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Proceedings Paper

Laser tissue welding using an eye-guided targeting system
Author(s): Klaus Schoenenberger; Klaus Rink; Guy P. Delacretaz; Kevin Strommer; Hans-Georg Imhof; Yasuhiro Yonekawa; Jing Tang; Guilhem Godlewski M.D.
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Paper Abstract

End-to-end carotid artery anastomoses and aorta arteriotomy closure in rats have been performed using a diffraction limited semiconductor MOPA laser, coupled to an operating microscope and emitting a 1 watt continuous power output at a wavelength of 985 nm. Laser aiming was performed using an eye-guided laser targeting prototype, which allows the user to direct the laser with a beam steering unit controlled by the surgeon's eye movements. Preliminary results show that efficient welds can be obtained with the MOPA laser with irradiances of 670 and 1195 W/cm2. The ease and efficiency of the eye-guided procedures enabled the user to close up to 5 mm long arteriotomies in the rat aorta and to accurately perform laser assisted microvascular anastomoses of rat carotid arteries These laser welding procedures demonstrate the feasibility of eye-guided laser targeting in laser microsurgery.

Paper Details

Date Published: 19 January 1996
PDF: 7 pages
Proc. SPIE 2623, Medical Applications of Lasers III, (19 January 1996); doi: 10.1117/12.230355
Show Author Affiliations
Klaus Schoenenberger, Swiss Federal Institute of Technology (United States)
Klaus Rink, Swiss Federal Institute of Technology (Switzerland)
Guy P. Delacretaz, Swiss Federal Institute of Technology (Switzerland)
Kevin Strommer, Univ. Hospital (Switzerland)
Hans-Georg Imhof, Univ. Hospital (Switzerland)
Yasuhiro Yonekawa, Univ. Hospital (Switzerland)
Jing Tang, Univ. de Montpellier I (France)
Guilhem Godlewski M.D., Univ. de Montpellier I (France)

Published in SPIE Proceedings Vol. 2623:
Medical Applications of Lasers III
Stephen G. Bown; Herbert J. Geschwind M.D.; Raimund Hibst; Frederic Laffitte; Giulio Maira; Roberto Pini; Hans-Dieter Reidenbach; Hans H. Scherer M.D.; Pasquale Spinelli, Editor(s)

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