Safeguarding measures for a closed-loop insulin infusion system
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United States of America Patent
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Sep 1, 2020
Grant Date -
May 4, 2017
app pub date -
Nov 17, 2016
filing date -
Aug 30, 2012
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Abstract
Processor-implemented methods of controlling an insulin infusion device for a user are provided here. A first method obtains a current insulin on board (IOB) value that estimates active insulin in the user, and compensates a calculated insulin infusion rate in response to the obtained IOB value. A second method supervises the operation of a glucose sensor by obtaining and processing insulin-delivered data and glucose sensor data for the user. An alert is generated if the second method determines that a current glucose sensor value has deviated from a predicted sensor glucose value by at least a threshold amount.
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