[Objective]To discuss the malfunctions of medical linear accelerator(LA)in major brands,explore the strategies of failure risk control and provide ideas for daily equipment management.[Methods]A total of 94 malfunctions of LAs in two Varian and one Elekta from December 2022 to December 2023 were analyzed to compare the differences of failure types and disposals in different brands and service-lifes.[Results]The fault rate with the service life below one year was the highest(P＜0.05).The malfunctions in multi-leaf collimator and electronic acceleration system were significantly frequent than others(P＜0.05).Disposals in replacing components were significantly more than those in restarting or adjusting parameters(P＜0.05),and Varian replaced more components than Elekta(P＜0.05).[Conclusion]As a sophisticated equipment with high failure rates,LA should be paid more attention by promoting the abilities of repair and maintenance judgment of clinical engineers,thereby ensuring the equipment operation in clinical application.
关键词
医用电子直线加速器/故障分析/干预对策/维护管理
Key words
medical linear accelerator/malfunctions analysis/intervention measures/maintenance management
维普
万方数据