ADVANCED ANALYTE SENSOR CALIBRATION AND ERROR DETECTION
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Abstract
Systems and methods for processing sensor data and self-calibration are provided. In some embodiments, systems and methods are provided which are capable of calibrating a continuous analyte sensor based on an initial sensitivity, and then continuously performing self-calibration without using, or with reduced use of, reference measurements. In certain embodiments, a sensitivity of the analyte sensor is determined by applying an estimative algorithm that is a function of certain parameters. Also described herein are systems and methods for determining a property of an analyte sensor using a stimulus signal. The sensor property can be used to compensate sensor data for sensitivity drift, or determine another property associated with the sensor, such as temperature, sensor membrane damage, moisture ingress in sensor electronics, and scaling factors.
16 Citations
22 Claims
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1-20. -20. (canceled)
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21. A method of calibrating at least one sensor data point from a transcutaneous glucose sensor, the method comprising:
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receiving a calibration code, wherein the calibration code comprises a priori information, wherein the a priori information accounts for at least one sensor characteristic of the transcutaneous glucose sensor determined prior to a sensor session in a host; receiving the at least one sensor data point from the transcutaneous glucose sensor; and converting, in real-time, at least one sensor data point to an estimated glucose value, based at least in part on the calibration code. - View Dependent Claims (22)
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Specification