Method and apparatus for providing notification function in analyte monitoring systems

  • US 10,349,874 B2
  • Filed: 08/31/2017
  • Issued: 07/16/2019
  • Est. Priority Date: 09/29/2009
  • Status: Active Grant
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First Claim
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1. An analyte monitoring system, comprising:

  • an in vivo analyte sensor in operative contact with an analyte, the analyte sensor adapted to generate a plurality of data points associated with a monitored analyte level and a corresponding time;

    a receiving device adapted to receive the plurality of data points generated by the analyte sensor; and

    logic implemented by the receiving device, to;

    determine a rate of change of the analyte level based on the received plurality of data points;

    determine if the rate of change indicates a projected analyte level exceeds an alarm threshold within a predetermined amount of time;

    perform an anticipated alarm condition persistence evaluation when the determined rate of change indicates that the projected analyte level exceeds the alarm threshold within the predetermined amount of time, by at least;

    fitting the plurality of data points generated by the analyte sensor to a line;

    determining a standard deviation for the plurality of data points generated by the analyte sensor based at least on the line and the corresponding times for each data point of the plurality of data points;

    determining that a probability that an analyte level at a future time is greater than a predetermined threshold associated with a glycemic condition, based at least in part on the standard deviation; and

    when the probability is greater than an alarm threshold, output an alarm to alert a user of the glycemic condition.

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