Intraocular lens haptic with enlarged anchoring head

Details Intraocular lens haptic with enlarged anchoring head Intraocular lens haptic with enlarged anchoring head

1992-07-06

1994-04-26

Shay, Randy C.

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

Eye prosthesis

Intraocular lens

A61F 216

Patent

active

053062973

ABSTRACT:
The present invention provides an improved intraocular lens haptic having an enlarged anchoring head and an integrally formed support portion extending therefrom. An oblong hole is provided in the anchoring head. The haptic is punched from a sheet or ribbon of polyvinylidene fluoride film, and thereafter a lens optic is cast around the anchoring head. During the casting operation, the lens optic material fills in the oblong hole and all spaces around the anchoring head. Thus, the anchoring head is firmly embedded in an outer periphery of the lens optic. Because the haptic is punched, it can be fabricated to have a variety of different anchoring head shapes and to have a variety of support portion shapes with varying numbers of bends at different bend angles. The orientation of the oblong hole within the anchoring head is also easily changed as is the orientation of the anchoring head relative to the support portion, although both structures are integral and formed from a single sheet of material.

REFERENCES:
patent: 4242760 (1981-01-01), Rainin
patent: 4315337 (1982-02-01), Choyce
patent: 4439873 (1984-04-01), Poler
patent: 4615701 (1986-10-01), Woods
patent: 4617023 (1986-10-01), Peyman
patent: 4790846 (1988-12-01), Christ et al.
patent: 4880426 (1989-11-01), Ting et al.
patent: 4888013 (1989-12-01), Ting et al.
patent: 4894062 (1990-01-01), Knight et al.
patent: 4938767 (1990-07-01), Ting et al.
patent: 4961746 (1990-10-01), Lim et al.
patent: 4964206 (1990-10-01), Knoll et al.
patent: 4978354 (1990-12-01), Van Gent
patent: 4995879 (1991-02-01), Dougherty
patent: 5007928 (1991-04-01), Okamura et al.
patent: 5141507 (1992-08-01), Parekh

Affiliated with

Also associated with

Rating

Intraocular lens haptic with enlarged anchoring head does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Intraocular lens haptic with enlarged anchoring head, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intraocular lens haptic with enlarged anchoring head will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1709302