呼吸机空气氧气混合及气路控制工作原理及常见故障分析  

Analysis on working principle and common fault of air-oxygen mixing and air path control of ventilator

作　　者：刘庆涛 张慧勇 Liu Qingtao;Zhang Huiyong(Office of Affairs,Qingdao Central Hospital,Qingdao 266033,China;The First Office of Teaching and Researching of Public Fundamental Course,Shandong Qingdao Health School,Qingdao 266071,China)

机构地区：[1]青岛市中医医院医院办公室,青岛266033 [2]山东省青岛卫生学校公共基础一教研室,青岛266071

出　　处：《中国医学装备》2025年第1期158-161,共4页China Medical Equipment

摘　　要：呼吸机是危重症患者救治的重要医疗设备之一,随着医疗技术的不断发展,呼吸机的结构性能趋于精密化,设备的日常维护和维修保障更加重要。空气氧气混合是呼吸机气体供给的重要组成模块,结构上分为空气接入通路、氧气接入通路和空气氧气混合增压部分,气路控制的功能是气体流量和压力的控制,是保障安全通气的基础,包括流量控制系统和安全阀系统。结合呼吸机临床应用实际,从维护维修的重点内容着手,分析呼吸机空气氧气混合及气路控制的工作原理,总结常见故障的维修方法,以期为呼吸机的临床服务能力提供技术保障。Ventilator is one of important medical equipment for the treatment of patients with critically ill.With the continuous development of medical technology,the structural performance of ventilators tends to be more precision,and the daily maintenance and repair of equipment become more important.Air-oxygen mixing is an important module of gas supply of ventilator,which structure includes access pathway of air,access pathway of oxygen and a pressurization section of air-oxygen mixing.The function of air path control is controlling air flow volume and pressure,which is basis of ensuring safe ventilation,and which includes both flow volume control system and safety valve system.Combined with the actually clinical application of ventilator,the working principles of air-oxygen mixing and air path control of the ventilator were analyzed and the maintenance methods of common faults were summarized from the key components of maintenance and repair,so as to improve the clinical service capability of ventilator equipment and the management level of hospital.

关 键 词：呼吸机 空氧混合 氧气通路 空气通路 控制阀 流量传感器 

分 类 号：R318.6[医药卫生—生物医学工程]