New concept of a compact multiwavelength solid state laser for laser-induced shock wave lithotripsy

Erwin Steiger

doi:10.1117/12.43921

1 July 1991 New concept of a compact multiwavelength solid state laser for laser-induced shock wave lithotripsy

Erwin Steiger

Proceedings Volume 1421, Lasers in Urology, Laparoscopy, and General Surgery; (1991) https://doi.org/10.1117/12.43921
Event: Optics, Electro-Optics, and Laser Applications in Science and Engineering, 1991, Los Angeles, CA, United States

Abstract

In the past a widespread use of pulsed solid-state and flashlamp-pumped pulsed dye lasers in the vast medical field of endoscopic laser-induced shock wave lithotripsy (LISL) of urinary, biliary, and salivary stones was hindered mainly by the facts that (1) the available systems were too expensive compared to other conventional therapies; (2) the laser systems of the first generation didn't ideally fit into existing operation rooms because they were bulky and heavy; (3) the laser systems--except for the non solid-state dye laser system--provided only a fixed wavelength for stone fragmentation. This paper reports on a new concept of a small size pulsed and tunable alexandrite laser system for laser-induced shock wave lithotripsy that could provide not only wavelengths in the fundamental region of 720-860 nm with high peak powers and high energy fluences but also in the frequency-doubled region of 360-430 nm. The fragmentation process is induced via the violet wavelengths and the fragmentation efficiency is reinforced via the fundamental wavelengths of the laser system.

Citation Download Citation

Erwin Steiger "New concept of a compact multiwavelength solid state laser for laser-induced shock wave lithotripsy", Proc. SPIE 1421, Lasers in Urology, Laparoscopy, and General Surgery, (1 July 1991); https://doi.org/10.1117/12.43921

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