System and methods for processing analyte sensor data

  • US 8,788,006 B2
  • Filed: 12/11/2009
  • Issued: 07/22/2014
  • Est. Priority Date: 08/01/2003
  • Status: Active Grant
First Claim
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1. A method for calibrating a substantially continuous analyte sensor, the method comprising:

  • receiving a sensor data stream comprising one or more sensor data points from a substantially continuous analyte sensor;

    receiving reference data comprising one or more reference data points from a reference analyte monitor;

    using a processor module to form at least two matched data pairs by matching reference analyte data to substantially time corresponding sensor data;

    using the processor module to form a calibration set comprising the at least two matched data pairs;

    using the processor module to create a conversion function based on the calibration set;

    using the processor module to convert sensor data into calibrated sensor data using the conversion function;

    subsequently receiving an additional reference data point and creating a new matched data pair using the additional reference data point;

    using the processor module to evaluate the calibration set with the new matched data pair to ensure the calibration set has substantially distributed high and low matched data pairs over a predetermined time range; and

    using the processor module to subsequently modify the conversion function based on the evaluation.

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