Surgery – Instruments – Blood vessel – duct or teat cutter – scrapper or abrader
Patent
1990-06-05
1994-11-29
Rosenbaum, C. Fred
Surgery
Instruments
Blood vessel, duct or teat cutter, scrapper or abrader
606 17, 604 22, A61M 2500
Patent
active
053686039
ABSTRACT:
An endarterectomy catheter for removing obstructions from an artery comprises a cylindrical housing, the housing having an opening across which a primary shear is movable. The primary shear is razor sharp and cylindrical and movable by means of a cable and trigger backward and forward within the housing to excise obstructions that protrude into the opening. A guide wire positions the catheter in an artery.
The edge of the housing at the opening may be sharp to grip the obstruction and to assist in the cutting action of the primary shear. The shear is hollow and collects debris from the excised obstruction. Openings in the housing allow blood to pass through the body.
A method of removing obstructions from an artery includes locating a housing in an artery with an obstruction protruding into an opening in the housing, moving a razor sharp cylindrical shear across the opening to excise the obstruction, encapsulating the excised obstruction in the housing, and removing the housing from the artery.
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Altered Fluorescence Emission During Continuous Wave Laser Ablation of Atherosclerotic Plaque by Alexandra R. Lucas, Richard H. Clarke, Jeffrey M. Isner, 18 pages.
The Characterization of Human Coronary Artery Atherosclerotic Plaque Fluorescence Emission by Alexandra Lucas, Markus J. Radosavljevic, Erbin Lu, Edward J. Gaffney, 26 pages.
Correlation of Fluorescence Emission With the Plaque Content and Intimal Thickness of Atherosclerotic Coronary Arteries by Edward J. Gaffney, Richard H. Clarke, Alexandra R. Lucas, and Jeffrey M. Isner, from Lasers in Surgery and Medicine 9:215-228 (1989).
Article by Eric R. Bates, MD entitled Percutaneous Atherectomy Catheters, from Cardiology Clinis, Vo. 6, No. 3, Aug. 1988, pp. 373-382.
Laser Therapy for Cardiovascular Disease: Current Status and Future Direction by Jeffrey M. Isner, constance D. Fields, Alexandra R. Lucas, from Choices in Cardiology, vol. 2, No. 5, pp. 225-228.
Laser therapy in the treatment of cardiovascular disease by Jeffrey M. Isner, Alexandra R. Lucas, Constance D. Fields, from British Journal of Hospital Medicine, vol. 40, Sep. 1988, pp. 172-178.
Lewis William
Rosenbaum C. Fred
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