CT在使用前期阶段的可靠性数据分析  

Reliability Data Analysis of CT in the Early Stage of Use

作　　者：李东[1] 吴萍[1] 张文龙 董硕[1] 花城 荣瑶[1] 吴航[1] LI Dong;WU Ping;ZHANG Wenlong;DONG Shuo;HUA Cheng;RONG Yao;WU Hang(Department of Medical Engineering,Xuanwu Hospital Capital Medical University,Beijing 100053,China)

机构地区：[1]首都医科大学宣武医院医学工程处,北京100053

出　　处：《中国医疗设备》2024年第12期8-11,21,共5页China Medical Devices

基　　金：工业和信息化部产业技术基础公共服务平台项目(2021-0179-1-1)。

摘　　要：目的分析CT设备在使用中的可靠性数据,健全设备可靠性分析评价指标的理论框架,探索设备可靠性评价的实践方法,为不同CT设备间性能对比提供实用的参考方案。方法以新启用CT设备前2年数据为对象,依据可靠性理论构建性能对比框架。根据设备厂商提供的工单维修记录,统计比较单台CT设备装机后第1年、第2年与前2年工单中与可靠性、维护性和保障性参数相关的数据,以及比较装机后第1年、第2年的维修时长、故障时长和维修间隔。结果设备装机后第1年、第2年、前2年的各项可靠性参数表现优良程度依次为第1年、前2年、第2年。第2年维修时长和故障时长较第1年有所增加,维修间隔较第1年缩短,但差异无统计学意义(P>0.05)。CT设备在装机后前2年整体运行状态较为平稳,第2年略有下降。结论本研究建立的维修数据分析和评价体系可为提高设备可靠性提供参考信息,为不同CT设备间性能对比提供参考方案,推动CT技术持续进步及行业标准化。Objective To analyze the reliability data of CT equipment in use,improve the theoretical framework of equipment reliability analysis and evaluation indicators,explore practical methods for equipment reliability evaluation,to provide practical reference solutions for performance comparison between different CT equipment.Methods Based on the data of the first two years of the newly commissioned CT equipment,the performance comparison framework was constructed according to the reliability theory.According to the maintenance records provided by the equipment manufacturer,the data related to the reliability,maintainability and supportability parameters in the work order of the first year,the second year and the first two years after the installation of a single CT equipment were statistically compared.And the maintenance time,fault time and maintenance interval of the first year and the second year after the installation were compared.Results The reliability parameters of the equipment in the first year,the second year,and the first two years after the installation showed excellent performance in the following order:the first year,the first two years,and second year.The maintenance time and fault time in the second year were longer than those in the first year,and the maintenance interval was shorter than that in the first year,but the difference was not statistically significant(P>0.05).The overall operation status of CT equipment was relatively stable in the first two years after installation,and decreased slightly in the second year.Conclusion The maintenance data analysis and evaluation system established in this study can provide reference information for improving equipment reliability,provide reference solutions for performance comparison between different CT equipment,which can promote the continuous progress of CT technology and industry standardization.

关 键 词：CT 可靠性 可用度 可达可用度 固有可用度 平均故障间隔 

分 类 号：R197.39[医药卫生—卫生事业管理]