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Experimental Study of Dynamic Characteristics of a Centrifugal Blood Pump With a Conical Spiral Groove Bearing for a Ventricular Assist Device

[+] Author Affiliations
Youichi Nakamura, Hiroshi Tsukamoto, Koji Miyazaki

Kyushu Institute of Technology, Kitakyushu, Fukuoka, Japan

Yi Qian

University of East Asia, Shimonoseki, Yamaguchi, Japan

Paper No. FEDSM2007-37235, pp. 1187-1194; 8 pages
doi:10.1115/FEDSM2007-37235
From:
  • ASME/JSME 2007 5th Joint Fluids Engineering Conference
  • Volume 1: Symposia, Parts A and B
  • San Diego, California, USA, July 30–August 2, 2007
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 0-7918-4288-6 | eISBN: 0-7918-3805-6
  • Copyright © 2007 by ASME

abstract

Ventricular assist device (VAD) has been effective for cardiac patient. The VAD is set downstream of the heart, the pulsation of which effects the blood pump of the VAD. Therefore, the dynamic characteristics of the blood pump are important. In this study, we investigated the dynamic characteristics and rotor whirling motion of a centrifugal blood pump with a Conical Spiral Groove Bearing (CSGB). The flow through the pump was excited from 0.25 to 3 Hz by the vibration exciter in the mock circulatory system, and the conditions for stability of the blood pump were determined based on the dynamic characteristics tests.

Copyright © 2007 by ASME

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