Systems and methods for replacing signal artifacts in a glucose sensor data stream

  • US 9,585,607 B2
  • Filed: 04/04/2012
  • Issued: 03/07/2017
  • Est. Priority Date: 08/22/2003
  • Status: Active Grant
First Claim
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1. A method of analyzing data from an analyte sensor using a continuous analyte monitoring system, comprising:

  • receiving data from an analyte sensor, the data comprising at least one sensor data point;

    filtering the received data to generate filtered data;

    comparing the received data with the filtered data to obtain at least one residual;

    determining a first signal artifact event has occurred when the at least one residual is exceeds a first threshold value;

    determining a second signal artifact event has occurred when the at least one residual exceeds a second, different threshold value;

    disabling or enabling display of a first graphical representation of the received data based on the determination that the first signal artifact has occurred, wherein the first graphical representation is selected from a group consisting of a graphical indication of glucose trend, a numerical estimated analyte value, and a range of glucose values; and

    disabling or enabling display of a second graphical representation of the received data based on the determination that the second signal artifact has occurred,wherein the second graphical representation is selected from the group consisting of the graphical indication of glucose trend, the numerical estimated analyte value, and the range of glucose values,wherein the selected second graphical representation is different than the selected first graphical representation, andwherein the selected second graphical representation is according to the second threshold value that is higher than the first threshold value, and corresponds to the second signal artifact event that indicates a higher severity than the first signal artifact event.

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