模拟人体生物肺正压通气系统设计与仿真研究

Design and simulation study of positive pressure ventilation system in a simulated human biological lung

模拟人体生物肺是医务人员掌握和练习新型肺部介入诊疗器械的重要途径之一,在正压通气模式下其通气效果研究对临床通气治疗有着指导作用。为解决模拟人体生物肺在正压通气模式下参数配置复杂、气压和气流波形呈现缓慢等缺点,本文以模拟人体生物肺为研究对象,建立电学仿真通气模型。在压力调节容积控制(PRVC)正压通气模式下,进行仿真通气实验,将仿真所获取的通气波形与正常成人的通气波形进行比较分析。实验结果表明,在PRVC正压通气模式下,主要参考指标潮气量值的平均误差为9.8%,能有效模拟正常成人的通气效果。可见,所建立的电学仿真通气模型具有可行性,为模拟人体生物肺正压通气实验平台的进一步研究提供了条件。

Simulation of the human biological lung is a crucial method for medical professionals to learn and practice the use of new pulmonary interventional diagnostic and therapeutic devices.The study on ventilation effects of the simulation under positive pressure ventilation mode provide valuable guidance for clinical ventilation treatment.This study focused on establishing an electrical simulation ventilation model,which aims to address the complexities in parameter configuration and slow display of air pressure and airflow waveforms in simulating the human biological lung under positive pressure ventilation mode.A simulated ventilation experiment was conducted under pressure-regulated volume control(PRVC)positive pressure ventilation mode,and the resulting ventilation waveform was compared with that of normal adults.The experimental findings indicated that the average error of the main reference index moisture value was 9.8%under PRVC positive pressure ventilation mode,effectively simulating the ventilatory effect observed in normal adults.So the established electrical simulation ventilation model is feasible,and provides a foundation for further research on the simulation of human biological lung positive pressure ventilation experimental platform.