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Determining usability of analytical test strip

  • US 9,879,302 B2
  • Filed: 01/21/2016
  • Issued: 01/30/2018
  • Est. Priority Date: 12/23/2013
  • Status: Active Grant
First Claim
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1. A method for the determination of an analyte in a bodily-fluid sample, the method comprising:

  • ascertaining whether an enzymatic reagent layer of an electrochemical-based analytical test strip has been exposed to a predetermined humidity level by measuring an electrical characteristic of the enzymatic reagent layer, the electrochemical-based analytical test strip having;

    an electrically-insulating bottom layer;

    a patterned electrically-conductive layer disposed on the electrically insulating bottom layer and including a first patterned portion and a second patterned portion;

    an enzymatic reagent layer disposed on the first patterned portion, the second patterned portion and the electrically-insulating bottom layer such that the enzymatic reagent layer bridges the first patterned portion and the second patterned portion;

    a patterned spacer layer;

    a top electrically conductive layer; and

    an electrically-insulating top layer;

    applying the bodily-fluid sample to the electrochemical-based analytical test strip; and

    determining the analyte based on an electrochemical response of the electrochemical-based analytical test strip.

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