Please download the dossier by clicking on the dossier button x
×

Surface treatment of silicone hydrogel contact lenses comprising hydrophilic polymer chains attached to an intermediate carbon coating

  • US 6,630,243 B2
  • Filed: 05/20/1999
  • Issued: 10/07/2003
  • Est. Priority Date: 05/20/1999
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method for treating the surface of a silicone medical device comprising the following steps:

  • (a) subjecting the surface of the silicone medical device to a plasma-polymerization reaction in a hydrocarbon-containing atmosphere to form a polymeric carbonaceous layer on the surface of the silicone medical device having a thickness of 50 to 500 Angstroms;

    (b) forming reactive functionalities on the surface of the carbonaceous layer; and

    (c) exposing the surface of the silicone medical device to a solution of a hydrophilic reactive polymer having complementary reactive functionalities on the carbonaceous layer, thereby forming a biocompatible surface on the silicone medical device, wherein the silicone medical device is a silicone contact lens or silicone intraocular device.

View all claims
  • 7 Assignments
Timeline View
Assignment View
    ×
    ×