Intraocular implant having coating layer

• US 4,955,901 A
• Filed: 05/30/1989
• Issued: 09/11/1990
• Est. Priority Date: 05/31/1988
• Status: Expired due to Term

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Nakajima, Ikuo, Nishiguchi, Toshiji, Okamura, Moriyuki
• Primary Examiner(s): Frinks, Ronald
• Application Number:
  US07/357,783
• Time in Patent Office: 469 Days
• Field of Search: 623/6, 623/5, 623/901, 427/2, 427/34, 427/37, 427/40, 427/41
• US Class Current: 623/6.57
• CPC Class Codes: A61F 2/1613 having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
• CPC Class Codes: A61F 2002/0081 directly machined on the prosthetic surface, e.g. holes, grooves A61F2/30771 takes precedence
• CPC Class Codes: A61L 27/34 Macromolecular materials
• CPC Class Codes: C08J 7/123 Treatment by wave energy or particle radiation C08J7/18 takes precedence
• CPC Class Codes: G02B 1/043 Contact lenses
• CPC Class Codes: Y10S 623/901 Method of manufacturing prosthetic device

Abstract

An intraocular implant comprises a lens substrate having on the surface thereof a coating layer, the coating layer being comprised of a specific compound.

Claims

1. An intraocular implant, comprising a lens substrate having on the surface thereof a coating layer, wherein said coating layer is comprised of at least one compound selected from the group consisting of;

an amino compound represented by the general formula;

R₁ -NH₂, wherein R₁ represents a hydrocarbon group having not more than 10 carbon atoms;

a cyan compound represented by the general formula;

R₂ -CN, wherein R₂ represents a hydrocarbon group having not more than 10 carbon atoms;

an azo compound represented by the general formula;

R₃ -N═

N-R₄, wherein R₃ and R₄ represent hydrocarbon groups having not more than 10 carbon atoms in total or hydrogen atoms; and

an amino acid represented by the general formula;

R₅ -CH(NH₂)COOH, wherein R₅ represents a substituent constituted of C, H or N.

2. The intraocular implant according to claim 1, wherein said lens substrate comprises a material selected from the group consisting of polymethyl methacrylate, hydroxyethyl methacrylate, a silicone resin and a polyurethane resin.

3. The intraocular implant according to claim 1, wherein said coating layer is formed by plasma polymerization.

4. The intraocular implant according to claim 1, wherein said coating layer is formed by vacuum deposition polymerization.

5. The intraocular implant according to claim 1, wherein said coating layer has a thickness of from 50 to 20,000 Å

.

6. The intraocular implant according to claim 5, wherein said coating layer has a thickness of from 50 to 3,000 Å

.