Laser trabeculodissection

Details Laser trabeculodissection Laser trabeculodissection

1992-05-22

1994-12-06

Pellegrino, Stephen C.

Surgery

Instruments

Light application

606 5, 606 6, 606166, 128898, A61B 1700, A61N 500

Patent

active

053706412

ABSTRACT:
This invention contemplates the use of a surgical laser device characterized by ultra-violet or infrared radiation to achieve controlled trabeculodissection in selected regions of the trabecular meshwork and Schlemm's Canal. The surgical laser is positioned over the corneoscleral bed for non-contact delivery, or, alternatively, it is inserted under a sclera flap with a contact tip and laser radiation is directed toward the trabecular meshwork and canal of Schlemm creating an ultra-thin trabecular meshwork and Canal of Schlemm. The outflow of aqueous humor through the disected trabecular meshwork functions as a self-limiting end point to the surgery when the aqueous humor absorbs the laser energy.

REFERENCES:
patent: 4558698 (1985-12-01), O'Dell
patent: 4846172 (1989-07-01), Berlin
patent: 5123902 (1992-06-01), Muller et al.
patent: 5129895 (1992-07-01), Vassiliadis et al.

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