skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Method and apparatus for cartilage reshaping by radiofrequency heating

Abstract

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.

Inventors:
; ; ;
Publication Date:
Research Org.:
Univ. of California, Oakland, CA (United States); The Board of Regents, The University of Texas System, Austin, TX (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1174390
Patent Number(s):
6,589,235
Application Number:
09/770,799
Assignee:
The Regents of the University of California (Oakland, CA); The Board of Regents, The University of Texas System (Austin, TX)
DOE Contract Number:  
95-3800459
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Wong, Brian J., Milner, Thomas E., Sobol, Emil N., and Keefe, Michael W.. Method and apparatus for cartilage reshaping by radiofrequency heating. United States: N. p., 2003. Web.
Wong, Brian J., Milner, Thomas E., Sobol, Emil N., & Keefe, Michael W.. Method and apparatus for cartilage reshaping by radiofrequency heating. United States.
Wong, Brian J., Milner, Thomas E., Sobol, Emil N., and Keefe, Michael W.. Tue . "Method and apparatus for cartilage reshaping by radiofrequency heating". United States. https://www.osti.gov/servlets/purl/1174390.
@article{osti_1174390,
title = {Method and apparatus for cartilage reshaping by radiofrequency heating},
author = {Wong, Brian J. and Milner, Thomas E. and Sobol, Emil N. and Keefe, Michael W.},
abstractNote = {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.},
doi = {},
url = {https://www.osti.gov/biblio/1174390}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {7}
}

Patent:

Save / Share:

Works referenced in this record:

Scanning Force Microscopy of the Fine Structure of Cartilage Irradiated with a CO2 Laser
journal, January 2000


Theoretical modeling of heating and structure alterations in cartilage under laser radiation with regard to water evaporation and diffusion dominance
conference, May 1998


Effect of wavelength on threshold and kinetics of tissue denaturation under laser radiation
conference, June 1999


Optical properties of nasal septum cartilage
conference, May 1998

  • Bagratashvili, Nodar V.; Sviridov, Alexander P.; Sobol, Emil N.
  • BiOS '98 International Biomedical Optics Symposium, SPIE Proceedings
  • https://doi.org/10.1117/12.308189

Laser shaping of composite cartilage grafts
journal, November 1993


Cartilage reshaping with holmium laser
conference, January 1996


Phenomenon of cartilage shaping using moderate heating and its applications in otorhinolaryngology
conference, January 1996


Laser reshaping of nasal septum cartilage: clinical results for 40 patients
conference, May 2000

  • Sobol, Emil N.; Sviridov, Alexander P.; Bagratashvili, Victor N.
  • BiOS 2000 The International Symposium on Biomedical Optics, SPIE Proceedings
  • https://doi.org/10.1117/12.386265

Stress relaxation of porcine septal cartilage during radio-frequency-generated heating
conference, May 2000


Viability of porcine nasal septal cartilage grafts following Nd:YAG (n=1.32μm) laser radiation
conference, June 2000


Laser-assisted cartilage reshaping: in vitro and in vivo animal studies
conference, May 1995


Dynamics of optical and mechanical properties of cartilage at laser heating
conference, December 1996


Thermo-optical response of cartilage during feedback-controlled laser-assisted reshaping
conference, May 1997


Characterization of temperature-dependent biophysical properties during laser mediated cartilage reshaping
journal, January 1999


The optical properties of porcine nasal cartilage
journal, January 1999


Stress relaxation and cartilage shaping under laser radiation
conference, May 1996


Heating and structural alterations in cartilage under laser radiation
journal, April 1999


Laser Reshaping of Cartilage
journal, August 2000


Thermal and diffusion processes in laser-induced stress relaxation and reshaping of cartilage
journal, August 1997


Shaping of nasal septal cartilage with the carbon dioxide laser—a preliminary report of an experimental study
journal, March 1994


In-vivo study and histological examination of laser reshaping of cartilage
conference, June 1999

  • Sviridov, Alexander P.; Sobol, Emil N.; Bagratashvili, Victor N.
  • BiOS '99 International Biomedical Optics Symposium, SPIE Proceedings
  • https://doi.org/10.1117/12.350966

The effect of holmium laser radiation on stress, temperature and structure of cartilage
journal, January 1998


Mechanism of laser-induced stress relaxation in cartilage
conference, June 1997


Feedback-controlled cartilage reshaping with an Nd:YAG laser: effects of pH variation
conference, July 1998


Feedback-Controlled Laser-Mediated Cartilage Reshaping
journal, October 1999