05433708 is referenced by 388 patents and cites 40 patents.

A thermal ablation catheter includes an elongate body member having a heating element disposed over a predetermined length of its distal end. The heating element is suspended away from an exterior surface of the elongate member to form a circulation region thereunder. Thermally conductive fluid can be introduced through a lumen in the elongate member and distributed within the circulation region to improve heat transfer. The catheter is used to introduce the thermally conductive medium to a hollow body organ where the heating element raises the temperature of the medium sufficiently to induce injury to the lining of the organ. Optionally, an introducer sheath having an expandable cage at its distal end may be used in combination with a thermal ablation catheter. The expandable cage helps center the heating element on the catheter within the body organ and prevents direct contact between the heating element and the wall of the organ. Heat transfer and temperature uniformity can be enhanced by inducing an oscillatory flow of the heat transfer medium through the catheter while heat is being applied.

Title
Method and device for thermal ablation having improved heat transfer
Application Number
702796
Publication Number
5433708
Application Date
June 7, 1993
Publication Date
July 18, 1995
Inventor
Robert S Behl
Palo Alto
CA, US
William R Dubrul
Redwood City
CA, US
Colin J Nichols
Fremont
CA, US
Agent
Townsend and Townsend Khourie and Crew
Assignee
Innerdyne
CA, US
IPC
A61B 17/36
A61F 7/00
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