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Method and apparatus for cartilage reshaping by radiofrequency heating

United States Patent

July 8, 2003
View the Complete Patent at the US Patent & Trademark Office
A method and apparatus for reshaping cartilage using radiofrequency heating. The cartilage temperature is raised sufficiently for stress relaxation to occur in the cartilage, but low enough so that significant denaturation of the cartilage does not occur. The RF electrodes may be designed to also function as molds, preses, clamps, or mandrills to deform the cartilage tissue. Changes in various properties of the cartilage associated with stress relaxation in the cartilage may be measured in order to provide the control signal to provide effective reshaping without denaturation.
Wong; Brian J. F. (Irvine, CA), Milner; Thomas E. (Austin, TX), Sobol; Emil N. (Moscow, RU), Keefe; Michael W. (Orange, CA)
The Regents of the University of California (Oakland, CA), The Board of Regents, The University of Texas System (Austin, TX)
09/ 770,799
January 19, 2001
STATEMENT OF GOVERNMENT INTEREST The United States Government has rights in this invention pursuant to contracts between the University of California, and the Department of Energy (95-3800459); the Office of Naval Research (N00014-94-0874); and the National Institutes of Health (1 K08 DC 00170-01, AR-43419, RR-01192, and HL-59472).