Safeguarding techniques for a closed-loop insulin infusion system

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United States of America Patent

PATENT NO 9623179
SERIAL NO

13966109

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Abstract

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Processor-implemented methods of controlling an insulin infusion device for a user are provided here. A first method obtains and analyzes calibration factors (and corresponding timestamp data) for a continuous glucose sensor, and regulates entry into a closed-loop operating mode of the infusion device based on the calibration factors and timestamp data. A second method obtains a most recent sensor glucose value and a target glucose setpoint value for the user at the outset of the closed-loop mode. The second method adjusts the closed-loop insulin infusion rate over time, in response to the sensor glucose value and the setpoint value. A third method calculates an upper insulin limit that applies to the insulin infusion rate during the closed-loop mode. The insulin limit is calculated based on a fasting blood glucose value of the user, a total daily insulin value of the user, and fasting insulin delivery data for the user.

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Patent Owner(s)

  • MEDTRONIC MINIMED, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Grosman, Benyamin North Hollywood, US 93 1063
Keenan, Desmond Barry Hollywood, US 38 2546
Mastrototaro, John J Los Angeles, US 110 49041
Parikh, Neha J West Hills, US 63 673
Roy, Anirban Calabasas, US 194 2746

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