Hydraulic force and impellor evaluation of a centrifugal heart pump

Timms, Daniel L., Tan, Andy C., Pearcy, Mark J., McNeil, Keith, & Galbraith, Andrew (2004) Hydraulic force and impellor evaluation of a centrifugal heart pump. Journal of the Korean Society of Marine Engineers, 28(2), pp. 376-381.

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A rig was constructed to test the performance characteristics and compare the hydraulic forces exerted on a centrifugal type artificial heart impeller. A conventional shaft, seal and bearing system, while driven by a small electric motor, supported the impeller which was separated from the pump casing by a 6 axis force transducer (JR3 Inc). Radial (x,y) and axial (z) hydraulic forces were recorded and compared. At physiological operating conditions, the results indicate that the double entry/exit centrifugal pump encounters a smaller radial force and significantly reduced axial thrust. These experimental results are valuable in the design of a magnetic bearing system to suspend the impeller of a centrifugal artificial heart pump. This experimental technique may also be applied to evaluate the required capacity and predict the lifetime of contact bearings in marine pumps.

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ID Code: 8238
Item Type: Journal Article
Refereed: Yes
Additional Information: For more information, please refer to the journal’s website (see hypertext link) or contact the author.
Author contact details: m.pearcy@qut.edu.au
Additional URLs:
Keywords: Artificial Heart, Centrifugal Pump, Hydraulic forces, LVAD
ISSN: 1226-9549
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > BIOMEDICAL ENGINEERING (090300) > Biomechanical Engineering (090302)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Current > Institutes > Institute of Health and Biomedical Innovation
Copyright Owner: Copyright 2004 NuriMedia Co., Ltd.
Deposited On: 22 Jun 2007 00:00
Last Modified: 24 Jun 2017 14:31

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