Method and apparatus for delivering laser energy for ophthalmic

Details Method and apparatus for delivering laser energy for ophthalmic Method and apparatus for delivering laser energy for ophthalmic

1983-01-12

1985-06-04

Rosenbaum, C. Fred

Surgery

Truss

Pad

128395, 128397, 219121LB, 219121LS, 219121LT, 351200, A61B 300, A61B 1736

Patent

active

045208166

ABSTRACT:
An ophthalmic laser surgery system includes a slit lamp (14) with an illuminator (16) and a biomicroscope (26). The high power laser (34) delivers a laser beam (36) which is mixed with the output from a lower power laser (38) with a dichroic mirror (54). The output of the dichroic mirror (54) is input to the harmonic generator (60) to generate harmonics thereof. The output of the harmonic generator (60) is optically directed to move along the rotational axis through rotational supports (22) and (30). The laser beam is then directed by mirrors (72) and (80) to a focusing lens (90) and a filter (92) to a dielectric mirror (94). The dielectric mirror (94) mixes the illumination from the slit lamp (14) with the laser beam for delivery to the eye (12). A micromanipulator (102) adjusts the position of the dielectric mirror (94). A control circuit (104) controls the operation of the laser (34). A protection device (110) has filters for disposal within the path of the viewing axis of the biomicroscope to prevent damage to the surgeon's eyes.

REFERENCES:
patent: 2235319 (1941-03-01), Jobe
patent: 3369101 (1968-02-01), Curcio
patent: 3703176 (1972-11-01), Vassiliadis et al.
patent: 3710798 (1973-01-01), Bredemeier
patent: 3750670 (1973-08-01), Palanos et al.
patent: 3828788 (1974-08-01), Krasnov et al.
patent: 4408602 (1983-10-01), Nakajima
IBM Technical Disclosure Bulletin, vol. 6, No. 12, May 1964, pp. 57-58.
Cavitron Model 3000 Argon Photocoagulation Laser, Cavitron Surgical Systems, 1980.

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