基于中医脉象的桡动脉血管模型的建立

Model of Radial Artery Based on Human Pulse

为了明确各部脉象之间的异同,利用工程学思想分析中医脉象的方法,根据双弹性腔模型和弹性管模型建立了桡动脉血管的电路模型.利用此模型模拟仿真了在尺部电阻、电感参数不同的情况下,尺部输入相同脉象波形时的关脉和寸脉输出脉象波形.其结果显示参数的改变对关脉影响较小,对寸部脉象影响较大,说明了中医取脉时,改变布指方式和取脉压力会对脉象波形有较大影响,医生通过指端的调节可获取更多的脉象信息.通过改变关部取脉压力前后寸部的脉象图对比,分析了寸、关、尺三部脉象之间的关系,解释了中医脉诊手法的合理性.

For the purpose of clarifying the differences and similarities of different pulses, a radial artery circuit model was built based on the existing model of two elastic chambers and elastic tube by analyzing the pulse signal with engineering method. With the help of this model, a simulation was conducted, aiming at finding out what will happen to the output signal of Guan and Cun when there is a change in resistance and inductance between Chi and Cun has the same input signal. The experimental result shows that the change has more influence on Cun than on Guan, which indicates that the way the doctor changes his fingers when taking a diagnosis will has great effect on pulse wave, so he can get more information by adjusting his finger tips. The comparison of the pulse at Cun before and after the pressure change at Guan explains the reasonableness in the way of Chinese pulse diagnosis.