Systems and methods for processing analyte sensor data
First Claim
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1. A method for processing sensor data of a continuous analyte sensor implanted within a body, wherein the continuous analyte sensor measures glucose levels, and the measurements are processed via sensor electronics, comprising:
- initializing the sensor, the sensor in electrical communication with the sensor electronics configured to receive and process sensor data by the sensor;
acquiring sensor data, using the sensor, to measure an analyte level in a body fluid over a first interval based on a first elapsed time since the sensor was implanted;
adjusting the acquired sensor data by applying, using the sensor electronics, a first set of time-dependent algorithmic functions to the sensor data associated with the first interval, wherein the first set of time-dependent algorithmic functions comprise a first boundary of acceptability, wherein the first boundary comprises a first drift rate of the sensitivity over time, wherein the first boundary comprises a first drift of the baseline over time;
acquiring further sensor data, using the sensor, to measure the analyte level in the body fluid over a second interval based on a second elapsed time since the sensor was implanted and after the first interval;
adjusting the acquired further sensor data by applying, by the sensor electronics, a second set of time-dependent algorithmic functions to the sensor data associated with the second interval, wherein the second set of time-dependent algorithmic functions comprise a second boundary of acceptability, wherein the second boundary comprises a second drift rate of the sensitivity over time, wherein the second boundary comprises a second drift of the baseline over time, thereby adapting the system to compensate for sensor drift of the sensor.
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Abstract
Systems and methods for applying time-dependent algorithmic compensation functions to data output from a continuous analyte sensor. Some embodiments determine a time since sensor implantation and/or whether a newly initialized sensor has been used previously.
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Citations
42 Claims
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1. A method for processing sensor data of a continuous analyte sensor implanted within a body, wherein the continuous analyte sensor measures glucose levels, and the measurements are processed via sensor electronics, comprising:
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initializing the sensor, the sensor in electrical communication with the sensor electronics configured to receive and process sensor data by the sensor; acquiring sensor data, using the sensor, to measure an analyte level in a body fluid over a first interval based on a first elapsed time since the sensor was implanted; adjusting the acquired sensor data by applying, using the sensor electronics, a first set of time-dependent algorithmic functions to the sensor data associated with the first interval, wherein the first set of time-dependent algorithmic functions comprise a first boundary of acceptability, wherein the first boundary comprises a first drift rate of the sensitivity over time, wherein the first boundary comprises a first drift of the baseline over time; acquiring further sensor data, using the sensor, to measure the analyte level in the body fluid over a second interval based on a second elapsed time since the sensor was implanted and after the first interval; adjusting the acquired further sensor data by applying, by the sensor electronics, a second set of time-dependent algorithmic functions to the sensor data associated with the second interval, wherein the second set of time-dependent algorithmic functions comprise a second boundary of acceptability, wherein the second boundary comprises a second drift rate of the sensitivity over time, wherein the second boundary comprises a second drift of the baseline over time, thereby adapting the system to compensate for sensor drift of the sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A continuous analyte monitoring system for processing sensor data of a continuous analyte sensor implanted within a body, wherein the analyte sensor measures glucose levels, and the measurements are processed via sensor electronics, comprising:
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a sensor configured to be implanted within a body and acquire sensor data associated with analyte levels of a body fluid; and the sensor electronics configured to receive and process the sensor data obtained by the sensor, the sensor electronics including a processor configured to initialize the sensor, process the sensor data acquired using the sensor to measure an analyte level in the body fluid over a first interval based on a first elapsed time since the sensor was implanted, adjust the acquired sensor data by applying a first set of time-dependent algorithmic functions to the sensor data associated with the first interval, wherein the first set of time-dependent algorithmic functions comprise a first boundary of acceptability, wherein the first boundary comprises a first drift rate of the sensitivity over time, wherein the first boundary comprises a first drift of the baseline over time, process further sensor data acquired using the sensor to measure the analyte level in the body fluid over a second interval based on a second elapsed time since the sensor was implanted and after the first interval, adjust the acquired further sensor data by applying second set of time-dependent algorithmic functions to the sensor data associated with the second interval, wherein the second set of time-dependent algorithmic functions comprise a second boundary of acceptability, wherein the second boundary comprises a second drift rate of the sensitivity over time, wherein the second boundary comprises a second drift of the baseline over time, thereby adapting the system to compensate for sensor drift of the sensor. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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Specification