System and methods for processing analyte sensor data
First Claim
1. A method for calibrating a substantially continuous analyte sensor, the method comprising:
- receiving, by a communication module, a data stream comprising one or more sensor data points from a substantially continuous analyte sensor;
receiving, by the communication module, reference data comprising one or more reference data points from a reference analyte monitor;
forming, by a processor module, at least one matched data pair by matching the one or more reference data points to the one or more sensor data points;
forming, by the processor module, a calibration data set using the one or more sensor data points and the one or more reference points using the at least one matched data pair;
determining, by the processor module, a level of confidence based on data that forms the calibration data set by measuring an association of the calibration data set to a curve using a statistical analysis; and
providing one of a plurality of different display modes on a display screen based on the level of confidence.
2 Assignments
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.
-
Citations
38 Claims
-
1. A method for calibrating a substantially continuous analyte sensor, the method comprising:
-
receiving, by a communication module, a data stream comprising one or more sensor data points from a substantially continuous analyte sensor; receiving, by the communication module, reference data comprising one or more reference data points from a reference analyte monitor; forming, by a processor module, at least one matched data pair by matching the one or more reference data points to the one or more sensor data points; forming, by the processor module, a calibration data set using the one or more sensor data points and the one or more reference points using the at least one matched data pair; determining, by the processor module, a level of confidence based on data that forms the calibration data set by measuring an association of the calibration data set to a curve using a statistical analysis; and providing one of a plurality of different display modes on a display screen based on the level of confidence. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A system for calibrating a substantially continuous analyte sensor, the system comprising:
-
a communication module configured to receive a data stream comprising one or more sensor data points from a substantially continuous analyte sensor, and to receive reference data comprising one or more reference data points from a reference analyte monitor; and a processor module configured to form a calibration data set using the one or more sensor data points and the one or more reference points, to determine a level of confidence based on data that forms the calibration data set, to initiate one of a plurality of different display modes on a display screen based on the level of confidence, to form a one or more matched data pairs based on the sensor data points and the reference data points, wherein the calibration data set is based on the one or more matched data pairs, and to determine the level of confidence by measuring an association of the calibration data set to a curve using a statistical analysis. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
-
-
25. A method for calibrating a substantially continuous analyte sensor, the method comprising:
-
receiving in substantially real-time, by a communication module, a data stream comprising one or more sensor data points from a substantially continuous analyte sensor; calibrating in substantially real-time, by a processor module, the substantially continuous analyte sensor; determining in substantially real-time, by the processor module, a level of confidence based on the calibration; and displaying in substantially real-time at least one of error bars or ±
values on a display screen based on the level of confidence.
-
-
26. A method for calibrating a substantially continuous analyte sensor, the method comprising:
-
receiving in substantially real-time, by a communication module, a data stream comprising one or more sensor data points from a substantially continuous analyte sensor; calibrating in substantially real-time, by a processor module, the substantially continuous analyte sensor; determining in substantially real-time, by the processor module, a level of confidence based on the calibration; and initiating in substantially real-time a normal display mode based on the level of confidence.
-
-
27. A method for calibrating a substantially continuous analyte sensor, the method comprising:
-
receiving in substantially real-time, by a communication module, a data stream comprising one or more sensor data points from a substantially continuous analyte sensor; calibrating in substantially real-time, by a processor module, the substantially continuous analyte sensor; determining in substantially real-time, by the processor module, a level of confidence based on the calibration; and initiating in substantially real-time an initial fail-safe display mode based on the level of confidence. - View Dependent Claims (28, 29, 30, 31)
-
-
32. A system for calibrating a substantially continuous analyte sensor, the system comprising:
-
a communication module configured to receive a data stream in substantially real-time comprising one or more sensor data points from a substantially continuous analyte sensor; and a processor module configured to calibrate the substantially continuous analyte sensor in substantially real-time, to determine a level of confidence in substantially real-time based on the calibration, and to provide at least one of error bars or ±
values on a display screen in substantially real-time based on the level of confidence.
-
-
33. A system for calibrating a substantially continuous analyte sensor, the system comprising:
-
a communication module configured to receive a data stream in substantially real-time comprising one or more sensor data points from a substantially continuous analyte sensor; and a processor module configured to calibrate the substantially continuous analyte sensor in substantially real-time, to determine a level of confidence in substantially real-time based on the calibration, and to initiate a normal display mode in substantially real-time based on the level of confidence.
-
-
34. A system for calibrating a substantially continuous analyte sensor, the system comprising:
-
a communication module configured to receive a data stream in substantially real-time comprising one or more sensor data points from a substantially continuous analyte sensor; and a processor module configured to calibrate the substantially continuous analyte sensor in substantially real-time, to determine a level of confidence in substantially real-time based on the calibration, and to initiate an initial fail-safe display mode in substantially real-time based on the level of confidence. - View Dependent Claims (35, 36, 37, 38)
-
Specification