Measurement of human blood viscosity by an electromagnetic spinning sphere viscometer
Measurement of human blood viscosity by an electromagnetic spinning sphere viscometer
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DOI：
10.1080/03091902.2016.1181216
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发表时间：
2016-01-01
影响因子：
--
通讯作者：
Houkin, Kiyohiro
中科院分区：
文献类型：
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作者：
Furukawa, Koji;Abumiya, Takeo;Houkin, Kiyohiro
本文首次将电磁旋转球（EMS）粘度计应用于人体血液粘度的测量。我们从100名健康的门诊志愿者收集血液样品，以分析粘度对血细胞参数和剪切速率的依赖性，其具有简单的近似公式[（i）（i）= A（i）（- pi）+（0）]。在高剪切速率下，粘度对血细胞参数的依赖性相对较高，但随着剪切速率的降低而降低。采用适当的参数A（i）和p（i）的近似公式几乎忠实地再现了实际血液流变学行为，标准偏差为1.5%。A（i）和p（i）值的分布较宽，表明粘度对剪切速率的依赖性随个体差异而变化。使用EMS粘度计获得的结果表明，血液粘度值是个体特异性的，并且实际的个体测量对于理解流变学条件是重要的。
We herein applied an electromagnetic spinning sphere (EMS) viscometer to the measurement of human blood viscosity for the first time. We collected blood samples from 100 healthy outpatient volunteers in order to analyse viscosity dependence on blood cell parameters and on the shear rate with a simple approximation formula [(i) ()\, = A(i) (- pi) + (0)]. Viscosity dependence on blood cell parameters was relatively high at a high shear rate, but became lower as the shear rate decreased. The approximation formula with appropriate parameters of A(i) and p(i) nearly faithfully reproduced actual blood rheological behaviour with a standard deviation of 1.5%. The distributions of A(i) and p(i) values were broad, suggesting that the pattern of viscosity dependence on the shear rate varied with individual differences. The results obtained using the EMS viscometer suggest that blood viscosity values are individual-specific and actual individual measurements are important for understanding rheological conditions.