Advanced analyte sensor calibration and error detection

  • US 10,835,162 B2
  • Filed: 09/27/2019
  • Issued: 11/17/2020
  • Est. Priority Date: 04/15/2011
  • Status: Active Grant
First Claim
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1. A method comprising:

  • manufacturing a plurality of transcutaneous electrochemical glucose sensors, wherein the plurality of transcutaneous electrochemical glucose sensors comprise a first transcutaneous electrochemical glucose sensor, wherein the first transcutaneous electrochemical glucose sensor is configured to measure glucose in an interstitial fluid of the host, wherein the first transcutaneous electrochemical glucose sensor comprises an ex vivo portion and an in vivo portion, wherein the first transcutaneous electrochemical glucose sensor is configured to operably connect to sensor electronics during a sensor session;

    obtaining data associated with a first characteristic of the first transcutaneous electrochemical glucose sensor prior to the sensor session;

    determining, based at least in part on the data associated with the first characteristic, a first sensitivity associated with the first transcutaneous electrochemical glucose sensor;

    assigning a calibration code to the first transcutaneous electrochemical glucose sensor, wherein the calibration code is based at least in part on the first sensitivity;

    storing information associated with the calibration code on the sensor electronics;

    obtaining data associated with a second characteristic of the first transcutaneous electrochemical glucose sensor during the sensor session;

    determining, based at least in part on the data associated with the second characteristic, a second sensitivity associated with the first transcutaneous electrochemical glucose sensor;

    generating, based at least in part on the second sensitivity, a glucose value associated with an estimated glucose concentration; and

    displaying the glucose value on a user interface.

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