CUED Publications database

A controller for a miniature intra-aortic ventricular assist device.

Hsu, PL and Bruch, J and McMahon, R (2011) A controller for a miniature intra-aortic ventricular assist device. Artif Organs, 35. pp. 282-287.

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Abstract

Two control algorithms have been developed for a minimally invasive axial-flow ventricular assist device (VAD) for placement in the descending aorta. The purpose of the device is to offload the left ventricle and to augment lower body perfusion in patients with moderate congestive heart failure. The VAD consists of an intra-aortic impeller with a built-in permanent magnet rotor and an extra-aortic stator. The control algorithms, which use pressure readings upstream and downstream of the VAD to determine the pump status, have been tested in a mock circulatory system under two conditions, namely with or without afterload sensitivity. The results give an insight into controller design for an intra-aortic blood pump working in series with the heart.

Item Type: Article
Uncontrolled Keywords: Algorithms Heart-Assist Devices Humans Models, Cardiovascular Prosthesis Design Ventricular Function
Subjects: UNSPECIFIED
Divisions: Div B > Electronics, Power & Energy Conversion
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:30
Last Modified: 18 Dec 2014 19:02
DOI: 10.1111/j.1525-1594.2010.01060.x