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).

  • Patent number: 10098652
    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: June 21, 2016
    Date of Patent: October 16, 2018
    Assignee: Acclarent, Inc.
    Inventors: Eric Goldfarb, John Y. Chang, William M. Facteau, Sivette Lam, Hung V. Ha, Isaac J. Kim, Ketan P. Muni
  • Publication number: 20180279855
    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: Application
    Filed: March 22, 2018
    Publication date: October 4, 2018
    Inventors: Randy J. Kesten, Ketan P. Muni, James Patrick Garvey, II, Hung V. Ha, Andy Nguyen
  • Patent number: 10085889
    Abstract: A method of dilating a first Eustachian tube (ET) and a second ET of a patient using a dilation catheter includes directing the dilation catheter into the mouth of the patient and 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. The method further includes expanding the expandable member to thereby dilate the first ET. The method may further include repositioning the dilation catheter relative to a second ET on another side of the patient's head and advancing the dilation catheter into the second ET while a proximal portion of the dilation catheter is disposed in the mouth of the patient. The method may further include expanding the expandable member to thereby dilate the second ET.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: October 2, 2018
    Assignee: Acclarent, Inc.
    Inventors: Randy S. Chan, Ketan P. Muni, Hung V. Ha, Andy Nguyen
  • Patent number: 10070993
    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: October 30, 2015
    Date of Patent: September 11, 2018
    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: 20180214671
    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: Application
    Filed: February 5, 2018
    Publication date: August 2, 2018
    Inventors: Ketan P. Muni, Hung V. Ha, Chi Nguyen, Randy S. Chan, John Y. Chang
  • Patent number: 10034681
    Abstract: A system for dilating a Eustachian tube (ET) of a patient includes a guide member and a dilation catheter. The guide member includes a bent distal portion that is configured to provide access to an opening in the ET. The dilation catheter is slidable relative to the guide member. The dilation catheter includes a shaft, an expandable element, and an actuator. The expandable element is disposed at the distal portion of the shaft. The actuator includes a grasping portion and an actuating member. The expandable element is configured to transition to an expanded configuration in response to actuation of the actuating member. 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.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: July 31, 2018
    Assignee: Acclarent, Inc.
    Inventors: Randy S. Chan, Siddhi K. Desai, Ketan P. Muni, Hung V. Ha, Andrew Drake
  • Publication number: 20180125348
    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: November 3, 2017
    Publication date: May 10, 2018
    Inventors: Joshua Makower, John Y. Chang, Ketan P. Muni, John H. Morriss, Hung V. Ha, Isaac J. Kim, Julia D. Vrany
  • Patent number: 9955852
    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: August 14, 2015
    Date of Patent: May 1, 2018
    Assignee: ACCLARENT, INC.
    Inventors: Randy J. Kesten, Ketan P. Muni, James Patrick Garvey, II, Hung V. Ha, Andy Nguyen
  • Publication number: 20180110407
    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: October 27, 2017
    Publication date: April 26, 2018
    Inventors: Joshua Makower, John Y. Chang, Ketan P. Muni, John H. Morriss, Hung V. Ha, Isaac J. Kim, Julia D. Vrany
  • Patent number: 9931026
    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 defines a longitudinal axis. The dilation catheter comprises an expandable dilator and is movable relative to the guide member. 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 dilation catheter.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: April 3, 2018
    Assignee: ACCLARENT, INC.
    Inventors: Hung V. Ha, Ketan P. Muni, Andy Nguyen, Randy S. Chan
  • Patent number: 9913964
    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: September 24, 2009
    Date of Patent: March 13, 2018
    Assignee: Acclarnet, Inc.
    Inventors: Ketan P. Muni, Hung V. Ha, Chi Nguyen, Randy S. Chan, John Y. Chang
  • Publication number: 20180055693
    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: Application
    Filed: August 11, 2017
    Publication date: March 1, 2018
    Applicant: 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
  • Publication number: 20180001065
    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: July 17, 2017
    Publication date: January 4, 2018
    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: 9814379
    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 30, 2007
    Date of Patent: November 14, 2017
    Assignee: Acclarent, Inc.
    Inventors: Joshua Makower, John Y. Chang, Ketan P. Muni, John H. Morriss, Hung V. Ha, Isaac J. Kim, Julia D. Vrany
  • Publication number: 20170312485
    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: Application
    Filed: May 15, 2017
    Publication date: November 2, 2017
    Inventors: Ketan P. Muni, Hung V. Ha, Randy S. Chan, Nga K. Van
  • Patent number: 9770366
    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: December 15, 2014
    Date of Patent: September 26, 2017
    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, Matthew D. Clopp, Bernard H. Andreas
  • Publication number: 20170197067
    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: Application
    Filed: January 27, 2017
    Publication date: July 13, 2017
    Inventors: Eric Goldfarb, John Y. Chang, William M. Facteau, Sivette Lam, Hung V. Ha, Isaac J. Kim, Ketan P. Muni
  • Patent number: 9649477
    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: April 30, 2014
    Date of Patent: May 16, 2017
    Assignee: Acclarent, Inc.
    Inventors: Ketan P. Muni, Hung V. Ha, Randy S. Chan, Nga K. Van
  • Publication number: 20170119993
    Abstract: A system for delivering a fluid to a Eustachian tube (ET) of a patient includes a guide member and a tubular member. The guide member includes a shaft having a proximal portion, a distal portion, and a bend at the distal portion. The bend is configured to provide access to an opening in the ET. The system further includes a tubular member comprising a proximal end, a distal end, and a lumen extending therebetween. The tubular member is sized to fit within the ET. One or both of the tubular member and the guide member comprises a first stop member configured to engage the other of the tubular member or the guide member. The first stop member is configured to restrict a distal advancement of the tubular member relative to the guide member.
    Type: Application
    Filed: October 30, 2015
    Publication date: May 4, 2017
    Inventors: Siddhi K. Desai, Hung V. Ha, Ketan P. Muni, Randy S. Chan, Andy Nguyen, Mina Wai-Bing Chow, Mei Pader
  • Publication number: 20170119583
    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: October 30, 2015
    Publication date: May 4, 2017
    Inventors: Randy S. Chan, Ketan P. Muni, Hung V. Ha, Andy Nguyen, Holger Sudhoff, Sivette Lam, Marc Dean, Dennis S. Poe