Method and system for determining analyte levels
First Claim
1. A method implemented using one or more processors, comprising:
- determining a present predicted analyte level estimate based at least in part on a medication infusion rate and a past predicted analyte level estimate;
determining a present corrected analyte level estimate based at least in part on the determined present predicted analyte level estimate and a received present monitored analyte measurement data; and
filtering, using a rate variance filter, one or more of the medication infusion rate or the received present monitored analyte measurement data;
wherein when the medication infusion rate exceeds a predetermined threshold level, adjusting the rate variance filter from a predetermined setting to a modified setting to be responsive to changes in the present monitored analyte measurement data after a predetermined time period lapses.
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Abstract
Methods and apparatus for analyte level estimation are provided for filtering measurement data. In an embodiment, a present predicted analyte level estimate is determined. A present corrected analyte level estimate is determined based at least in part on the determined present predicted analyte level estimate and a received present monitored analyte measurement data. One or more of the medication infusion rate or the received present monitored analyte measurement data are filtered using a rate variance filter, wherein when the medication infusion rate exceeds a predetermined threshold level, the rate variance filter is adjusted from a predetermined setting to a modified setting to be responsive to changes in the present monitored analyte measurement data after a predetermined time period lapses.
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Citations
20 Claims
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1. A method implemented using one or more processors, comprising:
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determining a present predicted analyte level estimate based at least in part on a medication infusion rate and a past predicted analyte level estimate; determining a present corrected analyte level estimate based at least in part on the determined present predicted analyte level estimate and a received present monitored analyte measurement data; and filtering, using a rate variance filter, one or more of the medication infusion rate or the received present monitored analyte measurement data; wherein when the medication infusion rate exceeds a predetermined threshold level, adjusting the rate variance filter from a predetermined setting to a modified setting to be responsive to changes in the present monitored analyte measurement data after a predetermined time period lapses. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An apparatus, comprising:
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one or more processing units; and a memory operatively coupled to the one or more processing units, the memory for storing instructions which, when executed by the one or more processing units, causes the one or more processing units to determine a present predicted analyte level estimate based at least in part on a medication infusion rate and a past predicted analyte level estimate, to determine a present corrected analyte level estimate based at least in part on the determined present predicted analyte level estimate and a received present monitored analyte measurement data, and to filter, using a rate variance filter, one or more of the medication infusion rate or the received present monitored analyte measurement data, wherein when the medication infusion rate exceeds a predetermined threshold level, the one or more processing units are configured to adjust the rate variance filter from a predetermined setting to a modified setting to be responsive to changes in the present monitored analyte measurement data after a first predetermined time period lapses. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. A method implemented using one or more processors, comprising:
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determining a rate of change of a monitored analyte level; anticipating a change in a direction of the rate of change of the monitored analyte level based at least in part on a change in characteristic information of a medication delivery device including one or more of a medication delivery rate, a medication delivery amount, or a medication delivery time period; evaluating received analyte related signals based on the anticipated change in the direction of the rate of change of the monitored analyte level; determining an estimated monitored analyte level based at least in part on the received analyte related signals; and filtering, using a rate variance filter, the received analyte related signals based on the determined rate of change of the monitored analyte level to generate filtered analyte related signals; wherein when the change in the characteristic information of the medication delivery device exceeds a predetermined threshold level, adjusting the rate variance filter from a predetermined setting to a modified setting to be responsive to changes in the monitored analyte level after a first predetermined time period lapses. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification