Patents Assigned to TransMedics, Inc.
  • Patent number: 10327443
    Abstract: Electrode systems have been developed for use in perfusion systems to measure the electrical activity of an explanted heart and to provide defibrillation energy as necessary. The perfusion systems maintain the heart in a heating state at, or near, normal physiological conditions; circulating oxygenated, nutrient enriched perfusion fluid to the heart at or near physiological temperature, pressure and flow rate. These systems include a pair of electrodes that are placed epicardially on the right atrium and left ventricle of the explanted heart, as well as an electrode placed in the aortic blood path.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: June 25, 2019
    Assignee: TRANSMEDICS, INC.
    Inventors: Waleed H. Hassanein, Ahmed Elbetanony, Richard Bringham, Robert Havener, Vincent Lambert, II, Burt Ochs
  • Patent number: 10321676
    Abstract: The invention provides, in various embodiments, systems, devices and methods relating to ex-vivo organ care. In certain embodiments, the invention relates to maintaining an organ ex-vivo at near-physiologic conditions. The present application describes a method for using lactate measurement in the arterial and the venous blood lines of the Organ Care System Heart perfusion device to evaluate the: 1) The overall perfusion status of an isolated heart and 2) The metabolic status of an isolated heart and 3) the overall vascular patency of an isolated donor heart. This aspect of the present invention uses the property of myocardial cell's unique ability to produce/generate lactate when they are starved for oxygen and metabolize/utilize lactate for energy production when they are well perfused with oxygen.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: June 18, 2019
    Assignee: TRANSMEDICS, INC.
    Inventors: Waleed H. Hassanein, Tamer I. Khayal, Ahmed Elbetanony, Paul Lezberg, Giovanni Cecere, Dennis Sousa, Elizabeth Hansen Bulger
  • Patent number: 10314303
    Abstract: The invention provides, in various embodiments, systems, devices and methods relating to ex-vivo organ care. In certain embodiments, the invention relates to maintaining an organ ex-vivo at near-physiologic conditions.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: June 11, 2019
    Assignee: TRANSMEDICS, INC.
    Inventors: Waleed H. Hassanein, Richard Bringham, Giovanni Cecere, Tamer I. Khayal, Ronald Taylor, Jr., Hossam Algamil
  • Publication number: 20190110466
    Abstract: The invention provides, in various embodiments, devices and methods relating to ex-vivo organ care. In certain embodiments, the invention relates to aortic cannulas for use in perfusion systems to return perfusate to the heart or delivering perfusate from the heart while the organ is sustained ex vivo at physiologic or near-physiologic conditions.
    Type: Application
    Filed: December 21, 2018
    Publication date: April 18, 2019
    Applicant: TransMedics, Inc.
    Inventors: Greg RITCHIE, Vincent LAMBERT, II, Richard BRINGHAM, John SULLIVAN, Waleed H. HASSANEIN
  • Patent number: 10194655
    Abstract: The invention provides, in various embodiments, devices and methods relating to ex-vivo organ care. In certain embodiments, the invention relates to aortic cannulas for use in perfusion systems to return perfusate to the heart or delivering perfusate from the heart while the organ is sustained ex vivo at physiologic or near-physiologic conditions.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: February 5, 2019
    Assignee: TRANSMEDICS, INC.
    Inventors: Greg Ritchie, Vincent Lambert, II, Richard Bringham, John Sullivan, Waleed H. Hassanein
  • Publication number: 20190021308
    Abstract: The invention generally relates to systems, methods, and devices for ex vivo organ care. More particularly, in various embodiments, the invention relates to caring for a liver ex vivo at physiologic or near-physiologic conditions.
    Type: Application
    Filed: September 13, 2018
    Publication date: January 24, 2019
    Applicant: TransMedics, Inc.
    Inventors: Waleed H. HASSANEIN, Tamer I. KHAYAL, Ahmed ELBETANONY, Jeff BARNES, Greg RITCHIE, Richard BRINGHAM, Mark ANDERSON, John SULLIVAN
  • Publication number: 20190014774
    Abstract: The invention, in various embodiments, provides systems, methods and solutions for perfusing an organ.
    Type: Application
    Filed: August 2, 2018
    Publication date: January 17, 2019
    Applicant: TransMedics, Inc.
    Inventors: Waleed H. HASSANEIN, Tamer I. KHAYAL, Paul LEZBERG
  • Patent number: 10076112
    Abstract: The invention generally relates to systems, methods, and devices for ex vivo organ care. More particularly, in various embodiments, the invention relates to caring for a liver ex vivo at physiologic or near-physiologic conditions.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: September 18, 2018
    Assignee: TRANSMEDIC, INC.
