寸口脉的脏腑配位研究中脉搏波理论的局限性

Limitations of the Pulse Wave Theory in the Study of the Pulse-Viscera Correspondence at Cunkou

摘要: 现代脉诊学运用脉搏波理论对桡动脉寸口处的脉象响应进行客观化研究，极大地丰富和促进了中医脉诊理论和实践的发展，但是还不能解释中医理论所描述的所有重要脉象特征，例如寸口脉的脏腑配位关系。本研究从脉搏波的波长与桡动脉寸口处长度的对比、脉搏波的行波而非驻波特性、以及脉搏波的频谱分析几个方面，探讨了脉搏波理论和传统脉诊实践两者对于寸口处脏腑配位关系的认识差异，讨论了脉搏波理论在该应用情况下所存在的局限性，并指出综合考虑气与血的运行才能实现更全面更符合传统中医理论原意的脉诊和脉象研究。

Abstract: Modern sphygmology uses the pulse wave theory to objectively analyse the pulse manifestation at the Cunkou position of the radial artery, which enormously enriches and promotes the development of the theory and the practice of pulse taking in the Traditional Chinese Medicine (TCM). However, modern sphygmology still cannot explain other important features in the pulse manifestation described in the TCM theory, for example, the pulse-viscera correspondence at Cunkou. This study addresses the difference in the understanding to the pulse-viscera correspondence at Cunkou between the modern sphygmology using the pulse wave theory and the TCM based on the pulse taking practice, from the aspects of: comparison of the wavelength of the pulse wave with the length scale of Cunkou; the nature of the pulse wave being a traveling wave rather than a standing wave; and the spectrum analysis of the pulse wave. The study also briefed on the limitations of the pulse wave theory in explaining the pulse-viscera correspondence at Cunkou, and suggested that in future research the analysis of the qi should be explored and integrated into the blood flow study, to improve the research and better match the doctrine on pulse taking and pulse manifestation in the TCM theory.