Fabrication of an intraocular lens

Details Fabrication of an intraocular lens Fabrication of an intraocular lens

1988-10-26

1992-04-14

Frinks, Ronald

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Including step of mold making

264 11, 623 6, 156182, B29D 1100, A61F 216

Patent

active

051045907

ABSTRACT:
A lens, having an optical power surface, which may have multiple radii portions or aspherical portions as well as spherical portions, is molded in a coined mold. A pair of core pins, positioned within the mold cavity during the lens forming process, will produce a pair of haptic-mounting holes within the lens. As the lenses are subsequently tumbled to remove flash, indentations will form adjacent to the haptic-mounting holes. These indentations allow for tangential attachment of the haptic to the lens which, in turn, enables maximum flexibility without exceeding the width of the optic.

REFERENCES:
patent: 385905 (1888-07-01), Cannon
patent: 2823417 (1958-02-01), Pasini et al.
patent: 4179484 (1979-12-01), Neefe
patent: 4659524 (1987-04-01), Neefe
patent: 4753520 (1988-06-01), Silverglate
patent: 4769033 (1988-09-01), Nordan
patent: 4895585 (1990-01-01), Angenent et al.

Affiliated with

Also associated with

Rating

Fabrication of an 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 Fabrication of an intraocular lens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fabrication of an intraocular lens will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2347234