Signal processing for continuous analyte sensor

  • US 8,233,958 B2
  • Filed: 10/12/2009
  • Issued: 07/31/2012
  • Est. Priority Date: 12/09/2003
  • Status: Active Grant
First Claim
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1. A method for compensating for a time lag of continuous analyte sensor data, the method comprising:

  • receiving sensor data from a continuous analyte sensor, wherein the sensor data comprises a) a physiological time lag with respect to blood analyte data or reference analyte data, b) a membrane-induced time lag, or c) a computationally-induced time lag;

    continuously and/or intermittently estimating, using a processor module, analyte values based on the sensor data, wherein estimating comprises compensating analyte values based on a first time lag associated with the sensor data, evaluating analyte values compensated for the first time lag with time-corresponding received analyte values to determine an updated time lag associated with the sensor data, and compensating analyte values based on the updated time lag associated with the sensor data; and

    continuously or intermittently providing, using an output module, an output based on the estimated analyte values.

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