中国医学工程2026，Vol.34Issue(4)：1-6,6.DOI:10.19338/j.issn.1672-2019.2026.04.001
医用电子直线加速器故障不良事件分析及维保策略研究
Failure adverse events and maintenance strategy for medical linear accelerators
摘要
Abstract
[Objective]To reveal the fault patterns of medical electronic linear accelerators(LAs)from different brands,quantify the correlation among"usage intensity,service life,and failure rate",and provide corresponding strategies for equipment management.[Methods]A total of 310 fault reports from May 2023 to July 2024 were statistically analyzed.Comparisons were made on fault types,fault frequencies,and corresponding disposal methods among different brands.Poisson regression and negative binomial regression were used to establish models between monthly treatment volume,service life,and multi-leaf collimator(MLC)wear rate,as well as head/gantry motion fault frequency.[Results]Faults in the MLC and motion systems were the most common types,and component replacement was the main method to resolve these faults.The average monthly number of treatments significantly affected the frequency of these two types of faults,and service life showed a tendency to positively affect MLC faults.[Conclusion]These data can provide data support for the daily maintenance,fault risk control,and equipment management of LA.关键词
医用电子直线加速器/多叶光栅故障/失效分析/设备管理Key words
medical linear accelerator/multi-leaf collimator failure/fault analysis/equipment management分类
医药卫生引用本文复制引用
邝雅婷,林裕达,林茂盛,黄思娟,黄晓延,杨鑫..医用电子直线加速器故障不良事件分析及维保策略研究[J].中国医学工程,2026,34(4):1-6,6.基金项目
北京市希思科临床肿瘤学研究基金(Y-Young2024-0538,Y-Young2023-0156) （Y-Young2024-0538,Y-Young2023-0156）
中山大学-国科离子(兰州泰基)放射治疗前沿技术联合实验室基金(HT-99982024-0350) （兰州泰基）
国家自然科学基金(12275372) （12275372）
