故障树分析法在医用电子直线加速器中的应用  

Application of fault tree analysis in medical electron linear accelerator

作　　者：刘洋 王科盛 任旗 凌丹 何倩鸿 李宇 苗青 李萌萌 LIU Yang;WANG Ke-sheng;REN Qi;LING Dan;HE Qian-hong;LI Yu;MIAO Qing;LI Meng-meng(College of Mechanical and Electrial Engineering,University of Electronic Science and Technology of China,Chengdu,611731,China;Shandong Xinhua Medical Equipment Co.,Ltd,Zibo 255086,Shandong Province,China)

机构地区：[1]电子科技大学机械与电气工程学院,成都611731 [2]山东新华医疗器械股份有限公司,山东淄博255086

出　　处：《医疗卫生装备》2019年第9期63-65,共3页Chinese Medical Equipment Journal

基　　金：国家重点研发计划(2017YFC0108400)

摘　　要：目的:对医用电子直线加速器专用加速管开展故障树分析,提高其核心部件的可靠性,降低整机故障率。方法:利用故障树分析法建立医用电子直线加速器专用加速管的故障树,并对其进行定性与定量分析。结果:通过对某公司电子枪灯丝断开等数据的分析,找到了医用电子直线加速器专用加速管的薄弱环节,提出了相应改进措施。结论:故障树分析法在医用电子直线加速器中的应用具有一定可行性,对行业内同类企业产品的可靠性分析具有借鉴意义。Objective To execute fault tree analysis on the acceleration tube of the medical electron linear accelerator so as to increase the reliability of its core components while decrease the fault rate. Methods A fault tree was established over the acceleration tube of the medical electron linear accelerator, which was analyzed qualitatively and quantitatively. Results The weaknesses of the acceleration tube of the medical electron linear accelerator were found by investigating the fault data of the electron gun of some company such as filament burn-out, and then some improvement countermeasures were put forward accordingly. Conclusion It’s feasible to apply fault tree analysis in medical electron linear accelerator, which might be used for the reliability analysis of similar products of peer companies.

关 键 词：放射治疗设备 医用电子直线加速器 专用加速管 故障树分析法 定性分析 定量分析 

分 类 号：R318.6[医药卫生—生物医学工程] TH774[医药卫生—基础医学]