERS AND RELATED METHODS

Acclarent, Inc., Irvine,...

1. A method for dilating an opening in a head of a human or animal subject with a shapeable guide member, wherein the shapeable
guide member includes a shapeable region having a malleable member and a tubular member, the method comprising:
(a) bending the malleable member of the shapeable region to a desired shape to facilitate advancement of a distal end of the
guide member to a desired location, wherein the malleable member is attached to the tubular member, wherein the shapeable
region is located closer to a distal end of the guide member than to a proximal end of the guide member, wherein the malleable
member of the shapeable region substantially retains the desired shape after bending and holds the shapeable region in the
desired shape, wherein the act of bending is performed by a human operator;

(b) inserting the guide member, distal end first, into a head of the subject to position the distal end of the guide member
at or near the opening in the head of the subject;

(c) advancing a balloon along the guide member to position the balloon within the opening in the head of the subject; and
(d) expanding the balloon within the opening in the head of the subject to thereby dilate the opening.

US Pat. No. 9,615,959

UNCINATE PROCESS SUPPORT FOR ETHMOID INFUNDIBULUM ILLUMINATION

Acclarent, Inc., Irvine,...

1. A method of maintaining dilation of the ethmoid infundibulum in a human patient, the method comprising:
(a) dilating the ethmoid infundibulum in a human patient, wherein the act of dilating the ethmoid infundibulum comprises:
(i) positioning an inflatable dilator within the ethmoid infundibulum,
(ii) asymmetrically inflating the dilator out from the longitudinal axis of the dilator within the ethmoid infundibulum;
wherein the act of asymmetrically inflating the dilator within the ethmoid infundibulum results in movement of the uncinate
process thereby creating a dilated ethmoid infundibulum; and

(b) installing a support member to maintain dilation of the dilated ethmoid infundibulum towards the uncinated process.

US Pat. No. 9,610,428

DEVICES, SYSTEMS AND METHODS USEABLE FOR TREATING FRONTAL SINUSITIS

Acclarent, Inc., Irvine,...

1. A method for dilating a frontal recess in a human or animal subject with a dilation catheter, the dilation catheter comprising
a catheter shaft, a dilator positioned along a distal portion of the catheter shaft and having a sufficient length to extend
through the frontal recess, the method comprising:
(a) inserting a guide into a head of the subject;
(b) advancing the guide to the frontal recess, then stopping advancement of the guide when a distal portion of the guide is
positioned within or adjacent to the frontal recess;

(c) advancing the dilation catheter relative to the guide to position the dilator within the frontal recess; and
(d) expanding the dilator, wherein expansion of the dilator results in dilation of the frontal recess and at least some breakage
of bone adjacent to the frontal recess.

US Pat. No. 9,433,763

SINUS WALL IMPLANT

Acclarent, Inc., Irvine,...

1. An apparatus, comprising:
(a) an absorbent body, wherein the absorbent body comprises a wicking feature;
(b) a non-permeable feature coupled with the absorbent body, wherein the non-permeable feature and at least a portion of the
absorbent body are configured to fit in an opening in a paranasal sinus wall; and

(c) a port feature extending through the absorbent body, wherein the port feature defines an open lumen, wherein the wicking
feature extends outwardly relative to the port feature, wherein the port feature comprises a tubular structure with a longitudinal
axis, and wherein the wicking feature extends obliquely relative to the longitudinal axis.

US Pat. No. 9,278,202

APPARATUS FOR SENSING AND RESPONDING TO STRAIN IN AIRWAY DILATION SHAFT

Acclarent, Inc., Irvine,...

1. An apparatus comprising:
(a) a balloon catheter defining a lumen operable to communicate fluid;
(b) an inflatable balloon disposed on the distal end of the balloon catheter, wherein the inflatable balloon is in fluid communication
with the lumen, wherein the inflatable balloon is positionable within a passageway within a patient;

(c) a force sensor associated with one or both of the balloon catheter or the inflatable balloon, wherein the force sensor
is configured to sense force associated one or both of the balloon catheter or the inflatable balloon;

(d) a balloon pressure reduction feature operable to reduce fluid pressure in the balloon; and
(e) a control module in communication with the balloon pressure reduction feature, wherein the control module is further in
communication with the force sensor, wherein the control module is configured to receive force data from the force sensor
and compare the force data to a predetermined threshold value.

US Pat. No. 9,220,879

DEVICES, SYSTEMS AND METHODS USEABLE FOR TREATING SINUSITIS

Acclarent, Inc., Menlo P...

1. A method for treating an anatomical passageway within a patient's sino-nasal anatomy, the method comprising:
(a) advancing a guide device into the patient's head to position a distal end of the guide device near or within an anatomical
passageway within the patient's sino-nasal anatomy;

(b) advancing a balloon catheter over or through the guide device to position a balloon of the catheter within the anatomical
passageway;

(c) remodeling the anatomical passageway by expanding the balloon within the anatomical passageway to enlarge the anatomical
passageway;

(d) introducing irrigation fluid into the patient's sino-nasal anatomy using an irrigation device; and
(e) removing the balloon catheter, irrigation device and guide device from the head.

US Pat. No. 9,155,492

SINUS ILLUMINATION LIGHTWIRE DEVICE

Acclarent, Inc., Menlo P...

1. A proximal assembly of an illuminating guidewire comprising: a first tube having a lumen extending therethrough; an elongate
flexible housing having a lumen extending therethrough, the housing being received within the first tube but not extending
proximally beyond the proximal end of the first tube; a second tube having a lumen therethrough and positioned within the
lumen of the first tube at the proximal end and extending beyond the proximal end of the first tube, but not beyond the distal
end of the first tube; at least one illuminating fiber extending through and proximally beyond the lumen of the housing and
the lumen of the first tube and into the lumen of the second tube; and wherein the housing is not fixably attached to the
first tube and is free to rotate within the first tube and the distal end of the second tube and the proximal end of the first
tube are fixably attached.

US Pat. No. 10,034,681

FLUID COMMUNICATION FEATURES FOR EUSTACHIAN TUBE DILATION INSTRUMENT

Acclarent, Inc., Irvine,...

1. A system for dilating a Eustachian tube (ET) of a patient, the system comprising:(a) a guide member, wherein the guide member comprises a shaft having a proximal portion and a distal portion, wherein the guide member further comprises a bend at the distal portion, wherein the bend is configured to provide access to an opening in the ET; and
(b) a dilation catheter, wherein the dilation catheter is slidable relative to the guide member, the dilation catheter comprising:
(i) a shaft including a proximal portion and a distal portion,
(ii) an expandable element disposed at the distal portion of the shaft, and
(iii) an actuator disposed at the proximal portion of the shaft, wherein the actuator comprises:
(A) a grasping portion, and
(B) an actuating member, wherein the expandable element is configured to transition to an expanded configuration in response to actuation of the actuating member, wherein the actuating member is resiliently biased to transition the expandable element to an unexpanded configuration,
wherein the grasping portion and actuating member are configured to be grasped in a single hand of an operator to enable the operator to advance the dilation catheter relative to the guide member and to transition the expandable element between expanded and unexpanded configurations with the single hand.

US Pat. No. 9,681,988

SILENT EFFUSION REMOVAL

Acclarent, Inc., Irvine,...

1. A method for clearing effusion from a middle ear containing the effusion, the method comprising:
(a) applying an ear device comprising a wicking tip to the effusion inside the middle ear, wherein the wicking tip has a proximal
end and a distal end and comprises an absorbent material;

(b) wicking the effusion from the middle ear, wherein the act of wicking the effusion comprises absorbing fluid from the middle
ear via the distal end of the wicking tip; and

(c) sealing and pressurizing the effusion inside the ear canal, the ear device regulating the amount of pressure inside the
ear canal to aid in the act of wicking the effusion, wherein the wicking tip regulates turbulence to reduce noise caused by
wicking the effusion.

US Pat. No. 9,629,684

APPARATUS AND METHOD FOR TREATMENT OF ETHMOID SINUSITIS

Acclarent, Inc., Irvine,...

1. An apparatus, wherein the apparatus comprises:
(a) a first cutting member, wherein the first cutting member comprises a helical blade and an engagement portion, wherein
at least a portion of the helical blade is configured to be advanced through a sinus wall of a patient, wherein the engagement
portion projects distally from at least a portion of the helical blade and is configured to engage the sinus wall and thereby
resist further advancement of the helical blade; and

(b) a second cutting member coaxially positioned about the first cutting member, wherein the second cutting member comprises
a sharp distal edge, wherein the second cutting member is operable to translate distally relative to the first cutting member
to selectively cover at least a portion of the helical blade.

US Pat. No. 9,615,775

METHODS AND DEVICES FOR OSTIUM MEASUREMENTS

Acclarent, Inc., Irvine,...

26. A method for measuring the size of a paranasal sinus ostium of a patient, the method comprising the steps of:
(a) inserting a distal end portion of a paranasal sinus ostium measuring device internally into a patient, locating the paranasal
sinus ostium to be measured with the distal end portion of the paranasal sinus ostium measuring device;

(b) positioning the distal end portion of the paranasal sinus ostium measuring device within the patient to enable the target
paranasal sinus ostium to be measured;

(c) determining the paranasal sinus ostium size of the targeted paranasal sinus ostium by the paranasal sinus ostium measuring
device, wherein the act of determining the paranasal sinus ostium size comprises determining the diameter of the paranasal
sinus ostium by identifying a diameter of a portion of the distal end portion of the paranasal sinus ostium measuring device
which contacts or closely approximates the walls of the paranasal sinus ostium, wherein the portion of the distal end portion
of the paranasal sinus ostium measuring device which contacts the walls of the paranasal sinus ostium is a tapered mandrel
including a proximal portion and a distal end, the distal end having a tip, the tip being narrower in width than the proximal
portion;

(d) withdrawing the paranasal sinus ostium measuring device from the targeted paranasal sinus ostium;
(e) subsequent to withdrawing the paranasal sinus ostium measuring device, selecting a dilator device based upon the determined
size of the targeted paranasal sinus ostium; and

(f) dilating the targeted paranasal sinus ostium with the selected dilator device, wherein the act of dilating comprises remodeling
bony structure that surrounds or is adjacent to the targeted paranasal sinus ostium.

US Pat. No. 10,085,889

SYSTEM AND METHOD FOR TREATMENT OF EUSTACHIAN TUBE FROM ORAL APPROACH

Acclarent, Inc., Irvine,...

1. A method of dilating a first Eustachian tube (ET) of a patient using a dilation catheter, wherein the method comprises:(a) directing the dilation catheter into the mouth of the patient;
(b) advancing the dilation catheter into a first ET on one side of the patient's head while a proximal portion of the dilation catheter is disposed in the mouth of the patient; and
(c) expanding an expandable member uniformly in a radial direction to thereby dilate the first ET, wherein the circumference of the expandable member is in contact with the circumference of the first ET.

US Pat. No. 9,999,752

MULTI-CONDUIT BALLOON CATHETER

Acclarent, Inc., Irvine,...

1. A method of treating a paranasal sinus of a patient using an elongate member, wherein the elongate member comprises a shaft and a treatment feature disposed on the shaft, wherein at least a distal portion of the elongate member is configured to be laterally bendable and inserted into a nostril of the patient, the method comprising:(a) identifying an anatomical structure associated with the paranasal sinus of the patient;
(b) laterally bending at least the distal portion of the elongate member relative to a proximal portion of the elongate member during a medical procedure, with the bending being performed according to the identified anatomical structure such that the distal portion is disposed relative to the proximal portion of the elongate member at a bend angle;
(c) inserting the distal portion of the elongate member into a nostril of the patient, wherein the distal portion maintains the formed bend angle during the act of inserting;
(d) directing the distal portion of the elongate member via the bend angle such that at least the distal portion is within or adjacent to one of the paranasal sinuses, wherein the distal portion maintains the formed bend angle during the act of directing; and
(e) treating the paranasal sinus using the treatment feature.

US Pat. No. 9,962,531

INFLATOR FOR DILATION OF ANATOMICAL PASSAGEWAY

ACCLARENT, INC., Irvine,...

1. An apparatus, comprising:(a) a body, wherein the body includes a first locking feature, wherein the first locking feature comprises a helical groove defined by the body;
(b) a plunger slidably disposed in the body, wherein the plunger and body cooperate to define a fluid capacity, wherein the plunger is movable relative to the body to vary the fluid capacity, wherein the plunger is rotatable relative to the body to selectively vary the fluid capacity;
(c) a second locking feature secured to the plunger, wherein the second locking feature is configured to selectively engage the first locking feature to selectively maintain a position of the plunger at a selected one of a plurality of discrete positions in relation to the body, wherein the second locking feature comprises a ball configured to selectively engage the helical groove, wherein the ball is configured to travel linearly along a path that is transverse to a longitudinal axis defined by the plunger to selectively engage the helical groove; and
(d) a translating member comprising an actuator, wherein the translating member is configured to translate relative to the plunger from a first position to a second position in response to manual actuation of the actuator, wherein the translating member is configured to translate relative to the plunger to selectively engage and disengage the ball with the helical groove, wherein the translating member is resilient biased to drive the ball into engagement with the helical groove;
wherein the first and second locking features are configured to engage each other in response to the translating member transitioning from the first position to the second position.

US Pat. No. 9,750,401

PARANASAL OSTIUM FINDER DEVICES AND METHODS

Acclarent, Inc., Irvine,...

1. An apparatus, comprising:
(a) an elongated shaft, wherein the elongated shaft comprises:
(i) a distal end,
(ii) a proximal end, and
(iii) a curved region between the proximal and distal ends;
(b) a handle joined to the proximal end;
(c) a longitudinal interior channel extending through the shaft and the handle;
(d) an extensible and retractable guide wire movably mounted within the interior channel;
(e) a probe tip joined to an end of the guide wire, wherein the probe tip is configured to fit through a passageway in a paranasal
cavity;

(f) an actuator element associated with the handle and mechanically coupled to the guide wire, wherein the guide wire is extensible
and retractable according to adjustment of the actuator element relative to the handle; and

(g) an expandable dilator slidably disposed around a portion of an exterior of the elongate shaft; wherein the actuator element
is slidably mounted within a slot on the handle; and wherein the shaft further comprises an elongated tubular inner sheath
and an elongated tubular outer sheath, the inner sheath positioned within the outer sheath.

US Pat. No. 10,071,191

NASAL FLUID MANAGEMENT DEVICE

Acclarent, Inc., Irvine,...

1. An apparatus comprising:(a) a body, wherein the body comprises an absorbent material, wherein the body is configured to be disposed within an anatomical passageway, wherein the body is configured to expand to an expanded state, wherein the body is configured to absorb fluid to thereby expand the body to the expanded state, wherein an outer perimeter of the body is configured to contact an inner wall of the anatomical passageway in the expanded state; and
wherein the body has a closed distal end
(b) a conduit in fluid communication with the body, wherein the conduit includes a distal end and a proximal end, wherein the distal end comprises an oblique tip, wherein the distal end of the conduit is disposed within the body such that the oblique tip and the body define a gap, wherein the conduit is operable to draw fluid away from the absorbent material via the distal end of the conduit.

US Pat. No. 9,820,688

SINUS ILLUMINATION LIGHTWIRE DEVICE

Acclarent, Inc., Irvine,...

1. An illuminating guidewire device for use at a site within a patient's body, the guidewire device comprising:
an elongate flexible housing having a proximal end, a distal end, and a lumen extending through the housing from the proximal
end to the distal end, wherein the distal end is configured to be passed into a nostril of the patient and through an opening
into a paranasal sinus of the patient, and wherein the elongate flexible housing is configured to have a length sufficient
to extend from the distal end disposed in the paranasal sinus through the nostril to the proximal end disposed outside of
the patient;

at least one illuminating fiber extending through the lumen of the housing;
a connector having a channel, wherein the connector is sized and configured to slidably receive the elongate flexible housing
within the channel such that the connector is coupled with the proximal end of the elongate housing and a proximal end of
the at least one illuminating fiber, the connector including a sliding member attached to the elongate housing so that the
proximal end of the housing can move longitudinally within the connector; and

a core wire disposed in the housing, wherein the core wire longitudinally terminates at a proximal end and at a distal end;
wherein the proximal end of the at least one illuminating fiber is fixedly attached to the connector and extends into the
proximal end of the housing such that the housing can slide over the at least one illuminating fiber as the housing moves
longitudinally within the connector and the at least one illuminating fiber is stationary with respect to the connector; and

wherein the core wire is directly attached to the housing at two attachment points, wherein one of the attachment points is
located at or near the housing distal end and the other attachment point is located at or near a junction between the proximal
and distal ends of the housing, wherein the distal end of the core wire is secured at the attachment point at or near the
housing distal end and the proximal end of the core wire is secured at the attachment point located at or near the junction.

US Pat. No. 9,408,955

NASAL FLUID MANAGEMENT DEVICE

Acclarent, Inc., Irvine,...

1. An apparatus comprising:
(a) a body, wherein the body comprises an absorbent material, wherein the body is configured to be disposed within an anatomical
passageway, wherein the body is configured to expand to an expanded state, wherein the body is configured to absorb fluid
to thereby expand the body to the expanded state, wherein an outer perimeter of the body is configured to contact an inner
wall of the anatomical passageway in the expanded state, wherein the body defines a first distal recess and a second distal
recess, wherein the first distal recess is proximal in location relative to the second distal recess, wherein the first distal
recess is larger than the second distal recess; and

(b) a conduit in fluid communication with the body, wherein the conduit includes a distal end and a proximal end, wherein
the distal end of the conduit is disposed within the body, wherein the distal end of the conduit defines an oblique angle
such that a first portion of the distal end is more proximal in relation to a second portion of the distal end, wherein the
first portion of the distal end corresponds with the first distal recess defined by body, wherein the second portion of distal
end corresponds with the second distal recess defined by body, wherein the conduit is operable to draw fluid away from the
absorbent material via the distal end of the conduit;

wherein the body defines a gap at the distal end of the conduit, wherein the gap is enclosed by the body.

US Pat. No. 9,399,121

SYSTEMS AND METHODS FOR TRANSNASAL DILATION OF PASSAGEWAYS IN THE EAR, NOSE OR THROAT

Acclarent, Inc., Irvine,...

1. A system for dilating an opening in a paranasal sinus, the system comprising:
(a) an endoscope;
(b) a guide catheter comprising a proximal end and a distal end; and
(c) a balloon dilation catheter configured to be advanced through the guide catheter, the balloon dilation catheter comprising:
(i) a catheter shaft having:
(A) a longitudinal axis,
(B) an inflation lumen,
(C) a distal end,
(D) a proximal end,
(E) a proximal shaft section, wherein the proximal shaft section comprises:
(1) an outer tube,
(2) an inner tube within the outer tube, wherein the inner tube includes an inflation lumen, and
(3) a middle tube between the inner tube and the outer tube, and
(F) a distal shaft section, wherein the distal shaft section comprises:
(1) a distal portion of the middle tube, and
(2) a distal portion of the inner tube, and
(G) a tapered section between the proximal shaft section and the distal shaft section,
(ii) an inflatable balloon disposed on the distal shaft section in fluid communication with the inflation lumen, wherein a
distal end of the middle tube terminates within the inflatable balloon and the proximal end of the inflatable balloon is secured
to the outer surface of the middle tube,

(iii) a first proximal shaft marker disposed on the proximal shaft section and having a lighter color than the catheter shaft,
wherein the first proximal shaft marker is configured to be visualized directly at a location proximal to the proximal end
of the guide catheter to allow a user to approximate a position of the balloon relative to the guide catheter, and

(iv) a first distal shaft marker disposed on the distal shaft section proximal to a proximal end of the balloon and having
a lighter color than the catheter shaft, wherein the endoscope is configured to provide endoscopic visualization of the first
distal shaft marker to enable a user to approximate a position of the balloon relative to an opening of a paranasal sinus.

US Pat. No. 10,137,286

APPARATUS FOR BENDING MALLEABLE GUIDE OF SURGICAL INSTRUMENT

Acclarent, Inc., Irvine,...

1. An apparatus comprising:(a) a grounding member, wherein the grounding member comprises:
(i) a first grounding feature, wherein the first grounding feature is configured to engage a dilation instrument,
(ii) a bending channel, wherein the bending channel is configured to receive a malleable member of the dilation instrument, and
(iii) a fixed indicator; and
(b) an actuator, wherein the actuator is pivotably coupled with the grounding member, wherein the actuator is configured to pivot between a first angular position and a second angular position, wherein the actuator comprises:
(i) a bearing surface, wherein the bearing surface is configured to cooperate with the bending channel to thereby bend the malleable member of the dilation instrument as the actuator is pivoted relative to the grounding member, and
(ii) a first movable indicator configured to align with the fixed indicator at the first angular position, and
(iii) a second moveable indicator spaced away from the first movable indicator an angular distance such that the second movable indicator is configured to align with the fixed indicator at the second angular position.

US Pat. No. 9,999,433

APPARATUS AND METHOD TO SECURE TURBINATE TO NASAL SEPTUM

Acclarent, Inc., Irvine,...

1. A method of securing a turbinate to a nasal septum, the method comprising:(a) positioning an instrument in a nostril;
(b) piercing the turbinate and nasal septum;
(c) using the instrument to urge a barbed suture through the pierced turbinate and nasal septum such that at least one barb of the barbed suture passes from a first side of the nasal septum to a second side of the nasal septum; and
(d) medializing the turbinate against the nasal septum by urging the turbinate against the nasal septum;
wherein the at least one barb of the barbed suture engages the second side of the nasal septum and thereby holds the turbinate in a medialized state against the nasal septum.

US Pat. No. 9,999,437

METHOD AND APPARATUS FOR FORMING OPENING IN A SINUS WALL

Acclarent, Inc., Irvine,...

1. An instrument, comprising:(a) a shaft assembly, wherein the shaft assembly comprises:
(i) a first shaft member, wherein the first shaft member includes a distal cutting feature, and
(ii) a second shaft member, wherein the first shaft member is slidable relative to the second shaft member, wherein the second shaft member comprises a distal end portion having a distal edge;
wherein at least a distal portion of the shaft assembly is sized to fit through a nostril;
wherein the first shaft member is movable between a first position where the distal cutting feature is flush with or spaced proximally from the distal edge and a second position where the distal cutting feature extends distally relative to the distal edge;
(b) a body, wherein at least a portion of the shaft assembly extends distally relative to the body, wherein the body comprises a grounding feature, wherein the grounding feature includes a pair of prongs sized and positioned to engage one or more external anatomical structures adjacent to the nostril; and
(c) a dampener, wherein the dampener is configured to resist yet permit advancement of the first shaft member relative to the second shaft member.

US Pat. No. 9,955,852

GUIDE CATHETER WITH IMAGE CAPTURE AND LIGHT EMISSION FEATURES

ACCLARENT, INC., Irvine,...

1. A dilation catheter system, wherein the dilation catheter system comprises:(a) a guide member, wherein the guide member includes a shaft comprising a distal end and a proximal end, wherein the shaft defines a longitudinal axis;
(b) a dilation catheter movable relative to the guide member, wherein the dilation catheter comprises an expandable dilator, wherein the expandable dilator is sized to fit within one or both of a Eustachian tube or a passageway associated with a paranasal sinus; and
(c) a visualization assembly comprising an image sensor, wherein the image sensor is configured to provide visualization within anatomy of a patient, wherein the visualization assembly is integral with the guide member and extends from the guide member at a location that is proximate to the distal end of the shaft such that the visualization assembly is unitarily secured at a fixed orientation relative to the distal end of the shaft to provide a field of view that is fixed relative to the distal end of the shaft.

US Pat. No. 9,931,026

BALLOON CATHETER WITH IMAGE CAPTURE AND LIGHT EMISSION FEATURES

ACCLARENT, INC., Irvine,...

1. A dilation catheter system, wherein the dilation catheter system comprises:(a) a guide catheter, wherein the guide catheter includes:
(i) a proximal hub, and
(ii) a guide catheter shaft extending distally from the proximal hub, wherein the guide catheter shaft comprises a distal end and a proximal end, wherein the guide catheter shaft defines a longitudinal axis and a guide lumen extending between the distal and proximal ends; and
(b) a dilation catheter slidably disposed within the guide lumen, wherein the dilation catheter comprises:
(i) an elongate dilation catheter shaft having an outer diameter, wherein the dilation catheter shaft includes:
(A) a working lumen,
(B) an inflation lumen, wherein the inflation lumen is isolated and spaced from the working lumen,
(C) a first access lumen, wherein the first access lumen is isolated and spaced from the inflation lumen and the working lumen, and
(D) a second access lumen, wherein the second access lumen is isolated and spaced from the first access lumen, the inflation lumen, and the working lumen,
(ii) an expandable dilator coupled to the dilation catheter shaft, wherein the expandable dilator is sized to fit within one or both of a Eustachian tube or a passageway associated with a paranasal sinus, wherein an interior of the expandable dilator is in communication with the inflation lumen,
(iii) a bulbous distal tip arranged at a distal end of the dilation catheter shaft, wherein the bulbous distal tip is distal to the expandable dilator, wherein the bulbous distal tip is sized greater than the outer diameter of the dilation catheter shaft such that the bulbous distal tip is configured to prevent the dilation catheter from passing through an isthmus of a Eustachian tube, wherein the bulbous distal tip includes:
(A) an image sensor positioned in a distal end of the first access lumen, wherein the image sensor is configured to provide visualization within anatomy of a patient, wherein the image sensor is integral with the dilation catheter,
(B) a light emitting feature spaced from the image sensor and positioned in a distal end of the second access lumen, and
(C) first and second vent openings that communicate with the working lumen, wherein the vent openings and the working lumen are configured to permit passage of air between proximal and distal ends of the dilation catheter,
(iv) an electrical wire arranged within the first access channel, wherein the electrical wire is coupled to the image sensor, and
(v) one of a second electrical wire or an illumination fiber arranged within the second access channel and in operative communication with the light emitting feature.

