Patents by Inventor Hung V. Ha

Hung V. Ha has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210315448
    Abstract: Methods and apparatus for treating disorders of the ear, nose, throat or paranasal sinuses, including methods and apparatus for dilating ostia, passageways and other anatomical structures, endoscopic methods and apparatus for endoscopic visualization of structures within the ear, nose, throat or paranasal sinuses, navigation devices for use in conjunction with image guidance or navigation system and hand held devices having pistol type grips and other handpieces.
    Type: Application
    Filed: April 29, 2021
    Publication date: October 14, 2021
    Inventors: Joshua Makower, John Y. Chang, Ketan P. Muni, John H. Morriss, Hung V. Ha, Isaac J. Kim, Julia D. Vrany
  • Patent number: 11097084
    Abstract: A dilation catheter comprises a handle, a guidewire, a dilation catheter, a guidewire movement mechanism, and dilation catheter movement actuator. The guidewire movement mechanism is configured to translate to thereby cause translation of the guidewire relative to the handle. The dilation catheter movement mechanism is configured to translate to thereby cause translation of the dilation catheter relative to the handle. The guidewire movement mechanism also includes a rotation mechanism configured to impart rotation upon the guidewire. The rotation mechanism may include features configured to limit the amount that the guidewire may rotate. The rotation mechanism may also include features configured to convert linear movement of an actuator into rotational movement of the guidewire. The dilation catheter may include features configured to provide for side entry of the guidewire into the dilation catheter.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: August 24, 2021
    Assignee: Acclarent, Inc.
    Inventors: Hung V. Ha, Arthur M. Lin, Thomas R. Jenkins, Randy J. Kesten, Scott O. Chamness, Ketan P. Muni
  • Publication number: 20210161719
    Abstract: A dilation catheter includes a shaft and an expandable element. The shaft includes a proximal portion and a distal portion. The distal portion includes a tip and a bend. The tip is sized and configured to pass through an isthmus of a Eustachian tube (ET). The bend is proximal to the tip. The bend is formed at an angle configured to provide insertion of the tip into the isthmus of the ET via an ear canal associated with the ET. The expandable element is disposed at the distal portion of the shaft. The expandable element is configured to transition between a non-expanded state and an expanded state. The expandable element in the non-expanded state is configured for insertion into the ET via the isthmus. The expandable element in the expanded state is configured to dilate the ET.
    Type: Application
    Filed: November 30, 2020
    Publication date: June 3, 2021
    Inventors: Randy S. Chan, Ketan P. Muni, Hung V. Ha, Andy Nguyen, Holger Sudhoff, Sivette Lam, Marc Dean, Dennis S. Poe
  • Patent number: 11019989
    Abstract: Methods and apparatus for treating disorders of the ear, nose, throat or paranasal sinuses, including methods and apparatus for dilating ostia, passageways and other anatomical structures, endoscopic methods and apparatus for endoscopic visualization of structures within the ear, nose, throat or paranasal sinuses, navigation devices for use in conjunction with image guidance or navigation system and hand held devices having pistol type grips and other handpieces.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: June 1, 2021
    Assignee: Acclarent, Inc.
    Inventors: Joshua Makower, John Y. Chang, Ketan P. Muni, John H. Morriss, Hung V. Ha, Isaac J. Kim, Julia D. Vrany
  • Patent number: 11013896
    Abstract: A device and method for dilating a Eustachian tube of a patient is disclosed. The device includes a guide catheter and a balloon dilation catheter. The balloon dilation catheter has an actuator that prevents injury to the middle ear. The balloon dilation catheter is slidably coupled with the guide catheter through the guide catheter lumen and is fully inserted into the guide catheter lumen when the distal side of the actuator is adjacent to the proximal end of the guide catheter. The method involves advancing the guide catheter and balloon dilation catheter through a nasal passage of the patient to dilate a portion of the Eustachian tube.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: May 25, 2021
    Assignee: Acclarent, Inc.