    Inventors: Waleed H. Hassanein, Tamer I. Khayal, Ahmed Elbetanony, Jeff Barnes, Greg Ritchie, Richard Bringham, Mark Anderson, John Sullivan
  • Patent number: 10039276
    Abstract: The invention, in various embodiments, provides systems, methods and solutions for perfusing an organ.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: August 7, 2018
    Assignee: TRANSMEDICS, INC.
    Inventors: Waleed H. Hassanein, Tamer I. Khayal, Paul Lezberg
  • Patent number: 9894894
    Abstract: The invention provides, in various embodiments, systems, devices and methods relating to ex-vivo organ care. In certain embodiments, the invention relates to maintaining an organ ex-vivo at near-physiologic conditions. The present application describes a method for using lactate measurement in the arterial and the venous blood lines of the Organ Care System Heart perfusion device to evaluate the: 1) The overall perfusion status of an isolated heart and 2) The metabolic status of an isolated heart and 3) the overall vascular patency of an isolated donor heart. This aspect of the present invention uses the property of myocardial cell's unique ability to produce/generate lactate when they are starved for oxygen and metabolize/utilize lactate for energy production when they are well perfused with oxygen.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: February 20, 2018
    Assignee: TRANSMEDICS, INC.
    Inventors: Waleed Hassanein, Tamer Khayal, Ahmed Elbetanony, Paul Lezberg, Giovanni Cecere, Dennis Sousa, Elizabeth Hansen
  • Patent number: 9814230
    Abstract: Methods and systems of maintaining, evaluating, and providing therapy to a lung ex vivo. The methods and systems involve positioning the lung in an ex vivo perfusion circuit; circulating a perfusion fluid through the lung, the fluid entering the lung through a pulmonary artery interface and leaving the lung through a left atrial interface; and ventilating the lung by flowing a ventilation gas through a tracheal interface. Maintaining the lung for extended periods involves causing the lung to rebreath a captive volume of air, and reaching an equilibrium state between the perfusion fluid and the ventilation gas. Evaluating the gas exchange capability of the lung involves deoxygenating the perfusion fluid and measuring a time taken to reoxygenate the perfusion fluid by ventilating the lung with an oxygenation gas.
    Type: Grant
    Filed: April 8, 2008
    Date of Patent: November 14, 2017
    Assignee: TRANSMEDICS, INC.
    Inventors: Robert Fishman, Robert Havener, Ihab Abdel Fattah, Anas Abdelazim, Scott Newell, Tom Bishop, Tamer Khayal, Stanley Kyi, Ron Taylor, Doug Harriott, Matthew De Remer, Paul Murray, John Sullivan, Mark Anderson, Richard Bringham, Michael Van Driel, Waleed Hassanein
  • Publication number: 20160374332
    Abstract: Electrode systems have been developed for use in perfusion systems to measure the electrical activity of an explanted heart and to provide defibrillation energy as necessary. The perfusion systems maintain the heart in a heating state at, or near, normal physiological conditions; circulating oxygenated, nutrient enriched perfusion fluid to the heart at or near physiological temperature, pressure and flow rate. These systems include a pair of electrodes that are placed epicardially on the right atrium and left ventricle of the explanted heart, as well as an electrode placed in the aortic blood path.
    Type: Application
    Filed: July 11, 2016
    Publication date: December 29, 2016
    Applicant: TransMedics, Inc
    Inventors: Waleed H. HASSANEIN, Ahmed ELBETANONY, Richard BRINGHAM, Robert HAVENER, Vincent LAMBERT, II, Burt OCHS
  • Patent number: 9516875
    Abstract: Methods and systems of maintaining, evaluating, and providing therapy to a lung ex vivo. The methods and systems involve positioning the lung in an ex vivo perfusion circuit; circulating a perfusion fluid through the lung, the fluid entering the lung through a pulmonary artery interface and leaving the lung through a left atrial interface; and ventilating the lung by flowing a ventilation gas through a tracheal interface. Maintaining the lung for extended periods involves causing the lung to rebreath a captive volume of air, and reaching an equilibrium state between the perfusion fluid and the ventilation gas. Evaluating the gas exchange capability of the lung involves deoxygenating the perfusion fluid and measuring a time taken to reoxygenate the perfusion fluid by ventilating the lung with an oxygenation gas.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: December 13, 2016
    Assignee: TRANSMEDICS, INC.
    Inventors: Robert Fishman, Robert Havener, Ihab A. Fattah, Anas Abdelazim, Scott Newell, Thomas H. Bishop, Tamer I. Khayal, Stanley Kyi, Ron Taylor, Jr., Doug Harriott, Matthew De Remer, Paul Murray, John Sullivan, Mark Anderson, Richard Bringham, Michael Van Driel, Waleed H. Hassanein
  • Patent number: 9462802
    Abstract: Methods and systems of maintaining, evaluating, and providing therapy to a lung ex vivo. The methods and systems involve positioning the lung in an ex vivo perfusion circuit; circulating a perfusion fluid through the lung, the fluid entering the lung through a pulmonary artery interface and leaving the lung through a left atrial interface; and ventilating the lung by flowing a ventilation gas through a tracheal interface. Maintaining the lung for extended periods involves causing the lung to rebreath a captive volume of air, and reaching an equilibrium state between the perfusion fluid and the ventilation gas. Evaluating the gas exchange capability of the lung involves deoxygenating the perfusion fluid and measuring a time taken to reoxygenate the perfusion fluid by ventilating the lung with an oxygenation gas.
