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本文提出一个表征活体血液粘度性质的指标一相对粘度差。根据粘性不可压缩流体的N-S方程导出了直圓管内具有血浆层血液作定常流动时血液表现粘度表达式,结合血浆层厚度、核心区血液粘度和红细胞压积的实验拟合公式,得到了计算相对粘度差的半经验公式。临床应用结果表明,该指标对于正常控制组、高血压病例组及脑梗基中风病例组有相当好的显著性差别。
This paper presents a measure of the nature of living blood viscosity index of a relative viscosity difference. Based on the NS equation of viscous incompressible fluid, the expression of blood viscosity in straight circular tube with blood plasma in normal flow was derived, and the experimental fitting formula of plasma thickness, central blood viscosity and hematocrit was obtained. Semi-empirical formula of viscosity difference. Clinical application results show that the indicators for the normal control group, hypertension group and cerebral infarction stroke group has quite a significant difference.