Advanced analyte sensor calibration and error detection

  • US 10,624,568 B2
  • Filed: 08/13/2019
  • Issued: 04/21/2020
  • Est. Priority Date: 04/15/2011
  • Status: Active Grant
First Claim
Patent Images

1. A method of making an analyte concentration measuring system for use by a host during a sensor session with a transcutaneous electrochemical analyte sensor, the method comprising:

  • applying a membrane located over at least a portion of an electrode of the transcutaneous electrochemical analyte sensor, wherein the transcutaneous electrochemical analyte sensor is configured to generate a signal indicative of an analyte concentration, wherein the transcutaneous electrochemical analyte sensor comprises;

    an ex vivo portion configured to remain outside of a body of the host during the sensor session; and

    an in vivo portion configured to be inserted into the body of the host and remain, during the sensor session, in the body of the host;

    obtaining data associated with a plurality of sensor characteristics of the transcutaneous electrochemical analyte sensor prior to the sensor session, wherein obtaining the data comprises at least;

    measuring a first sensor characteristic, wherein the first sensor characteristic is associated with an in vitro glucose sensitivity corresponding to a sample set of transcutaneous electrochemical analyte sensors;

    measuring a second sensor characteristic, wherein the second sensor characteristic is associated with a thickness of the membrane of the transcutaneous electrochemical analyte sensor; and

    assigning one or more calibration codes to the transcutaneous electrochemical analyte sensor, wherein the one or more calibration codes is based at least in part on the measured first sensor characteristic associated with the in vitro glucose sensitivity and the measured second sensor characteristic associated with the thickness of the membrane.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×