Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Eye prosthesis – Corneal implant
Patent
1987-07-07
1989-09-12
Apley, Richard J.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Eye prosthesis
Corneal implant
623 6, A61F 214
Patent
active
048656011
ABSTRACT:
An intraocular prosthesis for implanting in an annular void extending radially into the tissues of the eye between the anterior surface of the cornea of the eye and the posterior surface of the ciliary body of the eye, for replacing for example a diseased intraocular portion of the eye which has been removed. The prosthesis is a circular, transparent, elastomeric optical element having a peripheral edge and a non-rigid or flexible porous skirt which extends radially from the periphery of the element. The skirt encircles the element and is positioned to extend radially into the void. An annular, flexible porous portion having a pore size in the range of about 25-90 microns, and preferably about 60 microns, is included with the skirt. The porous portion surrounds the element and is disposed in contact with the tissues of the eye surrounding the void to allow fibrous growth into the pores of the porous portion. A plurality, preferably six, spoke-like, porous extensions may be included. Hence, with the prosthesis intraocular portions of the eye, such as a diseased cornea or a diseased lens, may be replaced. For replacement of the cornea, the ocular element would have a convex, anterior surface and a concave, posterior surface.
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Caldwell Delmar R.
Jacob-LaBarre Jean
Apley Richard J.
Prizant James
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