    Inventors: Randy S. Chan, Hung V. Ha, Andy Nguyen, Ketan P. Muni
  • Patent number: 10898384
    Abstract: A dilation catheter includes a shaft and an expandable element. The shaft includes a proximal portion and a distal portion. The distal portion includes a tip and a bend. The tip is sized and configured to pass through an isthmus of a Eustachian tube (ET). The bend is proximal to the tip. The bend is formed at an angle configured to provide insertion of the tip into the isthmus of the ET via an ear canal associated with the ET. The expandable element is disposed at the distal portion of the shaft. The expandable element is configured to transition between a non-expanded state and an expanded state. The expandable element in the non-expanded state is configured for insertion into the ET via the isthmus. The expandable element in the expanded state is configured to dilate the ET.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: January 26, 2021
    Assignee: Acclarent, Inc.
    Inventors: Randy S. Chan, Ketan P. Muni, Hung V. Ha, Andy Nguyen, Holger Sudhoff, Sivette Lam, Marc Dean, Dennis S. Poe
  • Publication number: 20210015352
    Abstract: Methods and apparatus for treating disorders of the ear, nose, throat or paranasal sinuses, including methods and apparatus for dilating ostia, passageways and other anatomical structures, endoscopic methods and apparatus for endoscopic visualization of structures within the ear, nose, throat or paranasal sinuses, navigation devices for use in conjunction with image guidance or navigation system and hand held devices having pistol type grips and other handpieces.
    Type: Application
    Filed: September 25, 2020
    Publication date: January 21, 2021
    Inventors: Joshua Makower, John Y. Chang, Ketan P. Muni, John H. Morriss, Hung V. Ha, Isaac J. Kim, Julia D. Vrany
  • Patent number: 10874838
    Abstract: Devices, systems and methods useable for dilating the ostia of paranasal sinuses and/or other passageways within the ear, nose or throat. A dilation catheter device and system is constructed in a manner that facilitates ease of use by the operator and, in at least some cases, allows the dilation procedure to be performed by a single operator. Additionally, the dilation catheter device and system may be useable in conjunction with an endoscope and/or a fluoroscope to provide for easy manipulation and positioning of the devices and real time visualization of the entire procedure or selected portions thereof. In some embodiments, an optional handle may be used to facilitate grasping or supporting a device of the present invention as well as another device (e.g., an endoscope) with a single hand.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: December 29, 2020
    Assignee: Acclarent, Inc.
    Inventors: Eric Goldfarb, John Y. Chang, William M. Facteau, Sivette Lam, Hung V. Ha, Isaac J. Kim, Ketan P. Muni
  • Patent number: 10813547
    Abstract: Methods and apparatus for treating disorders of the ear, nose, throat or paranasal sinuses, including methods and apparatus for dilating ostia, passageways and other anatomical structures, endoscopic methods and apparatus for endoscopic visualization of structures within the ear, nose, throat or paranasal sinuses, navigation devices for use in conjunction with image guidance or navigation system and hand held devices having pistol type grips and other handpieces.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: October 27, 2020
    Assignee: Acclarent, Inc.
    Inventors: Joshua Makower, John Y. Chang, Ketan P. Muni, John H. Morriss, Hung V. Ha, Isaac J. Kim, Julia D. Vrany
  • Patent number: 10806477
    Abstract: A dilation catheter device and system for dilating an opening in a paranasal sinus and/or other passageways within the ear, nose or throat is disclosed. A dilation catheter device and system is constructed in a manner that facilitates ease of use by the operator and, in at least some cases, allows the dilation procedure to be performed by a single operator. Additionally, the dilation catheter device and system may be useable in conjunction with an endoscope and/or a fluoroscope to provide for easy manipulation and positioning of the devices and real time visualization of the entire procedure or selected portions thereof. In some embodiments, shaft markers are disposed on a shaft of the dilation catheter and have a light color to contrast with a dark color of the dilation catheter shaft. The high contrast between the markers and catheter shaft allows for easy viewing of the markers in low light and operation conditions.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: October 20, 2020
    Assignee: Acclarent, Inc.
    Inventors: Eric Goldfarb, John Y. Chang, William M. Facteau, Sivette Lam, Hung V. Ha, Isaac J. Kim, Ketan P. Muni
  • Patent number: 10695537
    Abstract: A method for dilating a stenotic region in an airway of a patient may include advancing a balloon catheter through the airway of the patient to position an inflatable balloon of the catheter within at least a portion of the stenotic region, maintaining a position of the catheter relative to the patient, and inflating the balloon of the catheter to dilate the stenotic region of the airway. A system for dilating a stenotic region in an airway of a patient may include a catheter shaft having an overall length of less than 70 cm, an inflatable balloon disposed along a distal portion of the catheter shaft, and a stylet.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: June 30, 2020
    Assignee: Acclarent, Inc.