US Pat. No. 9,814,379

METHODS AND APPARATUS FOR TREATING DISORDERS OF THE EAR NOSE AND THROAT

Acclarent, Inc., Irvine,...

1. A device useable to dilate an anatomical structure within the ear, nose or throat of a human or animal subject, said device
comprising:
a handpiece comprising a longitudinal slit formed in an exterior surface of the handpiece;
an elongate shaft that extends from the handpiece, wherein the elongate shaft has a distal end;
a dilator having a non-expanded configuration and an expanded configuration, wherein the longitudinal slit forms a structure
enabling the dilator to slide along the handpiece, wherein the dilator comprises a balloon; and

a trigger apparatus that is configured to move the dilator between the non-expanded configuration and the expanded configuration;
wherein the dilator is additionally moveable from a retracted position to an advanced position, wherein the dilator is proximally
positioned in relation to the distal end of the elongate shaft when the dilator is in the retracted position and wherein the
dilator is distally positioned in relation to the distal end of the elongate shaft when the dilator is in the advanced position;

wherein the device further comprises an actuator associated with the longitudinal slit formed in the exterior surface of the
handpiece;

wherein the actuator is moveable along the longitudinal slit to thereby move the dilator from the retracted position to the
advanced position; and

wherein the balloon is inflated and deflated by a pumping apparatus and wherein the trigger apparatus is configured to cause
the pumping apparatus to pump inflation fluid into or out of the balloon.

US Pat. No. 9,629,656

ADAPTER FOR ATTACHING ELECTROMAGNETIC IMAGE GUIDANCE COMPONENTS TO A MEDICAL DEVICE

Acclarent, Inc., Irvine,...

1. An adapter device useable for attaching an electromagnetic image guidance element to a medical device, a distal portion
of said medical device being insertable into the body of a human or animal subject during performance of the procedure and
a proximal portion of said medical device remaining outside of the subject's body during performance of that procedure, said
adapter device comprising:
(a) a body portion;
(b) a medical device holding portion having a longitudinal axis, wherein the medical device holding portion is configured
to firmly hold the proximal portion of the medical device relative to the longitudinal axis, wherein the medical device holding
portion defines a longitudinal plane which extends along the longitudinal axis, wherein the medical device holding portion
includes a fixed channel member unitarily coupled to the body portion; and

(c) an element holding portion comprising:
(i) a distal end,
(ii) a proximal end, and
(iii) an engagement element coupled to the body, wherein the engagement element is partially located between the distal end
of the element holding portion and the proximal end of the element holding portion;

wherein the engagement element is configured to directly hold the image guidance element firmly in a substantially fixed spatial
relation to at least one location of the medical device while allowing a portion of the medical device to be inserted into
the subject's body for purposes of the procedure.

US Pat. No. 9,381,270

MUCOSAL TISSUE DRESSING AND METHOD OF USE

Acclarent, Inc., Irvine,...

1. A method of treating a tonsil removal site after a tonsillectomy procedure, the method comprising:
(a) applying a dressing over the tonsil removal site, wherein one side of the dressing is adapted to adhere to a surgical
site and an opposite side of the dressing is adapted to provide abrasion resistance, the opposite side of the dressing embodying
material characteristics distinct from the one side of the dressing adapted to adhere, and further wherein the dressing includes
pores;

(b) polymerizing the dressing, wherein the act of polymerizing the dressing occurs after the dressing has been positioned
to cover at least a portion of the tonsil removal site; and

(c) releasing a drug from the dressing.

US Pat. No. 10,137,285

BALLOON DILATION SYSTEM WITH MALLEABLE INTERNAL GUIDE

Acclarent, Inc., Irvine,...

1. An apparatus comprising:(a) a handle assembly;
(b) a guide assembly extending distally from the handle assembly, wherein the guide assembly comprises:
(i) a malleable guide member having a distal end, wherein the malleable guide member is configured to assume and maintain a bent shape relative to a longitudinal axis of the guide assembly, and
(ii) a flexible guide member having a distal end, wherein the distal end of the flexible guide member is distal to the distal end of the malleable guide member, wherein the flexible guide member is slidably disposed positioned about the malleable guide member, wherein an entirety of the flexible guide member is translatable relative to the malleable guide member to advance the distal end of the flexible guide member relative to the distal end of the malleable guide member, wherein a portion of the flexible guide member is slidable along the malleable guide member; and
(c) a dilation catheter, wherein the dilation catheter is slidably disposed about the flexible guide member, wherein the flexible guide member and the dilation catheter are slidable independently of one another relative to the malleable guide member via the handle assembly.

US Pat. No. 10,124,154

CATHETERS WITH NON-REMOVABLE GUIDE MEMBERS USEABLE FOR TREATMENT OF SINUSITIS

Acclarent, Inc., Irvine,...

1. A method for dilating an opening of a paranasal sinus in a human or animal subject, said method comprising the steps of:A) providing a balloon catheter comprising a distal end, a balloon that extends along a longitudinal axis, and a non-removable guide member that extends from the distal end of the catheter, wherein the non-removable guide member is configured to bend relative to the longitudinal axis of the balloon;
B) trans-nasally inserting the balloon catheter and causing a distal portion of the non-removable guide member to pass through an opening of the paranasal sinus;
C) moving the balloon catheter to a location where the balloon is positioned within the opening of the paranasal sinus; and
D) inflating the balloon to cause dilation of the opening of the paranasal sinus.

US Pat. No. 10,123,685

APPARATUS AND METHOD TO ILLUMINATE AND ORIENT GUIDEWIRE

Acclarent, Inc., Irvine,...

1. An apparatus comprising:(a) a power source;
(b) a pulse generator in electrical communication with the power source, wherein the pulse generator is operable to generate an electric pulse;
(c) a light source in electrical communication with the pulse generator, wherein the light source is operable to turn on and off based on the electric pulse received from the pulse generator;
(d) a guidewire comprising a first proximal end and a first distal end;
(e) an optical fiber extending within the guidewire from the first proximal end toward the first distal end, wherein the optical fiber comprises a second proximal end and a second distal end;
(f) a connector operable to couple with the first proximal end of the guidewire, wherein the connector is operable to allow the light source to communicate with the optical fiber; and
(g) an electrical shutter in communication with the pulse generator, wherein the electrical shutter is configured to be in a closed state when the light source is turned off and is configured to be in an open state when the light source is turned on, wherein the electrical shutter is configured to permit a light from the light source and an ambient light from an ambient light source to pass through the electrical shutter in the open state, wherein the electrical shutter is configured to prevent the ambient light from passing through the electrical shutter in the closed state.

US Pat. No. 10,070,993

SYSTEM AND METHOD FOR TREATMENT OF EUSTACHIAN TUBE FROM MIDDLE EAR APPROACH

Acclarent, Inc., Irvine,...

1. A method of dilating a Eustachian tube (ET) of a patient using a dilation catheter, wherein the method comprises:(a) forming an opening in or adjacent to a tympanic membrane of the patient;
(b) directing a distal portion of the dilation catheter into an ear canal of the patient and through the opening in or adjacent to the tympanic membrane of the patient;
(c) advancing the distal portion of the dilation catheter through the middle ear;
(d) further advancing the distal portion of the dilation catheter through the isthmus between the middle ear and the ET;
(e) further advancing the distal portion of the dilation catheter into the ET;
(f) positioning an expandable element on the distal portion of the dilation catheter within the ET; and
(g) expanding the expandable element to thereby dilate the ET.

US Pat. No. 9,433,437

APPARATUS AND METHOD FOR TREATMENT OF ETHMOID SINUSITIS

Acclarent, Inc., Irvine,...

