Ablation device and methods

Details Ablation device and methods Ablation device and methods

1997-04-16

1998-12-01

Coggins, Wynn Wood

Surgery

Means for introducing or removing material from body for...

With means for cutting, scarifying, or vibrating tissue

604 49, A61B 1720

Patent

active

058430202

ABSTRACT:
An RF ablation device has a delivery catheter with distal and proximal ends. A handle is attached to the proximal end of the delivery catheter. The delivery catheter has an electrode deployment means where said electrode deployment means includes a retractable tip section comprising a deployable electrode with portion of one side having a sharp edge. The tip section has a non-deployed state when it is positioned in the delivery catheter. On the other hand, the tip section has a distended deployed state when it is advanced out of the distal end of said delivery catheter. The deployed tip section has a preformed shape while the farther distal deployed electrode defines an ablation target along with portion of the forward side having a sharp edge on said electrode. The forward edge of the deployed electrode has a slightly curvature or an essentially straight shape. Alternatively, the forward edge of the deployed electrode has sections with plurality of concave or convex curvatures.

REFERENCES:
patent: 4565200 (1986-01-01), Cosman
patent: 4920978 (1990-05-01), Colvin
patent: 5281218 (1994-01-01), Imran
patent: 5458597 (1995-10-01), Edwards et al.
patent: 5536267 (1996-07-01), Edwards et al.

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