呼吸机吸气氧浓度误差分析  

Analysis of FiO_2 Errors of the Ventilator

作　　者：谢莹莹[1] 谢申菊[1] 张晓斌[1] 何文胜[1,2] 

机构地区：[1]安徽医科大学第一附属医院医学工程部,安徽合肥230022 [2]安徽医科大学生命科学学院生物医学工程系,安徽合肥230032

出　　处：《中国医疗设备》2016年第7期119-120,123,共3页China Medical Devices

基　　金：安徽省高校省级自然科学研究项目(KJ2012A154)

摘　　要：呼吸机各部件不同程度的老化都会导致呼吸机氧浓度的输出值与示值产生差异,这种差异会给临床诊疗带来误判。为深入了解这种差异的产生原因,本文使用配对检验方法分析了呼吸机的输出误差和示值误差的差异,同时使用卡方检验比较了输出合格率和示值合格率的差异。统计结果发现:输出氧浓度设定为100%、80%、60%、40%、21%时,输出误差显著<示值误差(P<0.05),但这两种合格率没有显著性差异(P=0.056)。结果表明,随着使用时间的增加,呼吸机氧浓度的示值会发生更大偏差。The functional degradation of different parts of the ventilator can result in disagreement between the output value and the indication value, which will mislead medical staff in making wrong decisions in clinical diagnosis and treatment. The paired test and chi-square test were used in this paper respectively for analysis of the difference between output errors and indication errors and comparison of the difference between the output qualified rate and indication qualified rate, which was intended to have a profound understanding of the causes of differences. According to the statistical results, the output error was remarkably less than the indication error（output oxygen concentration = 100%, 80%, 60%, 40% and 21% respectively, P0.05）, but there was no significant difference between two qualified rates（P=0.056）. The results showed that, as the use time of the ventilator increased, greater deviations in Fi O2（Fraction of Inspiration O2） would be generated.

关 键 词：呼吸机 吸气氧浓度 示值误差 输出误差 

分 类 号：R197.39[医药卫生—卫生事业管理]