Larry J Blake

US Patent:

54764459, Dec 19, 1995

Filed:

Aug 1, 1994

Appl. No.:

8/283961

Inventors:

George Baerveldt - Shaker Heights OH
Larry W. Blake - Coto de Caza CA

Assignee:

Iovision, Inc. - Irvine CA

International Classification:

A61M 500

US Classification:

604 8

Abstract:

An implant for use in the treatment of glaucoma is disclosed wherein the implant comprises an elastomeric plate having a non-valved elastomeric drainage tube attached thereto. The plate is curved so as to conform to the spherical anatomy of the eyeball. An annular sloped wall extends from the plate and surrounds the opening of the drainage tube into the plate. The plate is inserted beneath Tenon's capsule and sutured to the sclera utilizing temporary and non-dissolving permanent sutures. The annular wall provides a temporary sealing surface against the sclera. The drainage tube is tunnelled through the sclera and cornea and inserted into the anterior chamber, thus providing fluid communication between the anterior chamber and the elastomeric plate. The annular wall around the tube forms a temporary seal which restricts the drainage of aqueous fluid until formation of the bleb is completed. After bleb formation occurs, the temporary sutures around the wall are removed or dissolve.