CLOSED-LOOP CONTROL OF GLUCOSE ACCORDING TO A PREDICTED BLOOD GLUCOSE TRAJECTORY
First Claim
1. A method comprising:
- predicting a trajectory of a blood glucose level of a patient based, at least in part, on past observations of said blood glucose level;
determining a cost expression based, at least in part, on said predicted trajectory; and
affecting at least one future command to at least one infusion pump so as to affect a cost value according to said cost expression.
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Abstract
Presented here are techniques for controlling glucose levels of a patient based on predicted time to a target glucose level. One methodology predicts a trajectory of the blood glucose level based on past observations of the blood glucose level, determines a cost expression based on the trajectory, and affects a future command to an infusion pump to affect a cost value according to the cost expression. Another methodology defines a target blood glucose concentration level for the patient, observes a current blood glucose concentration for the patient based on signals received from a blood-glucose sensor, and predicts a duration of time for the patient'"'"'s blood glucose concentration to reach the target blood glucose concentration level based on the observed current blood glucose concentration.
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Citations
20 Claims
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1. A method comprising:
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predicting a trajectory of a blood glucose level of a patient based, at least in part, on past observations of said blood glucose level; determining a cost expression based, at least in part, on said predicted trajectory; and affecting at least one future command to at least one infusion pump so as to affect a cost value according to said cost expression. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus comprising:
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one or more infusion pumps to infuse a substance into a body in response to commands; and a controller to; predict a trajectory of a blood glucose level of said body based, at least in part, on past observations of said blood glucose level; determine a cost expression based, at least in part, on said predicted trajectory; and affect at least one future command to said one or more infusion pumps so as to affect a cost value according to said cost expression. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. An article comprising:
a non-transitory storage medium comprising machine-readable instructions executable by a special purpose computing apparatus to; predict a trajectory of a blood glucose level of said body based, at least in part, on past observations of said blood glucose level; determine a cost expression based, at least in part, on said predicted trajectory; and affect at least one future command to said one or more infusion pumps so as to affect a cost value according to said cost expression.
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19. An apparatus comprising:
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means for predicting a trajectory of a blood glucose level of a patient based, at least in part, on past observations of said blood glucose level; means for determining a cost expression based, at least in part, on said predicted trajectory; and means for affecting at least one future command to at least one infusion pump so as to affect a cost value according to said cost expression. - View Dependent Claims (20)
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Specification