中国医疗设备2025，Vol.40Issue(4)：177-182,6.DOI:10.3969/j.issn.1674-1633.20241079
某院瓦里安EDGE型直线加速器运行7年故障统计分析
Analysis of Failures in the Operation of the Varian EDGE Linear Accelerator at a Hospital over Seven Years
摘要
Abstract
Objective To analyze the operation and fault maintenance records of Varian EDGE linear accelerator in a hospital from 2017 to 2023,explore the fault characteristics and rules of this kind of accelerator,in order to improve the maintenance efficiency of equipment and reduce the downtime in subsequent use,and provide reference for the use and maintenance management of similar equipment.Methods According to the hardware and software system of Varian Truebeam platform,the technical manual attached with Varian and the internal software system block diagram of the device,combined with the system fault code ID and hardware structure,this study tried to propose a fault classification method of the system module,and the faults were divided into:(Ⅰ)STN(Stand Node Subsystem)module faults;(Ⅱ)BGM(Beam Generation and Monitoring Subsystem)module faults;(Ⅲ)COLL(Collimation Subsystem)module faults;(Ⅳ)XI(X-Ray image Subsystem)faults;(Ⅴ)PU(Positioning Unit System Subsystem)faults.(Ⅵ)COUCH(Couch Subsystem)faults;(Ⅶ)SAFETY related module faults;(Ⅷ)COLLING related module faults;(Ⅸ)WS(WorkStation&Software)related faults.Through statistical analysis of the fault data,the fault type,occurrence frequency,maintenance strategy and preventive measures were summarized.Results The fault distribution had time regularity and the failure rate was higher in the start-up stage.There was a positive correlation between the failure rate and the equipment load when the quarterly load was 4000-12000 person-time.COLL faults account for the highest proportion,especially Multi-Leaf Collimator(MLC)related faults.In addition,mechanical wear and electrical failures were the main causes of component replacement.Conclusion Varian EDGE linear accelerator is a mature accelerator with stable performance output and the highest failure rate during startup.Class Ⅲ COLL system has the highest proportion of faults,and MLC faults are more in this kind of faults,which should be paid attention to when maintaining.Mechanical wear and electrical failure are the main reasons for the need to replace parts of the equipment,and the status of key components must be checked regularly.Conventional spare parts,such as blade motors and blade nuts,should be reserved on site to improve equipment maintenance efficiency.关键词
EDGE型直线加速器/故障率/故障维修/负荷量/多叶光栅/模块故障Key words
EDGE linear accelerator/failure rate/fault maintenance/load capacity/multi-leaf grating/module failure分类
医药卫生引用本文复制引用
刘帅蓬,孔凡洋,张征,郑光召,郭跃信,韩滨..某院瓦里安EDGE型直线加速器运行7年故障统计分析[J].中国医疗设备,2025,40(4):177-182,6.基金项目
河南省医学科技攻关计划项目(LHGJ20230227). （LHGJ20230227）
