Optical needle for spectroscopic diagnosis

Details Optical needle for spectroscopic diagnosis Optical needle for spectroscopic diagnosis

1989-10-04

1993-04-06

Hindenburg, Max

Surgery

Truss

Pad

128665, A61B 500

Patent

active

051994313

ABSTRACT:
A laser catheter is disclosed wherein optical fibers carrying laser light are mounted in a catheter for insertion into an artery to provide controlled delivery of a laser beam for percutaneous intravascular laser treatment of atherosclerotic disease. A transparent protective shield is provided at the distal end of the catheter for mechanically diplacing intravascular blood and protecting the fibers from the intravascular contents, as well as protecting the patient in the event of failure of the fiber optics. Multiple optical fibers allow the selection of tissue that is to be removed. A computer controlled system automatically aligns fibers with the laser and controls exposure time. Spectroscopic diagnostics determine what tissue is to be removed.

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