Adjustable flow rate glaucoma shunt and method of using same

Details Adjustable flow rate glaucoma shunt and method of using same Adjustable flow rate glaucoma shunt and method of using same

1995-05-05

1997-05-06

Weiss, John G.

Surgery

Devices transferring fluids from within one area of body to...

604 9, 604294, A61M 500, A61M 3500

Patent

active

056265581

ABSTRACT:
An adjustable flow rate implantable shunt device for use in treating glaucoma is provided. The device comprises a tubular member having a first sealed end and an open second end which are joined by a wall. The first end is inserted into the anterior portion of the eye for receipt of aqueous humor, and the second end is fastened to the sclera of the eye. The first end of the shunt device is sealed when implanted, so that flow of aqueous humor through the device immediately after implantation is prevented. After a sufficient post-implantation period such that a fibrous capsule has formed around the shunt device, at least one perforation is made along the segment of the wall of the tubular member which is located within the anterior portion of the eye to allow aqueous humor to flow through and out of the device, thereby lowering intraocular pressure within the eye. The flow rate of aqueous humor through the device can be adjusted periodically by placing additional perforations along the portion of the tubular member located within the anterior chamber of the eye. The perforations are conveniently made using a laser.

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