关键词: 超声处理;红细胞;聚集;血沉

    摘 要:目的 研究超声驻波不同作用时间对血液沉降过程的影响. 方法 对14份血液样品用功率密度Ⅰ=1.05W·cm-2 的超声驻波场分别作用0～200s各不相等的时间，观察红细胞沉降现象并记录沉降指标. 结果 驻波场沉降曲线与自然沉降曲线有相似之处;驻波加速血沉的作用具有最小时间阈;存在驻波作用的“饱和时间”;一定条件下超声间歇作用于血样不会产生“时间累积效应”. 结论 超声驻波场对血液沉降的加速作用具有时间依赖性.

    Ultrasonic standing wave field has to do wilh ery┐throcyte sedimentation

    JU Hong-Bo LUO Zhi-Cheng YANG Ji-Qing QU Xue-Min WANG Si-Gang MA Hong-Yan YAO Bao-Ying

    1 Department of Physics，Faculty of Biomedical En-gineering，

    3 Transfusion Department，Xijing Hospi-tal，Fourth Military Medical University，Xi'an710033，China，

    2 Institute of Biomedical Engineer-ing，Chinese Academy of Medical Sciences，Tianjin300192，China

    Keywords:sonication;erythrocyte;aggregation;blood sedi-mentation

    Abstract:AIM To study the effect of different exposure time in the ultrasonic standing wave field(USWF)on the process of erythrocyte sedimentation.METHODS Erythro-cyte sedimentation of14blood samples ......