模仿呼吸时肺通气试验装置的研制  

Research and Development of the Experimental Device for Simulating Respiratory Lung Ventilation

作　　者：严甜 袁越阳 

机构地区：[1]江苏省医疗器械检验所,江苏南京225300 [2]苏州市凯迪医学科技有限公司,江苏苏州215163

出　　处：《自动化仪表》2016年第12期37-39,44,共4页Process Automation Instrumentation

摘　　要：机械通气是支持和拯救患者生命的重要方式之一。在实行通气临床应用之前,对设备的参数和性能的测定是保证试验更具安全性和可行性的前提。为了建立能够模仿呼吸时肺通气情况的装置来替代活体肺通气作为通气试验对象,以动物肺为肺通气模型核心,采用数据处理和驱动控制,研制了一款通过驱动针筒活塞模仿呼吸肌做功产生吸、呼气流对肺通气模型进行通气的试验装置。通过比较新鲜羊肺为肺通气模型模仿呼吸试验输出的气流波形与实测人体呼吸气流波形,证明了所建试验装置的通气气流波形特征与实测人体呼吸气流波形特征相一致。Mechanical ventilation is one of the important ways to support and save the lives of patients. Before carrying out the clinical application of ventilation, to ensure that the test is more safe and feasible, the prerequisite is determining the parameters and performance of equipment. In order to build the device that can emulate respiratory lung ventilation to substitute living lung ventilation, the lung of animal is used as the model kernel of the lung ventilation; through data processing and driving control, an experimental device for ventilation is developed. In this device, the syringe piston is driven to emulate the acting of respiratory muscle, for producing the airflow of suction and exhalation ; then the lung ventilation model is ventilated. The experiment is conducted using fresh sheep lung, the output waveform is compared with the waveform of the measured human respiratory airflow ; the result indicates that the features of ventilation airflow waveform of experimental device built are consistent with the features of measured respiratory airflow waveform of human body.

关 键 词：传感器 医疗器械 机械通气 肺通气 通气模型 标定 光电隔音 流量 

分 类 号：TH6[机械工程—机械制造及自动化] TP3[自动化与计算机技术—计算机科学与技术]