摘要
恒温输血/输液器是临床上用于药液和血液加热必不可少的设备。设计一个新型的恒温输血管模型,利用以螺旋形式在PVC(聚氯乙烯)输血管管壁夹层中电镀一层镍铬合金作为发热源,并使用COMSOL Multiphysics软件对该模型进行温度场仿真与参数优化。结果表明,在优化后的模型参数下,该恒温输血管模型可以满足对流速在50~150 mL/min下的血液进行快速恒温加热的需求。并且可以在10 s内将流速为150 mL/min的血液从20℃加热到33.8℃,同时PVC输血管的最高温度低于65℃,不会有污染血液的风险。研究结果表明在大流速加温输血情况下,该恒温输血管对血液的加热速度快、无污染,并且恒温过程安全、快速、有效。
Thermostatic transfusion/infusion apparatus is an indispensable device for heating liquid medicine and blood in clinic.A new model of thermostatic transfusion tube was designed,and an electroplating layer of nickel-chromium alloy in the interlayer of PVC(polyvinyl chloride)transfusion tube was used as the heat source.COMSOL Multiphysics software was used to simulate the temperature field and optimize the parameters of the model.The results show that under the optimized model parameters,the thermostatic transfusion tube model can meet the requirements of rapid thermostatic heating of blood at a flow rate of 50–150 ml/min.In addition,blood with a flow rate of 150 ml/min can be heated from 20℃to 33.8℃within 10 s.Meanwhile,the highest temperature of PVC blood transfusion tube is lower than 65℃,without risk of blood contamination.The results of study show that the heating speed of the thermostatic transfusion tube is fast without pollution for blood,and the thermostatic process is safe,fast and effective in the case of high flow rate of heated transfusion.
作者
冯华洋
杨佳晨
徐建
高路
FENG Hua-yang;YANG Jia-chen;XU Jian;GAO Lu(School of Electrical and Electronic Engineering,Wuhan Polytechnic University,Wuhan 430023,China)
出处
《武汉轻工大学学报》
CAS
2022年第4期82-87,共6页
Journal of Wuhan Polytechnic University
关键词
恒温输血管
流固传热
COMSOL
镍铬合金
thermostatic transfusion tube
fluid and solid heat transfer
COMSOL
nickel-chromium alloy
