摘要
目的探讨故障树分析(Fault Tree Analysis,FTA)对硬镜故障分析应用的效果。方法回顾分析本院2个阶段(2019—2021年和2022—2023年)硬镜故障维修单,第一阶段经统计汇总47例,第二阶段经统计汇总10例,第一阶段运用FTA建立硬镜故障树模型,进行定性和定量分析,计算顶事件发生概率,以相同方法计算出第二阶段顶事件发生概率。结果通过硬镜故障树模型确定其函数T,通过定性分析获得28个最小割集,通过定量分析计算出顶事件发生的概率P(T)=0.22568116,计算出各个基本事件的重要度系数,分析找到对顶事件影响最大的十个基本事件,制定医疗器械质量管理方案,使原先22.57%的故障率降低至5.87%。结论FTA可有效应用于硬镜故障诊断,针对基本事件进行改进,从而降低器械故障率,减少维修成本,并显著延长硬镜使用寿命。
Objective To explore the effect of fault tree analysis(FTA)on hard mirror fault analysis.Methods Retrospectively analyzed the repair order of hard mirror fault in our hospital from 2019-2021 and 2022-2023.After statistical summary of 47 cases,the hard mirror fault tree model was established by FTA,and its qualitative and quantitative analysis was conducted.Results The function T was determined by hard mirror fault tree model,28 minimum cut sets were obtained by qualitative analysis,the probability P(T)=0.22568116 was calculated by quantitative analysis,and the importance coefficient of each basic event was calculated.The ten basic events that had the greatest impact on the top event were analyzed and the quality management plan for medical devices was formulated.The failure rate was reduced from 22.57%to 5.87%.Conclusion FTA can be effectively applied to hard mirror fault diagnosis,which can improve the basic events,reduce the failure rate,reduce the maintenance cost,and significantly extend the service life of hard mirror.
作者
乔中权
刘胜
季翠娥
QIAO Zhongquan;LIU Sheng;JI Cuie(Department of Medical Engineering,Huzhou Hospital of Traditional Chinese Medicine,Zhejiang Chinese Medicine University,Huzhou Zhejiang 313000,China)
出处
《中国医疗设备》
2025年第6期170-175,共6页
China Medical Devices
关键词
硬镜
故障树模型
定性分析
定量分析
医疗器械
质量管理
hard mirror
fault tree model
qualitative analysis
quantitative analysis
medical devices
quality control
