Patents Assigned to Atrionix, Inc.
  • Circumferential ablation device assembly
    Patent number: 6245064
    Abstract: This invention is a circumferential ablation device assembly which is adapted to forming a circumferential conduction block in a pulmonary vein. The assembly includes a circumferential ablation element which is adapted to ablate a circumferential region of tissue along a pulmonary vein wall which circumscribes the pulmonary vein lumen, thereby transecting the electrical conductivity of the pulmonary vein against conduction along its longitudinal axis and into the left atrium. The circumferential ablation element includes an expandable member with a working length that is adjustable from a radially collapsed position to a radially expanded position. An equatorial band circumscribes the outer surface of the working length and is adapted to ablate tissue adjacent thereto when actuated by an ablation actuator.
    Type: Grant
    Filed: January 11, 2000
    Date of Patent: June 12, 2001
    Assignee: Atrionix, Inc.
    Inventors: Michael D. Lesh, Michael Ronald Ross, Jonathan J. Langberg, James C. Peacock, III
  • Circumferential ablation device assembly
    Patent number: 6117101
    Abstract: This invention is a circumferential ablation device assembly which is adapted to forming a circumferential conduction block in a pulmonary vein. The assembly includes a circumferential ablation element which is adapted to ablate a circumferential region of tissue along a pulmonary vein wall which circumscribes the pulmonary vein lumen, thereby transecting the electrical conductivity of the pulmonary vein against conduction along its longitudinal axis and into the left atrium. The circumferential ablation element includes an expandable member with a working length that is adjustable from a radially collapsed position to a radially expanded position. An equatorial band circumscribes the outer surface of the working length and is adapted to ablate tissue adjacent thereto when actuated by an ablation actuator.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: September 12, 2000
    Assignees: The Regents of the University of California, Atrionix, Inc.
    Inventors: Chris J. Diederich, Michael D. Lesh, James C. Peacock, III, Michael R. Ross
  • Circumferential ablation device assembly
    Patent number: 6024740
    Abstract: This invention is a circumferential ablation device assembly which is adapted to forming a circumferential conduction block in a pulmonary vein. The assembly includes a circumferential ablation element which is adapted to ablate a circumferential region of tissue along a pulmonary vein wall which circumscribes the pulmonary vein lumen, thereby transecting the electrical conductivity of the pulmonary vein against conduction along its longitudinal axis and into the left atrium. The circumferential ablation element includes an expandable member with a working length that is adjustable from a radially collapsed position to a radially expanded position. An equatorial band circumscribes the outer surface of the working length and is adapted to ablate tissue adjacent thereto when actuated by an ablation actuator.
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: February 15, 2000
    Assignees: The Regents of the University of California, Atrionix, Inc., Emory University
    Inventors: Michael D. Lesh, Michael Ronald Ross, Jonathan J. Langberg, James C. Peacock, III