Patents by Inventor Waleed H. Hassanein

Waleed H. Hassanein 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: 20200337298
    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: Application
    Filed: June 30, 2020
    Publication date: October 29, 2020
    Inventors: Waleed H. HASSANEIN, Tamer I. KHAYAL, Ahmed ELBETANONY, Paul LEZBERG, Giovanni CECERE, Dennis SOUSA, Elizabeth (Hansen) BULGER
  • Patent number: 10736314
    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: April 26, 2019
    Date of Patent: August 11, 2020
    Assignee: TRANSMEDICS, INC.
    Inventors: Waleed H. Hassanein, Tamer I. Khayal, Ahmed Elbetanony, Paul Lezberg, Giovanni Cecere, Dennis Sousa, Elizabeth (Hansen) Bulger
  • Publication number: 20190269125
    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: Application
    Filed: May 21, 2019
    Publication date: September 5, 2019
    Inventors: Waleed H. HASSANEIN, Ahmed ELBETANONY, Richard BRINGHAM, Robert HAVENER, Vincent LAMBERT, II, Burt OCHS
  • Publication number: 20190261626
    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: Application
    Filed: April 26, 2019
    Publication date: August 29, 2019
    Inventors: Waleed H. HASSANEIN, Tamer I. KHAYAL, Ahmed ELBETANONY, Paul LEZBERG, Giovanni CECERE, Dennis SOUSA, Elizabeth (Hansen) BULGER
  • Publication number: 20190246630
    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: Application
    Filed: April 26, 2019
    Publication date: August 15, 2019
    Inventors: Waleed H. HASSANEIN, Richard BRINGHAM, Giovanni CECERE, Tamer I. KHAYAL, Ronald TAYLOR, Jr., Hossam ALGAMIL
  • 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
  • Publication number: 20180153158
    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: Application
    Filed: December 29, 2017
    Publication date: June 7, 2018
    Inventors: Waleed H. HASSANEIN, Tamer I. KHAYAL, Ahmed ELBETANONY, Paul LEZBERG, Giovanni CECERE, Dennis SOUSA, Elizabeth HANSEN
  • Patent number: 9756850
    Abstract: Compositions, methods, systems/devices and media are provided for maintaining a harvested organ in a functioning and viable state prior to implantation. The organ perfusion apparatus includes a preservation chamber for storing the organ during the preservation period. A perfusion circuit is provided having a first line for providing an oxygenated fluid to the organ, and a second line for carrying depleted fluid away from the organ. The perfusion apparatus also includes a device operably associated with the perfusion circuit for maintaining the organ at a substantially normothermic temperature.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: September 12, 2017
    Assignee: The Department of Veteran Affairs
    Inventors: Waleed H. Hassanein, Shukri Khuri, Michael D. Crittenden, Vladimir Birjinuik
  • Patent number: 9756849
    Abstract: Compositions, methods, systems/devices and media are provided for maintaining a harvested organ in a functioning and viable state prior to implantation. The organ perfusion apparatus includes a preservation chamber for storing the organ during the preservation period. A perfusion circuit is provided having a first line for providing an oxygenated fluid to the organ, and a second line for carrying depleted fluid away from the organ. The perfusion apparatus also includes a device operably associated with the perfusion circuit for maintaining the organ at a substantially normothermic temperature.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: September 12, 2017
    Assignee: The Department of Veteran Affairs
    Inventors: Waleed H. Hassanein, Shukri Khuri, Michael D. Crittenden, Vladimir Birjinuik
  • Patent number: 9756851
    Abstract: Compositions, methods, systems/devices and media are provided for maintaining a harvested organ in a functioning and viable state prior to implantation. The organ perfusion apparatus includes a preservation chamber for storing the organ during the preservation period. A perfusion circuit is provided having a first line for providing an oxygenated fluid to the organ, and a second line for carrying depleted fluid away from the organ. The perfusion apparatus also includes a device operably associated with the perfusion circuit for maintaining the organ at a substantially normothermic temperature.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: September 12, 2017
    Assignee: THE DEPARTMENT OF VETERAN AFFAIRS
    Inventors: Waleed H. Hassanein, Shukri Khuri, Michael D. Crittenden, Vladimir Birjinuik
  • Publication number: 20170156311
    Abstract: Compositions, methods, systems/devices and media are provided for maintaining a harvested organ in a functioning and viable state prior to implantation. The organ perfusion apparatus includes a preservation chamber for storing the organ during the preservation period. A perfusion circuit is provided having a first line for providing an oxygenated fluid to the organ, and a second line for carrying depleted fluid away from the organ. The perfusion apparatus also includes a device operably associated with the perfusion circuit for maintaining the organ at a substantially normothermic temperature.
    Type: Application
    Filed: February 24, 2017
    Publication date: June 8, 2017
    Inventors: Waleed H. HASSANEIN, Shukri KHURI, Michael D. CRITTENDEN, Vladimir BIRJINUIK
  • Publication number: 20170150712
    Abstract: Compositions, methods, systems/devices and media are provided for maintaining a harvested organ in a functioning and viable state prior to implantation. The organ perfusion apparatus includes a preservation chamber for storing the organ during the preservation period. A perfusion circuit is provided having a first line for providing an oxygenated fluid to the organ, and a second line for carrying depleted fluid away from the organ. The perfusion apparatus also includes a device operably associated with the perfusion circuit for maintaining the organ at a substantially normothermic temperature.
    Type: Application
    Filed: February 10, 2017
    Publication date: June 1, 2017
    Inventors: Waleed H. HASSANEIN, Shukri KHURI, Michael D. CRITTENDEN, Vladimir BIRJINUIK