Electrical heating catheter

Details Electrical heating catheter Electrical heating catheter

1992-06-04

1993-07-27

Cohen, Lee S.

Surgery

Truss

Pad

606 45, A61N 105

Patent

active

052303497

ABSTRACT:
The invention provides a thermal design of a catheter where the active electrode is partially covered by a heat conducting and electrically insulating heat-sink layer 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 for gradual transition of electrical properties at a boundary of a metallic active electrode and an insulating catheter tube. The current equalizing coating controls current density and the distribution of tissue heating.

REFERENCES:
patent: 4074718 (1978-02-01), Morrison, Jr.
patent: 4896671 (1990-01-01), Cunningham et al.
Haines et al, "Tissue Heating . . . Ablation", PACE, vol. 12, Jun. 1989, pp. 962-976.
Ahsan et al, "Catheter Ablation . . . System", PACE, vol. 12, Jan. 1989.

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