Use of lasers to break down objects

Details Use of lasers to break down objects Use of lasers to break down objects

1987-04-22

1989-12-19

Hindenburg, Max

Surgery

Instruments

Means for concretion removal

606 15, A61B 1700

Patent

active

048876003

ABSTRACT:
Calculi, stones, calcified tissue and other material are broken down for removal from within a body using laser pulses that are delivered via an optical fiber and have a wavelength, intensity, energy per pulse and pulse duration selected to break down the object into smaller particles without delivering energy sufficient to cause damage to other tissue.

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"Lithotomy of Intrahepatic and Choledochal Stones with Yag Laser", Orii et al. Apr. 1983 Surg. Gyn. & Obstetrics.
"The Laser Beam in Urology", Mulvaney et al. The Jrl. of Urology 1968.
"Disintegration of Urinary Calculi by Laser Beam: Drilling Experiment in Extracted Urinary Stones", Tanahashi and Orikasa & Chiba 1979.
"Transurethral Disintegration of Urinary Calculi by the Use of Laser Beam", Tanahashi and Numata et al., Urology 1982.
"In Vitro Destruction of Urinary Calculi by Laser-Induced Stress Waves", Fair, Medical Instr. 1978.
"Laser Fragmentation of Renal Calculi", Watson et al. British Jnl. of Urology 1983.
"The Use of Laser Beam in Urology", Tanahashi and Orikasa, 1979.
Mulvaney, W. P. and C. W. Beck, J. Urology, 99, 112-115 (1968).
Fair, H. D., Medical Instrumentation, 12:100-106 (1978).
Tanahashi, V. et al., Tohoku J. Exp. Med., 128:189-196 (1979).
Tanahashi et al., "Transurethral Disintegration of Urinary Calculi . . . " (1980).
Watson, G. et al., British J. Urology, 55:613-616 (1983).
Watson, G. M., "Laser Fragmentation of Renal and Biliary Calculi", in Lasers in Medicine and Surgery (Dec. 13, 1983).
Watson et al., "Tunable Pulsed Dye Laser for Fragmentation of Urinary Calculi" in Lasers in Surgery and Medicine (Apr. 15, 1985; Abstracts 82 and 163).

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