Multi-electrode ablation catheter

Details Multi-electrode ablation catheter Multi-electrode ablation catheter

1996-11-01

1999-04-13

Peffley, Michael

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical energy applicator

606 41, 606 31, 607102, A61B 1736

Patent

active

058938850

ABSTRACT:
A multi-electrode ablation catheter comprises a plurality of thick-walled gold alloy electrodes mounted on the tip section of an elongated electrophysiology catheter. Each electrode is electrically connected to a switching unit by leads comprising paired copper and constantan wires. The switching unit is electrically connected to an RF generator, a temperature monitor and an ECG monitor. The switching unit enables an operator to switch between a first mode for monitoring ECG and a second mode for delivering RF energy for tissue ablation to a selected electrode and monitoring the temperature of that electrode. The copper wire of the lead delivers RF energy and the copper wire and constantan wire combine to form a thermocouple for temperature monitoring.

REFERENCES:
patent: 4411266 (1983-10-01), Cosman
patent: 4960134 (1990-10-01), Webster. Jr.
patent: 4966597 (1990-10-01), Cosman
patent: 5327905 (1994-07-01), Avitall
patent: 5529067 (1996-06-01), Larsen et al.

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