Fiber collagen contact lens

• US 4,268,131 A
• Filed: 04/11/1979
• Issued: 05/19/1981
• Est. Priority Date: 04/11/1979
• Status: Expired due to Term

• Current Assignee: Vision Gaming & Technology Incorporated
• Original Assignee: Opticol Corporation
• Inventors: Rubin, Albert L., Miyata, Teruo, Dunn, Michael W., Stenzel, Kurt H.
• Primary Examiner(s): Corbin, John K.
• Assistant Examiner(s): Sugarman, Scott J.
• Application Number:
  US06/029,091
• Time in Patent Office: 769 Days
• Field of Search: 351/160-162, 435/273, 260/117
• US Class Current: 351/160.00H
• CPC Class Codes: C08L 89/00 Compositions of proteins; Compositions of derivatives thereof foodstuff preparations A23J3/00
• CPC Class Codes: C08L 89/06 derived from leather or skin , e.g. gelatin
• CPC Class Codes: G02B 1/043 Contact lenses
• CPC Class Codes: G02C 7/04 Contact lenses for the eyes disinfection or sterilisation of contact lenses A61L12/00

Abstract

Soft contact lenses are made from purified fiber collagen and mixtures of such fiber with purified solubilized collagen.

Claims

1. As an article of manufacture a soft contact lens consisting of a lens-shaped, subsequently crosslinked gel of defatted fiber collagen, said gel comprising 1.0 to 30.0 wt. % collagen and the balance water.

2. A soft contact lens of claim 1 in which the fiber collagen is animal tendon collagen.

3. A soft contact lens of claim 1 in which the fiber collagen is beef tendon collagen.

4. A soft contact lens of claim 1 in which the fiber collagen is chemically modified collagen.

5. As an article of manufacture a soft contact lens consisting of a lens-shaped, subsequently crosslinked gel of a mixture of defatted fiber collagen and defatted solubilized collagen, said gel comprising 1.0 to 30.0 wt. % collagen and the balance water.

6. A soft contact lens of claim 5 in which the solubilized collagen is enzyme-solubilized telopeptide-poor collagen.

7. A soft contact lens of claim 5 in which the weight ratio of fiber collagen to solubilized collagen in the mixture ranges from about 1:

10 to about 10;

1.