Sensor head for use with implantable devices

  • US 20050103625A1
  • Filed: 12/22/2004
  • Published: 05/19/2005
  • Est. Priority Date: 07/27/2001
  • Status: Active Grant
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First Claim
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1. A sensor for use in a glucose measuring device, the sensor comprising:

  • a non-conductive body;

    a first electrode and a second electrode, wherein each of the electrodes passes through the non-conductive body, forming an electrochemically reactive surface at one end of the sensor and an electronic connection at another end of the body, wherein an electrochemically reactive surface area of the second electrode is greater than an electrochemically reactive surface area of the first electrode; and

    a multi-region membrane covering the first electrode and the second electrode, wherein the multi-region membrane comprises an immobilized enzyme domain comprising an enzyme in at least a portion thereof, and wherein the electrochemical reactive surface area of the second electrode is situated at a location distant from the enzyme.

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