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Proceedings Paper

Comparative performance of infrared solid state lasers in laser lithotripsy
Author(s): G. I. D'yakonov; Vitali I. Konov; B. A. Mikhailov; D. A. Nikolaev; S. K. Pak; Ivan Alexandrov Shcherbakov
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Paper Abstract

This paper describes the experimental investigation of the fragmentation processes of urinary stones by Cr,Nd:YSGG laser radiation (2.79 micrometers ). The laser operated in a pulse free-running regime with the pulse energy up to 1 J and pulse duration of 250-550 micrometers . It was shown that about 3 kJ of total radiation energy was required in order to ablate 1 g of urinary calculus. In those conditions, the stone substance was broken in a small fibrous-like dust. The maximum size of particles did not exceed 0.2-0.4 mm. The qualitative comparison of the stone ablation efficiency for the Cr,Er:YSGG laser, Cr,Nd:YSGG laser (1.06 micrometers ), and Cr,Tm,Ho:YSGG laser (2.09 micrometers ) was carried out.

Paper Details

Date Published: 1 July 1991
PDF: 7 pages
Proc. SPIE 1421, Lasers in Urology, Laparoscopy, and General Surgery, (1 July 1991); doi: 10.1117/12.43924
Show Author Affiliations
G. I. D'yakonov, General Physics Institute (Russia)
Vitali I. Konov, General Physics Institute (Russia)
B. A. Mikhailov, General Physics Institute (Russia)
D. A. Nikolaev, General Physics Institute (Russia)
S. K. Pak, General Physics Institute (Russia)
Ivan Alexandrov Shcherbakov, General Physics Institute (Russia)

Published in SPIE Proceedings Vol. 1421:
Lasers in Urology, Laparoscopy, and General Surgery
Graham M. Watson; Rudolf W. Steiner; Joseph J. Pietrafitta, Editor(s)

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