Medical or dental laser instrument, especially for dental root c

Details Medical or dental laser instrument, especially for dental root c Medical or dental laser instrument, especially for dental root c

1997-08-27

1999-04-27

Wilson, John J.

Dentistry

Apparatus

Having means to emit radiation or facilitate viewing of the...

433224, 606 16, A61C 100

Patent

active

058973141

ABSTRACT:
In a medical or dental laser instrument (1), especially for tooth root canal treatments, having a preferably rod-shaped hand piece (2), a connection part (3) by means of which the hand piece (2) can be connected to a supply line (4), a first light guide (5) that extends longitudinally through the supply line (4) and the connection part (3) to the hand piece (2), a second light guide (7) arranged in the front end region of the laser instrument, the rear end of the second light guide (7) being arranged coaxially with respect to the front end of the first light guide (5), and a coupling device (8) for coupling the laser light bundle leaving the first light guide (5) to the second light guide (7), the said second light guide (7) has a larger numerical aperture than the first light guide (5).

REFERENCES:
patent: 4671273 (1987-06-01), Lindsey
patent: 4826431 (1989-05-01), Fujimura et al.
patent: 5300067 (1994-04-01), Nakajima et al.
patent: 5364391 (1994-11-01), Konwitz
patent: 5388987 (1995-02-01), Badoz et al.

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