Haptic element using ion beam implantation for an intraocular le

Details Haptic element using ion beam implantation for an intraocular le Haptic element using ion beam implantation for an intraocular le

1986-08-13

1988-01-12

Frinks, Ronald L.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Eye prosthesis

Intraocular lens

427 2, A61F 216, A01N 102

Patent

active

047189053

ABSTRACT:
An implantable intraocular lens for use within a human eye is provided with enhanced carrier or haptic loops for locating, supporting and maintaining the lens device in a desired position within the ocular chamber of an eye. Enhanced haptic longevity and biocompatibility is provided by a surface ion coating the polypropylene haptic on at least the surfaces making tissue contact. The biocompatible protective ion coating is applied by ion beam implantation. The biocompatible protective ion coating is preferably nitrogen, carbon, silicon or aluminum.

REFERENCES:
patent: 4174543 (1979-11-01), Kelman
patent: 4298995 (1981-11-01), Poler
patent: 4363143 (1982-12-01), Callahan
patent: 4404694 (1983-09-01), Kelman
patent: 4418431 (1983-12-01), Feaster
Dubroff Model 044B Anterior Chamber Lens (advertisement) Intermedics Intraocular, 2 pages, Jan. 1984.
Apple et al, "Biocompatibility of Implant Materials: A Review and Scanning Electron Microscopic Study", Am. Intra-Ocular Implant Soc. J., vol. 10, pp. 53-66 (1984).
Sionshansi, P., "Ion Beam Modification of Materials for Industry", Thin Solid Films, vol. 118, pp. 61-71 (1984).
Sionshansi, et al, "Wear Improvement of Surgical Titanium Alloys by Ion Implantation", J. Vac. Sci. Technol., A 3(b), pp. 2670-2674 (Nov./Dec. 1985).
Surface Modification by Ion Beams", by Spire Corporation, 4 pages (brochure).

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