Multiple electrode ablation apparatus

Details Multiple electrode ablation apparatus Multiple electrode ablation apparatus

1994-08-12

1996-07-16

Sykes, Angela D.

Surgery

Instruments

Electrical application

606 48, 606 39, 607101, 604 22, A61B 1739

Patent

active

055362672

ABSTRACT:
A tissue ablation apparatus includes a delivery catheter with distal and proximal ends. A handle is attached to the proximal end of the delivery catheter. At least partially positioned in the delivery catheter is an electrode deployment device. The electrode deployment device includes a plurality of retractable electrodes. Each electrode has a non-deployed state when it is positioned in the delivery catheter. Additionally, each electrode has a distended deployed state when it is advanced out of the delivery catheter distal end. The deployed electrodes define an ablation volume. Each deployed electrode has a first section with a first radius of curvature. The first section is located near the distal end of the delivery catheter. A second section of the deployed electrode extends beyond the first section, and has a second radius of curvature, or a substantially linear geometry.

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