Patent Document ID: 8945094
Application ID: 12877795
Patent Flag: 1

Claim One:
1. A method comprising: receiving measurements from a sensor associated with a patient at a portable medication delivery device; and controlling delivery of medication to the patient at the portable medication delivery device using a single input, single output (SISO) model predictive control technique that includes: predicting a characteristic of the patient using the measurements and a model associated with the patient; determining whether the characteristic of the patient is predicted to fall outside of a desired range; and if the characteristic of the patient is predicted to fall outside of the desired range, determining an amount of medication to deliver to the patient and automatically delivering the determined amount of medication to the patient, wherein determining the amount of medication to deliver comprises predicting an effect the amount of medication will have on the characteristic of the patient based on the model and estimating the amount of medication to return the characteristic of the patient to the desired range using the predicted effect and the model; after delivery of at least a portion of the amount of medication to the patient, determining how closely an actual effect the amount of medication has on the characteristic of the patient tracks with the predicted effect; and in response to determining that a difference between the actual effect and the predicted effect exceeds a threshold, identifying a new model to use in predicting the characteristic of the patient, wherein the amount of medication automatically delivered to the patient always satisfies one or more constraints associated with at least one of a maximum amount or a minimum amount of medication.