Patents by Inventor Tak G. Cheung

Tak G. Cheung 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: 12016776
    Abstract: Devices and related methods of use are provided for improving heart function. In one embodiment of the present disclosure, a device includes a ring-like structure configured to be secured to a heart valve; at least one elongate member extending from the ring-like structure, wherein an end of the elongate member is configured to be secured to heart geometry other than a heart valve; and an adjustment mechanism for simultaneously altering a dimension of the ring-like structure and a length of the elongate member.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: June 25, 2024
    Assignee: EDWARDS LIFESCIENCES CORPORATION
    Inventors: Donald E Bobo, Jr., Assaf Bash, Louis A Campbell, Alison S. Curtis, Tak G. Cheung, John F. Migliazza
  • Patent number: 11963869
    Abstract: A valved conduit including a bioprosthetic valve, such as a heart valve, and a tubular conduit sealed with a bioresorbable material. The bioprosthetic heart valve includes prosthetic tissue that has been treated such that the tissue may be stored dry for extended periods without degradation of functionality of the valve. The bioprosthetic heart valve may have separate bovine pericardial leaflets or a whole porcine valve. The sealed conduit includes a tubular matrix impregnated with a bioresorbable medium such as gelatin or collagen. The valved conduit is stored dry in packaging in which a desiccant pouch is supplied having a capacity for absorbing moisture within the packaging limited to avoid drying the bioprosthetic tissue out beyond a point where its ability to function in the bioprosthetic heart valve is compromised. The heart valve may be sewn within the sealed conduit or coupled thereto with a snap-fit connection.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: April 23, 2024
    Assignee: EDWARDS LIFESCIENCES CORPORATION
    Inventors: Louis A. Campbell, Donald E. Bobo, Jr., Gregory A. Wright, Tak G. Cheung
  • Publication number: 20220079752
    Abstract: A valved conduit including a bioprosthetic valve, such as a heart valve, and a tubular conduit sealed with a bioresorbable material. The bioprosthetic heart valve includes prosthetic tissue that has been treated such that the tissue may be stored dry for extended periods without degradation of functionality of the valve. The bioprosthetic heart valve may have separate bovine pericardial leaflets or a whole porcine valve. The sealed conduit includes a tubular matrix impregnated with a bioresorbable medium such as gelatin or collagen. The valved conduit is stored dry in packaging in which a desiccant pouch is supplied having a capacity for absorbing moisture within the packaging limited to avoid drying the bioprosthetic tissue out beyond a point where its ability to function in the bioprosthetic heart valve is compromised. The heart valve may be sewn within the sealed conduit or coupled thereto with a snap-fit connection.
    Type: Application
    Filed: November 22, 2021
    Publication date: March 17, 2022
    Inventors: Louis A. Campbell, Donald E. Bobo, JR., Gregory A. Wright, Tak G. Cheung
  • Patent number: 11179238
    Abstract: A valved conduit including a bioprosthetic valve, such as a heart valve, and a tubular conduit sealed with a bioresorbable material. The bioprosthetic heart valve includes prosthetic tissue that has been treated such that the tissue may be stored dry for extended periods without degradation of functionality of the valve. The bioprosthetic heart valve may have separate bovine pericardial leaflets or a whole porcine valve. The sealed conduit includes a tubular matrix impregnated with a bioresorbable medium such as gelatin or collagen. The valved conduit is stored dry in packaging in which a desiccant pouch is supplied having a capacity for absorbing moisture within the packaging limited to avoid drying the bioprosthetic tissue out beyond a point where its ability to function in the bioprosthetic heart valve is compromised. The heart valve may be sewn within the sealed conduit or coupled thereto with a snap-fit connection.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: November 23, 2021
    Assignee: Edwards Lifesciences Corporation
    Inventors: Louis A. Campbell, Donald E. Bobo, Jr., Gregory A. Wright, Tak G. Cheung
  • Publication number: 20200163764
    Abstract: Devices and related methods of use are provided for improving heart function. In one embodiment of the present disclosure, a device includes a ring-like structure configured to be secured to a heart valve; at least one elongate member extending from the ring-like structure, wherein an end of the elongate member is configured to be secured to heart geometry other than a heart valve; and an adjustment mechanism for simultaneously altering a dimension of the ring-like structure and a length of the elongate member.
