某院瓦里安EDGE型直线加速器运行7年 故障统计分析

刘帅蓬; 孔凡洋; 张征; 郑光召; 郭跃信; 韩滨

doi:10.3969/j.issn.1674-1633.20241079

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中国医疗设备 ›› 2025, Vol. 40 ›› Issue (4) : 177-182. DOI: 10.3969/j.issn.1674-1633.20241079

设备维修

某院瓦里安EDGE型直线加速器运行7年故障统计分析

刘帅蓬,孔凡洋,张征,郑光召,郭跃信,韩滨

作者信息 +

Analysis of Failures in the Operation of the Varian EDGE Linear Accelerator at a Hospital over Seven Years

LIU Shuaipeng, KONG Fanyang, ZHANG Zheng, ZHENG Guangzhao, GUO Yuexin, HAN Bin

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摘要

目的分析某医院瓦里安EDGE型直线加速器2017—2023年的运行和故障维保记录,探寻该类加速器的故障特性和规律,以期在后续使用中提高设备维修效率,降低停机时间,为同类设备的使用及维护管理提供参考｡方法根据瓦里安Truebeam平台软硬件系统,参考瓦里安随机附带的技术手册及设备内部软件系统框图,结合系统故障代码ID和硬件结构,本研究尝试提出一种系统模块的故障分类方法,将故障分为:(Ⅰ)STN(Stand Node Subsystem)模块故障;(Ⅱ)BGM(Beam Generation and Monitoring Subsystem)模块故障;(Ⅲ)COLL(Collimation Subsystem) 模块故障;(Ⅳ)XI(X-Ray image Subsystem)模块故障;(Ⅴ)PU(Positioning Unit System Subsystem)模块故障;(Ⅵ)COUCH(Couch Subsystem)模块故障;(Ⅶ)SAFETY相关模块故障;(Ⅷ)COLLING相关模块故障; (Ⅸ)WS(Work Station & Software)相关模块故障｡通过对故障数据的统计分析,总结故障类型､发生频率､维修策略及预防措施｡结果故障分布具有时间规律性,设备开机阶段故障率较高;季度负荷量在4000~12000人次间故障率与设备负荷量呈正相关｡COLL故障占比最高,尤其是多叶光栅(Multi-Leaf Collimator,MLC)相关故障｡此外,机械磨损和电气故障是导致部件更换的主要原因｡结论瓦里安EDGE型直线加速器设备性能输出平稳,是一台成熟的加速器设备,设备在开机阶段故障率最高｡Ⅲ类COLL系统故障占比最高,此类故障中MLC故障较多,维保时应重点关注｡机械磨损和电气故障是导致设备需要更换零部件的主要原因,须定期检查关键部件状态｡叶片马达､叶片Nut等常规零备件应在设备使用现场保留,以提高设备维保效率｡

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.

导出引用

刘帅蓬, 孔凡洋, 张征, 等. 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 https://doi.org/10.3969/j.issn.1674-1633.20241079

LIU Shuaipeng, KONG Fanyang, ZHANG Zheng, et al. Analysis of Failures in the Operation of the Varian EDGE Linear Accelerator at a Hospital over Seven Years[J]. China Medical Devices, 2025, 40(4): 177-182 https://doi.org/10.3969/j.issn.1674-1633.20241079

中图分类号： R197.39

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