摘要
作者根据人体动脉脉搏波传输的生物力学原理,设计和研制了包括心功能常用指标在内的一台雏型脉搏波传输检测系统.对设计过程中出现的基本问题,如传感器的定位、消除人为误差及多道传感器频响的一致性等进行探讨,并介绍了传感器的加压系统、静态和动态特性的补偿及多路微弱信号放大和数据存储.通过对正常和某些患心血管疾病的人体测试,表明该仪器设计合理,提供具有临床意义的参数较多.该系统具有一定的开拓性,而且它对脉搏波时域和频域分析得到的一些参数,有助于某些心脏病发生和发展的诊断和预测.
A prototype device for measuring hemodynamic parameters and evaluating heart function has been developed on the basis of the theory of pressure pulse wave transmission in human arterial system. Such practical problems have been solved as location of sensors, diminuation of artificial error and coordination of frequency response in multichannel sensor. Meanwhile, supplement of static and dynamic characteristics with fixed pressure to the sensors was analyzed and the approach to amplification of multichannel faint signal and data reservation were discussed. Some significant parameters the device has provided such as the time domain and frequency domain analysis of the pressure pulse wave, can help to predict the occurrence and development of certain heart diseases.
关键词
脉搏
动脉硬化
诊断
诊断仪
Detection instrument of pulse wave transmission/instrum
Pulse/instrum
Arteriosclerosis/diag
