Infusion Pump System and Methods
First Claim
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1. A medical infusion pump system, comprising:
- a portable pump housing that receives insulin for dispensation to a user, the pump housing at least partially containing a pump drive system to dispense the insulin through a flow path to the user;
a controller that communicates with the pump drive system to dispense the insulin from the portable pump housing; and
a monitoring device that communicates glucose information to the controller, the glucose information being indicative of a blood glucose level of the user,wherein the controller is configured to predict a future blood glucose level of the user based at least in part upon a recent blood glucose level, a trend of blood glucose levels over time, and an insulin load of the user, and wherein the controller is configured to output an alarm in response to the predicted future blood glucose level being less than a lower threshold value or greater than a higher threshold value.
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Abstract
Some embodiments an infusion pump system can be configured to activate an alarm in response to a calculated prediction of the user'"'"'s future blood glucose levels. Optionally, the predictive calculation of the user'"'"'s future blood glucose levels can be based at least in part upon a recent blood glucose level, a trend of blood glucose levels over time, and an insulin load of the user.
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Citations
26 Claims
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1. A medical infusion pump system, comprising:
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a portable pump housing that receives insulin for dispensation to a user, the pump housing at least partially containing a pump drive system to dispense the insulin through a flow path to the user; a controller that communicates with the pump drive system to dispense the insulin from the portable pump housing; and a monitoring device that communicates glucose information to the controller, the glucose information being indicative of a blood glucose level of the user, wherein the controller is configured to predict a future blood glucose level of the user based at least in part upon a recent blood glucose level, a trend of blood glucose levels over time, and an insulin load of the user, and wherein the controller is configured to output an alarm in response to the predicted future blood glucose level being less than a lower threshold value or greater than a higher threshold value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A controller for an insulin infusion pump system, comprising:
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a processor; one or more computer-readable memory devices that store the glucose information received from the monitoring device and time values associated with the glucose information, wherein the one or more computer-readable memory devices store computer-readable instructions for a blood glucose prediction process that, when executed by the processor, cause the controller to; calculate a predicted future blood glucose level of the user based at least in part upon a recent blood glucose level of a user, a trend of blood glucose levels over time, and an insulin load of the user; output an alarm in response to the predicted future blood glucose level being less than a lower threshold value; and operate in a low glucose recovery mode in response to user input that accepts activation of the low glucose recovery mode. - View Dependent Claims (16, 17, 18)
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19. A method of operating an insulin infusion pump system, comprising:
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receiving, at a controller of an insulin infusion pump system, glucose information indicative of a glucose level of a user; determining an insulin load value indicative of an estimated value of previously dispensed insulin that has not yet acted in the user; calculating, at the controller of the insulin infusion pump system, a predicted future blood glucose level of the user based at least in part upon a recent glucose level of the user, a trend of blood glucose levels over time, and the insulin load of the user; and in response to the predicted future blood glucose level being less than a lower threshold value or greater than a higher threshold value, outputting an alarm from the insulin infusion pump system. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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Specification