Collagen replacement prothesis for the cornea

Details Collagen replacement prothesis for the cornea Collagen replacement prothesis for the cornea

1984-12-18

1986-04-08

Apley, Richard J.

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

Eye prosthesis

Corneal implant

128DIG8, 623 4, A61F 214

Patent

active

045810303

ABSTRACT:
This invention relates to a prosthetic replacement for the cornea and particularly to a transparent collagen material useful for making such a prosthesis and to methods for making such transparent collagen material. The prosthesis is preferably composed of a native, non-fibrilized, transparent collagen material formed from a soluble collagen solution by ultracentrifuging to form a pellet and fixing the same pellet, whereby the collagen material has less than 5% absorbance of light at 900 nm for a 5 mm thick sample and comprises polyhydroxyethylmethacrylate or vitrosin, in a range of from 0.01 to 50.0 percent by weight, based on the collagen protein.

REFERENCES:
patent: 4223984 (1980-09-01), Miyata et al.
patent: 4298004 (1981-11-01), Schachar et al.
patent: 4427808 (1984-01-01), Stol et al.

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