Dual frequency laser lithotripter

Details Dual frequency laser lithotripter Dual frequency laser lithotripter

1989-04-14

1991-04-23

Smith, Ruth S.

Surgery

Instruments

Means for concretion removal

606 3, A61B 1722

Patent

active

050096583

ABSTRACT:
Method and apparatus are provided for laser lithotripsy by subjecting calcified matter in the mammalian body, especially the human body, to two spatially and temporally overlapping pulsed laser light beams in the 300-450 and 600-900 nanometer wavelength range.

REFERENCES:
patent: 4391275 (1983-07-01), Fankhauser et al.
patent: 4408602 (1983-10-01), Nakajima
patent: 4672969 (1987-06-01), Dew
patent: 4764930 (1988-08-01), Bille et al.
patent: 4791927 (1988-12-01), Menger
"A Q-Switched Alexandrite Laser for Laser Induced Shock Wave Lithotripsy (LISL)-Basics and In Vitro Studies", European Laser Journal for Medicine and Surgery, E. Steiger and J. W. Kuper, 1988.
Topical Meeting on Tunable Solid State Lasers Technical Digest, "Medical Applications of Alexandrite Laser Systems", Oct., 1987, Kuper et al.
PCT/WIPO Publication #WO89/04147 based on PCT/US88/04000, Pub. Date May 18, 1989; Applicant, Filler, W. S., Title: ESWL Employing Non-Focused Spherical-Sector Shock Waves.

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