Hydrophilic, swellable coatings for biosensors

  • US 6,784,274 B2
  • Filed: 08/06/2002
  • Issued: 08/31/2004
  • Est. Priority Date: 03/27/1995
  • Status: Expired due to Term
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First Claim
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1. A method for forming an implantable biosensor having a biocompatible coating, the method comprising coating the implantable biosensor with a hydrogel composition formed by admixing (a) a diisocyante, the diisocyanate comprising about 50 mol % of the reactants in the admixture;

  • (b) a hydrophilic polymer selected from, the group consisting of a hydrophilic polymer diol, a hydrophilic polymer diamine and combinations thereof; and

    , optionally, (c) a chain extender, thereby forming the implantable biosensor having the hydrogel coating, wherein the hydrogel composition has a water pickup of at least about 120% by weight.

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