Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Eye prosthesis – Intraocular lens
Patent
1985-07-03
1987-04-28
Frinks, Ronald L.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Eye prosthesis
Intraocular lens
A61F 216
Patent
active
046611088
ABSTRACT:
Intraocular lens including a meniscus lens optic with a convex anterior surface, a concave posterior surface and a double barrier ledge. The double barrier ledge includes an interrupting channel. A plurality of loops, such as continuously curved J-shaped blue loops, secure at an angle of 0.degree.-10.degree. to the plane of the optic. The double barrier ledge, including the U-shaped channel or other geometrically configured channel between the two ledges, provides a double barrier ledge like seal around the posterior capsule of the eye holding back migration of the cortical epithelium. The double barrier ledge causes a seal which prevents aqueous flowing back to the optical zone of the capsular bag. In the case of a dissection or laser capsulotomy, the double barrier seal prevents vitreous strands from passing beyond and inner edge of the ledge. Other optics for lenses, such as plano-convex or bi-convex, can utilize the double ledge principle.
REFERENCES:
patent: Re31626 (1984-07-01), Hoffer
patent: Re31998 (1985-10-01), Myers
patent: 4168547 (1979-09-01), Konstantinov et al.
patent: 4244060 (1981-01-01), Hoffer
patent: 4412359 (1983-11-01), Myers
The Hoffer Ridge Lenses from Cilco (Advertisement Brochure), Cilco, Inc., 6 pages, Mar. 1983, 623-6.
New Nova Aid Kratz Elliptical Posterior Chamber Lens, Model 822, Advertisement frm Cooper Vision IOL, 3 pages, received in PTO Jul. 13, 1983, 623-6.
Grendahl Dennis T.
LeMaster William
Frinks Ronald L.
Jaeger Hugh D.
Surgidev Corporation
LandOfFree
Intraocular lens does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Intraocular lens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intraocular lens will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-474768