1. A method of treating a sinus cavity, the method comprising
(a) piercing at least one wall of the sinus cavity to form an opening, wherein the act of piercing at least one wall of the
sinus cavity comprises:

(i) piercing the sinus cavity in a first wall location, and
(ii) piercing the sinus cavity in a second wall location;
(b) inserting a fluid transfer member through the opening in the at least one wall of the sinus cavity, wherein the fluid
transfer member comprises a first port, a second port, and a wick defining a fluid passageway and wherein the fluid transfer
member is configured to provide a direct fluid communication path between the interior of the sinus cavity and a region external
to the sinus cavity, wherein a portion of fluid transfer member extends into the interior of the sinus cavity, wherein the
portion of the at least one fluid transfer member extending into the interior of the sinus cavity is longer than a portion
disposed in the opening of the sinus cavity, wherein the wick is configured to transfer fluid medication through a capillary
action and to administer the fluid medication directly from the wick to mucosa in the sinus cavity, wherein the act of inserting
the fluid transfer member comprises:

(i) inserting the first port into the first wall location, and
(ii) inserting the second port into the second wall location so that the first port and the second port are in direct fluid
communication with one another via the wick; and

(c) administering the fluid medication into a nostril in such a way that the fluid medication travels along the fluid transfer
member by way of a capillary action, and is administered directly from the wick to mucosa in the sinus cavity by the wick
extending into the interior of the sinus cavity.

US Pat. No. 10,118,012

SYSTEM AND METHOD FOR ANESTHETIZING EUSTACHIAN TUBE

Acclarent, Inc., Irvine,...

1. A system for delivering a fluid to a Eustachian tube (ET) of a patient, the system comprising:(a) a guide member, wherein the guide member comprises a shaft having a proximal portion and a distal portion and a lumen extending therebetween, wherein the guide member further comprises a bend at the distal portion, wherein the bend is configured to provide access to an opening in the ET, wherein the guide member, including the shaft and the bend, is rigid; and
(b) a tubular member configured to be positioned within the lumen of the guide member, wherein the tubular member comprises a proximal end, a distal end, and a lumen extending therebetween, wherein the tubular member is sized to fit within the ET, wherein one or both of the tubular member and guide member comprises a first stop member configured to engage the other of the tubular member or the guide member, wherein the first stop member is configured to restrict a distal advancement of the tubular member relative to the guide member.

US Pat. No. 9,872,973

LUER MEMBERS FOR COAXIAL LUMEN CATHETER

Acclarent, Inc., Irvine,...

1. A dilation catheter for dilation of an anatomical passageway, wherein the dilation catheter comprises:
(a) a luer member, wherein the luer member comprises at least one fluid port;
(b) an elongate shaft, wherein the elongate shaft defines a longitudinal axis, wherein the luer member is rotatably disposed
about the elongate shaft such that the luer member is configured to rotate relative to the elongate shaft about the longitudinal
axis of the elongate shaft, wherein the elongate shaft includes a feature that is configured to restrict translation of the
luer member along the length of the elongate shaft while simultaneously permitting rotation of the luer member relative to
the elongate shaft, wherein the elongate shaft comprises:

(i) a proximal end,
(ii) a distal end, and
(iii) a first lumen, wherein the at least one fluid port is in fluid communication with the first lumen such that fluid may
be passed through the at least one fluid port into the first lumen; and

(c) an inflatable dilator, wherein the inflatable dilator is positioned along a length of the elongate shaft, wherein the
inflatable dilator is in fluid communication with the first lumen such that the inflatable dilator is inflatable by fluid
passed through the at least one fluid port and into the first lumen.

US Pat. No. 9,636,258

SYSTEM AND METHOD FOR TREATMENT OF NON-VENTILATING MIDDLE EAR BY PROVIDING A GAS PATHWAY THROUGH THE NASOPHARYNX

Acclarent, Inc., Irvine,...

1. A method for providing a gas pathway and introducing a therapeutic substance in the middle ear region of a patient, comprising:
(a) introducing an endoluminal implant via the patient's nasopharynx into a Eustachian tube (ET) of the patient, wherein the
endoluminal implant:

i. contains the therapeutic substance; and
ii. is configured to elute the therapeutic substance into tissue of the ET;
(b) providing an intermittent gas pathway between a lumen of the ET and the nasopharynx using the endoluminal implant; and
(c) eluting the therapeutic substance into the tissue of the ET that is adjacent to the endoluminal implant.

US Pat. No. 9,603,506

METHODS AND DEVICES FOR FACILITATING VISUALIZATION IN A SURGICAL ENVIRONMENT

Acclarent, Inc., Irvine,...

1. A sinusitis treatment system comprising:
(a) an illuminating guidewire device having a proximal end, the proximal end comprising a proximal end portion, and a distal
end, the distal end comprising a flexible distal end portion and being configured to be inserted through a nostril and into
a paranasal sinus of a patient, the illuminating guidewire device having sufficient length to extend from the proximal end
located outside the patient to the distal end located within the paranasal sinus of the patient, the illuminating guidewire
device comprising:

(i) a distal tip on the flexible distal end portion; and
(ii) at least one light emitting element configured to project light distally through the distal tip on the flexible distal
end portion;

(b) a guide device having a first lumen configured to receive the illuminating guidewire device; and
(c) a balloon catheter having:
(i) a balloon; and
(ii) a lumen, wherein the lumen is sized for passage over the illuminating guidewire device to position the balloon of the
catheter within an opening into the paranasal sinus;

wherein the balloon is operable to pass within and through the first lumen of the guide device in an unexpanded configuration
such that the balloon catheter is operable to extend from a distal end of the guide device so as to position the balloon distally
of the guide device, wherein the balloon is configured to remain in the unexpanded configuration when positioned distally
of the guide device prior to introduction of a fluid into the balloon, wherein the balloon is configured to expand upon introduction
of fluid into the balloon.

US Pat. No. 9,757,018

MEDICAL GUIDEWIRE WITH INTEGRAL LIGHT TRANSMISSION

Acclarent, Inc., Irvine,...

1. A guidewire comprising:
(a) an elongate metal core, wherein the metal core has a proximal end and a distal end, wherein the metal core is configured
to communicate torsional motion from the proximal end to the distal end;

(b) an inner layer extending about the metal core, wherein the inner layer has a first index of refraction;
(c) an optical core, wherein the optical core is disposed about the inner layer, wherein the optical core is configured to
transmit light along the length of the guidewire, wherein the optical core has a second index of refraction, wherein the second
index of refraction is greater than the first index of refraction; and

(d) an outer layer, wherein the outer layer is disposed about the optical core, wherein the outer layer has a third index
of refraction, wherein the third index of refraction is less than the second index of refraction.

US Pat. No. 10,034,682

DEVICES, SYSTEMS AND METHODS USEABLE FOR TREATING FRONTAL SINUSITIS

Acclarent, Inc., Irvine,...

1. A method for dilating a frontal sinus ostium in a human or animal subject with a dilation catheter, the dilation catheter comprising a catheter shaft, a dilator positioned along a distal portion of the catheter shaft and having a sufficient length to extend through the frontal sinus ostium, the method comprising:(a) inserting a guide into a head of the subject;
(b) advancing the guide to the frontal sinus ostium, then stopping advancement of the guide when a distal portion of the guide is positioned within or adjacent to the frontal sinus ostium;
(c) advancing the dilation catheter relative to the guide to position the dilator within the frontal sinus ostium; and
(d) expanding the dilator, wherein expansion of the dilator results in dilation of the frontal sinus ostium and at least some breakage of bone adjacent to the frontal sinus ostium.

US Pat. No. 9,826,999

METHODS AND APPARATUS FOR TREATING DISORDERS OF THE EAR NOSE AND THROAT

Acclarent, Inc., Irvine,...

1. A device for dilating an ostium of a paranasal sinus of a human or animal subject, the device comprising:
(a) a handle comprising a proximal end and a distal portion;
(b) an elongate guide shaft extending distally from the handle, wherein the elongate guide shaft defines a guide shaft lumen,
said elongate shaft comprising a proximal portion and a distal end, wherein the distal end comprises a preformed fixed bend;

(c) a guidewire slidably positioned within the guide shaft lumen;
(d) a dilator configured to transition between a non-expanded configuration and an expanded configuration, wherein the dilator
is configured to fit in an ostium of a paranasal sinus in the non-expanded configuration, wherein the dilator is longitudinally
slidable relative to the elongate guide shaft and relative to the guidewire; and

(e) a first slide member coupled with the dilator, wherein the first slide member is located between the proximal end and
the distal portion of the handle, wherein the first slide member is slidable relative to the handle, wherein the first slide
member is operable to slide the dilator longitudinally relative to the elongate guide shaft past the preformed fixed bend
to a position that is distal of a tip of the elongate guide shaft without dilating the dilator, wherein the preformed fixed
bend is configured to not change shape as the dilator moves past the preformed fixed bend.

US Pat. No. 10,065,028

ENHANCED GRIPPING FEATURES FOR NASAL AND PARANASAL SINUS SYSTEMS

Acclarent, Inc., Irvine,...

