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Analyte measurement method and system

  • US 10,429,337 B2
  • Filed: 11/03/2016
  • Issued: 10/01/2019
  • Est. Priority Date: 03/31/2010
  • Status: Active Grant
First Claim
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1. An analyte measurement system to measure a glucose concentration in physiological fluid of a user, the system comprising:

  • a test strip including a substrate having a reference electrode, a first working electrode and a second working electrode coated with a reagent layer having a mediator, the electrodes being connected to corresponding contact pads; and

    an analyte meter having a signal processor and a test circuit in connection with a test strip port that receives the contact pads of the test strip so that the meter is configured to apply a test voltage after deposition of physiological fluid on the electrodes and determine a hematocrit-corrected glucose concentration from measured first, second, third, fourth and fifth test currents at first, second, third, fourth and fifth discrete intervals after application of the test voltage by the meter in which the signal processor is programmed with instructions to determine a ratio of the first test current to the second test current raised to a power term and multiplying the ratio by the fifth test current, where the power term is a function of a first tuning parameter and a second tuning parameter in order to determine the hematocrit-corrected analyte concentration.

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