Signal processing for continuous analyte sensor

  • US 8,251,906 B2
  • Filed: 04/15/2009
  • Issued: 08/28/2012
  • Est. Priority Date: 12/09/2003
  • Status: Active Grant
First Claim
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1. A glucose sensor system for monitoring glucose concentration in a biological sample of a host, the system comprising:

  • a continuous glucose sensor configured to produce sensor data indicative of a host'"'"'s glucose concentration, wherein the continuous glucose sensor comprises a sensing region and a sensing membrane located over the sensing region, and wherein at least a portion of the continuous glucose sensor is configured for transcutaneous implantation; and

    an electronics module configured to receive sensor data from the continuous glucose sensor, the electronics module comprising a processor configured to calibrate sensor data received from the continuous glucose sensor for a first time period so as to generate real-time glucose readings from the sensor data and the calibration;

    wherein the electronics module is further configured to detect an approaching clinical risk and to determine whether there is a possibility of avoiding the clinical risk when an approaching clinical risk is detected, the approaching clinical risk detection comprising predicting a potential glucose concentration for a second time period based at least in part on calibrated sensor data;

    wherein the system is configured to trigger a user perceptible alert responsive to the detection of an approaching clinical risk.

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