Techniques to improve polyurethane membranes for implantable glucose sensors

  • US 8,053,018 B2
  • Filed: 01/15/2010
  • Issued: 11/08/2011
  • Est. Priority Date: 05/22/2002
  • Status: Active Grant
First Claim
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1. A method for fabricating a device for measuring a concentration of an analyte, the method comprising:

  • providing a sensor configured to measure an analyte or a product of a reaction associated with the analyte;

    forming a solution comprising a blend of a first polymer and a second polymer, wherein the first polymer and the second polymer are not same polymers wherein the second polymer is a hydrophobic-hydrophilic co-polymer comprising a hydrophobic segment and a hydrophilic segment, wherein a segment of the first polymer and a segment of the second polymer are both formed of a same monomer unit;

    maintaining the solution at a temperature sufficient to maintain solubility of the first polymer with the second polymer;

    applying the solution to the sensor;

    forming a film from the solution at the temperature; and

    drying the film to form a membrane.

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