Catheter for laser angiosurgery

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 th...

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Bibliographic Details
Main Authors KITTRELL; CARTER, COTHREN, JR.; ROBERT M, SACHS; BARRY, FELD; MICHAEL S
Format Patent
LanguageEnglish
Published 01.03.1994
Edition5
Subjects
CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MACHINE TOOLS
MEDICAL OR VETERINARY SCIENCE
METAL-WORKING NOT OTHERWISE PROVIDED FOR
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PERFORMING OPERATIONS
PHYSICS
SOLDERING OR UNSOLDERING
SURGERY
TRANSPORTING
WELDING
WORKING BY LASER BEAM
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Summary: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.
Bibliography:Application Number: US19910731010