Operating an infusion pump system
First Claim
Patent Images
1. A method of operating a portable insulin infusion pump system, comprising:
- while operating an infusion pump system to dispense insulin according to a closed-loop delivery mode, detecting a trigger event to initiate a user-selected manual bolus dosage;
temporarily interrupting the closed-loop delivery mode by dispensing from the infusion pump system the user-selected manual bolus dosage, wherein a calculated dosage amount of the user-selected manual bolus dosage is calculated by the infusion pump system based upon both user input and an amount of insulin dispensed during the closed-loop delivery mode over a time period immediately prior to said interrupting; and
automatically returning to the closed-loop delivery mode after dispensation of the user-selected manual bolus dosage;
wherein said amount of insulin dispensed during the closed-loop delivery mode over the time period comprises an effective-insulin-on-board amount calculated as follows;
Effective Insulin-on-Board=[Σ
(Dosagen*Duration Factor(t)n)]−
Estimated Basal Rate,where n is any positive whole number, and where Duration Factor(t)n, represents a factor discounting the dosage based on an amount of time (t) since its delivery;
wherein the Estimated Basal Rate is an estimate of a background insulin need of a user of the insulin pump system over the time period.
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Abstract
Some embodiments an infusion pump system can be configured to control dispensation of medicine according to a closed-loop delivery mode that is responsive to feedback information provided from a monitoring device, and the infusion pump system permits a user to interrupt the closed-loop delivery mode for purposes of dispensing a user-selected manual bolus dosage.
214 Citations
24 Claims
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1. A method of operating a portable insulin infusion pump system, comprising:
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while operating an infusion pump system to dispense insulin according to a closed-loop delivery mode, detecting a trigger event to initiate a user-selected manual bolus dosage; temporarily interrupting the closed-loop delivery mode by dispensing from the infusion pump system the user-selected manual bolus dosage, wherein a calculated dosage amount of the user-selected manual bolus dosage is calculated by the infusion pump system based upon both user input and an amount of insulin dispensed during the closed-loop delivery mode over a time period immediately prior to said interrupting; and automatically returning to the closed-loop delivery mode after dispensation of the user-selected manual bolus dosage; wherein said amount of insulin dispensed during the closed-loop delivery mode over the time period comprises an effective-insulin-on-board amount calculated as follows;
Effective Insulin-on-Board=[Σ
(Dosagen*Duration Factor(t)n)]−
Estimated Basal Rate,where n is any positive whole number, and where Duration Factor(t)n, represents a factor discounting the dosage based on an amount of time (t) since its delivery; wherein the Estimated Basal Rate is an estimate of a background insulin need of a user of the insulin pump system over the time period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A medical infusion pump system, comprising:
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a portable pump housing configured to receive medicine for dispensation to a user, the pump housing at least partially containing a pump drive system to dispense the medicine through a flow path to the user; and a controller that controls the pump drive system to dispense the medicine from the portable pump housing according to a closed-loop delivery mode in which the controller autonomously provides insulin dosages to the user in response to feedback information of a user'"'"'s blood glucose level, wherein the controller is configured to, in response to receiving input indicative of a user-prompted bolus dosage, temporarily interrupt the closed-loop delivery mode by dispensing from the infusion pump system the user-prompted bolus dosage, wherein a calculated dosage amount of the user-prompted bolus dosage is calculated by the infusion pump system based upon both user input and an amount of insulin dispensed during the closed-loop delivery mode over a time period prior to the user-prompted bolus dosage; wherein said amount of insulin dispensed during the closed-loop delivery mode over the time period comprises an effective-insulin-on-board amount calculated as follows;
Effective Insulin-on-Board=[Σ
(Dosagen*Duration Factor(t)n)]−
Estimated Basal Rate,where n is any positive whole number, and where Duration Factor(t)n, represents a factor discounting the dosage based on an amount of time (t) since its delivery; wherein the Estimated Basal Rate is an estimate of a background insulin need of a user of the insulin pump system over the time period. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method of operating a portable insulin infusion pump system, comprising:
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while operating an infusion pump system to dispense insulin according to a closed-loop delivery mode, detecting a trigger event to initiate a user-selected manual bolus dosage; determining, at the infusion pump system, that the bolus dosage is permissible based on an amount of the bolus dosage and an amount of insulin dispensed during the closed-loop delivery mode over a time period immediately prior to the trigger event; and initiating delivery of the permissible bolus dosage; wherein said amount of insulin dispensed during the closed-loop delivery mode over the time period comprises an Effective-Insulin-on-Board amount calculated as follows;
Effective Insulin-on-Board=[Σ
(Dosagen*Duration Factor(t)n)]−
Estimated Basal Rate,where n is any positive whole number, and where Duration Factor(t)n, represents a factor discounting the dosage based on an amount of time (t) since its delivery; wherein the Estimated Basal Rate is an estimate of a background insulin need of a user of the insulin pump system over the time period. - View Dependent Claims (18, 19, 20, 21, 22)
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23. A portable infusion pump system, comprising:
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a portable pump housing configured to receive medicine for dispensation to a user, the pump housing at least partially containing a pump drive system to dispense the medicine through a flow path to the user; control circuitry that controls the pump drive system to dispense the medicine from the portable pump housing according to a closed-loop delivery mode in which insulin is dispensed in response to feedback information of a user'"'"'s blood glucose characteristic; and a user interface in communication with the control circuitry and being configured to receive user input to interrupt said closed-loop delivery mode, wherein the control circuitry is configured to perform operations comprising; detecting, while the infusion pump system is in a powered on state, actuation of a user interface control of the user interface indicating a user'"'"'s request to initiate calculation of a suggested bolus dosage by the infusion pump system; in response to detecting the actuation of the user interface control indicating a user'"'"'s request to initiate calculation of a suggested bolus dosage, calculating a suggested bolus dosage; causing the user interface to present the suggested bolus dosage to the user of the infusion pump system; detecting user input received at the user interface indicating that the suggested bolus dosage should be administered as a user-selected manual bolus dosage; temporarily interrupting the closed-loop delivery mode by dispensing from the infusion pump system the user-selected manual bolus dosage;
automatically returning to the closed-loop delivery mode after dispensation of the user-selected manual bolus dosagewherein a calculated dosage amount of the user-selected manual bolus dosage is calculated by the infusion pump system based upon both user input and an amount of insulin dispensed during the closed-loop delivery mode over a time period prior to the user-prompted bolus dosage; wherein said amount of insulin dispensed during the closed-loop delivery mode over the time period comprises an effective-insulin-on-board amount calculated as follows;
Effective Insulin-on-Board=[Σ
(Dosagen*Duration Factor(t)n)]−
Estimated Basal Rate,where n is any positive whole number, and where Duration Factor(t)n, represents a factor discounting the dosage based on an amount of time (t) since its delivery; wherein the Estimated Basal Rate is an estimate of a background insulin need of a user of the insulin pump system over the time period. - View Dependent Claims (24)
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Specification