Surgery – Instruments – Electrical application
Patent
1994-03-16
1995-06-13
Cohen, Lee S.
Surgery
Instruments
Electrical application
607 99, 607105, 607113, 607122, A61B 1739, A61N 105
Patent
active
054238110
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: 5281213 (1994-01-01), Milder
patent: 5334193 (1994-08-01), Nardella
Wittkempf et al., "Radiofrequency Ablation . . . Catheter" JACC, vol. 11, No. 2., Feb. 1988: 17 A Abstracts.
Imran Mir A.
Pomeranz Mark L.
Cardiac Pathways Corporation
Cohen Lee S.
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