Surgery – Instruments – Light application
Patent
1994-09-28
1995-12-05
Shay, David M.
Surgery
Instruments
Light application
606 10, 606 15, 606 18, 606171, 604 20, 604 22, 601 2, A61N 506
Patent
active
054724406
ABSTRACT:
The present invention provides an apparatus and method for performing a filtering operation for glaucoma. The apparatus is a jig comprising a base for supporting the jig on the eye. An offset aperture in the base above the cornea allows cutting of a flap in the sclera. An arm is provided for supporting an oscillating blade and fiberoptic laser assembly. The blade and laser are mounted on the arm. The arm is located in the base of the jig in a slot. To cut a flap in the sclera, the oscillating blade and laser assembly is slid along the slot in the jig, thereby creating a proper angle of dissection with the blade. After the flap is elevated, the fiberoptic laser burns a hole through the choroid layer. An egress of fluid through the hole eliminates the excess pressure in the vitreous humor.
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