Catheter for RF ablation with cooled electrode

Details Catheter for RF ablation with cooled electrode Catheter for RF ablation with cooled electrode

1992-12-01

1994-09-20

Cohen, Lee S.

Surgery

Instruments

Electrical application

607 99, 607105, 607113, 607122, A61B 1739, A61N 105

Patent

active

053485548

ABSTRACT:
A catheter for radio frequency ablation with a cooled electrode for use in tissue having a surface comprising an elongate member having proximal and distal extremities. A metal conducting electrode secured to the distal extremity of the elongate member and having a chamber therein. A conductor extends through the elongate member from the proximal to the distal extremity for supplying radio frequency energy to the electrode. The elongate member has a lumen in the distal extremity which is in communication with the chamber. A coolant is disposed in the chamber and in contact with the electrode for dissipating heat created in the electrode by the application of radio frequency energy thereto.

REFERENCES:
patent: 5230349 (1993-07-01), Langberg
patent: 5234004 (1993-08-01), Hascoet et al.
Wittkampf et al, "Radiofrequency Ablation . . . Catheter" JACC, vol. 11, No. 2, Feb. 1988: 17A Abstracts.

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