Computational Fluid Dynamics Analysis of a Maglev Centrifugal Left Ventricular Assist Device

: The fluid dynamics of the Thoratec HeartMate III (Thoratec Corp., Pleasanton, CA, U.S.A.) left ventricular assist device are analyzed over a range of physiological operating conditions. The HeartMate III is a centrifugal flow pump with a magnetically suspended rotor. The complete pump was analyzed...

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Bibliographic Details
Published in:Artificial organs 2004-10, Vol.28 (10), p.874-880
Main Authors: Burgreen, Greg W., Loree, Howard M., Bourque, Kevin, Dague, Charles, Poirier, Victor L., Farrar, David, Hampton, Edward, Wu, Z. Jon, Gempp, Thomas M., Schöb, Reto
Format: Article
Language:English
Subjects:
Assisted Circulation - instrumentation
Biomedical Engineering
Blood Circulation
Blood Flow Velocity
Centrifugal flow
Computational fluid dynamics
Computer Simulation
Heart, Artificial
Heart-Assist Devices
Humans
Left ventricular assist device
Magnetically suspended rotor
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Summary:: The fluid dynamics of the Thoratec HeartMate III (Thoratec Corp., Pleasanton, CA, U.S.A.) left ventricular assist device are analyzed over a range of physiological operating conditions. The HeartMate III is a centrifugal flow pump with a magnetically suspended rotor. The complete pump was analyzed using computational fluid dynamics (CFD) analysis and experimental particle imaging flow visualization (PIFV). A comparison of CFD predictions to experimental imaging shows good agreement. Both CFD and experimental PIFV confirmed well‐behaved flow fields in the main components of the HeartMate III pump: inlet, volute, and outlet. The HeartMate III is shown to exhibit clean flow features and good surface washing across its entire operating range.
ISSN:0160-564X
1525-1594
DOI:10.1111/j.1525-1594.2004.07384.x