中文摘要：

背景：血液作为人工器官的润滑剂，其润滑性能受到多种因素的影响，其中红细胞比秋足影响血液润滑性能的一个重要因素。目的：分析红细胞比积对血液润滑性能的影响。方法：根据GB3142．82测试润滑剂承载能力的方法，测试血浆、红细胞比积为25％、红细胞比积为30％、全血这4种不同比积的血液的润滑性能。采用leicaDMI 5000M显微镜观察钢球表俩的磨斑，以及不同比积的血液在钢球表嘶形成的吸附膜。结果与结论：①铡球表面形成的吸附膜，其微观形貌依赖于润滑血液中红细胞的比积。②红细胞比积越岛，钢球磨损越小，即钢球表面癌斑越小。润滑血液中，红细胞比积越大，血液的润滑性能越好，其承载能力越强。

英文摘要：

BACKGROUND： As a lubricant of artificial organs, lubricant capacity of blood is influenced by many factors, including hematocrit OBJECTIVE： To explore the effect of hematocrit on blood lubricant capacity. METHODS： The lubricant capacities of four kinds of hernatocrit blood were studied by GB3142-82 lubricants-determination of bearing capacity testing. In addition, the differences of worn spots and the adsorption film formed on the steel ball under different hematocrit blood lubricating were observed by the Leica DMI 5000M material microscope. RESULTS AND CONCLUSION： （1）The microshape of the adsorption films was depended on the hematocrit. （2）The greater hematocrit levels, the smaller worn spots formed on the steel ball, namely, increased hematocrit lead to stronger bearing capacity