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Microminiaturized minimally invasive intravascular micro-mechanical systems powered and controlled via fiber-optic cable

United States Patent

5,722,989
March 3, 1998
View the Complete Patent at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
A micro-mechanical system for medical procedures is constructed in the basic form of a catheter having a distal end for insertion into and manipulation within a body and a near end providing for a user to control the manipulation of the distal end within the body. A fiberoptic cable is disposed within the catheter and having a distal end proximate to the distal end of the catheter and a near end for external coupling of laser light energy. A microgripper is attached to the distal end of the catheter and providing for the gripping or releasing of an object within the body. A laser-light-to-mechanical-power converter is connected to receive laser light from the distal end of the fiberoptic cable and connected to mechanically actuate the microgripper.
Fitch; Joseph P. (Livermore, CA), Hagans; Karla (Livermore, CA), Clough; Robert (Danville, CA), Matthews; Dennis L. (Moss Beach, CA), Lee; Abraham P. (Walnut Creek, CA), Krulevitch; Peter A. (Los Altos, CA), Benett; William J. (Livermore, CA), Da Silva; Luiz (Danville, CA), Celliers; Peter M. (Berkeley, CA)
The Regents of the University of California (Oakland, CA)
08/ 812,142
March 6, 1997
The United States Government has rights in this invention pursuant to Contract No. W-7405-ENG48 between the United States Department of Energy and the University of California for the operation of Lawrence Livermore National Laboratory.