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Glucose sensor signal stability analysis

  • US 8,543,354 B2
  • Filed: 10/28/2010
  • Issued: 09/24/2013
  • Est. Priority Date: 06/23/2010
  • Status: Active Grant
First Claim
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1. A method comprising:

  • obtaining a series of samples of at least one sensor signal that is responsive to a blood glucose level of a patient;

    determining, based at least partly on the series of samples, at least one metric assessing an underlying trend of a change in responsiveness of the at least one sensor signal to the blood glucose level of the patient over time; and

    assessing a reliability of the at least one sensor signal to respond to the blood glucose level of the patient based at least partly on the at least one metric assessing the underlying trend,wherein said assessing further comprises;

    assessing that the reliability of the at least one sensor signal is in a first state responsive to a comparison of the at least one metric assessing the underlying trend with the a predetermined threshold;

    assessing that the reliability of the at least one sensor signal is in a second state responsive to a comparison of the at least one metric assessing the underlying trend with the first predetermined threshold and a second predetermined threshold; and

    assessing that the reliability of the at least one sensor signal is in a third state responsive to a comparison of the at least one metric assessing the underlying trend with the second predetermined threshold.

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