Laser medical treatment apparatus

Details Laser medical treatment apparatus Laser medical treatment apparatus

1997-12-22

1999-07-27

Leubecker, John P.

Surgery

Instruments

Light application

606 9, A61B 1736

Patent

active

059282231

ABSTRACT:
A laser apparatus for medical treatment use in which a laser beam is irradiated on a portion of a human body to be treated comprises a laser beam generation unit for generating a laser beam of giant pulse, a laser beam guide member having one end through which the laser beam from the laser beam generation unit is guided, and a hand piece attached to another end of the laser beam guide member and irradiating the laser beam to the portion to be treated. A beam converging point is formed within a laser beam propagating path formed in at least one of the light guiding means and the hand piece and a stay of air is prevented from a predetermined region in the laser beam propagating path including at least the beam converging point at which the air stays. The predetermined region is positioned within the hand piece or the laser beam guide member. The air stay is prevented by means of producing a vacuum state, gas seal state or air flow state in the predetermined region.

REFERENCES:
patent: 4732448 (1988-03-01), Goldenberg
patent: 4917083 (1990-04-01), Harrington et al.
patent: 5020995 (1991-06-01), Levy
patent: 5344418 (1994-09-01), Ghaffari
patent: 5388988 (1995-02-01), Goisser et al.
patent: 5554156 (1996-09-01), Shimizu
patent: 5738681 (1998-04-01), Shimizu

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