    Type: Application
    Filed: January 31, 2020
    Publication date: May 28, 2020
    Inventors: Donald E. Bobo, JR., Assaf Bash, Louis A. Campbell, Alison S. Curtis, Tak G. Cheung, John F. Migliazza
  • Publication number: 20200060816
    Abstract: A valved conduit including a bioprosthetic valve, such as a heart valve, and a tubular conduit sealed with a bioresorbable material. The bioprosthetic heart valve includes prosthetic tissue that has been treated such that the tissue may be stored dry for extended periods without degradation of functionality of the valve. The bioprosthetic heart valve may have separate bovine pericardial leaflets or a whole porcine valve. The sealed conduit includes a tubular matrix impregnated with a bioresorbable medium such as gelatin or collagen. The valved conduit is stored dry in packaging in which a desiccant pouch is supplied having a capacity for absorbing moisture within the packaging limited to avoid drying the bioprosthetic tissue out beyond a point where its ability to function in the bioprosthetic heart valve is compromised. The heart valve may be sewn within the sealed conduit or coupled thereto with a snap-fit connection.
    Type: Application
    Filed: October 28, 2019
    Publication date: February 27, 2020
    Inventors: Louis A. Campbell, Donald E. Bobo, JR., Gregory A. Wright, Tak G. Cheung
  • Patent number: 10548730
    Abstract: Devices and related methods of use are provided for improving heart function. In one embodiment of the present disclosure, a device includes a ring-like structure configured to be secured to a heart valve; at least one elongate member extending from the ring-like structure, wherein an end of the elongate member is configured to be secured to heart geometry other than a heart valve; and an adjustment mechanism for simultaneously altering a dimension of the ring-like structure and a length of the elongate member.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: February 4, 2020
    Assignee: Edwards Lifesciences Corporation
    Inventors: Donald E. Bobo, Jr., Assaf Bash, Louis A. Campbell, Alison S. Curtis, Tak G. Cheung, John F. Migliazza
  • Patent number: 10456250
    Abstract: A valved conduit including a bioprosthetic valve, such as a heart valve, and a tubular conduit sealed with a bioresorbable material. The bioprosthetic heart valve includes prosthetic tissue that has been treated such that the tissue may be stored dry for extended periods without degradation of functionality of the valve. The bioprosthetic heart valve may have separate bovine pericardial leaflets or a whole porcine valve. The sealed conduit includes a tubular matrix impregnated with a bioresorbable medium such as gelatin or collagen. The valved conduit is stored dry in packaging in which a desiccant pouch is supplied having a capacity for absorbing moisture within the packaging limited to avoid drying the bioprosthetic tissue out beyond a point where its ability to function in the bioprosthetic heart valve is compromised. The heart valve may be sewn within the sealed conduit or coupled thereto with a snap-fit connection.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: October 29, 2019
    Assignee: Edwards Lifesciences Corporation
    Inventors: Louis A. Campbell, Donald E. Bobo, Jr., Gregory A. Wright, Tak G. Cheung
  • Publication number: 20190069999
    Abstract: A valved conduit including a bioprosthetic valve, such as a heart valve, and a tubular conduit sealed with a bioresorbable material. The bioprosthetic heart valve includes prosthetic tissue that has been treated such that the tissue may be stored dry for extended periods without degradation of functionality of the valve. The bioprosthetic heart valve may have separate bovine pericardial leaflets or a whole porcine valve. The sealed conduit includes a tubular matrix impregnated with a bioresorbable medium such as gelatin or collagen. The valved conduit is stored dry in packaging in which a desiccant pouch is supplied having a capacity for absorbing moisture within the packaging limited to avoid drying the bioprosthetic tissue out beyond a point where its ability to function in the bioprosthetic heart valve is compromised. The heart valve may be sewn within the sealed conduit or coupled thereto with a snap-fit connection.
    Type: Application
    Filed: November 8, 2018
    Publication date: March 7, 2019
    Inventors: Louis A. Campbell, Donald E. Bobo, JR., Gregory A. Wright, Tak G. Cheung
  • Patent number: 10130466
    Abstract: A valved conduit including a bioprosthetic valve, such as a heart valve, and a tubular conduit sealed with a bioresorbable material. The bioprosthetic heart valve includes prosthetic tissue that has been treated such that the tissue may be stored dry for extended periods without degradation of functionality of the valve. The bioprosthetic heart valve may have separate bovine pericardial leaflets or a whole porcine valve. The sealed conduit includes a tubular matrix impregnated with a bioresorbable medium such as gelatin or collagen. The valved conduit is stored dry in packaging in which a desiccant pouch is supplied having a capacity for absorbing moisture within the packaging limited to avoid drying the bioprosthetic tissue out beyond a point where its ability to function in the bioprosthetic heart valve is compromised. The heart valve may be sewn within the sealed conduit or coupled thereto with a snap-fit connection.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: November 20, 2018
    Assignee: Edwards Lifesciences Corporation
    Inventors: Louis A. Campbell, Donald E. Bobo, Jr., Gregory A. Wright, Tak G. Cheung
  • Publication number: 20180036126
    Abstract: Devices and related methods of use are provided for improving heart function. In one embodiment of the present disclosure, a device includes a ring-like structure configured to be secured to a heart valve; at least one elongate member extending from the ring-like structure, wherein an end of the elongate member is configured to be secured to heart geometry other than a heart valve; and an adjustment mechanism for simultaneously altering a dimension of the ring-like structure and a length of the elongate member.
