Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Eye prosthesis – Intraocular lens
Patent
1983-05-13
1986-03-18
Frinks, Ronald L.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Eye prosthesis
Intraocular lens
A61F 116, A61F 124
Patent
active
045758786
ABSTRACT:
An intraocular lens for implant in the eye, particularly in the anterior chamber, includes a lens body and at least three flexible, resilient, fixation filaments extending from the periphery of the lens body and having curved intermediate and distal portions to minimize drainage blockage in the angle of intersection of the cornea and the iris while minimizing the risk of passing of a filament through the pupil and tucking a filament in the iris during insertion of the intraocular lens. The use of at least three fixation filaments reduces twisting or turning of the intraocular lens and produces secure centralization of the intraocular lens with increased stability and reduced chance of inadvertent movement of the intraocular lens in the eye.
REFERENCES:
patent: 4159546 (1979-07-01), Shearing
patent: 4244060 (1981-01-01), Hoffer
Covered Bridge (Book) An Update on Lens Implantation, by John H. Sheets, M.D., or Bridge over Troubled Waters, 1977, pp. 4-13.
The Simcoe Posterior Chamber Lens (Brochure) by Cilco, Cilco, Inc., 1616 13th Ave., Huntington, West Virginia 25701, Feb. 1980, 5 pages.
The Lindstrom Centrex Style 20 Posterior Chamber Lens, by Surgidev, Surgidev Corp., 1421 State St., Santa Barbara, CA 93101, (Brochure) 4 pages, Jan. 4, 1981.
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