1. A gripping system for use in treating a sinus cavity, the system comprising:(a) a handle with a proximal end and a distal end;
(b) a first seeker portion attached to the proximal end of the handle and extending proximally therefrom, said first seeker portion having a first angle, wherein the first seeker portion is a rigid hollow tube; and
(c) a second seeker portion attached to the distal end of the handle and extending distally therefrom, said second seeker portion having a second angle, wherein the second seeker portion is a rigid hollow tube, and wherein the second angle is different from the first angle; and
(d) a balloon catheter cartridge, said balloon catheter cartridge comprising:
(i) a balloon catheter having a balloon and a catheter shaft and an inflation lumen;
(ii) inflation tubing; and
(iii) a balloon catheter connector, wherein the balloon catheter connector connects the balloon catheter to the inflation tubing and further connects the balloon catheter cartridge to the handle.

US Pat. No. 10,064,555

ILLUMINATING GUIDEWIRE WITH OPTICAL SENSING

Acclarent, Inc., Irvine,...

1. A guide system comprising:(a) a guide member, wherein the guide member comprises a proximal end and a distal end, wherein the guide member comprises at least one illumination fiber;
(b) a light source, wherein the light source is operable to project light to the proximal end of the guide member, wherein the at least one illumination fiber is operable to distally transmit the light projected by the light source from the proximal end of the guide member to the distal end of the guide member, wherein the distal end of the guide member is operable to project the distally transmitted light, wherein the distal end of the guide member is further operable to receive light projected from the distal end of the guide member and reflected back toward the distal end of the guide member, wherein the at least one illumination fiber is operable to proximally transmit the reflected light from the distal end of the guide member to the proximal end of the guide member;
(c) a detector, wherein the proximal end of the guide member is operable to project the proximally transmitted light toward the detector, wherein the detector is operable to detect the proximally transmitted light;
(d) a guide catheter, wherein the guide member is configured to slide through the guide catheter; and
(e) a balloon dilation catheter, wherein the balloon dilation catheter is configured to slide along the guide member.

US Pat. No. 10,130,799

INFLATOR WITH VARYING MECHANICAL ADVANTAGE

Acclarent, Inc., Irvine,...

1. An inflator, comprising:(a) a body defining a reservoir, wherein the reservoir is configured to hold a fluid, wherein the reservoir includes a fluid outlet;
(b) a first drive member movably engaged with the body, wherein the first drive member is operable to move through the reservoir to selectively drive fluid from the reservoir through the outlet;
(c) a second drive member engaged with the first drive member; and
(d) a rotary drive member coupling the first drive member with the second drive member,
wherein the second drive member is movable distally along an axis relative to the body through a first range of motion to actuate the first drive member to drive fluid through the outlet at a first rate,
wherein the second drive member is movable distally along the axis relative to the body through a second range of motion following the first range of motion,
wherein the first drive member is configured to either drive fluid through the outlet at a second rate or not drive fluid through the outlet as the second drive member moves through the second range of motion,
wherein the rotary drive member is configured to provide displacement of the first drive member relative to the reservoir at the first rate and at a first amount of mechanical advantage as the second drive member moves through the first range of motion, followed by displacement of the first drive member relative to the reservoir at the second rate and at a second amount of mechanical advantage as the second drive member moves through the second range of motion.

US Pat. No. 10,098,652

SYSTEMS AND METHODS FOR TRANSNASAL DILATION OF PASSAGEWAYS IN THE EAR, NOSE OR THROAT

Acclarent, Inc., Irvine,...

1. A method for dilating a drainage passageway associated with a paranasal sinus of a patient, the method comprising:advancing a guide catheter into a head of a patient such that a distal end of the guide catheter is positioned within or near the drainage passageway associated with the paranasal sinus;
inserting an endoscope into the patient's head;
advancing a balloon catheter through a lumen of the guide catheter such that a balloon of the catheter passes out of the distal end of the guide catheter;
viewing, with the endoscope, a first distal shaft marker disposed on a shaft of the balloon catheter a first known distance from the balloon;
viewing, with the endoscope, a second distal shaft marker disposed on the shaft a second known distance from the balloon;
approximating a location of the balloon relative to the drainage passageway associated with the paranasal sinus, using the first and second distal shaft marker and their known distances from the balloon; and
expanding the balloon of the balloon catheter to remodel or break bone underlying mucosa of the drainage passageway associated with the paranasal sinus and dilate the drainage passageway associated with the paranasal sinus.

US Pat. No. 10,362,965

SYSTEM AND METHOD TO MAP STRUCTURES OF NASAL CAVITY

Acclarent, Inc., Irvine,...

1. An apparatus comprising:(a) a handle assembly, wherein the handle assembly comprises
(i) a body,
(ii) a cable configured to communicate an electrical signal to a navigation system, and
(iii) a first portion of an adapter coupled with a distal end of the cable;
(b) a guide tube extending distally from the handle assembly, wherein the guide tube has a distal end; and
(c) a cartridge assembly configured to be removably coupled with the handle assembly, wherein the cartridge assembly includes:
(i) an actuator, wherein the actuator is movable relative to the body to move the wire relative to the guide tube, and
(ii) a wire coupled with the actuator and configured to communicate an electrical signal to the cable, wherein the wire is slidably disposed in the guide tube, wherein the wire includes:
(A) a distal end including a sensor, wherein the distal end of the wire is configured to translate relative to the body,
(B) a proximal end that terminates at a second portion of the adapter, wherein the second portion of the adapter is configured to be removably coupled with the first portion of the adapter, wherein the proximal end is fixed relative to the body, and
(C) an intermediate portion configured to gather within the body as a service loop to provide freedom of movement of the distal end of the wire relative to the body as the distal end of the wire translates proximally relative to the body,
wherein the sensor is configured to cooperate with the navigation system to generate a map of anatomical structures within a patient.

US Pat. No. 10,188,413

DEFLECTABLE GUIDE CATHETERS AND RELATED METHODS

Acclarent, Inc., Irvine,...

1. A method comprising:(a) advancing a guide catheter into a head of a patient along a first path through a nostril of the patient in a first direction, wherein the guide catheter comprises a longitudinally extending distal deflection portion, wherein the distal deflection portion of the guide catheter comprises a lumen extending therethrough to a distal opening and a resilient member, wherein the resilient member biases the lumen of the distal deflection portion to a first configuration;
(b) providing a proximal assembly coupled with the guide catheter and a pull member connected to a distal end of the resilient member, wherein the proximal assembly is located outside the patient's body when the distal deflection portion of the guide catheter is in the head of the patient, wherein the proximal assembly comprises a control member operatively connected to the pull member, wherein the control member is configured to proximally pull the pull member and the resilient member connected thereto in order to deflect the lumen of the distal deflection portion from the first configuration to a second configuration;
(c) positioning the distal deflection portion of the guide catheter at or near a desired location of a first anatomical structure within the head of the patient, wherein the head of the patient has an anatomy with the first anatomical structure defining a passageway, wherein the first anatomical structure prevents access to a second anatomical structure within the head via the first path;
(d) retracting the control member proximally to proximally pull the pull member in conjunction with the resilient member to thereby deflect the lumen of the distal deflection portion from the first configuration to the second configuration;
(e) moving the distal opening of the guide catheter along a second path in a second direction transverse to the first direction such that the distal deflection portion advances around the first anatomical structure of the anatomy such that the distal deflection portion is in contact with the first anatomical structure of the anatomy about the passageway and the distal opening aligns with the passageway of the anatomy; and
(f) advancing a guidewire through the deflected lumen of the guide catheter to contact or pass through the desired location and the second anatomical structure.

US Pat. No. 10,183,153

SINUS WALL IMPLANT

Acclarent, Inc., Irvine,...

1. A sinus wall implant comprising:(a) a cylindraceous body defining a longitudinal axis and a lumen;
(b) a flange extending from a first side of the cylindraceous body, wherein the flange is resiliently biased to extend along a plane perpendicular to the longitudinal axis of the cylindraceous body;
(c) a retention wing extending from a second side of the cylindraceous body; and
(d) a release element extending from the retention wing through the lumen.

US Pat. No. 10,143,591

LOW PROFILE EUSTACHIAN TUBE DILATION SYSTEM

Acclarent, Inc., Irvine,...

