System and methods for processing analyte sensor data
First Claim
1. A method for processing reference glucose values, the method comprising:
- receiving sensor data from a continuous glucose sensor;
receiving reference data from a reference glucose monitor, the reference data corresponding in time to the sensor data;
determining, using a processor module, an acceptability of the reference data or the sensor data, the determination comprising considering a deviation between the reference data and the sensor data using an error grid analysis for determining a risk of the deviation; and
processing, using the processor module, the reference data or the sensor data responsive to the error grid analysis.
1 Assignment
0 Petitions
Accused Products
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.
531 Citations
24 Claims
-
1. A method for processing reference glucose values, the method comprising:
-
receiving sensor data from a continuous glucose sensor; receiving reference data from a reference glucose monitor, the reference data corresponding in time to the sensor data; determining, using a processor module, an acceptability of the reference data or the sensor data, the determination comprising considering a deviation between the reference data and the sensor data using an error grid analysis for determining a risk of the deviation; and processing, using the processor module, the reference data or the sensor data responsive to the error grid analysis. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method for processing reference glucose values, the method comprising:
-
receiving sensor data from a continuous glucose sensor; receiving reference data from a reference glucose monitor, the reference data corresponding in time to the sensor data; forming, using a processor module, a matched data pair by matching the at least one sensor data point of the sensor data and at least one time corresponding reference data point of the reference data, wherein the at least one sensor data point and the at least one reference data point of the matched data pair are in units of blood glucose concentration; determining, using the processor module, an acceptability of the reference data, the determination comprising considering a deviation between the reference data and the sensor data by comparing the sensor data to a range of acceptable values, wherein the range of acceptable values depends upon a glucose concentration of a host as indicated by the reference data; and processing, using the processor module, the reference data responsive to the acceptability determination. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. A system for processing reference glucose values, the system comprising:
-
a sensor data module configured to receive sensor data from a continuous glucose sensor; a receiving module configured to receive reference data from a reference glucose monitor; and a processor module configured to; determine an acceptability of the reference data or the sensor data, the determination comprising considering a deviation between the reference data and the sensor data using an error rid analysis for determining a risk of the deviation, and process the reference data or the sensor data responsive to the error analysis. - View Dependent Claims (16, 17, 18, 19)
-
-
20. A system for processing reference glucose values, the system comprising:
-
a sensor data module configured to receive sensor data from a continuous glucose sensor; a receiving module configured to receive reference data from a reference glucose monitor; and a processor module configured to; determine an acceptability of the reference data, the determination comprising considering a deviation between the reference data and the sensor data by comparing the sensor data to a range of acceptable values, wherein the range of acceptable deviation values varies depending upon a glucose concentration of a host as indicated by the reference data, and process the reference data responsive to the acceptability determination, wherein the processor module is further configured to form a matched data pair by matching the at least one sensor data point of the sensor data and the at least one time corresponding reference data point of the reference data, wherein the at least one sensor data point and the at least one reference data point of the matched data pair are in units of blood glucose concentration. - View Dependent Claims (21, 22, 23, 24)
-
Specification