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Weighting Restriction for Intravenous Insulin Delivery on T1DM Patient via H_{\infty } Control

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3 Author(s)
Femat, R. ; Div. de Mat. Aplic., Lab. de Biodinamica y Sist. Alineales temas (LBSA), San Luis Potosi ; Ruiz-Velazquez, E. ; Quiroz, G.

A weighting restriction with frequency components is proposed for the insulin delivery on Type 1 Diabetics Mellitus (T1DM) towards the control of the blood glucose level. The weighting restriction is stated from a model of healthy subjects which includes a rate for insulin delivery. The frequency components are incorporated via a transfer function from the plasma glucose to the free-plasma insulin such that a H infin-based controller is designed. In this way, the control synthesis involves the frequency components on which a healthy pancreas delivers insulin for the glucose homeostasis. In order to test controller performance, a dynamical model of an actuator is also included in the closed-loop system to add its effects in the closed-loop evaluation of the H infin -based controller. The actuator is a pump to deliver of an insulin infusion according with the rate computed by the controller. Note that the contribution is particularly focused on T1DM; however, the inclusion of weighting restriction can be used also onto critical care conditions.

Published in:

Automation Science and Engineering, IEEE Transactions on  (Volume:6 ,  Issue: 2 )

Date of Publication:

April 2009

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