210 動圧軸受遠心血液ポンプの性能と溶血に及ぼす羽根隙間の影響(ライフサポートにおける工学技術)

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We have developed a centrifugal blood pump with hydrodynamic bearings. To investigate the loss of pump head, flow visualization experiment was performed. As a result, tangential velocity in the vane/casing gap when the impeller is apart from the casing was found to be lower than that when locating in the vicinity of the casing. Impeller displacement measurement and hemolysis test showed that the more the vane/casing gap expanded, the lower the hemolysis level become. We found that expansion of the vane/casing gap is effective to reduce hemolysis but that too much expansion of the gap causes to lose pump head
社団法人日本機械学会の論文
2007-09-28