Patents by Inventor Hung H. Cao

Hung H. Cao 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: 20230036786
    Abstract: Apparatus, systems, and methods are provided for repairing heart valves through percutaneous transcatheter delivery and fixation of annuloplasty rings to heart valves. An annuloplasty ring includes an outer hollow body member including a plurality of regions. Adjacent regions cooperate with one another to change the body member from an elongate insertion geometry to an annular operable geometry. Adjacent regions are coupled by a biasing element or a stepped connector to allow expansion to an expanded state and contraction to a contracted state in the annular operable geometry. The annuloplasty ring also includes an internal anchor member located at least partially within the body member and having a plurality of anchors configured to attach the annuloplasty ring to tissue of a heart valve annulus. An angled ring closure lock allows coupling of the ends of an annuloplasty ring at an apex of a D-shape annular operable geometry.
    Type: Application
    Filed: April 11, 2022
    Publication date: February 2, 2023
    Inventors: Samuel M. Shaolian, Jeffrey P. Dumontelle, Nadav Yellin, Victor S. Packham, Hung H. Cao
  • Patent number: 11298230
    Abstract: Apparatus, systems, and methods are provided for repairing heart valves through percutaneous transcatheter delivery and fixation of annuloplasty rings to heart valves. An annuloplasty ring includes an outer hollow body member including a plurality of regions. Adjacent regions cooperate with one another to change the body member from an elongate insertion geometry to an annular operable geometry. Adjacent regions are coupled by a biasing element or a stepped connector to allow expansion to an expanded state and contraction to a contracted state in the annular operable geometry. The annuloplasty ring also includes an internal anchor member located at least partially within the body member and having a plurality of anchors configured to attach the annuloplasty ring to tissue of a heart valve annulus. An angled ring closure lock allows coupling of the ends of an annuloplasty ring at an apex of a D-shape annular operable geometry.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: April 12, 2022
    Assignee: VALCARE, INC.
    Inventors: Samuel M. Shaolian, Jeffrey P. Dumontelle, Nadav Yellin, Victor S. Packham, Hung H. Cao
  • Publication number: 20200146799
    Abstract: An inflated implant, such as an attenuation device, previously implanted in a urinary bladder can later be removed according to a number of different methods. Preferably, removal is accomplished transurethrally. In one embodiment, removal is accomplished by reducing the inflated implant from an enlarged profile to a reduced profile so that it may be withdrawn transurethrally by a removal system. The removal system can be configured differently depending upon whether reduction from the enlarged profile to the reduced profile is accomplished by deflation, compression, and/or other ways.
    Type: Application
    Filed: June 17, 2019
    Publication date: May 14, 2020
    Inventors: Kevin G. Connors, William L. Pintauro, Sheila K. Wallin, John T. Kilcoyne, Hung H. Cao, Khoi M. Nguyen, Matthew T. Yurek
  • Patent number: 10327880
    Abstract: An inflated implant, such as an attenuation device, previously implanted in a urinary bladder can later be removed according to a number of different methods. Preferably, removal is accomplished transurethrally. In one embodiment, removal is accomplished by reducing the inflated implant from an enlarged profile to a reduced profile so that it may be withdrawn transurethrally by a removal system. The removal system can be configured differently depending upon whether reduction from the enlarged profile to the reduced profile is accomplished by deflation, compression, and/or other ways.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: June 25, 2019
    Assignee: AttenueX Technologies, Inc.
    Inventors: Kevin G. Connors, William L. Pintauro, Sheila K. Wallin, John T. Kilcoyne, Hung H. Cao, Khoi M. Nguyen, Matthew T. Yurek
  • Publication number: 20180161160
    Abstract: Apparatus, systems, and methods are provided for repairing heart valves through percutaneous transcatheter delivery and fixation of annuloplasty rings to heart valves. An annuloplasty ring includes an outer hollow body member including a plurality of regions. Adjacent regions cooperate with one another to change the body member from an elongate insertion geometry to an annular operable geometry. Adjacent regions are coupled by a biasing element or a stepped connector to allow expansion to an expanded state and contraction to a contracted state in the annular operable geometry. The annuloplasty ring also includes an internal anchor member located at least partially within the body member and having a plurality of anchors configured to attach the annuloplasty ring to tissue of a heart valve annulus. An angled ring closure lock allows coupling of the ends of an annuloplasty ring at an apex of a D-shape annular operable geometry.
