Device and method for determining analyte levels

  • US 8,527,026 B2
  • Filed: 03/02/2012
  • Issued: 09/03/2013
  • Est. Priority Date: 03/04/1997
  • Status: Expired due to Fees
First Claim
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1. An implantable sensor for measuring glucose, the sensor comprising:

  • an electrode configured to measure glucose; and

    a membrane disposed on at least a portion of the electrode, the membrane comprising a first domain that comprises polyurethane and polyvinylpyrrolidone and a second domain that comprises an enzyme, wherein the first domain is configured to allow transport of glucose and oxygen and prevent entry of inflammatory cells, and wherein the first domain is distal to the second domain with respect to the electrode.

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