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A novel interface for hybrid mock circulations to evaluate ventricular assist devices


Ochsner, Gregor; Amacher, Raffael; Amstutz, Alois; Plass, André; Daners, Marianne Schmid; Tevaearai, Hendrik; Vandenberghe, Stijn; Wilhelm, Markus J; Guzzella, Lino (2013). A novel interface for hybrid mock circulations to evaluate ventricular assist devices. IEEE Transactions on Bio-Medical Engineering, 60(2):507-516.

Abstract

This paper presents a novel mock circulation for the evaluation of ventricular assist devices (VADs), which is based on a hardware-in-the-loop concept. A numerical model of the human blood circulation runs in real time and computes instantaneous pressure, volume, and flow rate values. The VAD to be tested is connected to a numerical-hydraulic interface, which allows the interaction between the VAD and the numerical model of the circulation. The numerical-hydraulic interface consists of two pressure-controlled reservoirs, which apply the computed pressure values from the model to the VAD, and a flow probe to feed the resulting VAD flow rate back to the model. Experimental results are provided to show the proper interaction between a numerical model of the circulation and a mixed-flow blood pump.

Abstract

This paper presents a novel mock circulation for the evaluation of ventricular assist devices (VADs), which is based on a hardware-in-the-loop concept. A numerical model of the human blood circulation runs in real time and computes instantaneous pressure, volume, and flow rate values. The VAD to be tested is connected to a numerical-hydraulic interface, which allows the interaction between the VAD and the numerical model of the circulation. The numerical-hydraulic interface consists of two pressure-controlled reservoirs, which apply the computed pressure values from the model to the VAD, and a flow probe to feed the resulting VAD flow rate back to the model. Experimental results are provided to show the proper interaction between a numerical model of the circulation and a mixed-flow blood pump.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Clinic for Cardiovascular Surgery
Dewey Decimal Classification:610 Medicine & health
Language:English
Date:2013
Deposited On:21 Mar 2013 11:05
Last Modified:05 Apr 2016 16:27
Publisher:Institute of Electrical and Electronics Engineers
ISSN:0018-9294
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1109/TBME.2012.2230000
PubMed ID:23204266

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