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Self-powered analyte sensor

  • US 10,004,441 B2
  • Filed: 11/14/2016
  • Issued: 06/26/2018
  • Est. Priority Date: 02/26/2009
  • Status: Active Grant
First Claim
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1. A method for monitoring a level of an analyte, the method comprising:

  • electrooxidizing or electroreducing, on a working electrode within an analyte sensor assembly configured to be positioned onto a skin of a patient, a primary reactant in a presence of an analyte-responsive enzyme;

    electroreducing or electrooxidizing a secondary reactant on a counter electrode within the analyte sensor assembly; and

    maintaining a current directly proportional to an analyte concentration in an absence of any reference voltage, the current being maintained by a resistor disposed between the working electrode and the counter electrode, wherein the resistor has an R value chosen from within a range of R values for which the current is independent of the R value at an analyte concentration at a top of its physically relevant range.

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