    Inventors: Ketan P. Muni, Hung V. Ha, Chi Nguyen, Randy S. Chan, John Y. Chang
  • Patent number: 10687690
    Abstract: A dilation catheter system comprises a guide member, a dilation catheter, and an image sensor. The guide member includes a shaft comprising a distal end and a proximal end. The shaft further defines a longitudinal axis. The dilation catheter is movable relative to the guide catheter member and comprises an expandable dilator. The expandable dilator is sized to fit within one or both of a Eustachian tube or a passageway associated with a paranasal sinus. The image sensor is configured to provide visualization within anatomy of a patient. The image sensor is integral with the guide member.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: June 23, 2020
    Assignee: Acclarent, Inc.
    Inventors: Randy J. Kesten, Ketan P. Muni, James Patrick Garvey, II, Hung V. Ha, Andy Nguyen
  • Publication number: 20200164187
    Abstract: Sinusitis and other disorders of the ear, nose and throat are diagnosed and/or treated using minimally invasive approaches with flexible or rigid instruments. Various methods and devices are used for remodeling or changing the shape, size or configuration of a sinus ostium or duct or other anatomical structure in the ear, nose or throat; implanting a device, cells or tissues; removing matter from the ear, nose or throat; delivering diagnostic or therapeutic W substances or performing other diagnostic or therapeutic procedures. Introducing devices (e.g., guide catheters, tubes, guidewires, elongate probes, other elongate members) may be used to facilitate insertion of working devices (e.g. catheters e.g. balloon catheters, guidewires. tissue cutting or remodeling devices, devices for implanting elements like stents, electrosurgical devices, energy emitting devices, devices for delivering diagnostic or therapeutic agents, substance delivery implants. scopes etc.
    Type: Application
    Filed: January 21, 2020
    Publication date: May 28, 2020
    Inventors: John Y. Chang, Joshua Makower, Julia D. Vrany, John H. Morriss, Ketan P. Muni, Isaac J. Kim, Hung V. Ha, William M. Facteau, Amrish J. Walke
  • Patent number: 10638917
    Abstract: A dilation catheter system comprises a guide member, a dilation catheter, and an image sensor. The guide member includes a shaft comprising a distal end and a proximal end. The shaft further defines a longitudinal axis. The dilation catheter is movable relative to the guide catheter member and comprises an expandable dilator. The expandable dilator is sized to fit within one or both of a Eustachian tube or a passageway associated with a paranasal sinus. The image sensor is configured to provide visualization within anatomy of a patient. The image sensor is integral with the guide member.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: May 5, 2020
    Assignee: Acclarent, Inc.
    Inventors: Randy J. Kesten, Ketan P. Muni, James Patrick Garvey, II, Hung V. Ha, Andy Nguyen
  • Publication number: 20200114132
    Abstract: Sinusitis and other disorders of the ear, nose and throat are diagnosed and/or treated using minimally invasive approaches with flexible or rigid instruments. Various methods and devices are used for remodeling or changing the shape, size or configuration of a sinus ostium or duct or other anatomical structure in the ear, nose or throat; implanting a device, cells or tissues; removing matter from the ear, nose or throat; delivering diagnostic or therapeutic substances or performing other diagnostic or therapeutic procedures. Introducing devices (e.g., guide catheters, tubes, guidewires, elongate probes, other elongate members) may be used to facilitate insertion of working devices (e.g. catheters e.g. balloon catheters, guidewires, tissue cutting or remodeling devices, devices for implanting elements like stents, electrosurgical devices, energy emitting devices, devices for delivering diagnostic or therapeutic agents, substance delivery implants, scopes etc.
    Type: Application
    Filed: November 4, 2019
    Publication date: April 16, 2020
    Inventors: John Y. Chang, Joshua Makower, Julia D. Vrany, John H. Morriss, Ketan P. Muni, Isaac J. Kim, Hung V. Ha, William M. Facteau, Amrish J. Walke
  • Patent number: 10610412
    Abstract: Systems and methods are provided for automatically forming an incision in a tympanic membrane of an ear and placing a tympanic membrane pressure equalization tube into the incision. The systems include a housing with a shaft extending therefrom. A mechanism is disposed within the housing. A distal end of the shaft is placed against a tympanic membrane, and the mechanism is triggered to causes the tympanic membrane to be automatically incised and dilated and a tympanic membrane pressure equalization tube to be placed in the dilated incision.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: April 7, 2020
    Assignee: Tusker Medical, Inc.
    Inventors: Greg Liu, Rohit Girotra, John H. Morriss, Julia D. Vrany, Hung V. Ha, Bryan D. Knodel, Jeffrey A. Walker, Thomas D. Gross, Mathew D. Clopp, Bernard H. Andreas
  • Patent number: 10500380
    Abstract: Sinusitis and other disorders of the ear, nose and throat are diagnosed and/or treated using minimally invasive approaches with flexible or rigid instruments. Various methods and devices are used for remodeling or changing the shape, size or configuration of a sinus ostium or duct or other anatomical structure in the ear, nose or throat; implanting a device, cells or tissues; removing matter from the ear, nose or throat; delivering diagnostic or therapeutic substances or performing other diagnostic or therapeutic procedures. Introducing devices (e.g., guide catheters, tubes, guidewires, elongate probes, other elongate members) may be used to facilitate insertion of working devices (e.g. catheters e.g. balloon catheters, guidewires, tissue cutting or remodeling devices, devices for implanting elements like stents, electrosurgical devices, energy emitting devices, devices for delivering diagnostic or therapeutic agents, substance delivery implants, scopes etc.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: December 10, 2019
    Assignee: Acclarent, Inc.
    Inventors: John Y. Chang, Joshua Makower, Julia D. Vrany, John H. Morriss, Ketan P. Muni, Isaac J. Kim, Hung V. Ha, William M. Facteau, Amrish J. Walke
  • Patent number: 10493251
    Abstract: A dilation system includes a handle, a guide member, a balloon dilation member, an actuator, and an endoscope. The handle is configured to provide single-handed use to a user. The guide member is coupled with a distal end of the handle and extends distally therefrom. The balloon dilation member is slidably disposed within the body and the guide member and includes an expandable balloon. The actuator is configured to translate and/or rotate to thereby cause translation and/or rotation of the balloon dilation member. The handle may include a guide member actuator configured to cause translation of the guide member. The handle may further include a rotation mechanism configured to impart rotation upon the guide member. The handle may also include a housing configured to receive and selectively retain the endoscope. The housing is configured to translate and/or rotate to thereby cause translation and/or rotation of the endoscope.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: December 3, 2019
    Assignee: Acclarent, Inc.
    Inventors: Hung V. Ha, Ketan P. Muni, Darius D. Eghbal, James G. Lee, Gregory W. Johnson, Lawrence D. Wasicek
  • Patent number: 10441758
    Abstract: Substance delivering spacer devices may comprise expandable reservoirs that are implantable in paranasal sinuses and other cavities, openings and passageways of the body to maintain patency and to provide sustained local delivery of a therapeutic or diagnostic substance. Delivery apparatus including elongate tubular members as well as shapeable distal portions and atraumatic tips are provided. Also provided are sinus penetrator devices and systems for performing ethmoidotomy procedures or for creating other openings in the walls of paranasal sinuses or other anatomical structures.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: October 15, 2019
    Assignee: Acclarent, Inc.
    Inventors: Ketan P. Muni, Hung V. Ha, Randy S. Chan, Nga K. Van
  • Publication number: 20190240467
    Abstract: A dilation catheter comprises a handle, a guidewire, a dilation catheter, a guidewire movement mechanism, and dilation catheter movement actuator. The guidewire movement mechanism is configured to translate to thereby cause translation of the guidewire relative to the handle. The dilation catheter movement mechanism is configured to translate to thereby cause translation of the dilation catheter relative to the handle. The guidewire movement mechanism also includes a rotation mechanism configured to impart rotation upon the guidewire. The rotation mechanism may include features configured to limit the amount that the guidewire may rotate. The rotation mechanism may also include features configured to convert linear movement of an actuator into rotational movement of the guidewire. The dilation catheter may include features configured to provide for side entry of the guidewire into the dilation catheter.
    Type: Application
    Filed: February 4, 2019
    Publication date: August 8, 2019
    Inventors: Hung V. Ha, Arthur M. Lin, Thomas R. Jenkins, Randy J. Kesten, Scott O. Chamness, Ketan P. Muni