    Type: Application
    Filed: December 11, 2017
    Publication date: June 14, 2018
    Inventors: Samuel M. SHAOLIAN, Jeffrey P. DUMONTELLE, Nadav YELLIN, Victor S. PACKHAM, Hung H. CAO
  • Patent number: 9839519
    Abstract: Apparatus, systems, and methods are provided for repairing heart valves through percutaneous transcatheter delivery and fixation of annuloplasty rings to heart valves. An annuloplasty ring includes an outer hollow body member including a plurality of regions. Adjacent regions cooperate with one another to change the body member from an elongate insertion geometry to an annular operable geometry. Adjacent regions are coupled by a biasing element or a stepped connector to allow expansion to an expanded state and contraction to a contracted state in the annular operable geometry. The annuloplasty ring also includes an internal anchor member located at least partially within the body member and having a plurality of anchors configured to attach the annuloplasty ring to tissue of a heart valve annulus. An angled ring closure lock allows coupling of the ends of an annuloplasty ring at an apex of a D-shape annular operable geometry.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: December 12, 2017
    Assignee: VALCARE, INC.
    Inventors: Samuel M. Shaolian, Jeffrey P. DuMontelle, Nadav Yellin, Victor S. Packham, Hung H. Cao
  • Publication number: 20170079761
    Abstract: An inflated implant, such as an attenuation device, previously implanted in a urinary bladder can later be removed according to a number of different methods. Preferably, removal is accomplished transurethrally. In one embodiment, removal is accomplished by reducing the inflated implant from an enlarged profile to a reduced profile so that it may be withdrawn transurethrally by a removal system. The removal system can be configured differently depending upon whether reduction from the enlarged profile to the reduced profile is accomplished by deflation, compression, and/or other ways.
    Type: Application
    Filed: August 29, 2016
    Publication date: March 23, 2017
    Inventors: Kevin G. Connors, William L. Pintauro, Sheila K. Wallin, Hung H. Cao, Khoi M. Nguyen, Matthew T. Yurek
  • Publication number: 20170065160
    Abstract: An inflated implant, such as an attenuation device, previously implanted in a urinary bladder can later be removed according to a number of different methods. Preferably, removal is accomplished transurethrally. In one embodiment, removal is accomplished by reducing the inflated implant from an enlarged profile to a reduced profile so that it may be withdrawn transurethrally by a removal system. The removal system can be configured differently depending upon whether reduction from the enlarged profile to the reduced profile is accomplished by deflation, compression, and/or other ways.
    Type: Application
    Filed: August 15, 2016
    Publication date: March 9, 2017
    Inventors: Kevin G. Connors, William L. Pintauro, Sheila K. Wallin, Hung H. Cao
  • Patent number: 9433503
    Abstract: Apparatus, systems, and methods are provided for repairing heart valves through percutaneous transcatheter delivery and fixation of annuloplasty rings to heart valves. An annuloplasty ring includes an outer hollow member including a plurality of segments. Adjacent segments cooperate with one another to change the outer hollow member from an elongate insertion geometry to an annular operable geometry. The annuloplasty ring also includes an internal anchor member located at least partially within the outer hollow member. The internal anchor member includes a plurality of anchors configured to attach the annuloplasty ring to tissue of a heart valve annulus. The internal anchor member is configured to move the plurality of anchors with respect to a plurality of windows in the outer hollow member to selectively deploy the plurality of anchors through the respective windows.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: September 6, 2016
    Assignee: Valcare, Inc.
