Scanning laser handpiece with shaped output beam

Details Scanning laser handpiece with shaped output beam Scanning laser handpiece with shaped output beam

2005-10-04

2005-10-04

Fuqua, Shawntina (Department: 3742)

Surgery

Instruments

Light application

C606S009000, C606S010000, C606S014000, C606S016000, C606S020000, C606S013000, C606S015000, C607S088000, C607S089000, C607S091000, C607S093000, C607S092000, C607S094000, C607S095000

Reexamination Certificate

active

06951558

ABSTRACT:
A scanning optical system for delivering electromagnetic radiation onto tissue to be treated is cooperative with a lightguide or optical fiber. Radiation to be delivered is provided by a source thereof via the optical fiber. The optical system includes an optical projection arrangement comprising a plurality of lenses cooperatively arranged with the lightguide. A first of the lenses is arranged to receive radiation emerging from the lightguide. The beam of radiation is passed through the projection arrangement to form a treatment spot the radiation on the tissue. Scanning is effected by causing relative motion between the exit-end of said lightguide and at least the first lens, transverse to the optical axis of the projection arrangement. The treatment spot undergoes a related transverse motion over the tissue. In one example scanning is effected by moving the first lens with the lightguide fixed. The first lens is moved using an arrangement of piezo-electric actuators.

REFERENCES:
patent: 4091814 (1978-05-01), Togo
patent: 4733660 (1988-03-01), Itzkan
patent: 4844069 (1989-07-01), Mori
patent: 5411502 (1995-05-01), Zair
patent: 5743902 (1998-04-01), Trost
patent: 5860968 (1999-01-01), Wojcik et al.
patent: 6413268 (2002-07-01), Hartman
patent: 6699238 (2004-03-01), Sagehashi et al.

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