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19 January 1996 Laser tissue welding using an eye-guided targeting system
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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.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Klaus Schoenenberger, Klaus Rink, Guy P. Delacretaz, Kevin Strommer, Hans-Georg Imhof, Yasuhiro Yonekawa, Jing Tang, and Guilhem Godlewski M.D. "Laser tissue welding using an eye-guided targeting system", Proc. SPIE 2623, Medical Applications of Lasers III, (19 January 1996);


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