DUAL ELECTRODE SYSTEM FOR A CONTINUOUS ANALYTE SENSOR

  • US 20080083617A1
  • Filed: 10/01/2007
  • Published: 04/10/2008
  • Est. Priority Date: 10/04/2006
  • Status: Active Grant
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First Claim
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1. A continuous glucose sensor, the sensor comprising:

  • a first working electrode comprising a first electroactive surface disposed beneath an active enzymatic portion of a sensor membrane, wherein the first working electrode is configured to generate a first signal having a first noise component related to a noise-causing species; and

    a second working electrode comprising a second electroactive surface disposed beneath an inactive-enzymatic or a non-enzymatic portion of the sensor membrane, wherein the second working electrode is configured to generate a second signal having a second noise component related to the noise-causing species;

    wherein the first electroactive surface and the second electroactive surface are each dimensioned to integrate at least one signal generated by a plurality of local point sources that produce the noise-causing species, such that the first noise component and the second noise component are substantially equivalent.

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