Estimation of Hemolysis in the Axial Flow Blood Pump Using CFD

DOI 12 References
  • Mitoh A
    Tomakomai National College of Technology
  • Yano T
    Hokkaido University Graduate School of Engineering
  • Sekine K
    Hokkaido University Graduate School of Engineering
  • Mitamura Y
    Hokkaido University Graduate School of Engineering

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Other Title
  • 数値流体解析による軸流型血液ポンプの溶血予測評価

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Abstract

Hemolysis is one of important factors in developing rotary blood pumps. It is, however, difficult to identify the areas where hemolysis occurs. Computational fluid dynamics(CFD)analysis enables the engineer to predict hemolysis on a computer. In this study fluid dynamics were analyzed in a wholer region of the intra-cardiac axial flow pump. Reynolds shear stresses were computed along particle trace lines. Hemolysis was evaluated based on the shear stress(τ)and its exposure time(Δt): dHb/Hb=3.62×10-7τi2.416×Δti0.785. Particle damage was accumulated with time along the particle trace lines. The computed hemolysis values were compared with experimental results. The hemolysis characteristic results were in good agreement with the CFD values. CFD is a very powerful tool to develop rotary blood pumps.

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Details 詳細情報について

  • CRID
    1390282679343842432
  • NII Article ID
    10013402950
  • NII Book ID
    AA11947931
  • DOI
    10.5136/lifesupport.14.137
  • ISSN
    18845827
    13419455
  • Text Lang
    ja
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
    • KAKEN
  • Abstract License Flag
    Disallowed

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