1010 血液のせん断流れ場において金属材料表面粗さが溶血に及ぼす影響(OS2-(3) ライフサポートにおける工学技術,オーガナイズドセッション)

概要

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It is important to clarify the relationship between the hemolysis level and degree of surface roughness on the metal surface under blood shear fields. From our previous study using a rotational shear stressor, we have obtained the following results; the hemolysis level was increased between Ra 0.1 and 0.8μm, and showed constant over 0.8μm under laminar shear fields. Especially between Ra 0.6 and 0.8μm, the level of hemolysis rapidly increased and suggested that the increased hemolysis was related to the shear stress due to the surface roughness. However we have not yet measured the increasing shear stress amount with the stressor. In this study, we tried to quantify the shear stress level using viscous test blood with dextran solution.
一般社団法人日本機械学会の論文
2009-08-25