High-resolution fluorescent particle-tracking flow visualization within an intraventricular axial flow left ventricular assist device

John P. Kerrigan, Kenji Yamazaki, Rebecca K. Meyer, Toshio Mori, Yasuo Otake, Eisuke Outa, Mitsuo Umezu, Harvey S. Borovetz, Robert L. Kormos, Bartley P. Griffith, Hitoshi Koyanagi, James F. Antaki

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Flow visualization is typically applied in blood pump development to both confirm the design expectations and identify regions that may be predisposed to blood element deposition and trauma. Rotary pumps, in particular, place high demands on the technique chosen to visualize the flow given the limited visual accessibility of the flow path and the high impeller speeds. Fluorescent image-tracking velocimetry currently is used at the University of Pittsburgh Medical Center to visualize flaw accurately inside of these pumps both qualitatively and quantitatively. Flow patterns under steady conditions within an intraventricular axial flow, left ventricular assist pump (prototype No. 7, SUN Medical Technology Research Corporation, Nagano, Japan) were investigated using this technique. The flow fields at the impeller-stator interface and the pump outlet were given specific attention. This allowed the assessment of the fluid dynamics throughout the hydrodynamic design limits of the pump.

Original languageEnglish
Pages (from-to)534-540
Number of pages7
JournalArtificial Organs
Volume20
Issue number5
Publication statusPublished - 1996 Jan 1

Keywords

  • Artificial organs
  • Axial pump
  • Flow visualization
  • Fluorescent image tracking velocimetry

ASJC Scopus subject areas

  • Bioengineering
  • Medicine (miscellaneous)
  • Biomaterials
  • Biomedical Engineering

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  • Cite this

    Kerrigan, J. P., Yamazaki, K., Meyer, R. K., Mori, T., Otake, Y., Outa, E., Umezu, M., Borovetz, H. S., Kormos, R. L., Griffith, B. P., Koyanagi, H., & Antaki, J. F. (1996). High-resolution fluorescent particle-tracking flow visualization within an intraventricular axial flow left ventricular assist device. Artificial Organs, 20(5), 534-540.