Electrical heating catheter

Details Electrical heating catheter Electrical heating catheter

A - Human Necessities

61

N

A61N 1/05 (2006.01) A61B 18/08 (2006.01) A61B 18/14 (2006.01) A61N 1/28 (2006.01) A61N 1/40 (2006.01)

Patent

CA 2070403

2070403 9202272 PCTABS00010 The invention provides a thermal design of a catheter (10) where the active electrode (11) is partially covered by a heat conducting and electrically insulating heat-sink layer (29) for localizing and controlling an electrical heating of tissue and cooling of the active electrode by convective blood flow. The invention further comprises a current equalizing coating (78, 79) for gradual transition of electrical properties at a boundary of a metallic active electrode and an insulating catheter tube (10). The current equalizing coating controls current density and the distribution of tissue heating.

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