应急救治呼吸机评价筛选指标研究  

Research on evaluation and screening indicator for emergency ventilators

作　　者：姚勤岐 唐明康 叶龙莹 张培培 王科盛 凌丹 何倩鸿 陈柱 YAO Qin-qi;TANG Ming-kang;YE Long-ying;ZHANG Pei-pei;WANG Ke-sheng;LING Dan;HE Qian-hong;CHEN Zhu(School of Mechanical and Electrical Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China;Department of Medical Engineering,West China Hospital of Sichuan University,Chengdu 610041,China)

机构地区：[1]电子科技大学机械与电气工程学院,成都611731 [2]四川大学华西医院医学工程科,成都610041

出　　处：《医疗卫生装备》2024年第7期8-16,共9页Chinese Medical Equipment Journal

基　　金：国家重点研发计划项目(2022YFC2407602,2022YFC2407601)

摘　　要：目的:为解决应急救治呼吸机可靠性评价筛选指标缺乏的问题,提出一种应急救治呼吸机评价筛选指标。方法:首先利用回归模型对呼吸机临床使用数据进行清洗,去除数据中的噪声以保证回归分析的精确度;然后基于曲线拟合和传递函数极点个数等方法确定吸气潮气量-患者分钟呼气量、峰值气道压力-患者分钟呼气量、峰值气道压力-吸气潮气量和PEEP(呼气末正压)-平均气道压力4组具有很强相关性的数据组合,并将4组数据组合理论输出和实际输出的差值作为判断呼吸机工作是否正常的指标;最后将该指标应用于单台和多台呼吸机,通过正常工作的呼吸机比例来判断提出指标的可行性。结果:单台呼吸机评价结果表明,4组数据组合输出的实际值和理论值拟合程度均较高,且4组数据组合输出差值均小于阈值;多台呼吸机评价结果表明,所有呼吸机中正常工作的比例为71.49%,与医院实际呼吸机正常工作的比例(72%)非常接近。结论:提出的应急救治呼吸机评价筛选指标具有可行性,可为应急救治系列设备的可靠性评价和筛选提供理论支撑。Objective To propose an evaluation and screening indicator for the reliability of emergency ventilators.Methods Firstly,a regression model was used to clean the data and remove noise to ensure the accuracy of regression analysis.Then,four groups of highly correlated data combinations,including inspiratory tidal volume-minute expiratory volume,peak airway pressure-minute expiratory volume,peak airway pressure-inspiratory tidal volume and positive end-expiratory pressure(PEEP)-mean airway pressure,were determined with the methods of curve fitting and transfer function,and the difference between the theoretical output and the actual output of the data combinations was regarded as an indicator to judge whether the ventilator functioned well or not;finally,the indicator proposed was applied to single and multiple ventilators,and the feasibility of the indicator was determined by the proportion of the ventilators functioning well.Results The evaluation results with a single ventilator showed the four groups of data combinations had the actual output fitted well with the theoretical output,and all the differences between the theoretical output and the actual output were lower than the threshold;the results with multiple ventilators indicated there were 71.49%ventilators functioning well,which was very close to the actual result that 72%ventilators behaved well.Conclusion The evaluation and screening indicator for emergency ventilators has high feasibility,and theoretical support is provided for reliability assessment and selection of series of emergency treatment equipment.[Chinese Medical Equipment Journal,2024,45(7):8-16]

关 键 词：呼吸机 可靠性评价 呼吸机评价 呼吸机筛选 应急救治设备 

分 类 号：R318.6[医药卫生—生物医学工程] TH777[医药卫生—基础医学]