Advertisement

Journal of Visualization

, Volume 15, Issue 4, pp 353–361 | Cite as

Visualization of main and leakage flow in magnetically suspended centrifugal blood pump

  • Masaaki HorieEmail author
  • Keiichi Yamamura
Regular Paper

Abstract

Magnetically suspended centrifugal blood pump is implantable blood pump that can obtain an enough blood pressure and blood flow to assist the adult left ventricle. This blood pump has an impeller without a shaft in order to avoid thrombus formation on the shaft seal. It is important to improve the efficiency of this artificial heart pump and to develop a pump with a low-machine Reynolds number and a low-specific speed. In this study, we carried out a visualization experiment with a rotating Dove prism and concluded with a numerical analysis, focusing on the main flow and leakage flow. It was found that the main flow pattern inside the impeller was different between all vanes, and the leakage flow in the gap was non-uniform.

Graphical Abstract

Keywords

Centrifugal pump Artificial heart Specific speed Leakage flow Dove prism 

Supplementary material

Supplementary material 1 (MPG 1434 kb)

Supplementary material 2 (MPG 1442 kb)

References

  1. Akamatsu T, Tsukiya T et al (1995) Recent studies of the centrifugal blood pump with a magnetically suspended impeller. Artif Organs 19(7):631–634CrossRefGoogle Scholar
  2. Bearnson GB, Jacobs GB et al (2006) HeartQuest ventricular assist device magnetically levitated centrifugal blood pump. Artif Organs 30(5):339–346CrossRefGoogle Scholar
  3. Burgreen GW, Loree HM, Bourque K et al (2004) Computational fluid dynamics analysis of a maglev centrifugal left ventricular assist device. Artif Organs 28(10):874–880CrossRefGoogle Scholar
  4. Matsuoka D, Ogami Y, Horie M (2009a) Computational study of the magnetically suspended centrifugal blood pump, 1st report: main flow and gap flow. Turbomach Soc Jpn 37(6):355–364Google Scholar
  5. Matsuoka D, Ogami Y, Horie M (2009b) Computational study of the magnetically suspended centrifugal blood pump, 2nd report: pressure variability and stability of impeller rotation for different volute shapes. Turbomach Soc Jpn 37(7):438–447Google Scholar
  6. Nojiri C, Kijima T et al (2000) Terumo implantable left ventricular assist system: results of long-term animal study. ASAIO J 46–1:117–122CrossRefGoogle Scholar
  7. Tsukiya T, Akamatsu T, Ozaki T (1997) Fluid Dynamic Design of KYOTO-NTN Magnetically Suspended Centrifugal Blood Pump. ASME FEDSM97-3425Google Scholar

Copyright information

© The Visualization Society of Japan 2012

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringSetsunan UniversityNeyagawaJapan
  2. 2.Graduate School of EngineeringSetsunan UniversityNeyagawaJapan

Personalised recommendations