Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Eye prosthesis – Intraocular lens
Patent
1994-01-28
1996-01-02
Jones, Mary Beth O.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Eye prosthesis
Intraocular lens
A61F 216
Patent
active
054804264
ABSTRACT:
An intraocular lens suitable for scleral fixation is provided, having a disk-shaped lens optic with two flexible haptics projecting outwardly from opposite points on the lens optic's periphery, each haptic including one or more suture holes for use in suturing the haptic to the ciliary sulcus of an eye during implantation surgery. The suture holes are positioned such that they are located substantially at the haptic apexes when the lens is implanted and the haptics have been flexed inwardly a predetermined amount. In addition, the suture holes are sized to be in the range of 0.20 to 0.25 millimeters, which is large enough to receive standard sutures, but small enough to prevent excessive movement of the haptic relative to the suture and to inhibit tissue ingrowth and incarceration. This configuration minimizes the possibility of lens tilting, decentration and rotation.
REFERENCES:
patent: 4041552 (1977-08-01), Ganias
patent: 4304012 (1981-12-01), Richard
patent: 4327450 (1982-05-01), Girard
patent: 4409690 (1983-10-01), Gess
patent: 4666444 (1987-05-01), Pannu
patent: 4778463 (1988-10-01), Hetland
Physicians' Desk Reference for Ophthalmology (book), 14th Edition, 1986, Publisher: Edward R. Barnhart, pp. 169-170, Coburn Models 6Z and 62 UV 623-6.
IOPTEX, Control-Loop Haptic, Ultra C-Loop Model C304, Jun. 1983.
Bloomberg, Leroy, "Buried-Knot Fixation of a Single-Piece PCL", Sep. 1991, pp. 1-3.
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