Siemens 64排CT机疑似球管的高压故障维修两例  

Two Cases of Siemens 64-Slice CT Machine Suspected Ball Tube High-Voltage Fault Maintenance

作　　者：石树强[1] 袁洪 赵坚 黄玉林 SHI Shuqiang;YUAN Hong;ZHAO Jian;HUANG Yulin(Department of Equipment,Wangjing Hospital,Chinese Academy of Chinese Medical Sciences,Beijing 100102,China;Department of Equipment,Shunyi District Hospital,Beijing 101300,China)

机构地区：[1]中国中医科学院望京医院设备处,北京100102 [2]北京市顺义区医院器械科,北京101300

出　　处：《中国医疗设备》2020年第5期171-174,共4页China Medical Devices

摘　　要：Siemens 64排CT机为现阶段医院常用的一种检查设备。本文通过分析高压发生器的基本工作原理与球管的基本结构,解读了两例CT机疑似球管发生故障的案例,经过分析排查发现,故障分别为逆变器电容损坏、旋阳驱动板快间的导热硅脂缺乏,及时进行更换电容、重新涂抹导热硅脂后的CT机恢复正常工作。本文提到的故障排查方法能有效避免贸然更换球管的情况,为医院节约了维修成本。该故障排查方法也可用于其他疑似高值医疗设备备件发生故障时的排查,减少更换备件造成的损失。Siemens 64-slice CT machine is a common inspection equipment in hospitals at the present stage.By analyzing the basic working principle of the high voltage generator and the basic structure of the ball tube,two cases of suspected ball tube failure in CT machine were interpreted in this paper.After analysis and troubleshooting,we found that the faults were the damage of the inverter capacitance,the lack of thermal silicone grease between the rotating positive drive board,and the CT machine returned to normal operation by timely replacing the capacitance and reapplying the thermal silicone grease.The troubleshooting method mentioned in this paper can effectively avoid the occurrence of sudden replacement of the ball tube and save the maintenance cost for the hospital.This troubleshooting method can also be used for troubleshooting other suspected high-value medical equipment spare parts in case of failure,to reduce the loss caused by replacement of spare parts.

关 键 词：计算断层扫描诊断系统 球管 高压故障 旋转阳极 高压逆变 故障排查 

分 类 号：R197.39[医药卫生—卫生事业管理] TH774[医药卫生—公共卫生与预防医学]