SEMI-CLOSED LOOP INSULIN DELIVERY
First Claim
Patent Images
1. A method comprising:
- calculating an amount of insulin to be administered to a patient based, at least in part, on sensor measurements obtained from said patient;
initiating an alarm in response to said calculated amount of insulin; and
automatically initiating injection of at least a portion of said calculated amount in the absence of a response to said alarm within a time limit of said initiation of said alarm.
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Abstract
Subject matter disclosed herein relates to a semi-closed loop drug delivery system. In particular embodiments, an amount of insulin to be administered to a patient may be calculated based, at least in part, on one or more blood-glucose measurements obtained from said patient, and an alarm may be initiated in response to the calculated amount of insulin. At least a portion of the calculated amount of insulin may then be injected into the patient in the absence of a response to the alarm within a time limit.
138 Citations
42 Claims
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1. A method comprising:
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calculating an amount of insulin to be administered to a patient based, at least in part, on sensor measurements obtained from said patient; initiating an alarm in response to said calculated amount of insulin; and automatically initiating injection of at least a portion of said calculated amount in the absence of a response to said alarm within a time limit of said initiation of said alarm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A device comprising:
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at least one sensor to measure blood-glucose concentration of a patient; an alarm; one or more processors programmed with instructions to; calculate an amount of fluid to be administered to said patient based, at least in part, on sensor measurements obtained from said patient; initiate said alarm in response to said calculated amount of fluid; and automatically initiate injection of at least a portion of said calculated amount in the absence of a response to said alarm within a time limit of said initiation of said alarm; and an infusion device to deliver said amount of fluid to said patient - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An apparatus comprising:
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means for calculating an amount of insulin to be administered to a patient based, at least in part, on measurements obtained from said patient; means for initiating an alarm in response to said calculated amount of insulin; and means for automatically initiating injection of at least a portion of said calculated amount in the absence of a response to said alarm within a time limit of said initiation of said alarm. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28)
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29. An article comprising:
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a storage medium comprising machine-readable instructions stored thereon which, in response to being executed by a processor, enable said processor to; calculate an amount of insulin to be administered to a patient based, at least in part, on sensor measurements obtained from said patient; initiate activation of an alarm in response to said calculated amount of insulin; and automatically initiate injection of at least a portion of said calculated amount into said patient in the absence of a response to said alarm within a time limit of said initiation of said alarm. - View Dependent Claims (30, 31, 32)
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33. A method comprising:
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measuring a patient'"'"'s blood-glucose concentration based, at least in part, on measurements obtained at a sensor; calculating a correction bolus based, at least in part, on said measured blood-glucose concentration and said patient'"'"'s insulin correction factor. calculating a worst-case value of blood-glucose based, at least in part, on said measured blood-glucose concentration and a relative sensor error of said sensor; calculating a maximum allowable bolus based, at least in part, on said worst-case value of blood-glucose concentration and a safety target limit; and delivering less than said correction bolus to said patient if said correction bolus is less than said maximum allowable bolus. - View Dependent Claims (34)
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35. A device comprising:
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at least one sensor to measure blood-glucose concentration of a patient; one or more processors programmed with instructions to; calculate a correction bolus based, at least in part, on said measured blood-glucose concentration and said patient'"'"'s insulin correction factor. calculate a worst-case value of blood-glucose concentration based, at least in part, on said measured blood-glucose concentration and a relative sensor error of said sensor; and calculate a maximum allowable bolus based, at least in part, on said worst-case value of blood-glucose concentration and a safety target limit; and initiate delivery of less than said correction bolus to said patient if said correction bolus is less than said maximum allowable bolus. - View Dependent Claims (36)
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37. A method comprising:
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calculating an amount of insulin to be administered to a patient based, at least in part, on measurements obtained from said patient; automatically initiating injection of at least a portion of said calculated amount if said patient fails to manually inject insulin within a time limit if blood-glucose measurements surpass a threshold level. - View Dependent Claims (38, 39, 40, 41, 42)
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Specification