METHOD AND SYSTEM FOR PROCESSING AND ANALYZING ANALYTE SENSOR SIGNALS
First Claim
1. A method for processing and correction of artifacts in glucose sensor signal streams in near-real time, the method comprising:
- at a glucose sensor in communication with interstitial fluid of a user, receiving a signal stream associated with a glucose parameter of the user across a set of time points;
at a computing system in communication with the glucose sensor, detecting an artifact within the signal stream in near-real time;
at the computing system, performing a characterization of the artifact as one of a short duration artifact and a long duration artifact, the short duration artifact associated with physical disturbance of the glucose sensor, and the long duration artifact associated with at least one of
1) sensor equilibration upon application of the analyte sensor to the user and
2) sensor drift;
at the computing system, performing a correction operation on the artifact according to the characterization in near-real time, thereby producing a dataset indicative of values of the glucose parameter across the set of time points; and
performing a calibration operation on values of the glucose parameter, based upon a calibration event unassociated with a blood-sampled measurement of the user, thereby generating a set of calibrated values of the glucose parameter.
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Abstract
A method and system for near-real time and continuous analyte monitoring, the method including: receiving a signal stream associated with an analyte parameter of the user across a set of time points; generating a dataset indicative of values of the analyte parameter across the set of time points, upon processing of the signal stream in near-real time; performing a calibration operation on values of the analyte parameter, based upon a calibration event, thereby generating a set of calibrated values of the analyte parameter; at the computing system, identifying a set of activity events of the user, from a supplemental dataset, during a time window corresponding to the set of time points; generating an analysis indicative of an association between at least one of the set of activity events and the set of calibrated values of the analyte parameter; and rendering information derived from the analysis to the user.
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Citations
20 Claims
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1. A method for processing and correction of artifacts in glucose sensor signal streams in near-real time, the method comprising:
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at a glucose sensor in communication with interstitial fluid of a user, receiving a signal stream associated with a glucose parameter of the user across a set of time points; at a computing system in communication with the glucose sensor, detecting an artifact within the signal stream in near-real time; at the computing system, performing a characterization of the artifact as one of a short duration artifact and a long duration artifact, the short duration artifact associated with physical disturbance of the glucose sensor, and the long duration artifact associated with at least one of
1) sensor equilibration upon application of the analyte sensor to the user and
2) sensor drift;at the computing system, performing a correction operation on the artifact according to the characterization in near-real time, thereby producing a dataset indicative of values of the glucose parameter across the set of time points; and performing a calibration operation on values of the glucose parameter, based upon a calibration event unassociated with a blood-sampled measurement of the user, thereby generating a set of calibrated values of the glucose parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for processing and correction of artifacts in analyte sensor signal streams in near-real time, the method comprising:
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at an analyte sensor in communication with body fluid of a user, receiving a signal stream associated with an analyte parameter of the user across a set of time points; at a computing system in communication with the analyte sensor, detecting an artifact within the signal stream in near-real time; at the computing system, performing a characterization of the artifact as one of a short duration artifact and a long duration artifact, the long duration artifact associated with at least one of
1) sensor equilibration upon application of the analyte sensor to the user and
2) sensor drift; andat the computing system, performing a correction operation on the artifact according to the characterization in near-real time, thereby producing a dataset indicative of values of the analyte parameter across the set of time points. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification