SYSTEM AND METHODS FOR PROCESSING ANALYTE SENSOR DATA FOR SENSOR CALIBRATION
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Abstract
Systems and methods for processing sensor analyte data are disclosed, including initiating calibration, updating calibration, evaluating clinical acceptability of reference and sensor analyte data, and evaluating the quality of sensor calibration. The sensor can be calibrated using a calibration set of one or more matched sensor and reference analyte data pairs. Reference data resulting from benchtop testing an analyte sensor prior to its insertion can be used to provide initial calibration of the sensor data. Reference data from a short term continuous analyte sensor implanted in a user can be used to initially calibrate or update sensor data from a long term continuous analyte sensor.
31 Citations
22 Claims
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1-20. -20. (canceled)
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21. A method for calibrating data from a glucose sensor, wherein the glucose sensor is configured for transcutaneous implantation in a host while operably coupled to on-body sensor electronics, and wherein the glucose sensor comprises a membrane system, the method comprising:
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receiving sensor data from the glucose sensor by the on-body sensor electronics after the glucose sensor is implanted in the host, wherein the sensor data is representative of a glucose concentration in the host; and calibrating, using a processor operably coupled to the on-body sensor electronics, the sensor data received from the glucose sensor based at least in part on sensitivity information.
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22. A system for calibrating signals received from an implanted glucose sensor, the system comprising:
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a glucose sensor configured for transcutaneous implantation in a host, the glucose sensor comprising a membrane system and configured to provide sensor data representative of a glucose concentration in the host after implantation; sensor electronics configured for on-body attachment to the host and configured to be operably coupled to the glucose sensor; a processor operably coupled to the sensor electronics; memory operably coupled to the processor; and wherein the processor is configured to calibrate the glucose sensor.
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Specification