CALIBRATION FACTOR ADJUSTMENTS FOR INFUSION DEVICES AND RELATED METHODS AND SYSTEMS
First Claim
1. A method of operating an infusion device operable to deliver fluid to a user, the fluid influencing a physiological condition of the user, the method comprising:
- obtaining one or more uncalibrated measurements indicative of the physiological condition;
obtaining one or more reference measurements of the physiological condition, each respective reference measurement of the one or more reference measurements corresponding to a respective uncalibrated measurement of the one or more uncalibrated measurements;
determining a raw calibration factor based on a relationship between the one or more uncalibrated measurements and the one or more reference measurements corresponding to the respective uncalibrated measurements of the one or more uncalibrated measurements; and
determining an adjusted calibration factor based at least in part on an expected calibration factor and the raw calibration factor, wherein operation of the infusion device to deliver the fluid is influenced by the adjusted calibration factor.
1 Assignment
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Accused Products
Abstract
Infusion systems, infusion devices, and related operating methods are provided. An exemplary method of operating an infusion device capable of delivering fluid to a user involves obtaining one or more uncalibrated measurements indicative of the physiological condition, obtaining one or more reference measurements of the physiological condition, determining a raw calibration factor based on a relationship between the one or more uncalibrated measurements and the one or more reference measurements corresponding to the respective uncalibrated measurements of the one or more uncalibrated measurements, and determining an adjusted calibration factor based at least in part on an expected calibration factor and the raw calibration factor, wherein operation of the infusion device to deliver the fluid is influenced by the adjusted calibration factor.
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Citations
20 Claims
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1. A method of operating an infusion device operable to deliver fluid to a user, the fluid influencing a physiological condition of the user, the method comprising:
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obtaining one or more uncalibrated measurements indicative of the physiological condition; obtaining one or more reference measurements of the physiological condition, each respective reference measurement of the one or more reference measurements corresponding to a respective uncalibrated measurement of the one or more uncalibrated measurements; determining a raw calibration factor based on a relationship between the one or more uncalibrated measurements and the one or more reference measurements corresponding to the respective uncalibrated measurements of the one or more uncalibrated measurements; and determining an adjusted calibration factor based at least in part on an expected calibration factor and the raw calibration factor, wherein operation of the infusion device to deliver the fluid is influenced by the adjusted calibration factor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An infusion system comprising:
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a sensing arrangement including a sensing element to provide output signals influenced by a physiological condition in a body of a user, the sensing arrangement determining uncalibrated measurements of the physiological condition based at least in part on the output signals; and an infusion device comprising; a motor operable to deliver fluid to the body of the user, the fluid influencing the physiological condition; and a control system to determine a delivery command for operating the motor based at least in part on a first uncalibrated measurement of the uncalibrated measurements and a calibration factor for converting the uncalibrated measurements, wherein; the calibration factor is determined based at least in part on an expected calibration factor and a raw calibration factor calculated based on one or more reference measurements for the physiological condition and one or more of the uncalibrated measurements; and each of the one or more of the uncalibrated measurements is paired with a respective reference measurement of the one or more reference measurements. - View Dependent Claims (16, 17, 18, 19)
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20. A device comprising:
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a sensing element to provide one or more signals influenced by a physiological condition of a user; and a control module coupled to the sensing element to; determine one or more uncalibrated measurements indicative of the physiological condition based on the one or more signals; obtain one or more reference measurements of the physiological condition, each respective reference measurement of the one or more reference measurements corresponding to a respective uncalibrated measurement of the one or more uncalibrated measurements; determine a raw calibration factor based on a relationship between the one or more uncalibrated measurements and the one or more reference measurements corresponding to the respective uncalibrated measurements of the one or more uncalibrated measurements; and determine an adjusted calibration factor based at least in part on an expected calibration factor and the raw calibration factor, wherein delivery of a fluid influencing the physiological condition is influenced by the adjusted calibration factor.
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Specification