Patents by Inventor Nga K. Van

Nga K. Van 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: 10966866
    Abstract: An instrument comprises a shaft assembly, a handpiece body, and a drive assembly. The shaft assembly comprises a plurality of coaxially arranged shafts and a tympanostomy tube. The shaft assembly further includes a flexible section. The shaft assembly extends distally from the handpiece body. The drive assembly is operable to drive the shafts of the shaft assembly in a predetermined sequence to deploy the tympanostomy tube. One or more of the shafts are configured to translate along the flexible section of the shaft assembly as a part of the predetermined sequence to deploy the tympanostomy tube.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: April 6, 2021
    Assignee: TUSKER MEDICAL, INC.
    Inventors: Nga K. Van, Mathew D. Clopp, Scott J. Baron, Thomas D. Gross
  • Patent number: 10765560
    Abstract: An instrument comprises a handpiece, a boss member, a cylindraceous cam body, a linearly movable member, a cam follower, and a braking member. The cam body is rotatably supported in the handpiece and includes an exterior cam feature. The cam follower couples the linearly movable member with the cam feature of the cam body. The cam feature and the cam follower cooperatively drive the linearly movable member linearly in response to rotation of the cam body within the handpiece. The braking member extends about at least a portion of the exterior of the cam body and is positioned to progressively engage the boss member as the cam body rotates within the handpiece. The braking member and the boss member thus cooperate to provide gradual braking of the cam body. The instrument is operable to deploy a pressure equalization tube in the tympanic membrane of a patient.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: September 8, 2020
    Assignee: TUSKER MEDICAL, INC.
    Inventors: Mathew D. Clopp, Nga K. Van
  • Publication number: 20190314205
    Abstract: An instrument comprises a shaft assembly, a handpiece body, and a drive assembly. The shaft assembly comprises a plurality of coaxially arranged shafts and a tympanostomy tube. The shaft assembly further includes a flexible section. The shaft assembly extends distally from the handpiece body. The drive assembly is operable to drive the shafts of the shaft assembly in a predetermined sequence to deploy the tympanostomy tube. One or more of the shafts are configured to translate along the flexible section of the shaft assembly as a part of the predetermined sequence to deploy the tympanostomy tube.
    Type: Application
    Filed: February 4, 2019
    Publication date: October 17, 2019
    Applicant: Tusker Medical, Inc.
    Inventors: Nga K. VAN, Mathew D. CLOPP, Scott J. BARON, Thomas D. GROSS
  • 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
  • Patent number: 10195086
    Abstract: An instrument comprises a shaft assembly, a handpiece body, and a drive assembly. The shaft assembly comprises a plurality of coaxially arranged shafts and a tympanostomy tube. The shaft assembly further includes a flexible section. The shaft assembly extends distally from the handpiece body. The drive assembly is operable to drive the shafts of the shaft assembly in a predetermined sequence to deploy the tympanostomy tube. One or more of the shafts are configured to translate along the flexible section of the shaft assembly as a part of the predetermined sequence to deploy the tympanostomy tube.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: February 5, 2019
    Assignee: Tusker Medical, Inc.
    Inventors: Nga K. Van, Mathew D. Clopp, Scott J. Baron, Thomas D. Gross
  • Publication number: 20180303673
    Abstract: An instrument comprises a handpiece, a boss member, a cylindraceous cam body, a linearly movable member, a cam follower, and a braking member. The cam body is rotatably supported in the handpiece and includes an exterior cam feature. The cam follower couples the linearly movable member with the cam feature of the cam body. The cam feature and the cam follower cooperatively drive the linearly movable member linearly in response to rotation of the cam body within the handpiece. The braking member extends about at least a portion of the exterior of the cam body and is positioned to progressively engage the boss member as the cam body rotates within the handpiece. The braking member and the boss member thus cooperate to provide gradual braking of the cam body. The instrument is operable to deploy a pressure equalization tube in the tympanic membrane of a patient.
    Type: Application
    Filed: June 28, 2018
    Publication date: October 25, 2018
    Applicant: Tusker Medical, Inc.
    Inventors: Mathew D. CLOPP, Nga K. VAN
  • 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: 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
  • Patent number: 9308361
    Abstract: A method for treating ethmoid disease in human or non-human animal subjects includes inserting a sheath containing an implantable device having an expandable member. The sheath is removed from the implantable device causing the expandable member to expand, allowing for stability of the implantable device in the subject. Stenting, spacing, draining, ventilating and/or delivering drugs and other therapeutic or diagnostic substances to desired locations within the bodies of human or non-human animal subjects may also be involved.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: April 12, 2016
    Assignee: Acclarent, Inc.
    Inventors: Ketan P. Muni, Hung V. Ha, John H. Morriss, William E. Bolger, Joshua Makower, John Y. Chang, Randy S. Chan, Nga K. Van, Anton G. Clifford, William M. Facteau
  • Publication number: 20160038342
    Abstract: An instrument comprises a shaft assembly, a handpiece body, and a drive assembly. The shaft assembly comprises a plurality of coaxially arranged shafts and a tympanostomy tube. The shaft assembly further includes a flexible section. The shaft assembly extends distally from the handpiece body. The drive assembly is operable to drive the shafts of the shaft assembly in a predetermined sequence to deploy the tympanostomy tube. One or more of the shafts are configured to translate along the flexible section of the shaft assembly as a part of the predetermined sequence to deploy the tympanostomy tube.
    Type: Application
    Filed: August 11, 2014
    Publication date: February 11, 2016
    Inventors: Nga K. Van, Mathew D. Clopp, Scott J. Baron, Thomas D. Gross
  • Publication number: 20160038341
    Abstract: An instrument comprises a handpiece, a boss member, a cylindraceous cam body, a linearly movable member, a cam follower, and a braking member. The cam body is rotatably supported in the handpiece and includes an exterior cam feature. The cam follower couples the linearly movable member with the cam feature of the cam body. The cam feature and the cam follower cooperatively drive the linearly movable member linearly in response to rotation of the cam body within the handpiece. The braking member extends about at least a portion of the exterior of the cam body and is positioned to progressively engage the boss member as the cam body rotates within the handpiece. The braking member and the boss member thus cooperate to provide gradual braking of the cam body. The instrument is operable to deploy a pressure equalization tube in the tympanic membrane of a patient.
    Type: Application
    Filed: August 8, 2014
    Publication date: February 11, 2016
    Inventors: Mathew D. Clopp, Nga K. Van
  • Publication number: 20140336575
    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: April 30, 2014
    Publication date: November 13, 2014
    Applicant: Acclarent, Inc.
    Inventors: Ketan P. Muni, Hung V. Ha, Randy S. Chan, Nga K. Van
  • Patent number: 8864787
    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. 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 9, 2008
    Date of Patent: October 21, 2014
    Assignee: Acclarent, Inc.
    Inventors: Ketan P. Muni, Hung V. Ha, John Y. Chang, Randy S. Chan, Nga K. Van, Joshua Makower, William M. Facteau, Howard L. Levine
  • Patent number: 8764729
    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: December 22, 2008
    Date of Patent: July 1, 2014
    Assignee: Acclarent, Inc.
    Inventors: Ketan P. Muni, Hung V. Ha, Randy S. Chan, Nga K. Van
  • Publication number: 20130245608
    Abstract: Devices, systems and methods for stenting, spacing, draining, ventilating and/or delivering drugs and other therapeutic or diagnostic substances to desired locations within the bodies of human or non-human animal subjects, including methods and systems for treating paranasal sinusitis and ethmoid disease.
    Type: Application
    Filed: March 4, 2013
    Publication date: September 19, 2013
    Applicant: Acclarent, Inc.
    Inventors: Ketan P. Muni, Hung V. Ha, John H. Morriss, William E. Bolger, Joshua Makower, John Y. Chang, Randy S. Chan, Nga K. Van, Anton G. Clifford
  • Patent number: 8388642
    Abstract: Devices, systems and methods for stenting, spacing, draining, ventilating and/or delivering drugs and other therapeutic or diagnostic substances to desired locations within the bodies of human or non-human animal subjects, including methods and systems for treating paranasal sinusitis and ethmoid disease.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: March 5, 2013
    Assignee: Acclarent, Inc.
    Inventors: Ketan P. Muni, Hung V. Ha, John H. Morriss, William E. Bolger, William M. Facteau, Joshua Makower, John Y. Chang, Randy S. Chan, Nga K. Van, Anton G. Clifford
  • Patent number: 7785315
    Abstract: Devices, systems and methods for stenting, spacing, draining, ventilating and/or delivering drugs and other therapeutic or diagnostic substances to desired locations within the bodies of human or non-human animal subjects, including methods and systems for treating paranasal sinusitis and ethmoid disease.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: August 31, 2010
    Assignee: Acclarent, Inc.
    Inventors: Ketan P. Muni, Hung V. Ha, John H. Morriss, William E. Bolger, William M. Facteau, Joshua Makower, John Y. Chang, Randy S. Chan, Nga K. Van, Anton G. Clifford
  • Publication number: 20090198216
    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: December 22, 2008
    Publication date: August 6, 2009
    Applicant: Acclarent, Inc.
    Inventors: Ketan P. Muni, Hung V. Ha, Randy S. Chan, Nga K. Van
  • Publication number: 20090028923
    Abstract: Devices, systems and methods for stenting, spacing, draining, ventilating and/or delivering drugs and other therapeutic or diagnostic substances to desired locations within the bodies of human or non-human animal subjects, including methods and systems for treating paranasal sinusitis and ethmoid disease.
    Type: Application
    Filed: August 29, 2008
    Publication date: January 29, 2009
    Applicant: Acclarent, Inc.
    Inventors: Ketan P. Muni, Hung V. Ha, John H. Morriss, William E. Bolger, William M. Facteau, Joshua Makower, John Y. Chang, Randy S. Chan, Nga K. Van, Anton G. Clifford
  • Publication number: 20080287908
    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. 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: April 9, 2008
    Publication date: November 20, 2008
    Applicant: Acclarent, Inc.
    Inventors: Ketan P. Muni, Hung V. Ha, John Y. Chang, Randy S. Chan, Nga K. Van, Joshua Makower, William M. Facteau, Howard L. Levine