Design optimization of artificial heart blood pumps based on hemolysis testing

研究成果: Paper

6 引用 (Scopus)

抜粋

A measurement of blood hemolysis level (damage of blood cells) during pumping is one of the most effective methods to determine an ideal design feature of blood pumps which are under developmental stage. In this paper, typical results obtained by in vitro hemolysis test were introduced. Fundamental data on the effects of inner shapes on blood hemolysis suggested that an inlet taper or leading small round edge of the stenosis were quite effective to reduce a hemolysis level. In addition, it was revealed that a surface roughness was a great factor to the hemolysis. For the next step, a comparative in vitro hemolysis test was performed among three blood pumps. As the spiral vortex (SV) pump has been developing, the level of hemolysis was measured one after the other. The SV pump produced lower hemolysis than a roller pump which is widely used as a blood pump in open heart surgery. A conventional ( parallel inlet and outlet ports, dome shaped housing) commercially available ventricular assist pump exhibited comparatively higher hemolysis than the SV pump. Then, the superiority of the SV design concept was verified.

元の言語English
ページ33-34
ページ数2
出版物ステータスPublished - 1994 12 1
イベントProceedings of the 1994 International Mechanical Engineering Congress and Exposition - Chicago, IL, USA
継続期間: 1994 11 61994 11 11

Other

OtherProceedings of the 1994 International Mechanical Engineering Congress and Exposition
Chicago, IL, USA
期間94/11/694/11/11

ASJC Scopus subject areas

  • Engineering(all)

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  • これを引用

    Umezu, M. (1994). Design optimization of artificial heart blood pumps based on hemolysis testing. 33-34. 論文発表場所 Proceedings of the 1994 International Mechanical Engineering Congress and Exposition, Chicago, IL, USA, .