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Device and method for determining analyte levels

  • US 20050177036A1
  • Filed: 12/22/2004
  • Published: 08/11/2005
  • Est. Priority Date: 03/04/1997
  • Status: Active Grant
First Claim
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1. A device for measuring glucose in a bodily fluid, the device comprising:

  • a housing comprising an electronic circuit and at least two electrodes operably connected to the electronic circuit;

    a membrane disposed on the electrodes, the membrane comprising;

    a resistance layer comprising a semipermeable membrane that controls a flux of oxygen and glucose to the enzyme layer;

    an enzyme layer comprising a catalyst;

    an electrolyte layer comprising a hydrophobic coating, wherein the electrolyte layer protects against pH-mediated damage resulting from a formation of a large pH gradient; and

    a member for stabilizing the sensor in biological tissue.

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