Patent ID: 9474855
Filing Date: 2016-10-25
CPC Classification: A61M

Claim Text:
1. A method to control a system for management of diabetes using a model predictive controller having a tuning factor (R), the tuning factor (R) being adjustable between a conservative tuning factor and an aggressive tuning factor, the system comprising an infusion pump with a microcontroller to control the pump and receive data from at least one glucose sensor, and the method comprising: measuring glucose level in the subject from the glucose sensor to provide at least one glucose measurement in each time interval in a series of discrete time intervals; determining a change in an accuracy of the system, the determining comprising: setting the tuning factor (R) for the model predictive controller in the microcontroller as the conservative tuning factor responsive to determining the reduction in the accuracy of the system, or the aggressive tuning factor responsive to determining the increase in the accuracy of the system; calculating an insulin amount for delivery by the microcontroller based on the model predictive controller that utilizes the tuning factor (R) so as to provide a calculated insulin amount to be delivered to the subject for one or more of the discrete time intervals; and delivering via actuation of a pump by the microcontroller of the insulin amount determined from the calculating step.