System and methods for processing analyte sensor data
First Claim
1. A computer system for processing sensor data from a continuous glucose sensor, the computer system comprising:
- a sensor data receiving module configured to receive sensor data from the continuous glucose sensor via a receiver, wherein the sensor data comprises one or more sensor data points;
a reference data receiving module configured to receive reference data from a reference glucose monitor, wherein the reference data comprises one or more reference data points;
a data matching module configured to form one or more matched data pairs by matching at least one reference data point to at least one substantially time corresponding sensor data point; and
a stability determination module configured to determine a stability of the continuous glucose sensor, at least in part by evaluating 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
36 Claims
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1. A computer system for processing sensor data from a continuous glucose sensor, the computer system comprising:
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a sensor data receiving module configured to receive sensor data from the continuous glucose sensor via a receiver, wherein the sensor data comprises one or more sensor data points; a reference data receiving module configured to receive reference data from a reference glucose monitor, wherein the reference data comprises one or more reference data points; a data matching module configured to form one or more matched data pairs by matching at least one reference data point to at least one substantially time corresponding sensor data point; and a stability determination module configured to determine a stability of the continuous glucose sensor, at least in part by evaluating a level of oxygen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for processing sensor data from a continuous glucose sensor, the method comprising:
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receiving sensor data from a continuous glucose sensor, wherein the sensor data comprises one or more sensor data points; forming one or more matched data pairs by matching reference data to substantially time corresponding sensor data; determining using processing circuitry a predetermined level of stability of the continuous glucose sensor at least in part by evaluating a level of oxygen; and providing output reflective of the sensor data after the predetermined level of stability has been determined. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A system for processing sensor data from a continuous glucose sensor, comprising:
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a sensor data module operably linked to a continuous glucose sensor and configured to receive sensor data from the continuous glucose sensor; and a processor module associated with the sensor data module and programmed to match one or more reference data points with one or more substantially time corresponding 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 continuous glucose sensor at least in part by evaluating a level of oxygen, and wherein the processor module is further programmed to output information reflective of the sensor data after a predetermined level of stability has been determined. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A continuous glucose sensor system, comprising:
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a continuous glucose sensor configured to continuously measure a concentration of glucose in a host; and a computer system configured to receive sensor data associated with the concentration of glucose in the host and configured to process the sensor data to provide displayable sensor data, wherein the computer system is configured to output the sensor data after a predetermined level of stability of the continuous glucose sensor has been determined at least in part by evaluating a level of oxygen. - View Dependent Claims (34, 35, 36)
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Specification