1. A method for dilating a Eustachian tube of a patient, the method comprising:advancing a Eustachian Tube Dilation System into a nostril of the patient and through a nasal cavity to position a distal end of the Eustachian Tube Dilation System at, in or near an opening into the Eustachian tube, the Eustachian Tube Dilation System comprising:
a protective sheath comprising a flexible elongate shaft, an endoscope lumen and a balloon dilationcatheter lumen;a stiffening member surrounding the flexible elongate shaft of the protective sheath;
a flexible endoscope for use in visualizing the Eustachian tube of the patient within said endoscope lumen;
a balloon dilation catheter for accessing and treating the Eustachian tube with said balloon dilation catheter lumen, wherein the balloon dilation catheter comprises:
an elongate shaft, the elongate shaft having a proximal end and a distal end and an inflation lumen therebetween;
a low-profile inflatable balloon positioned at the distal end of said elongate shaft; wherein the elongate shaft comprises a hollow shaft extending from the proximal end of the elongate shaft to the inflatable balloon, and a solid shaft extending beyond the inflatable balloon;
visualizing the nasal cavity, the Eustachian Tube, and the balloon dilation catheter using the flexible endoscope;
advancing the balloon of the balloon dilation catheter from the balloon dilation catheter lumen to within the Eustachian tube;
inflating the balloon to dilate the Eustachian Tube;
deflating the balloon;
optionally repeating the inflating and deflating step;
withdrawing the balloon into the balloon dilation catheter lumen; and
removing the Eustachian Tube Dilation System from the nostril of the patient.

US Pat. No. 10,206,821

EUSTACHIAN TUBE DILATION BALLOON WITH VENTILATION PATH

Acclarent, Inc., Irvine,...

1. A method of using a dilator assembly, the dilator assembly comprising:(a) a shaft defining a longitudinal axis, wherein the shaft comprises:
(i) a distal end,
(ii) a proximal end, and
(iii) at least one shaft lumen;
(b) an expandable dilator located on the at shaft, wherein the expandable dilator is positioned between the distal end of the shaft and the proximal end of the shaft, wherein the expandable dilator comprises a body configured to transition between a contracted state and an expanded state, wherein the body is configured to dilate a Eustachian tube of a patient in the expanded state, wherein the body further comprises a distal end and a proximal end; and
(c) at least one ventilation pathway configured to provide ventilation from the distal end of the body to the proximal end of the body when the body is in the expanded state, wherein the at least one ventilation pathway comprises one or both of the following:
(i) a set of transversely oriented vent openings formed through the shaft, wherein at least one vent opening is distal to the distal end of the body and at least one other vent opening is proximal to the proximal end of the body, or
(ii) a space defined by one or more radially outwardly protruding features of the expandable dilator,
the method comprising:
(a) inserting the expandable dilator into a Eustachian tube of a patient
(b) expanding the expandable dilator to dilate the Eustachian tube, wherein the at least one ventilation pathway enables air to travel between the distal end of the body and the proximal end of the body through the at least one ventilation pathway while the expandable dilator dilates the Eustachian tube, thereby ventilating a distal portion of the Eustachian tube while dilating the Eustachian tube.

US Pat. No. 10,179,227

RESILIENT TUBE OVER DILATOR BALLOON

Acclarent, Inc., Irvine,...

1. A dilation device comprising:(a) an elongate shaft;
(b) an inflatable balloon disposed along the shaft, wherein the inflatable balloon is configured to transition between a non-inflated configuration and an inflated configuration; and
(c) a resilient tube disposed along the shaft, wherein the resilient tube includes opposing proximal and distal ends, wherein the resilient tube partially encompasses the inflatable balloon such that the distal end of the resilient tube is positioned proximal to a distal end of the inflatable balloon, wherein the proximal end of the resilient tube is bonded to the shaft and the distal end of the resilient tube is longitudinally slidable relative to the distal end of the inflatable balloon while the proximal end remains bonded to the shaft, wherein the resilient tube is configured to expand and contract with the inflatable balloon as the inflatable balloon transitions between the non-inflated configuration and the inflated configuration, and wherein the resilient tube is configured to impose a resilient bias on at least a portion of an exterior of the inflatable balloon to thereby resiliently urge the inflatable balloon toward the non-inflated configuration, wherein at least part of the resilient tube is secured to one or both of the elongate shaft or the inflatable balloon.

US Pat. No. 10,179,002

APPARATUS AND METHOD FOR TREATING DISORDERS OF THE EAR, NOSE AND THROAT

Acclarent, Inc., Irvine,...

1. A surgical instrument and cable drive mechanism, comprising:a hand piece,
an outer-most shaft coupled to the hand piece that extends to a distal end, the outer-most shaft having a closed, rounded, convex distal surface and a first plurality of cutting teeth defined at the distal end,
an inner shaft positioned in the outer-most shaft, the inner shaft having a passageway and a second plurality of cutting teeth, wherein the diameter of the passageway in the distal section is less than the diameter in the proximal section, and wherein the surgical instrument includes a cutting slot that is partially defined by the first plurality of cutting teeth, and the inner shaft is configured to rotate relative to the outer-most shaft such that the first plurality of cutting teeth and the second plurality of cutting teeth cooperate to cut tissue advanced into the passageway through the cutting slot, wherein the instrument is disposable after a single use; and
a cable drive mechanism coupled to the hand piece and configured to rotate the inner shaft relative to the-most outer shaft.

US Pat. No. 10,166,369

DEVICES AND METHOD FOR MAXILLARY SINUS LAVAGE

Acclarent, Inc., Irvine,...

1. A method for lavaging a maxillary sinus, said method comprising:(a) positioning a distal portion of a lavage catheter instrument in nasal anatomy of a patient, wherein the lavage catheter instrument comprises:
(i) an elongate shaft with a bend angle of between about 90 degrees and 140 degrees,
(ii) a distal irrigation tube in coaxial arrangement with said elongate shaft, the distal irrigation tube being coaxially surrounded by the elongate shaft, the distal irrigation tube having side irrigation holes and an atraumatic ball tip that blocks a distal end of the distal irrigation tube,
(ii) a handle comprising:
(A) a proximal end,
(B) a distal end, wherein the elongate shaft extends distally from the distal end, and
(C) an actuator, wherein the actuator is positioned between the proximal end of the handle and the distal end of the handle, and
(iv) a proximal portion comprising an irrigation luer and irrigation tubing, wherein the proximal portion extends proximally from the proximal end of the handle;
(b) connecting a fluid source to the irrigation catheter;
(c) with one hand, advancing the distal end of the irrigation tube into the maxillary sinus by sliding the actuator along the handle, wherein sliding the actuator along the handle comprises sliding the actuator from a proximal position to a distal position, wherein the proximal position is distal to the proximal end of the handle, wherein the distal position is proximal to the distal end of the handle; and
(d) delivering fluid to the maxillary sinus from the fluid source though the lavage catheter.

US Pat. No. 10,383,992

MEDICAL DEVICE AND METHOD FOR TREATMENT OF A SINUS OPENING

Acclarent, Inc., Irvine,...

1. A method for treating a sinus opening, the method comprising:(a) inserting a medical device for the treatment of a sinus opening partially into a patient's anatomy, wherein the medical device includes:
(i) a handle having a proximal end and a distal end,
(ii) a guide wire integrated with the handle,
(iii) a guide wire movement mechanism slidably positioned between the proximal end of the handle and the distal end of the handle,
(iv) a guide wire locking and rotation mechanism integrated with the guide wire movement mechanism,
(v) a balloon catheter, and
(vi) a balloon catheter movement mechanism positioned between the proximal end of the handle and the distal end of the handle;
(b) positioning the medical device in the sinus opening;
(c) advancing a guide wire of the medical device into the patient's sinus via user operation of the guide wire movement mechanism of the medical device, wherein the balloon catheter movement mechanism and the guide wire movement mechanism remain positioned between the proximal end of the handle and the distal end of the handle during the act of advancing the guide wire;
(d) rotating the guide wire within the patient's anatomy via user operation of the guide wire locking and rotation mechanism of the guide wire movement mechanism;
(e) repeating the guide wire advancing and rotating steps to position the guide wire in the sinus opening;
(f) advancing a balloon catheter of the medical device along the guide wire via user operation of the balloon catheter movement mechanism of the medical device, wherein the balloon catheter movement mechanism and the guide wire movement mechanism remain positioned between the proximal end of the handle and the distal end of the handle during the act of advancing the balloon catheter; and
(g) treating the sinus opening via inflation of the balloon catheter.

US Pat. No. 10,376,416

SYSTEM AND METHOD FOR TREATMENT OF NON-VENTILATING MIDDLE EAR BY PROVIDING A GAS PATHWAY THROUGH THE NASOPHARYNX

Acclarent, Inc., Irvine,...

1. An endoluminal implant for providing a gas pathway between a nasopharynx and a Eustachian tube (ET) of a patient, the endoluminal implant comprising:(a) a body dimensioned for insertion into the ET, wherein the body defines a lumen; and
(b) a valve configured to modulate opening and closing of the lumen in response to movement of tissue associated with the ET, wherein the valve comprises:
(i) a first valve portion; and
(ii) a second valve portion,
wherein the first and second valve portions are movable relative to one another between a closed state in which the valve portions are configured to sealingly engage one another to thereby restrict flow of gas through the lumen, and an open state in which the valve portions are configured to separate to thereby permit flow of gas through the lumen.

US Pat. No. 10,335,319

METHOD AND APPARATUS FOR CLEANING ISTHMUS OF EUSTACHIAN TUBE

Acclarent, Inc., Irvine,...

1. A method for cleaning an isthmus of a Eustachian tube (ET) of a patient using an instrument, wherein the instrument comprises a proximal portion, a distal portion, and a shaft extending therebetween, wherein the instrument further comprises a treatment feature disposed at the distal portion, the method comprising:(a) directing the instrument into an oro-nasal cavity of the patient;
(b) advancing at least the distal portion of the instrument into an opening of the ET;
(c) further advancing the instrument within the ET so that the treatment feature is disposed past, or is coincident with, the isthmus; and
(d) moving the treatment feature relative to the isthmus while atraumatically frictionally engaging the isthmus to thereby clean the isthmus by removing debris without damaging the isthmus.

US Pat. No. 10,300,257

FEATURES TO ENHANCE GRIP OF BALLOON WITHIN AIRWAY

Acclarent, Inc., Irvine,...

1. A dilation assembly, wherein the dilation assembly comprises:(a) a shaft defining a longitudinal axis, wherein the shaft comprises a distal end and a proximal end; and
(b) a dilator coupled with the distal end of the shaft, wherein the dilator comprises:
(i) a proximal end,
(ii) a distal end,
(iii) a center portion positioned between the proximal end and the distal end, wherein the center portion is dilatable to have a larger diameter than the proximal end and the distal end, wherein the center portion is configured to dilate from a first configuration to a second configuration,
(iv) a plurality of working length portions defined by the center portion, and
(v) a plurality of elongate gripping features positioned on the center portion, wherein each of the elongate gripping features is folded under each respective working length portion when the dilator is in the first configuration, wherein a majority of each of the gripping features is configured to be in atraumatic direct contact with a bodily lumen to provide friction between the center portion of the dilator and the bodily lumen when the center portion is in the second configuration, wherein the gripping features are symmetrical about the longitudinal axis in the first configuration.

US Pat. No. 10,244,935

HANDLE WITH FEATURES TO SECURE A CATHETER ASSEMBLY TO AN ENDOSCOPE

Acclarent, Inc., Irvine,...

1. A dilation system, wherein the dilation system comprises:(a) a body, wherein the body comprises a distal end and a proximal end;
(b) a guide member, wherein the guide member is coupled to the distal end of the body and extends distally therefrom;
(c) a dilation member, wherein the dilation member comprises an expandable dilator, wherein the dilation member is configured to translate relative to the guide member;
(d) an endoscope, wherein the endoscope is disposed within the body and extends distally therefrom alongside the guide member and exterior to the guide member;
(e) a locking feature, wherein the locking feature is configured to selectively lock the endoscope in position relative to the body; and
(f) an actuator, wherein the actuator surrounds an exterior surface of the body, wherein a portion of the actuator protrudes radially inwardly into an inner, channel of the body to slidably couple the actuator and the dilation member to the body;
wherein the body, the guide member, the dilation member, the endoscope, and the locking feature are sized, arranged, and configured to be grasped and manipulated together by a single hand.

US Pat. No. 10,238,845

BALLOON CATHETER ASSEMBLY

Acclarent, Inc., Irvine,...

1. A dilation catheter system, wherein the dilation catheter system comprises:(a) a body, wherein the body comprises a distal end and a proximal end;
(b) a guidewire, wherein the guidewire extends along a longitudinal axis;
(c) a dilation catheter, wherein the dilation catheter comprises an expandable dilator, wherein the dilation catheter extends coaxially along the longitudinal axis with the guidewire; and
(d) a guidewire movement mechanism, wherein the guidewire movement mechanism comprises a guidewire rotation feature operable to rotate the guidewire, wherein the guidewire rotation feature comprises:
(i) a rotary grip,
(ii) a transmission assembly comprising a first rotating body fixed to the guidewire and a second rotating body associated with the rotary grip, wherein the rotary grip is distal relative to the second rotating body, wherein the transmission assembly mechanically couples the rotary grip with the guidewire such that the rotary grip is operable to rotate the guidewire via the transmission assembly, wherein the first rotating body engages the guidewire at a location positioned coaxially along the longitudinal axis,
(iii) an arm connecting the rotary grip and the transmission assembly such that the rotary grip, the arm, and the transmission assembly are configured to unitarily translate linearly relative to the body, and
(iv) a torque cable extending through the arm and connecting to the rotary grip and the second rotating body, wherein the torque cable is configured to rotate within the arm while the guidewire rotation feature rotates the guidewire.

US Pat. No. 10,350,396

VENT CAP FOR A EUSTACHIAN TUBE DILATION SYSTEM

Acclarent, Inc., Irvine,...

1. A system for use in dilating a Eustachian tube of a patient, the system comprising:a balloon dilation catheter for accessing and treating the Eustachian tube through the nose of a human patient, the balloon dilation catheter comprising:
(i) an elongate shaft, the elongate shaft having a proximal end and a distal end and an inflation lumen therebetween, the elongate shaft defining a longitudinal axis;
(ii) an inflatable balloon positioned at the distal end of said elongate shaft;
(iii) a proximal connector positioned at the proximal end of said elongate shaft, said proximal connector comprising an inflation port in fluid communication with the inflation lumen of the elongate shaft and an in-line port, the inflation port being oriented transversely relative to the longitudinal axis, the in-line port being coaxially aligned with the longitudinal axis; and
(iv) a vent cap attached to said in-line port, the vent cap being coaxially aligned with the longitudinal axis, wherein the vent cap comprises a top portion and a central post, wherein the central post is dimensioned for insertion into the in-line port along the longitudinal axis, the central post defining a plurality of leaves extending outwardly from the longitudinal axis, and wherein vent cap further comprises a side portion with at least two side arms with gripping features for gripping to the in-line port, the vent cap further including at least one vent opening positioned laterally relative to the central post, the vent cap further defining a ventilation passageway between the at least one vent opening and open spaces defined between the leaves.

US Pat. No. 10,271,871

MULTI-WINDOW SURGICAL CUTTING APPARATUS

Acclarent, Inc., Irvine,...

1. An apparatus comprising:(a) a shaft, wherein the shaft comprises a longitudinal axis, wherein the shaft defines a lumen, wherein the shaft comprises a distal portion and a proximal portion, wherein the shaft comprises a first window region and a second window region;
(b) a first cutting edge disposed in said lumen and extending along a portion of the longitudinal axis, wherein the first cutting edge is configured to be cyclically moved across at least a portion of the first window region;
(c) a second cutting edge disposed in said lumen, wherein the second cutting edge is configured to be cyclically moved across at least a portion of the second window region;
(d) a first shield portion which is selectively rotatable relative to the shaft and the first cutting edge between a first position and a second position, wherein the first shield portion is configured to occlude the first window region when the first shield portion is rotated to the first position, wherein the first shield portion is configured to not occlude the first window region when the first shield portion is rotated to the second position; and
(e) a second shield portion which is selectively rotatable relative to the shaft and the second cutting edge between a third position and a fourth position, wherein the second shield portion is configured to occlude the second window region when the second shield portion is rotated to the third position, wherein the second shield portion is configured to not occlude the second window region when the second shield portion is rotated to the fourth position.

US Pat. No. 10,271,719

PARANASAL OSTIUM FINDER DEVICES AND METHODS

Acclarent, Inc., Irvine,...

1. An apparatus, comprising:(a) an elongated shaft, wherein the elongated shaft comprises:
(i) a distal end,
(ii) a proximal end,
(iii) a curved region between the proximal and distal ends,
(iv) an elongated tubular inner sheath, and
(v) elongated tubular outer sheath, the inner sheath being positioned within the outer sheath;
(b) a handle joined to the proximal end;
(c) a longitudinal interior channel extending through the shaft and the handle;
(d) an actuator element slidably mounted within a slot on the handle; and
(e) an expandable dilator slidably disposed around a portion of an exterior of the elongate shaft; further comprising an extensible and retractable guidewire movably mounted within the interior channel; wherein the guide wire is reversibly movable between a retracted position and an extended position.