Atrioventricular valve tissue ablation catheter and method

Details Atrioventricular valve tissue ablation catheter and method Atrioventricular valve tissue ablation catheter and method

1995-11-20

1998-10-20

Jaworski, Francis J.

Surgery

Diagnostic testing

Structure of body-contacting electrode or electrode inserted...

606 41, 607122, A61B 504, A61N 136

Patent

active

058239553

ABSTRACT:
An atrioventricular valve tissue ablation catheter (2), especially suited for treating Mahaim fibers, includes a shaft (4) with a deflectable tip (20) at the distal end (6) and a handle (10) at the proximal end (8). The tip includes a distal segment (66) curving in one direction and a proximal segment (44) curving in the opposite direction so the distal segment causes the distal segment can engage tissue on either side of the annulus (92) of the tricuspid (or mitral) valve (90). Ablation energy can be supplied through the ablation electrodes (46, 70) simultaneously or one at a time to ablate tissue at the annulus without the need for moving the catheter. Mapping electrodes (38) are provided proximal of the ablation electrodes.

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