• US 20100280341A1
  • Filed: 03/05/2010
  • Published: 11/04/2010
  • Est. Priority Date: 03/28/2008
  • Status: Active Grant
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First Claim
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1. A device for continuous measurement of an analyte concentration, the device comprising:

  • a sensing mechanism configured to continuously measure a signal associated with an analyte concentration in a host; and

    a membrane located over the sensing mechanism, wherein the membrane comprises a polyurethane and a hydrophilic portion;

    wherein the device is configured to provide, at analyte concentrations of from about 40 mg/dL to about 400 mg/dL, a level of accuracy corresponding to a mean absolute relative difference of no more than about 8% over a sensor session of at least about 3 days, wherein one or more reference measurements associated with calculation of the mean absolute relative difference are determined by analysis of blood.

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