    Type: Grant
    Filed: April 8, 2008
    Date of Patent: October 11, 2016
    Assignee: TRANSMEDICS, INC.
    Inventors: Robert Fishman, Robert Havener, Ihab Abdel Fattah, Anas Abdelazim, Scott Newell, Tom Bishop, Tamer Khayal, Stanley Kyi, Ron Taylor, Doug Harriott, Matthew De Remer, Paul Murray, John Sullivan, Mark Anderson, Richard Bringham, Michael Van Driel, Waleed Hassanein
  • Patent number: 9457179
    Abstract: Electrode systems have been developed for use in perfusion systems to measure the electrical activity of an explanted heart and to provide defibrillation energy as necessary. The perfusion systems maintain the heart in a beating state at, or near, normal physiological conditions; circulating oxygenated, nutrient enriched perfusion fluid to the heart at or near physiological temperature, pressure and flow rate. These systems include a pair of electrodes that are placed epicardially on the right atrium and left ventricle of the explanted heart, as well as an electrode placed in the aortic blood path.
    Type: Grant
    Filed: July 6, 2007
    Date of Patent: October 4, 2016
    Assignee: TRANSMEDICS, INC.
    Inventors: Waleed Hassanein, Ahmed Elbetanony, Richard Bringham, Robert Havener, Vincent Lambert, II, Burt Ochs
  • Patent number: 9301519
    Abstract: The invention provides, in various embodiments, systems, devices and methods relating to ex-vivo organ care. In certain embodiments, the invention relates to maintaining an organ ex-vivo at near-physiologic conditions.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: April 5, 2016
    Assignee: TRANSMEDICS, INC.
    Inventors: Waleed Hassanein, Richard Bringham, Giovanni Cecere, Ahmed Elbetanony, Robert Fishman, Larry Goff, Tamer Khayal, Stanley Kyi, Scott Newell, Burt Ochs, Dennis Sousa, Ronald Taylor, Jonathan Rourke, Hossam Algamil, David Carpenter, Robert Havner
  • Patent number: 9247728
    Abstract: Methods and systems of maintaining, evaluating, and providing therapy to a lung ex vivo. The methods and systems involve positioning the lung in an ex vivo perfusion circuit; circulating a perfusion fluid through the lung, the fluid entering the lung through a pulmonary artery interface and leaving the lung through a left atrial interface; and ventilating the lung by flowing a ventilation gas through a tracheal interface. Maintaining the lung for extended periods involves causing the lung to rebreath a captive volume of air, and reaching an equilibrium state between the perfusion fluid and the ventilation gas. Evaluating the gas exchange capability of the lung involves deoxygenating the perfusion fluid and measuring a time taken to reoxygenate the perfusion fluid by ventilating the lung with an oxygenation gas.
    Type: Grant
    Filed: April 8, 2008
    Date of Patent: February 2, 2016
    Assignee: TRANSMEDICS, INC.
    Inventors: Robert Fishman, Robert Havener, Ihab Abdel Fattah, Anas Abdelazim, Scott Newell, Tom Bishop, Tamer Khayal, Stanley Kyi, Ron Taylor, Doug Harriott, Matthew De Remer, Paul Murray, John Sullivan, Mark Anderson, Richard Bringham, Michael Van Driel, Waleed Hassanein
  • Patent number: 9215867
    Abstract: The invention provides, in various embodiments, systems, devices and methods relating to ex-vivo organ care. In certain embodiments, the invention relates to maintaining an organ ex-vivo at near-physiologic conditions.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: December 22, 2015
    Assignee: TRANSMEDICS, INC.
    Inventors: Waleed Hassanein, Richard Bringham, Giovanni Cecere, Tamer Khayal, Ronald Taylor, Hossam Algamil
  • Publication number: 20150342176
    Abstract: The invention, in various embodiments, provides systems, methods and solutions for perfusing an organ.
    Type: Application
    Filed: June 9, 2015
    Publication date: December 3, 2015
    Applicant: TRANSMEDICS, INC
    Inventors: Waleed H. HASSANEIN, Tamer I. KHAYAL, Paul LEZBERG
  • Patent number: 9078428
    Abstract: The invention, in various embodiments, provides systems, methods and solutions for perfusing an organ.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: July 14, 2015
    Assignee: TransMedics, Inc.
    Inventors: Waleed Hassanein, Paul Lezberg, Tamer Khayal