    Type: Application
    Filed: October 16, 2017
    Publication date: February 8, 2018
    Inventors: Donald E. Bobo, JR., Assaf Bash, Louis A. Campbell, Alison S. Curtis, Tak G. Cheung, John F. Migliazza
  • Patent number: 9788946
    Abstract: Devices and related methods of use are provided for improving heart function. In one embodiment of the present disclosure, a device includes a ring-like structure configured to be secured to a heart valve; at least one elongate member extending from the ring-like structure, wherein an end of the elongate member is configured to be secured to heart geometry other than a heart valve; and an adjustment mechanism for simultaneously altering a dimension of the ring-like structure and a length of the elongate member.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: October 17, 2017
    Assignee: Edwards Lifesciences Corporation
    Inventors: Donald E. Bobo, Jr., Assaf Bash, Louis A. Campbell, Alison S. Curtis, Tak G. Cheung, John F. Migliazza
  • Publication number: 20160270913
    Abstract: A valved conduit including a bioprosthetic valve, such as a heart valve, and a tubular conduit sealed with a bioresorbable material. The bioprosthetic heart valve includes prosthetic tissue that has been treated such that the tissue may be stored dry for extended periods without degradation of functionality of the valve. The bioprosthetic heart valve may have separate bovine pericardial leaflets or a whole porcine valve. The sealed conduit includes a tubular matrix impregnated with a bioresorbable medium such as gelatin or collagen. The valved conduit is stored dry in packaging in which a desiccant pouch is supplied having a capacity for absorbing moisture within the packaging limited to avoid drying the bioprosthetic tissue out beyond a point where its ability to function in the bioprosthetic heart valve is compromised. The heart valve may be sewn within the sealed conduit or coupled thereto with a snap-fit connection.
    Type: Application
    Filed: March 24, 2016
    Publication date: September 22, 2016
    Inventors: Louis A. Campbell, Donald E. Bobo, JR., Gregory A. Wright, Tak G. Cheung
  • Patent number: 9301835
    Abstract: A valved conduit including a bioprosthetic valve, such as a heart valve, and a tubular conduit sealed with a bioresorbable material. The bioprosthetic heart valve includes prosthetic tissue that has been treated such that the tissue may be stored dry for extended periods without degradation of functionality of the valve. The bioprosthetic heart valve may have separate bovine pericardial leaflets or a whole porcine valve. The sealed conduit includes a tubular matrix impregnated with a bioresorbable medium such as gelatin or collagen. The valved conduit is stored dry in packaging in which a desiccant pouch is supplied having a capacity for absorbing moisture within the packaging limited to avoid drying the bioprosthetic tissue out beyond a point where its ability to function in the bioprosthetic heart valve is compromised. The heart valve may be sewn within the sealed conduit or coupled thereto with a snap-fit connection.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: April 5, 2016
    Assignee: Edwards Lifesciences Corporation
    Inventors: Louis A. Campbell, Donald E. Bobo, Jr., Gregory A. Wright, Tak G. Cheung
  • Publication number: 20150351909
    Abstract: Devices and related methods of use are provided for improving heart function. In one embodiment of the present disclosure, a device includes a ring-like structure configured to be secured to a heart valve; at least one elongate member extending from the ring-like structure, wherein an end of the elongate member is configured to be secured to heart geometry other than a heart valve; and an adjustment mechanism for simultaneously altering a dimension of the ring-like structure and a length of the elongate member.
    Type: Application
    Filed: August 14, 2015
    Publication date: December 10, 2015
    Inventors: Donald E. Bobo, Jr., Assaf Bash, Louis A. Campbell, Alison S. Curtis, Tak G. Cheung, John F. Migliazza
  • Publication number: 20130325111
    Abstract: A valved conduit including a bioprosthetic valve, such as a heart valve, and a tubular conduit sealed with a bioresorbable material. The bioprosthetic heart valve includes prosthetic tissue that has been treated such that the tissue may be stored dry for extended periods without degradation of functionality of the valve. The bioprosthetic heart valve may have separate bovine pericardial leaflets or a whole porcine valve. The sealed conduit includes a tubular matrix impregnated with a bioresorbable medium such as gelatin or collagen. The valved conduit is stored dry in packaging in which a desiccant pouch is supplied having a capacity for absorbing moisture within the packaging limited to avoid drying the bioprosthetic tissue out beyond a point where its ability to function in the bioprosthetic heart valve is compromised. The heart valve may be sewn within the sealed conduit or coupled thereto with a snap-fit connection.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 5, 2013
    Inventors: Louis A. Campbell, Donald E. Bobo, JR., Gregory A. Wright, Tak G. Cheung