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Proceedings Paper

Laser-induced shockwave generation for use in lithotripsy
Author(s): Hans J. Koort; Christian Tischer; Ralf Rasch; Christoph Thiede
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Paper Abstract

The laser system U100 made by WOM AG, Germany is a newly designed medical laser device espacially for the use in urology for the intra corporal kidney, urethra and bladder stone shockwave lithotripsy as well as for the gestrointestinal surgery to shatter stones in the bile duct. In opposite to other laser systems which usually produces little shockwaves by means of collapsing steam cavities by a rapid and strong heating of the water surrounding the material, the laser energy of the U100 generates a real mechanical shock wave directly on the targeted stone, which leads to a safe and very efficient crushing of the stones. Becase of this non thermal interaction the adjacent tissue remains unaffected. Highly flexible, thin fiber system permit the laser energy to be trensferred to the targets using various methods of access, by means of X-ray control and under the direct endoscopical view with rigid and flexible scopes. We present the background of the FREDDY (Frequency Doubled Double Pulse Nd:YAG) lase technology and discuss the applications in urology, gestrointestinal surgery and other medical fields the U100 has been grented FDA 510k approval for use in urology in November 2001.

Paper Details

Date Published: 17 June 2002
PDF: 4 pages
Proc. SPIE 4609, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems XII, (17 June 2002); doi: 10.1117/12.437296
Show Author Affiliations
Ralf Rasch
Christoph Thiede


Published in SPIE Proceedings Vol. 4609:
Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems XII
Lawrence S. Bass; Abraham Katzir; Eugene A. Trowers; Timothy A. Woodward; Werner T.W. de Riese; Kenneth Eugene Bartels; Lloyd P. Tate; George M. Peavy; Michael D. Lucroy; Lawrence S. Bass; Nikiforos Kollias; Kenton W. Gregory; Udayan K. Shah; Brian Jet-Fei Wong; David S. Robinson; Hans-Dieter Reidenbach; Kenneth Eugene Bartels; Lawrence S. Bass; Werner T.W. de Riese; Kenton W. Gregory; Abraham Katzir; Nikiforos Kollias; Michael D. Lucroy; Reza S. Malek; George M. Peavy; Hans-Dieter Reidenbach; David S. Robinson; Udayan K. Shah; Lloyd P. Tate; Eugene A. Trowers; Brian Jet-Fei Wong; Timothy A. Woodward, Editor(s)

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