Patents by Inventor John M. Toomasian

John M. Toomasian 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).

  • Methods and devices for maintaining cardiopulmonary bypass and arresting a patient's heart
    Patent number: 6974434
    Abstract: An endovascular system for arresting a patient's heart and maintaining the patient on cardiopulmonary bypass. A venous cannula, venting catheter and an aortic occlusion device are all coupled together so that the blood drawn into each of these catheters may be fed to a pump. A manifold has valves which control flows through the venous cannula, venting catheter and aortic occlusion device. A blood storage element is also provided so that the amount of blood in the perfusion circuit may be varied if necessary. The blood storage element is preferably positioned in parallel with the pump so that the pump may be used to add and remove blood to and from the blood storage element.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: December 13, 2005
    Assignee: Heartport, Inc.
    Inventors: Craig P. Roberts, John M. Toomasian, Sylvia W. Fan
  • Methods and devices for maintaining cardiopulmonary bypass and arresting a patient's heart
    Publication number: 20020176797
    Abstract: An endovascular system for arresting a patient's heart and maintaining the patient on cardiopulmonary bypass. A venous cannula, venting catheter and an aortic occlusion device are all coupled together so that the blood drawn into each of these catheters may be fed to a pump. A manifold has valves which control flows through the venous cannula, venting catheter and aortic occlusion device. A blood storage element is also provided so that the amount of blood in the perfusion circuit may be varied if necessary. The blood storage element is preferably positioned in parallel with the pump so that the pump may be used to add and remove blood to and from the blood storage element.
    Type: Application
    Filed: July 11, 2002
    Publication date: November 28, 2002
    Inventors: Craig P. Roberts, John M. Toomasian, Sylvia W. Fan
  • Methods and devices for maintaining cardiopulmonary bypass and arresting a patient's heart
    Patent number: 6443922
    Abstract: An endovascular system for arresting a patient's heart and maintaining the patient on cardiopulmonary bypass. A venous cannula, venting catheter and an aortic occlusion device are all coupled together so that the blood drawn into each of these catheters may be fed to a pump. A manifold has valves which control flows through the venous cannula, venting catheter and aortic occlusion device. A blood storage element is also provided so that the amount of blood in the perfusion circuit may be varied if necessary. The blood storage element is preferably positioned in parallel with the pump so that the pump may be used to add and remove blood to and from the blood storage element.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: September 3, 2002
    Assignee: Heartport, Inc.
    Inventors: Craig P. Roberts, John M. Toomasian, Sylvia W. Fan
  • METHODS AND DEVICES FOR MAINTAINING CARDIOPULMONARY BYPASS AND ARRESTING A PATIENT'S HEART
    Publication number: 20020087107
    Abstract: An endovascular system for arresting a patient's heart and maintaining the patient on cardiopulmonary bypass. A venous cannula, venting catheter and an aortic occlusion device are all coupled together so that the blood drawn into each of these catheters may be fed to a pump. A manifold has valves which control flows through the venous cannula, venting catheter and aortic occlusion device. A blood storage element is also provided so that the amount of blood in the perfusion circuit may be varied if necessary. The blood storage element is preferably positioned in parallel with the pump so that the pump may be used to add and remove blood to and from the blood storage element.
    Type: Application
    Filed: September 23, 1999
    Publication date: July 4, 2002
    Inventors: CRAIG P. ROBERTS, JOHN M. TOOMASIAN, SYLVIA W. FAN
  • Methods and devices for maintaining cardiopulmonary bypass and arresting a patient's heart
    Patent number: 5957879
    Abstract: An endovascular system for arresting a patient's heart and maintaining the patient on cardiopulmonary bypass. A venous cannula, venting catheter and an aortic occlusion device are all coupled together so that the blood drawn into each of these catheters may be fed to a pump. A manifold has valves which control flows through the venous cannula, venting catheter and aortic occlusion device. A blood storage element is also provided so that the amount of blood in the perfusion circuit may be varied if necessary. The blood storage element is preferably positioned in parallel with the pump so that the pump may be used to add and remove blood to and from the blood storage element.
    Type: Grant
    Filed: January 24, 1997
    Date of Patent: September 28, 1999
    Assignee: Heartport, Inc.
    Inventors: Craig P. Roberts, John M. Toomasian, Sylvia W. Fan