REGULATING ENTRY INTO A CLOSED-LOOP OPERATING MODE OF AN INSULIN INFUSION SYSTEM
First Claim
1. An electronic device comprising:
- a processor architecture comprising at least one processor device; and
at least one memory element associated with the processor architecture, the at least one memory element storing processor-executable instructions that, when executed by the processor architecture, perform a method of controlling an insulin infusion device for a user, the method comprising;
obtaining sensor calibration data for a continuous glucose sensor that generates a sensor variable indicative of blood glucose of the user;
identifying a most recent calibration factor from the sensor calibration data, the most recent calibration factor representing a first conversion value applicable to convert a first value of the sensor variable to a first blood glucose value;
identifying a prior calibration factor from the sensor calibration data, the prior calibration factor representing a second conversion value applicable to convert a second value of the sensor variable to a second blood glucose value, and the prior calibration factor corresponding to an earlier time relative to the most recent calibration factor; and
regulating entry into a closed-loop operating mode of the insulin infusion device, based on the most recent calibration factor and the prior calibration factor.
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Accused Products
Abstract
An electronic controller for an insulin infusion device includes at least one processor device and at least one memory element that cooperate to provide a processor-implemented closed-loop initiation module. The initiation module is operated to obtain a most recent calibration factor for a continuous glucose sensor, the most recent calibration factor representing a first conversion value applicable to convert a first sensor value to a first blood glucose value. The initiation module also obtains a prior calibration factor for the sensor, and calibration timestamp data for the most recent calibration factor and the prior calibration factor. The initiation module regulates entry into a closed-loop operating mode of the insulin infusion device, based on the most recent calibration factor, the prior calibration factor, and the calibration timestamp data.
87 Citations
29 Claims
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1. An electronic device comprising:
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a processor architecture comprising at least one processor device; and at least one memory element associated with the processor architecture, the at least one memory element storing processor-executable instructions that, when executed by the processor architecture, perform a method of controlling an insulin infusion device for a user, the method comprising; obtaining sensor calibration data for a continuous glucose sensor that generates a sensor variable indicative of blood glucose of the user; identifying a most recent calibration factor from the sensor calibration data, the most recent calibration factor representing a first conversion value applicable to convert a first value of the sensor variable to a first blood glucose value; identifying a prior calibration factor from the sensor calibration data, the prior calibration factor representing a second conversion value applicable to convert a second value of the sensor variable to a second blood glucose value, and the prior calibration factor corresponding to an earlier time relative to the most recent calibration factor; and regulating entry into a closed-loop operating mode of the insulin infusion device, based on the most recent calibration factor and the prior calibration factor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A tangible and non-transitory electronic storage medium having processor-executable instructions that, when executed by a processor architecture comprising at least one processor device, perform a method of controlling an insulin infusion device for a user, the method comprising:
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obtaining sensor calibration data for a continuous glucose sensor that generates a sensor variable indicative of blood glucose of the user; identifying a most recent calibration factor from the sensor calibration data, the most recent calibration factor representing a first conversion value applicable to convert a first value of the sensor variable to a first blood glucose value; identifying a prior calibration factor from the sensor calibration data, the prior calibration factor representing a second conversion value applicable to convert a second value of the sensor variable to a second blood glucose value, and the prior calibration factor corresponding to an earlier time relative to the most recent calibration factor; and regulating entry into a closed-loop operating mode of the insulin infusion device, based on the most recent calibration factor and the prior calibration factor. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25)
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26. An electronic controller for an insulin infusion device, the electronic controller comprising:
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a processor architecture comprising at least one processor device; and at least one memory element associated with the processor architecture, the at least one memory element storing processor-executable instructions that, when executed by the processor architecture, provide a closed-loop initiation module configured to; obtain a most recent calibration factor for a continuous glucose sensor that generates a sensor variable indicative of blood glucose of a user, the most recent calibration factor representing a first conversion value applicable to convert a first value of the sensor variable to a first blood glucose value; obtain a prior calibration factor for the continuous glucose sensor, the prior calibration factor representing a second conversion value applicable to convert a second value of the sensor variable to a second blood glucose value; obtain calibration timestamp data for the most recent calibration factor and the prior calibration factor; and regulate entry into a closed-loop operating mode of the insulin infusion device, based on the most recent calibration factor, the prior calibration factor, and the calibration timestamp data. - View Dependent Claims (27, 28, 29)
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Specification