Additional calibration for analyte monitor
First Claim
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1. A method, comprising:
- determining by an analyte monitoring system a change in analyte value since a prior calibration;
determining by an analyte monitoring system a time elapsed since a prior calibration;
providing a threshold for the change in analyte value, wherein the threshold is a function of the time elapsed;
determining by the analyte monitoring system whether the threshold has been exceeded based on the change in analyte value and the time elapsed; and
in response to determining that the change in analyte value exceeds the threshold, providing by the analyte monitoring system an indication of that determination, or in response to determining that the change in analyte value does not exceed the threshold, providing no indication by the analyte monitoring system that the change in analyte value exceeds the threshold.
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Abstract
Embodiments provide a method and related systems that take into account the difference between a measured glucose value and the calibration level and the amount of elapsed time since the prior calibration. As one or both of these determined differences increases, the desirability of an additional calibration also increases. The methodology described herein thus analyzes the combination of change in glucose level as well as the time since the prior calibration. If the combination exceeds a predetermined value, the system recommends, but does not require, that the subject user perform an additional calibration.
19 Citations
22 Claims
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1. A method, comprising:
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determining by an analyte monitoring system a change in analyte value since a prior calibration; determining by an analyte monitoring system a time elapsed since a prior calibration; providing a threshold for the change in analyte value, wherein the threshold is a function of the time elapsed; determining by the analyte monitoring system whether the threshold has been exceeded based on the change in analyte value and the time elapsed; and in response to determining that the change in analyte value exceeds the threshold, providing by the analyte monitoring system an indication of that determination, or in response to determining that the change in analyte value does not exceed the threshold, providing no indication by the analyte monitoring system that the change in analyte value exceeds the threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An electronic monitoring unit comprising,
a telemetry component configured to receive signals representative of analyte values transmitted from an on-skin unit of an analyte monitoring system; - and
a processor configured to determine a change in analyte value since a prior calibration; determine a time elapsed since a prior calibration; provide a threshold for the change in analyte value, wherein the threshold is a function of the time elapsed; determine whether the threshold has been exceeded based on the change in analyte value and the time elapsed; and in response to determining that the change in analyte value exceeds the threshold, provide an indication of that determination, or in response to determining that the change in analyte value does not exceed the threshold, providing no indication by the analyte monitoring system that the change in analyte value exceeds the threshold. - View Dependent Claims (11, 12, 13, 14, 15)
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16. An analyte monitoring system comprising:
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an on-skin unit coupled to at least one analyte sensor; an electronic monitoring unit comprising, a telemetry component configured to receive signals measured by the analyte sensor and transmitted from the on-skin unit; and a processor configured to determine a change in analyte value since a prior calibration; determine a time elapsed since a prior calibration; provide a threshold for the change in analyte value, wherein the threshold is a function of the time elapsed; determine whether the threshold has been exceeded based on the change in analyte value and the time elapsed; and in response to determining that the change in analyte value exceeds the threshold, provide an indication of that determination, or in response to determining that the change in analyte value does not exceed the threshold, providing no indication by the analyte monitoring system that the change in analyte value exceeds the threshold. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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Specification