关键词: 电磁场;辐照;血液粘度;凝血

    摘 要:目的 研究电磁场变化率对血液粘度和凝血过程的影响，探索降低血液粘度，抑制凝血过快、过强的一种物理新方法. 方法 研制产生不同dE/dt，dB/dt的电磁场发生器.样品用dE/dt和dB/dt处理，处理后分别检测样品的血液粘度、红细胞电泳和凝血过程. 结果 dB/dt能使全血表观粘度η降低(P<0.01)、复钙凝血时间tr 变长(P<0.01)，血块的最大剪切应力τm 变小(P<0.01)，处理组间比较dB/dt较dE/dt作用效果明显. 结论 dB/dt能改善血液的流变特性.

    Change rate of electromagnetic fields improves blood viscosity and coagulation

    WEN Jun，QU Xue-Min，WANG Si-Gang，XUE Yuan

    Department of Physics，Faculty of Biomedical Engi-neering，Fourth Military Medical University，Xi'an710033，China

    Keywords:electromagnetic fields;radiation;blood viscosity;blood coagulation

    Abstract:AIM To study the effects of change rate of elec-tromagnetic fields(EMF)on blood apparent viscosity and co-agulation and find a new physical way to reduce the blood vis-cosity and restrain coagulation.METHODS A generator producing different dE/dt and dB/dt EMF was developed.The blood sample was treated with device and then blood ap-parent viscosity and coagulation progress were detected.RE┐SULTS With radiation of dE/dt ......