摘要
本文首次将以前我们用毛细管血液粘度和常规电导仪测量所得到的，血粘度（η）与其电阻率（ρ）之间的关系、推广到用旋转式血粘度计与自行研制的电阻抗法红细胞流变特性仪所测得的η－ρ曲线的动态函数关系。即考虑到切变流场中（切变率γ变化范围０－３００ｓ^（－１））血液粘度与其电阻率的关系。为了深入理解血液粘度的微观流变特性，我们利用Ｆｒｉｃｋｅ的悬浮液电导理论以及本文作者对血液电流变特性研究的一些结果，建立了宏观流变学量──血液粘度与血球压积和切变流场中红细胞聚集一解聚、取向、变形等流变学量之间的函数关系，从而提示出血液粘度的微观流变学机理。
Through extension of relation between blood viscosity(η) and electric resistivity(ρ)obtained using capillary viscometer and conventional conductometer, the authors obtained a dynamic function relation of viscosity and resistivity(η-ρ)curve using rotational viscometer and selfmade conductometer for use in RBC rheological study.On the basis of known relation between blood viscosity and electric resistivity in a shear flow field(of shear rate of 0-300s￣(-1)) by application of Fricke's theory of RBC suspension conductivity and the authors' data of electric hemorheological study, function relation was obtained between blood viscosity and electric resistivity, the latter including factors as hematocrit, RBC aggregation-disaggregation, RBC orientation and RBC deformation in shear flow field.
出处
《中国生物医学工程学报》
CAS
CSCD
北大核心
1994年第4期345-350,共6页
Chinese Journal of Biomedical Engineering
基金
国家自然科学基金
关键词
血粘度
红细胞变形
取向
Blood viscosity
Electric resistivity
RBC deformabilityi
Orientation
