Noninvasive deadbeat control of an implantable rotary blood pump: A simulation study

Author

Lim, E. ; AlOmari, A.H. ; Savkin, A.V. ; Lovell, N.H.

Author_Institution

Grad. Sch. of Biomed. Eng., Univ. of New South Wales, Sydney, NSW, Australia

fYear

2009

fDate

3-6 Sept. 2009

Firstpage

2855

Lastpage

2858

Abstract

A deadbeat controller has been proposed for the control of pulsatile pump flow in an implantable rotary blood pump (IRBP). A lumped parameter model of the cardiovascular system, in combination with the stable dynamical models of pulsatile flow and differential pressure (head) estimation for the IRBP was used to evaluate the controller. Pump speed and current were used as the only measured variables of the control system. The control algorithm was tested using both constant and sinusoidal reference pump flow input, under healthy and heart failure conditions. Results showed that the controller is able to track the reference input with minimal error in the presence of model uncertainty.

Keywords

blood; cardiovascular system; haemodynamics; medical control systems; physiological models; prosthetics; pulsatile flow; cardiovascular system; deadbeat controller; differential pressure estimation; implantable rotary blood pump; lumped parameter model; pulsatile flow; pulsatile pump flow; Algorithms; Animals; Aorta; Biomedical Engineering; Blood Pressure; Computer Simulation; Equipment Design; Heart Failure; Heart-Assist Devices; Reproducibility of Results; Swine;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2009. EMBC 2009. Annual International Conference of the IEEE

Conference_Location

Minneapolis, MN

ISSN

1557-170X

Print_ISBN

978-1-4244-3296-7

Electronic_ISBN

1557-170X

Type

conf

DOI

10.1109/IEMBS.2009.5333651

Filename

5333651