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US 8,622,988 B2Granted
Variable rate closed loop control and methods
AssigneeAbbott Diabetes Care Inc.
InventorGary Hayter
Life of this patent
Estimating the term…
Abstract
Methods, system and devices for monitoring a closed loop control operation including signal levels received from an analyte sensor at a predetermined frequency, determining a variation in the monitored analyte level, determining a medication delivery rate adjustment frequency to deliver a medication based on the determined variation in the monitored analyte level, and adjusting the closed loop control operation to modify the medication delivery rate frequency are provided.
Claims28
A method, comprising:
- determining periodically at a first medication delivery rate adjustment frequency whether to adjust a medication delivery rate;
- monitoring a closed loop control operation including an analyte level associated with signal levels received from an analyte sensor at a predetermined frequency;
- determining a variation in the monitored analyte level;
- modifying the first medication delivery rate adjustment frequency to a second medication delivery rate adjustment frequency based on the determined variation in the monitored analyte level;
- and
- determining periodically at the second medication delivery rate adjustment frequency whether to adjust the medication delivery rate;
- wherein the modification to the first medication delivery rate adjustment frequency is performed dynamically based in part on the determined variation in the monitored analyte level.
4 more elements
A device, comprising:
- one or more processors;
- and
- a memory operatively coupled to the one or more processors, the memory for storing instructions which, when executed by the one or more processors, causes the one or more processors to determine periodically at a first medication delivery rate adjustment frequency whether to adjust a medication delivery rate, monitor a closed loop control operation including an analyte level associated with signal levels received from an analyte sensor at a predetermined frequency, determine a variation in the monitored analyte level, modify the first medication delivery rate adjustment frequency to a second medication delivery rate adjustment frequency based on the determined variation in the monitored analyte level, and determine periodically at the second medication delivery rate adjustment frequency whether to adjust the medication delivery rate, wherein the memory for storing instructions which, when executed by the one or more processors, causes the one or more processors to dynamically perform the modification to the first medication delivery rate adjustment frequency based in part on the determined variation in the monitored analyte level.
Dependencies are inferred from the claim text.