“搭桥术”在数字减影机球管上的应用  

Application of "Bypass" in the Tube of Digital Subtraction Angiography

作　　者：穆兴国[1] 国志义[1] 张翎[2] 朱士启 

机构地区：[1]吉林大学第二医院放射科,吉林长春130041 [2]东北师范大学附属医院内科,吉林长春130021 [3]吉林省白城市321医院放射科,吉林白城137000

出　　处：《中国医疗设备》2009年第3期93-93,98,共2页China Medical Devices

摘　　要：数字X线减影机(简称DSA)核心部件是X线球管,它有大小两个焦点。在日常工作中,小焦点的工作时间远大于大焦点。因此小焦点灯丝容易熔断。依据DSA安全保护设计,小焦点一旦熔断,整机无法使用,只有更换球管。因此我们采用"搭桥技术"和调整软件参数,使报废球管重新使用。The X - ray tube is the key component of X-DSA （DSA）, which has a small focus and a big focus. In daily work, the working time of the small focus is much more than the big focus. Thus the filament of Small focus is easy to fuse. Based on the design of DSA security protection, once the filament of small focus is fused, then the X-DSA will not work until replacing the X-ray tube. Therefore, we Used ＂bridging technology＂ and changed some software parameters, the X-DSA then worked again.

关 键 词：X数字减影机 小焦点 大焦点 X线管 

分 类 号：TH774[机械工程—仪器科学与技术]