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Proceedings Paper

Fragmentation characteristics of various calculi evaluated by using hollow fibers for Er:YAG laser light
Author(s): Katsumasa Iwai; Yi-Wei Shi; Yuji Matsuura; Mitsunobu Miyagi; Seichi Saito; Youichi Arai; Helena Jelinkova
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Paper Abstract

Quantification of calculus fragmentation by Er:YAG laser light was experimentally discussed. Er:YAG laser light was delivered to reach a calculus or a model calculus underwater by using a sealed hollow optical fiber. Fragmentation efficiency was obtained for alumina ball used as a model of calculus when sealing caps with various focusing effect were used. Three types of human calculi were analyzed and their absorption properties at the wavelength of Er:YAG laser light were obtained. The relationship among the absorption property, constituents of calculus, and the fragmentation efficiency were also discussed.

Paper Details

Date Published: 23 March 2005
PDF: 9 pages
Proc. SPIE 5691, Optical Fibers and Sensors for Medical Applications V, (23 March 2005); doi: 10.1117/12.601855
Show Author Affiliations
Katsumasa Iwai, Sendai National College of Technology (Japan)
Yi-Wei Shi, Tohoku Univ. (Japan)
Yuji Matsuura, Tohoku Univ. (Japan)
Mitsunobu Miyagi, Tohoku Univ. (Japan)
Seichi Saito, Tohoku Univ. Hospital (Japan)
Youichi Arai, Tohoku Univ. Hospital (Japan)
Helena Jelinkova, Czech Technical Univ. (Czech Republic)


Published in SPIE Proceedings Vol. 5691:
Optical Fibers and Sensors for Medical Applications V
Israel Gannot, Editor(s)

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