INTEGRATED INSULIN DELIVERY SYSTEM HAVING DELIVERY SAFETY FEATURES
1 Assignment
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Accused Products
Abstract
An integrated insulin delivery system having safety features for controlling medication delivery includes automatic resumption of basal rate after a particular event, such as termination of a bolus, expiration of a time period, delayed resumption after the bolus has terminated, IOB comparison, and others. Other safety features include overriding a delivery control that may result in hypoglycemia, terminating an extended bolus or temporary basal rate in view of a glucose signal indicating imminent carbohydrate deficiency, and controlling the delivery rate to take an asymmetrical bias range of a glucose sensor into account to avoid hypoglycemia.
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Citations
17 Claims
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1-4. -4. (canceled)
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5. A system for the delivery of insulin to a patient, the system comprising:
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a continuous glucose sensor configured to provide a glucose level signal representative of sensed glucose; an insulin delivery device configured to deliver insulin in response to delivery control signals at a basal rate and as a bolus; and a controller programmed to receive the sensor glucose level signal and to provide a delivery control signal to an insulin delivery device to suspend a basal delivery rate during the provision of a bolus delivery and to automatically resume a preprogrammed basal delivery rate after a selected event. - View Dependent Claims (6, 7, 8)
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9. A system for the delivery of insulin to a patient, the system comprising:
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a continuous glucose sensor configured to provide a glucose level signal representative of sensed glucose; an insulin delivery device configured to deliver insulin in response to delivery control signals at a basal rate and as a bolus; and a controller programmed to receive the sensor glucose level signal and to provide a delivery control signal to the insulin delivery device according to a model, the model including a monitor on the lower level of insulin over the course of time such that if the delivery control signal reduces the insulin delivery below a threshold or terminates insulin delivery, the processor model programming of the processor results in an intervention in the delivery of insulin by the pump to avoid hypoglycemia. - View Dependent Claims (10, 11)
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12. A system for the delivery of insulin to a patient, the system comprising:
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a continuous glucose sensor configured to provide a glucose level signal representative of sensed glucose; an insulin delivery device configured to deliver insulin to a patient in response to delivery control signals at a basal rate and as a bolus; and a controller programmed to receive the sensor glucose level signal and to provide a delivery control signal to the insulin delivery device to deliver insulin in a manner that accounts for an asymmetrical bias range of the glucose sensor such that inaccuracy in the sensor may be tolerated with limited hyperglycemia while avoiding hypoglycemia.
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13. A system for the delivery of insulin to a patient, the system comprising:
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a continuous glucose monitor configured to provide a glucose level signal representative of sensed glucose; an insulin delivery device configured to deliver insulin to a patient in response to delivery control signals; and a controller programmed to provide control signals to the delivery device to result in a basal rate of delivery and bolus delivery, the controller also programmed to receive the glucose level signal and to indicate recommended changes to the delivery of insulin and/or alter the delivery of insulin as a function of the glucose level signals. - View Dependent Claims (14, 15, 16, 17)
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Specification