摘要
中医的脉象是脉搏波受人体的生理参数影响而形成,由桡动脉血液流动模型研究中医的最佳取脉压力,对于脉象仪的发展和中医脉诊的客观化研究具有重要的意义。依据血液动力学的原理、方法和已有的桡动脉血管等效模型,建立了血液通过桡动脉时脉管受外界不同压力时的流动模型,推导出脉动压与取脉压力的关系,从理论上对最佳取脉压力进行了解释。通过脉象仪采集了平脉、浮脉、沉脉三例临床案例验证最佳取脉压力的数学模型,得到了如下临床结果:最佳取脉压力随脉象的不同而不同,平脉脉搏波峰值先增大后减小,取脉压力最大处为取脉压力适中的时候;浮脉脉搏波峰值一直增大,取脉压力最大处为取脉压力很小的时候;沉脉脉搏波峰值一直减小,取脉压力最大处为取脉压力较大的时候。临床结果与理论证明吻合,说明脉动压的大小和取脉压力的大小关系密切,脉动压最大处即最佳取脉压力点。
Pulse manifestation in Traditional Chinese Medicine （TCM） was formed by pulse wave which is affected by body＇s physiological parameters. The best pressure to acquire pulse wave was an important part of objective study of TCM pulse diagnosis, which was assumed and analyzed according to the rule of thumb before and there was no theoretical basis for it. Therefore, studying the best pressure to acquire pulse wave in the light of radial artery hlood flow model has an important significance for the improvement of electropulsograph and the objective research of TCM pulse diagnosis. According to the theories and methods from hemodynamics and the existing equivalent model of radial artery blood vessel, blood flow model of different pressure from the outside was built. Meanwhile, the relationship between pulse pressure and the pressure to acquire pulse wave was derived, which explains the best pressure to acquire pulse waves in theory. And the mathematical model of the best pressure to acquire pulse wave was verified by normal pulse, floating pulse, deep pulse--three clinical cases which collected by electropulsograph. The clinical results were as follows： The best pressure to acquire pulse wave varies with pulse manifestation. The peak value of normal pulse first rises and then decreases, the best pressure to acquire pulse wave is in the moderate pressure. The peak value of floating pulse increases continuously, the best pressure to acquire pulse wave is in the light pressure. And the peak value of deep pulse has been reduced, the best pressure to acquire pulse wave is in the heavy pressure. Clinical results are in reasonable agreement with theoretical proof, it testified that pulse pressure and the pressure to acquire pulse wave are closely related, and the maximum value of pulse pressure is the best position to acquire pulse wave.
出处
《计算机与应用化学》
CAS
2015年第2期129-134,共6页
Computers and Applied Chemistry
基金
国家科技支撑计划(2012BAI25B05)
国家自然科学基金面上项目(81173202)
天津市自然基金项目(No.13JCQNJC13900)
关键词
脉象
血液流动模型
血液动力学
最佳取脉压力
pulse manifestation
blood flow model
hemodynamics
best pressure to acquire pulse wave
