基于非齐次泊松过程的磁共振成像设备可靠性分析  

Reliability Analysis of Magnetic Resonance Imaging Equipment Based on Non-homogeneous Poisson Process

作　　者：储呈晨 李斌 CHU Chengchen;LI Bin(Hospital Management Research Center,Shanghai Jiao Tong University Affiliated Sixth People’s Hospital,Shanghai,200233;Shanghai Medical Equipment Management and Quality Control Center,Shanghai,200233)

机构地区：[1]上海交通大学附属第六人民医院医院管理研究中心,上海市200233 [2]上海市医疗设备器械管理质量控制中心,上海市200233

出　　处：《中国医疗器械杂志》2020年第6期558-561,564,共5页Chinese Journal of Medical Instrumentation

基　　金：国家重点研发计划项目(2018YFC0115803);国家重点研发计划项目(2016YFC0106803)。

摘　　要：为了评价不同品牌磁共振成像系统质量,优化磁共振成像设备维修维护质量管理,保障其临床使用质量和安全,并利用磁共振报修系统采集的故障失效时间大数据,研究磁共振成像设备可靠性评估模型。该文利用某一品牌磁共振近两年的故障数据,应用统计判断准则,选择合适的统计分布模型,最终拟合出基于非齐次泊松过程的设备可靠性评估模型,进而得到磁共振成像设备累积故障强度函数、磁共振成像设备故障密度函及平均无故障工作时间等可靠性评价指标。根据计算出的可靠性指标,一方面可评价某品牌型号磁共振成像设备的系统可靠性质量,继而评价不同品牌磁共振成像设备质量,另一方面可帮助医院设备管理者开展磁共振成像设备的运行优化、维修策略制定和安全管理等工作。In order to evaluate the quality of different brands of magnetic resonance imaging system,optimize the quality of equipment repair and maintenance,and ensure the quality and safety of the equipment in clinical use.Meanwhile build the reliability evaluation model of magnetic resonance imaging equipment based on the large failure data collected by magnetic resonance repair system.In this paper,using the fault data of a certain brand of magnetic resonance in the past two years,applying the statistical judgment criterion,selecting the appropriate statistical distribution model,and finally fitting the equipment reliability evaluation model based on the non-homogeneous Poisson process,and then obtaining the magnetic resonance imaging equipment.Reliability evaluation indicators such as cumulative fault strength function,magnetic resonance imaging equipment fault density function,and mean time between failures.According to the calculated reliability index,on the one hand,it can evaluate the system reliability quality of a certain brand of magnetic resonance imaging equipment,and then evaluate the quality of different brands of magnetic resonance imaging equipment,on the other hand,it can help hospital equipment managers to carry out operational optimization,maintenance strategy development and safety management of magnetic resonance imaging equipment.

关 键 词：磁共振成像设备 可靠性 平均无故障工作时间 

分 类 号：R197.39[医药卫生—卫生事业管理]