Catheter for rf ablation with cooled electrode and method

Details Catheter for rf ablation with cooled electrode and method Catheter for rf ablation with cooled electrode and method

A - Human Necessities

61

B

A61B 18/14 (2006.01) A61B 17/00 (2006.01) A61B 18/00 (2006.01) A61B 17/39 (1990.01)

Patent

CA 2110309

ABSTRACT OF THE DISCLOSURE 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 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.

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