Catheter

Details Catheter Catheter

1989-08-30

1991-01-15

Cohen, Lee S.

Surgery

Instruments

Light application

A61B 1736

Patent

active

049850288

ABSTRACT:
A technique for the treatment of ventricular tachycardia. The ventricles are endocardially mapped by way of an electrophysiological workup. This mapping locates the tachycardial foci and other abnormalities in conduction. A special catheter containing an optical fiber is percutaneously inserted into a blood vessel and advanced into the ventricle. The distal tip of the catheter is positioned adjacent to each of the tachycardia generating sites. A medical laser is used to irradiate each site via the optical fiber. The tissue at each site is thereby photocoagulated or ablated to remove the source of the tachyarythmia.

REFERENCES:
patent: 4785815 (1988-11-01), Cohen
patent: 4854315 (1989-08-01), Stack et al.
Isner et al., "Lasers: Their Potential . . . ", Cardiovascular Medicine, May 1985, pp. 23-25, 28-30, 37.
Lee et al., "Effects of Laser Radiation . . . ", Am. H. J., 1983, pp. 587-590.

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