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US 2014/0235981 A1Published application
Closed Loop Control With Improved Alarm Functions
AssigneeAbbott Diabetes Care Inc.
InventorGary Alan Hayter
Life of this patent
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Abstract
Methods, system and devices for monitoring control parameters in a closed loop control operation including continuously monitoring glucose level and automatic administration of a medication, detecting a condition associated with hypoglycemia, determining whether a probability of the detected condition associated with hypoglycemia exceeding a threshold level, and outputting a notification based upon the determination are provided.
Claims20
A method, comprising:
- determining a predictive glucose response based on prior monitored glucose sensor data and one or more exogenous factors;
- detecting a condition associated with hypoglycemia including determining a level of uncertainty in a monitored glucose level based on a predicted or anticipated glucose level;
- determining a probability that the detected condition associated with hypoglycemia corresponds to a hypoglycemic condition including whether glucose sensor data indicates a persistent low glucose level;
- comparing the determined probability that the detected condition associated with hypoglycemia corresponds to the hypoglycemic condition, to a probability threshold level to confirm a presence of the hypoglycemic condition;
- modifying a first medication delivery rate adjustment frequency to a second medication delivery rate adjustment frequency based on a variation in the monitored glucose level;
- and
- determining periodically at the second medication delivery rate adjustment frequency whether to adjust a medication delivery rate.
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 a predictive glucose response based on prior monitored glucose sensor data and one or more exogenous factors, to detect a condition associated with hypoglycemia including determining a level of uncertainty in a monitored glucose level based on a predicted or anticipated glucose level, to determine a probability that the detected condition associated with hypoglycemia corresponds to a hypoglycemic condition including whether glucose sensor data indicates a persistent low glucose level, to compare the determined probability that the detected condition associated with hypoglycemia corresponds to the hypoglycemic condition, to a probability threshold level to confirm a presence of the hypoglycemic condition, to modify a first medication delivery rate adjustment frequency to a second medication delivery rate adjustment frequency based on a variation in the monitored glucose level, and to determine periodically at the second medication delivery rate adjustment frequency whether to adjust a medication delivery rate.
Dependencies are inferred from the claim text.