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).
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Patent number: 10966866Abstract: 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: GrantFiled: February 4, 2019Date of Patent: April 6, 2021Assignee: TUSKER MEDICAL, INC.Inventors: Nga K. Van, Mathew D. Clopp, Scott J. Baron, Thomas D. Gross
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Patent number: 10765560Abstract: 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: GrantFiled: June 28, 2018Date of Patent: September 8, 2020Assignee: TUSKER MEDICAL, INC.Inventors: Mathew D. Clopp, Nga K. Van
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Publication number: 20190314205Abstract: 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: ApplicationFiled: February 4, 2019Publication date: October 17, 2019Applicant: Tusker Medical, Inc.Inventors: Nga K. VAN, Mathew D. CLOPP, Scott J. BARON, Thomas D. GROSS
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Patent number: 10441758Abstract: 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: GrantFiled: May 15, 2017Date of Patent: October 15, 2019Assignee: Acclarent, Inc.Inventors: Ketan P. Muni, Hung V. Ha, Randy S. Chan, Nga K. Van
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Patent number: 10195086Abstract: 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: GrantFiled: August 11, 2014Date of Patent: February 5, 2019Assignee: Tusker Medical, Inc.Inventors: Nga K. Van, Mathew D. Clopp, Scott J. Baron, Thomas D. Gross
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Publication number: 20180303673Abstract: 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: ApplicationFiled: June 28, 2018Publication date: October 25, 2018Applicant: Tusker Medical, Inc.Inventors: Mathew D. CLOPP, Nga K. VAN
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Publication number: 20170312485Abstract: 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: ApplicationFiled: May 15, 2017Publication date: November 2, 2017Inventors: Ketan P. Muni, Hung V. Ha, Randy S. Chan, Nga K. Van
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Patent number: 9649477Abstract: 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: GrantFiled: April 30, 2014Date of Patent: May 16, 2017Assignee: Acclarent, Inc.Inventors: Ketan P. Muni, Hung V. Ha, Randy S. Chan, Nga K. Van
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Patent number: 9308361Abstract: 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: GrantFiled: March 4, 2013Date of Patent: April 12, 2016Assignee: 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
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Publication number: 20160038342Abstract: 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: ApplicationFiled: August 11, 2014Publication date: February 11, 2016Inventors: Nga K. Van, Mathew D. Clopp, Scott J. Baron, Thomas D. Gross
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Publication number: 20160038341Abstract: 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: ApplicationFiled: August 8, 2014Publication date: February 11, 2016Inventors: Mathew D. Clopp, Nga K. Van
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Publication number: 20140336575Abstract: 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: ApplicationFiled: April 30, 2014Publication date: November 13, 2014Applicant: Acclarent, Inc.Inventors: Ketan P. Muni, Hung V. Ha, Randy S. Chan, Nga K. Van
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Patent number: 8864787Abstract: 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: GrantFiled: April 9, 2008Date of Patent: October 21, 2014Assignee: 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
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Patent number: 8764729Abstract: 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: GrantFiled: December 22, 2008Date of Patent: July 1, 2014Assignee: Acclarent, Inc.Inventors: Ketan P. Muni, Hung V. Ha, Randy S. Chan, Nga K. Van
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Publication number: 20130245608Abstract: 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: ApplicationFiled: March 4, 2013Publication date: September 19, 2013Applicant: 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
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Patent number: 8388642Abstract: 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: GrantFiled: August 29, 2008Date of Patent: March 5, 2013Assignee: 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
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Patent number: 7785315Abstract: 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: GrantFiled: December 12, 2007Date of Patent: August 31, 2010Assignee: 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
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Publication number: 20090198216Abstract: 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: ApplicationFiled: December 22, 2008Publication date: August 6, 2009Applicant: Acclarent, Inc.Inventors: Ketan P. Muni, Hung V. Ha, Randy S. Chan, Nga K. Van
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Publication number: 20090028923Abstract: 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: ApplicationFiled: August 29, 2008Publication date: January 29, 2009Applicant: 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
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Publication number: 20080287908Abstract: 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: ApplicationFiled: April 9, 2008Publication date: November 20, 2008Applicant: 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