title: A comparative study on extra-corporal circulation control.
abstract: Hydraulic models of the human circulatory system allow simulation of hemodynamics in a standardized setting. In this work we use such a model to compare concurrent control strategies for extra-corporal circulation control. Patients suffering from cardio-vascular diseases under extra-corporal circulation can benefit from an automated regulation. The control task is to keep either the pump flow or the pressure in the cardio-vascular system at a constant target value, despite any parameter variations or external perturbations. We implement four control strategies that seem favorable for our task: a Proportional-Integral Controller, a H(∞)-Controller, a PI-Fuzzy Controller and a Model Reference Adaptive Controller. The methods are compared quantitatively and their advantages and drawbacks are discussed.
authors.affiliation: Robotics and Embedded Systems Group, Department of Computer Science, Technische Universitaet Muenchen, Boltzmannstr 3, 85748 Garching b Muenchen, Germany. baumgarb@in.tum.de
authors.forename: Benedikt
authors.initials: B
authors.lastname: Baumgartner
authors.forename: Alejandro
authors.initials: A
authors.lastname: Mendoza
authors.forename: Stefan
authors.initials: S
authors.lastname: Eichhorn
authors.forename: Ulrich
authors.initials: U
authors.lastname: Schreiber
authors.forename: Alois
authors.initials: A
authors.lastname: Knoll
mesh_terms: D005112:Extracorporeal Circulation; D006801:Humans; D008962:Models, Theoretical