    Inventors: Ross Tsukashima, Samuel M. Shaolian, Maurice Buchbinder, Brian C. Gray, Victor S. Packham, Hung H. Cao
  • Patent number: 9427295
    Abstract: An inflated implant, such as an attenuation device, previously implanted in a urinary bladder can later be removed according to a number of different methods. Preferably, removal is accomplished transurethrally. Removal can be accomplished by reducing the inflated implant from an enlarged profile to a reduced profile so that it may be withdrawn transurethrally by a removal system. The removal system can be configured differently depending upon whether reduction from the enlarged profile to the reduced profile is accomplished by deflation, compression, and/or other ways.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: August 30, 2016
    Inventors: Kevin G. Connors, William L. Pintauro, Sheila K. Wallin, Hung H. Cao
  • Publication number: 20150148588
    Abstract: An inflated implant, such as an attenuation device, previously implanted in a urinary bladder can later be removed according to a number of different methods. Preferably, removal is accomplished transurethrally. In one embodiment, removal is accomplished by reducing the inflated implant from an enlarged profile to a reduced profile so that it may be withdrawn transurethrally by a removal system. The removal system can be configured differently depending upon whether reduction from the enlarged profile to the reduced profile is accomplished by deflation, compression, and/or other ways.
    Type: Application
    Filed: October 10, 2014
    Publication date: May 28, 2015
    Inventors: Kevin G. Connors, William L. Pintauro, Sheila K. Wallin, Hung H. Cao
  • Patent number: 8858460
    Abstract: Measurement of a patient's leak point pressure in the bladder can be taken by a processor in communication with a pressure catheter in the bladder. When leakage occurs pressure data points can be recorded. In some embodiments, the peak pressure can be determined based on pressure data points measured during a set time just before receiving a clinician input indicative that leakage has occurred.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: October 14, 2014
    Assignee: AttenueX Technologies, Inc.
    Inventors: Kevin G. Connors, William L. Pintauro, Sheila K. Wallin, John T. Kilcoyne, Hung H. Cao, Khoi M. Nguyen, Matthew T. Yurek
  • Publication number: 20130289718
    Abstract: Apparatus, systems, and methods are provided for repairing heart valves through percutaneous transcatheter delivery and fixation of annuloplasty rings to heart valves. An annuloplasty ring includes an outer hollow member including a plurality of segments. Adjacent segments cooperate with one another to change the outer hollow member from an elongate insertion geometry to an annular operable geometry. The annuloplasty ring also includes an internal anchor member located at least partially within the outer hollow member. The internal anchor member includes a plurality of anchors configured to attach the annuloplasty ring to tissue of a heart valve annulus. The internal anchor member is configured to move the plurality of anchors with respect to a plurality of windows in the outer hollow member to selectively deploy the plurality of anchors through the respective windows.
    Type: Application
    Filed: July 3, 2013
    Publication date: October 31, 2013
    Inventors: Ross Tsukashima, Samuel M. Shaolian, Maurice Buchbinder, Brian C. Gray, Victor S. Packham, Hung H. Cao
  • Publication number: 20130267868
    Abstract: Measurement of a patient's leak point pressure in the bladder can be taken by a processor in communication with a pressure catheter in the bladder. When leakage occurs pressure data points can be recorded. In some embodiments, the peak pressure can be determined based on pressure data points measured during a set time just before receiving a clinician input indicative that leakage has occurred.
    Type: Application
    Filed: October 25, 2012
    Publication date: October 10, 2013
    Inventors: Kevin G. Connors, William L. Pintauro, Sheila K. Wallin, John T. Kilcoyne, Hung H. Cao, Khoi M. Nguyen, Matthew T. Yurek
  • Patent number: 8518107
    Abstract: Apparatus, systems, and methods are provided for repairing heart valves through percutaneous transcatheter delivery and fixation of annuloplasty rings to heart valves. An annuloplasty ring includes an outer hollow member including a plurality of segments. Adjacent segments cooperate with one another to change the outer hollow member from an elongate insertion geometry to an annular operable geometry. The annuloplasty ring also includes an internal anchor member located at least partially within the outer hollow member. The internal anchor member includes a plurality of anchors configured to attach the annuloplasty ring to tissue of a heart valve annulus. The internal anchor member is configured to move the plurality of anchors with respect to a plurality of windows in the outer hollow member to selectively deploy the plurality of anchors through the respective windows.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: August 27, 2013
    Assignee: ValCare, Inc.
