Zhang Aihua, Hao Jinhua, Lin Dongmei, Wang Jingyang
School of Electrical and Information Engineering, Lanzhou University of Technology, Gansu, Lanzhou, 730050.
Key Laboratory of Gansu Advanced Control for Industrial Processes, Lanzhou University of Technology, Lanzhou, 730050.
Zhongguo Yi Liao Qi Xie Za Zhi. 2021 Feb 8;45(1):26-31. doi: 10.3969/j.issn.1671-7104.2021.01.006.
In order to obtain the three-dimensional pulse information and blood pressure waveform needed in the study, a radial artery simulation platform with programmable controlled injection pump as the core was constructed by using the circulation theory of human cardiovascular system and pulse wave formation mechanism. Gaussian function model was selected to synthesize multi-type pulse wave to program and drive the platform. The three-dimensional pulse information and blood pressure waveform of the simulated radial artery were collected by binocular visual pulse detection system and pressure transmitter respectively, and the platform stability and repeatability were tested by Pearson correlation. The experimental results show that the radial artery simulation platform is stable, reliable and repeatable, and can generate multiple types of three-dimensional pulse information and blood pressure waveform at the simulated radial artery. The platform is simple in structure, low in cost, and produces many types of pulsating flow. It provides an experimental research platform for revealing the relationship between the three-dimensional pulse information of radial artery and the change of pressure inside the vessel, as well as the prediction of blood pressure waveform from the three-dimensional pulse information.
为获取研究所需的三维脉搏信息和血压波形，利用人体心血管系统循环理论和脉搏波形成机制，构建了以程控注射泵为核心的桡动脉模拟平台。选用高斯函数模型合成多类型脉搏波来对平台进行编程驱动。分别通过双目视觉脉搏检测系统和压力变送器采集模拟桡动脉的三维脉搏信息和血压波形，并通过皮尔逊相关性检验平台的稳定性和重复性。实验结果表明，桡动脉模拟平台稳定、可靠且可重复，能够在模拟桡动脉处生成多种类型的三维脉搏信息和血压波形。该平台结构简单、成本低廉，能产生多种类型的脉动流。它为揭示桡动脉三维脉搏信息与血管内压力变化之间的关系，以及从三维脉搏信息预测血压波形提供了实验研究平台。
