多参数肺功能测量系统的研制

Development of a Multi-parameter Pulmonary Function Test System

为了全面评估人体的呼吸、循环代谢等功能,用于诊断肺部疾病,研制了一款准确可靠肺功能测量系统(PFT)。系统分为硬件和软件两个部分,实现了呼吸、脉搏氧、二氧化碳、氧气等信号的采集,完成了肺功能系统实时绘制流量-容积曲线(FV曲线)、容积-时间曲线(VT曲线)、呼吸波形、脉搏波、二氧化碳及氧气波形,并对各个信号进行信号处理和参数计算。实验结果证明:该系统安全可靠、可以准确测量呼吸、代谢等人体基本功能,并提供可靠的参数,具有良好的应用前景。

To comprehensively evaluate the human body’s respiratory,circular metabolism and other functions,and to diagnose lung disease,an accurate and reliable pulmonary function test(PFT)is developed.The system is divided into two parts:hardware and software.It realizes the collection of respiratory,pulse oxygen,carbon dioxide,oxygen and other signals,and draws flow-volume curve(FV curve),volume-time curve(VT curve),respiratory waveform,pulse wave,carbon dioxide and oxygen waveform in real time on the upper computer of the PFT system,and conducts signal processing and parameter calculation for each signal.The experimental results prove that the system is safe and reliable,it can accurately measure the basic functions of human body,and provide reliable parameters,and has good application prospects.