Oxygen enhancing membrane systems for implantable devices

  • US 8,255,033 B2
  • Filed: 04/25/2006
  • Issued: 08/28/2012
  • Est. Priority Date: 07/25/2003
  • Status: Active Grant
First Claim
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1. A device for continuous in vivo measurement of a glucose concentration in a host, the device comprising:

  • an electroactive surface operatively connected to electronic circuitry configured to generate a signal associated with a concentration of glucose in a host; and

    a membrane located over the electroactive surface and configured to control a flux of oxygen and glucose therethrough, wherein the membrane comprises a material that has an oxygen permeability of from about 5 Barrers to about 1000 Barrers, wherein the material comprises a copolymer comprising a fluorocarbon segment and a polyurethane segment, wherein the membrane further comprises an enzyme configured to react with glucose.

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