    Inventors: Ross Tsukashima, Samuel M. Shaolian, Maurice Buchbinder, Brian C. Gray, Victor S. Packham, Hung H. Cao
  • Patent number: 8298132
    Abstract: Disclosed herein are methods of treating a patient with benign hypertrophy of the prostate, comprising providing a compressible attenuation device that is moveable from a first, introduction configuration to a second, implanted configuration and attenuating a pressure change within the bladder by reversibly changing the volume of the attenuation device in response to the pressure change. In one embodiment, the attenuation device is advanced percutaneously into the bladder. In another embodiment, the attenuation device is positioned within the bladder to inhibit a decrease in compliance of the bladder wall as a consequence of the benign hypertrophy of the prostate.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: October 30, 2012
    Assignee: AttenueX Technologies, Inc.
    Inventors: Kevin G. Connors, William L. Pintauro, Sheila K. Wallin, John T. Kilcoyne, Hung H. Cao, Khoi M. Nguyen, Mathew T. Yurek
  • Publication number: 20120123531
    Abstract: Apparatus, systems, and methods are provided for repairing heart valves through percutaneous transcatheter delivery and fixation of annuloplasty rings to heart valves. An annuloplasty ring includes an outer hollow member including a plurality of segments. Adjacent segments cooperate with one another to change the outer hollow member from an elongate insertion geometry to an annular operable geometry. The annuloplasty ring also includes an internal anchor member located at least partially within the outer hollow member. The internal anchor member includes a plurality of anchors configured to attach the annuloplasty ring to tissue of a heart valve annulus. The internal anchor member is configured to move the plurality of anchors with respect to a plurality of windows in the outer hollow member to selectively deploy the plurality of anchors through the respective windows.
    Type: Application
    Filed: August 4, 2011
    Publication date: May 17, 2012
    Applicant: MiCardia Corporation
    Inventors: Ross Tsukashima, Samuel M. Shaolian, Maurice Buchbinder, Brian C. Gray, Victor S. Packham, Hung H. Cao
  • Patent number: 7691051
    Abstract: Disclosed herein is an attenuation device, comprising a flexible housing and a high vapor pressure media having a permeability of less than 1 ml/day at body temperature through the outer wall of the flexible housing. In one embodiment, the high vapor pressure media comprises perfluorooctylbromide. In another embodiment, the high vapor pressure media comprises perfluorohexane. In yet another embodiment, the high vapor pressure media comprises perfluorodecalin. Also disclosed herein is a method of treating a patient, comprising providing a compressible attenuation device and introducing within the attenuation device at least one high vapor pressure media.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: April 6, 2010
    Assignee: Cascade Ophthalmics, Inc.
    Inventors: Kevin G. Connors, William L. Pintauro, Sheila K. Wallin, John T. Kilcoyne, Hung H. Cao, Khoi M. Nguyen, Matthew T. Yurek
  • Publication number: 20090105527
    Abstract: Disclosed herein are methods of treating a patient with benign hypertrophy of the prostate, comprising providing a compressible attenuation device that is moveable from a first, introduction configuration to a second, implanted configuration and attenuating a pressure change within the bladder by reversibly changing the volume of the attenuation device in response to the pressure change. In one embodiment, the attenuation device is advanced percutaneously into the bladder. In another embodiment, the attenuation device is positioned within the bladder to inhibit a decrease in compliance of the bladder wall as a consequence of the benign hypertrophy of the prostate.
    Type: Application
    Filed: December 23, 2008
    Publication date: April 23, 2009
    Applicant: ATTENUEX TECHNOLOGIES, INC.
    Inventors: Kevin G. Connors, William L. Pintauro, Sheila K. Wallin, John T. Kilcoyne, Hung H. Cao, Khoi M. Nguyen, Matthew T. Yurek
  • Patent number: 7484510
    Abstract: Disclosed herein is an attenuation device comprising a flexible housing and a medium capable of transformation to inflate the housing from the first configuration to the second configuration. Also disclose herein are methods of treating a patient, comprising: providing a self-inflating expandable attenuation device, containing a medium which is transformable from a first, reduced volume to a second, expanded volume; positioning the attenuation device within the patient at a treatment site; and transforming the medium from the first volume to the second volume. In one embodiment, a self-inflating expandable attenuation device is used to treat glaucoma.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: February 3, 2009
    Assignee: Cascade Ophthalmics, Inc.
    Inventors: Kevin G. Connors, William L. Pintauro, Sheila K. Wallin, John T. Kilcoyne, Hung H. Cao, Khoi M. Nguyen, Matthew T. Yurek