Patents by Inventor James Jimison

James Jimison 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: 6293920
    Abstract: A catheter system and method for achieving total cardiopulmonary bypass during heart surgery. A venous perfusion catheter is inserted peripherally into a preselected vein where it is advanced and positioned at the atrio-caval junction. The venous perfusion catheter has first and second balloons which when inflated respectively occlude the inferior and superior vena cava thereby precluding blood flow into the right atrium. An arterial perfusion catheter is inserted peripherally into a preselected arterial vessel and advanced within the vessel and positioned in the ascending aorta cephalid of the junction of the coronary arteries with the aortic root. A second flexible arterial cannula is mounted in sliding relationship with the first flexible cannula and carries an inflatable balloon acjacent its distal end to provide for occlusion of the ascending aorta.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: September 25, 2001
    Assignee: Heartport, Inc.
    Inventors: William Penn Sweezer, James Jimison, Ronald L. Coleman
  • Patent number: 6248086
    Abstract: A catheter system and method for achieving total cardiopulmonary bypass during heart surgery. A venous perfusion catheter is inserted peripherally into a preselected vein where it is advanced and positioned at the atrio-caval junction. The venous perfusion catheter has first and second balloons which when inflated respectively occlude the inferior and superior vena cava thereby precluding blood flow into the right atrium. An arterial perfusion catheter is inserted peripherally into a preselected arterial vessel and advanced within the vessel and positioned in the ascending aorta cephalid of the junction of the coronary arteries with the aortic root. A second flexible arterial cannula is mounted in sliding relationship with the first flexible cannula and carries an inflatable balloon adjacent its distal end to provide for occlusion of the ascending aorta.
    Type: Grant
    Filed: February 23, 1998
    Date of Patent: June 19, 2001
    Assignee: Heartport, Inc.
    Inventors: William Penn Sweezer, James Jimison, Ronald L. Coleman
  • Patent number: 5800375
    Abstract: A catheter system and method for achieving total cardiopulmonary bypass during heart surgery. A venous perfusion catheter is inserted peripherally into a preselected vein where it is advanced and positioned at the atrio-caval junction. The venous perfusion catheter has first and second balloons which when inflated respectively occlude the inferior and superior vena cava thereby precluding blood flow into the right atrium. An arterial perfusion catheter is inserted peripherally into a preselected arterial vessel and advanced within the vessel and positioned in the ascending aorta cephalid of the junction of the coronary arteries with the aortic root. A second flexible arterial cannula is mounted in sliding. relationship with the first flexible cannula and carries an inflatable balloon adjacent its distal end to provide for occlusion of the ascending aorta.
    Type: Grant
    Filed: December 20, 1995
    Date of Patent: September 1, 1998
    Assignee: Heartport, Inc.
    Inventors: William Penn Sweezer, James Jimison, Ronald L. Coleman
  • Patent number: 5478309
    Abstract: A catheter system and method for achieving total cardiopulmonary bypass during heart surgery. A venous perfusion catheter is inserted peripherally into a preselected vein where it is advanced and positioned at the atrio-caval junction. The venous perfusion catheter has first and second balloons which when inflated respectively occlude the inferior and superior vena cava thereby precluding blood flow into the right atrium. An arterial perfusion catheter is inserted peripherally into a preselected arterial vessel and advanced within the vessel and positioned in the ascending aorta cephalid of the junction of the coronary arteries with the aortic root. A second flexible arterial cannula is mounted in sliding relationship with the first flexible cannula and carries an inflatable balloon adjacent its distal end to provide for occlusion of the ascending aorta.
    Type: Grant
    Filed: May 27, 1994
    Date of Patent: December 26, 1995
    Assignee: William P. Sweezer, Jr.
    Inventors: William P. Sweezer, James Jimison, Ronald L. Coleman