Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Eye prosthesis – Intraocular lens
Patent
1984-11-13
1986-10-07
Frinks, Ronald L.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Eye prosthesis
Intraocular lens
A61F 216
Patent
active
046157018
ABSTRACT:
An intraocular lens for use following extracapsular cataract extraction is provided with an optic that has one or more resilient haptics secured at the inner end thereof to the optic and normally extending outwardly from the optic, terminating in a free outermost end spaced from the peripheral edge of the optic. Prior to lens implantation the elongated haptic is placed under tension until its outer end is adjacent the optic, forming a loop, and the outer end is adjacent the optic, forming a loop, and the outer end of the haptic is then releasably attached to the optic, maintaining the tension and the loop. After implantation of the lens the outer end of the haptic is detached from the optic and, by virtue of the memory retaining characteristic thereof, the position fixation haptic returns toward its normal position extending outwardly from the optic, eliminating the loop.
REFERENCES:
patent: 4092743 (1978-06-01), Kelman
patent: 4199566 (1979-07-01), Shearing
patent: 4251887 (1981-02-01), Anis
patent: 4261065 (1981-04-01), Tennant
patent: 4298994 (1981-11-01), Clayman
patent: 4363143 (1982-12-01), Callahan
patent: 4370760 (1983-02-01), Kelman
patent: 4494254 (1985-01-01), Lopez
patent: 4527294 (1985-07-01), Heslin
Lens Styles from Cilco (advertisement brochure) 6 pages, pp. 1,2,4 and 6 cited, Styles SAC 3, SAC 5, PC 15, S2 and S2-B, Cilco, Inc. 1616 13th Ave., Box 1680, Huntington, West VA, Oct. 1982.
Intraocular Lens Implantation-Techniques & Complications (Book) by Clayman et al, the C. V. Mosby Co. (publisher) 1983, pp. 152-155.
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