LQG artificial pancreas control system and related method
AssigneeUniveristy of Virginia Patent Foundation
InventorsStephen D. Patek, Marc D. Breton
Life of this patent
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Abstract
The invention relates to a methods and systems for determining an insulin dosing recommendation. The invention employs Linear Quadratic methodology to determine the insulin dosing recommendation based on a patient's present physiological state, which is estimated by an adaptive filter methodology employing a dynamic model, which utilizes real-time measurements of blood glucose concentration.
Claims14
A computer-implemented method for insulin dosing, the method comprising:
- receiving an estimate of a present physiological state, wherein the estimate is based on a model of the present physiological state, wherein the model is one of a plurality of models, wherein the model has a dimensionality that differs from at least one other model of the plurality of models;
- determining an insulin dosage based on the estimate of the present physiological state and a minimization of cost associated with deviation from an operating point;
- and
- at least one of:
- administering the insulin dosage;
- or
- controlling administration of insulin via an insulin dosage signal based on the insulin dosage.
A system for insulin dosing, the system comprising at least one processor, wherein the at least one processor is operable to:
- receive an estimate of a present physiological state, wherein the estimate is based on a model of the present physiological state, wherein the model is one of a plurality of models, wherein the model of the plurality of models has a dimensionality that differs from at least one other model of the plurality models;
- determine an insulin dosage based on the estimate of the present physiological state and a minimization of cost associated with deviation from an operating point;
- and
- at least one of:
- administer the insulin dosage;
- or
- control administration of insulin via an insulin dosage signal based on the insulin dosage.
Dependencies are inferred from the claim text.