Title:
【発明の名称】切除による直線状の損傷を形成する装置
Document Type and Number:
Japanese Patent JP2000506751
Kind Code:
A
Abstract:
An apparatus for ablating body tissue, and particularly for creating linear lesions within a chamber of a patient's heart, includes an elongate member having an ablation section. The ablation section includes an infusion tube and a plurality of spaced electrodes. The infusion tube and electrodes are covered by a fluid permeable foam material, and the foam material is covered by a fluid impermeable covering having a plurality of holes formed in it. During use, the ablation section is positioned against tissue to be ablated. Radiofrequency energy is delivered to he electrodes while saline or other conductive fluid is delivered to the infusion tube. The fluid exits the infusion tube at the ablation section, contacts the electrodes, and carries RF energy from the electrodes through the foam, through the holes in the covering and into contact with the body tissue to form a burn in the body tissue.
Inventors:
Pomeranz, Mark Elle
Chapman, Troy Jay
Sherman, Darren Earl
Imran, Mya
Chapman, Troy Jay
Sherman, Darren Earl
Imran, Mya
Application Number:
JP53174597A
Publication Date:
June 06, 2000
Filing Date:
November 04, 1996
Export Citation:
Assignee:
Cardiac Pathways Corporation
International Classes:
A61B17/00; A61B18/04; A61B18/12; A61B18/14; A61N1/05; A61N1/06; A61B18/00; (IPC1-7): A61B18/12; A61B18/04
Attorney, Agent or Firm:
Yuzo Yamazaki (2 outside)