Patents by Inventor Carl J. Simpson

Carl J. Simpson 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).

  • Transmyocardial revascularization using radiofrequency energy
    Patent number: 6156031
    Abstract: The invention is directed to a system and method for revascularization of a patient's heart tissue by at least one burst of RF energy over an interval of about 1 to about 500 msec, preferably about 30 to about 130 msec. The device preferably has an elongated insulated, electrical conducting shaft with an uninsulated distal tip which is configured to emit RF energy. A method is described for myocardial revascularization of a human heart in which an elongated flexible device is used which includes a radiofrequency ablation device. In some embodiments, the device is configured to be introduced percutaneously, on other embodiments, the device is configured to be introduced intraoperatively. The RF energy emitter is advanced to a position adjacent a desired area of the heart wall. The device is activated, moving tissue to form a revascularization channel.
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: December 5, 2000
    Assignee: Eclipse Surgical Technologies
    Inventors: Michael Aita, Carl J. Simpson, Randy J. Kesten
  • Channel forming device with a secured distal extremity
    Patent number: 5951541
    Abstract: An intravascular device for forming a channel within a patient's ventricular wall which engages the tissue of the ventricular wall to prevent undesirable movement of the channel forming device while forming the channel.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 14, 1999
    Assignee: Cardiogenesis Corporation
    Inventors: Carl J. Simpson, Randy J. Kesten, Manuel A. Javier, Steve Pearce, Sam G. Payne, Kevin Gertner
  • Method for intra-operative myocardial revascularization
    Patent number: 5925033
    Abstract: The method for intra-operative myocardial revascularization of a human heart includes a inserting a portion of an elongated flexible lasing apparatus into the chest cavity of a patient, and lasing channels from the epicardium through the myocardium of the heart, without mechanical tearing of the heart tissue. The apparatus is guided to an area exterior to a ventricle of the patient's heart, and the distal end of the optical fiber apparatus is directed to an area of interest where the exterior wall of the heart is irradiated with laser energy to form a channel through the myocardium.
    Type: Grant
    Filed: October 31, 1995
    Date of Patent: July 20, 1999
    Assignee: Cardiogenesis Corporation
    Inventors: Michael Aita, Mahmood Mirhoseini, Mary Cayton, Carl J. Simpson, Brian Guscott
  • Method for intra-operative myocardial revascularization
    Patent number: 5554152
    Abstract: The method for intra-operative myocardial revascularization of a human heart includes a inserting a portion of an elongated flexible lasing apparatus into the chest cavity of a patient, and lasing channels from the epicardium through the myocardium of the heart, without mechanical tearing of the heart tissue. The apparatus is guided to an area exterior to a ventricle of the patient's heart, and the distal end of the optical fiber apparatus is directed to an area of interest where the exterior wall of the heart is irradiated with laser energy to form a channel through the myocardium.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: September 10, 1996
    Assignee: CardioGenesis Corporation
    Inventors: Michael Aita, Mahmood Mirhoseini, Mary Cayton, Carl J. Simpson, Brian Guscott
  • Method for intra-operative myocardial device revascularization
    Patent number: 5380316
    Abstract: The method for intra-operative myocardial revascularization of a human heart includes a inserting a portion of an elongated flexible lasing apparatus into the chest cavity of a patient, and lasing channels from the epicardium through the myocardium of the heart, without mechanical tearing of the heart tissue. The apparatus is guided to an area exterior to a ventricle of the patient's heart, and the distal end of the optical fiber apparatus is directed to an area of interest where the exterior wall of the heart is irradiated with laser energy to form a channel through the myocardium.
    Type: Grant
    Filed: June 16, 1993
    Date of Patent: January 10, 1995
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Michael Aita, Mahmood Mirhoseini, Mary Cayton, Carl J. Simpson, Brian Guscott