SYSTEM AND METHODS FOR PROCESSING ANALYTE SENSOR DATA
First Claim
1. A computer system for initializing a continuous glucose sensor, the computer system comprising:
- a sensor data receiving module that receives sensor data from the substantially continuous glucose sensor via a receiver, including one or more sensor data points;
a reference data receiving module that receives reference data from a reference glucose monitor, including one or more reference data points;
a data matching module that forms one or more matched data pairs by matching reference data to substantially time corresponding sensor data; and
a stability determination module that determines a stability of the continuous glucose sensor in real-time, wherein said stability determination module evaluates a level of oxygen.
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Abstract
Systems and methods for processing sensor analyte data, including initiating calibration, updating calibration, evaluating clinical acceptability of reference and sensor analyte data, and evaluating the quality of sensor calibration. During initial calibration, the analyte sensor data is evaluated over a period of time to determine stability of the sensor. The sensor may be calibrated using a calibration set of one or more matched sensor and reference analyte data pairs. The calibration may be updated after evaluating the calibration set for best calibration based on inclusion criteria with newly received reference analyte data. Fail-safe mechanisms are provided based on clinical acceptability of reference and analyte data and quality of sensor calibration. Algorithms provide for optimized prospective and retrospective analysis of estimated blood analyte data from an analyte sensor.
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Citations
29 Claims
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1. A computer system for initializing a continuous glucose sensor, the computer system comprising:
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a sensor data receiving module that receives sensor data from the substantially continuous glucose sensor via a receiver, including one or more sensor data points; a reference data receiving module that receives reference data from a reference glucose monitor, including one or more reference data points; a data matching module that forms one or more matched data pairs by matching reference data to substantially time corresponding sensor data; and
a stability determination module that determines a stability of the continuous glucose sensor in real-time, wherein said stability determination module evaluates a level of oxygen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for initializing a substantially continuous glucose sensor, the method comprising:
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receiving sensor data from a substantially continuous glucose sensor, including one or more sensor data points; forming one or more matched data pairs by matching reference data to substantially time corresponding sensor data; and providing output reflective of said sensor data after a predetermined level of stability has been determined, wherein determining a stability of the substantially continuous glucose sensor comprises evaluating a level of oxygen. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A system for initializing a continuous glucose sensor, comprising:
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a sensor data module operatively linked to an implantable continuous glucose sensor and configured to receive sensor data from said sensor; and a processor module associated with the sensor data module and programmed to match reference data points with time-matched sensor data points to form a calibration set comprising at least one matched data pair, wherein the processor module is programmed to evaluate a stability of the implantable continuous glucose sensor, and wherein the processor module is further programmed to output information reflective of said sensor data after a predetermined level of stability has been determined, wherein said processor module is programmed to evaluate a level of oxygen to determine the stability. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification