Laser transmyocardial revascularization arrangement

Details Laser transmyocardial revascularization arrangement Laser transmyocardial revascularization arrangement

1996-06-20

1997-09-30

Bahr, Jennifer

Surgery

Instruments

Light application

606 11, 606 15, 607 9, 607 25, A61B 506, A61B 500, A61N 1362

Patent

active

056721706

ABSTRACT:
The present invention involves a system for transmyocardial revascularization of a beating heart, including a laser device for ablating wall tissue of the heart being treated, with a pacemaker connected to the heart being treated, to provide electrical signals to control the cardiac cycle of that heart, and a conditioning circuit connected to both the pacemaker and to the laser, to permit the controlled "safe period" firing of the laser. The laser includes an optic waveguide articulably arranged to irradiate the wall of the heart. The conditioning circuit is programmed to permit the firing of the laser upon the time of the cardiac cycle of the heart during a non-ventricular repolarization time period.

REFERENCES:
patent: 4453547 (1984-06-01), Castel et al.
patent: 5125926 (1992-06-01), Rudko et al.
patent: 5389096 (1995-02-01), Aita et al.
patent: 5411532 (1995-05-01), Mortazavi
patent: 5454807 (1995-10-01), Lennox et al.
patent: 5464404 (1995-11-01), Abela
Transmural Channels Can Protect Ischemic Tissue; Whittaker et al "Circulation " vol. 93, No. 1 Jan. 1996 pp. 143-152.

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