Effect of impeller flow path geometry on hemo-compatibility of a monopivot centrifugal blood pump

DOI

Bibliographic Information

Other Title
  • モノピボット遠心血液ポンプのインペラの流路の出口角と断面積が血液適合性に与える影響

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Description

<p>The effect of outlet angle and cross-sectional area of the impeller flow path on hemo-compatibility was investigated in a monopivot centrifugal blood pump using computational fluid dynamics analysis. Blood damage index and stagnant surface area around the pivot were compared among impeller models with different outlet angle and flow path number or cross-sectional area under the extracorporeal circulation condition. As a result, smaller outlet angle caused lower blood damage index in the pump because high shear region around the flow path outlet dissolved. But it decreased washout flow rate which increased stagnant surface area around the pivot that will deteriorate pump anti-thrombogenicity. Larger flow path number or cross-sectional area also caused lower blood damage index because high shear region around the flow path outlet dissolved. Meanwhile, it increased the washout flow rate which decreased stagnant surface area around the pivot that will improve pump anti-thrombogenicity.</p>

Journal

Details 詳細情報について

  • CRID
    1390564238024168704
  • NII Article ID
    130007483806
  • DOI
    10.11239/jsmbe.annual56.s29
  • ISSN
    18814379
    1347443X
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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