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GE CT机误操作引起机器故障汇总

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发表于 2020-10-19 23:20:06 | 显示全部楼层 |阅读模式

                    

                    

                    
                    
                    <p><img data-type="gif" src="http://mmbiz.qpic.cn/mmbiz_gif/dx3KibwtDhvc6YBndBzrYvfAVPCGNAlsqB9f7SjRnXkibcO3P2CSjz7TnOO8RAArOGOjobic1D5DCTCzzAoxv9jfw/0?wx_fmt=gif" data-ratio="0.1703125" data-w="640"  /></p><p style="text-align:justify;padding: 20px 25px; font-size: 12px; font-family: 宋体; color: rgb(68, 68, 68); line-height: 24px; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 14px; line-height: 2;">&nbsp;1&nbsp;误操作引起的故障</span></p><p style="text-align:justify;padding: 20px 25px; font-size: 12px; font-family: 宋体; color: rgb(68, 68, 68); line-height: 24px; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 14px; line-height: 2;"></span><span style="font-size: 14px; line-height: 2;">&nbsp;&nbsp;&nbsp;&nbsp;1.1&nbsp;&nbsp;故障现象一</span><br style="font-size: 14px;"  /><span style="font-size: 14px; line-height: 2;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;机器无法工作,扫描架不转,开关几次依旧。</span><br style="font-size: 14px;"  /><span style="font-size: 14px; line-height: 2;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;根据扫描架上的指示灯提示,是机器被紧急停机。后发现是床边紧急开关不小心被按下,造成此假故障。按起床边紧急停机开关,按控制台键盘上的复位键后恢复正常。</span><br style="font-size: 14px;"  /><span style="font-size: 14px; line-height: 2;">&nbsp;&nbsp;&nbsp;&nbsp;分析:床边的紧急停机开关,容易被误操作,机器不工作应先检查是否有紧急停机开关按下。</span><br style="font-size: 14px;"  /><span style="font-size: 14px; line-height: 2;">&nbsp;&nbsp;&nbsp;&nbsp;1.2&nbsp;&nbsp;故障现象二</span><br style="font-size: 14px;"  /><span style="font-size: 14px; line-height: 2;">&nbsp;&nbsp;&nbsp;&nbsp;无法照相,在FILM&nbsp;COMPOSER窗口中按PRINT时报错。发现在FILMCOMPOSER窗口上方的DICOM显示变为LASER&nbsp;CAMERA点LASER&nbsp;CAMERA这行字发现可以选择LASTERCAMERA或DICOM。选回DICOM仍不能照相。只有SHUT&nbsp;DOWN&nbsp;APPLICATION在RECONFIG里重设CAMERA参数,重启后,在BROWSER里的QUEUE菜单中把NETWORK和FILMING里的排序照片都删掉。至此照相正常。</span><br style="font-size: 14px;"  /><span style="font-size: 14px; line-height: 2;">&nbsp;&nbsp;&nbsp;&nbsp;分析:原因可能是因为在照片操作过程中医生很容易用鼠标点到DICOM并改成LASTER&nbsp;CAMERA,即使重新改为DICOM后DICOM参数也会丢失,这是程序的一个缺陷。不过这个缺陷,在程序升级到6.0后可完全解决。</span><br style="font-size: 14px;"  /><span style="font-size: 14px; line-height: 2;">&nbsp;&nbsp;&nbsp;&nbsp;1.3&nbsp;&nbsp;故障现象三</span><br style="font-size: 14px;"  /><span style="font-size: 14px; line-height: 2;">&nbsp;&nbsp;&nbsp;&nbsp;扫描图像很差。</span><br style="font-size: 14px;"  /><span style="font-size: 14px; line-height: 2;">图像差开始怀疑可能是球管问题,先准备做校正。但根据观察,CT仅仅在做头部一个协议扫描时图像差,检查参数设置,发现此协议竟用的BONT重建,而不是用的STAND+。改后再扫图像正常。</span><br style="font-size: 14px;"  /><span style="font-size: 14px; line-height: 2;">&nbsp;&nbsp;&nbsp;&nbsp;分析:可能是操作人员误改了此参数。</span></p><p style="text-align:justify;padding: 20px 25px; font-size: 12px; font-family: 宋体; color: rgb(68, 68, 68); line-height: 24px; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 14px; line-height: 2;">&nbsp;2&nbsp;&nbsp;机器硬件故障</span><br style="font-size: 14px;"  /><span style="font-size: 14px; line-height: 2;">&nbsp;&nbsp;&nbsp;&nbsp;2.1&nbsp;&nbsp;故障现象一</span><br style="font-size: 14px;"  /><span style="font-size: 14px; line-height: 2;">&nbsp;&nbsp;&nbsp;&nbsp;RAWDATA硬盘坏,故障现象为:开机系统自检报HINV和NPR错,重装系统后正常。但一月后又出现同样的故障现象,有时候也报RAWDATA&nbsp;DISK错,且故障发生越来越频繁,总是重装系统解决问题。</span><br style="font-size: 14px;"  /><span style="font-size: 14px; line-height: 2;">&nbsp;&nbsp;&nbsp;&nbsp;分析与维修:怀疑NPR部分有接触不良,或有部件软故障。于是把NPR的5块电路板换到同型号的机器上去试,结果没有发现哪块电路板有明显的故障,只有装回。仔细分析故障现象,总是通过重装系统解决问题,难道软件有问题,也可能是硬盘有坏道,但无从判断。后来发现有时候重装系统也不能解决,非要格式化硬盘再重装才行。根据开机有时也报RAWDATA&nbsp;DISK错,换了RAWDATA硬盘,故障再没出现。</span><br style="font-size: 14px;"  /><span style="font-size: 14px; line-height: 2;">&nbsp;&nbsp;&nbsp;&nbsp;2.2&nbsp;&nbsp;故障现象二</span><br style="font-size: 14px;"  /><span style="font-size: 14px; line-height: 2;">&nbsp;&nbsp;&nbsp;&nbsp;SGI主板坏,故障现象为:开机黑屏,一会儿显示器显示NO&nbsp;SIGNAL,没有听到OC继电器的吸合声。</span><br style="font-size: 14px;"  /><span style="font-size: 14px; line-height: 2;">&nbsp;&nbsp;&nbsp;&nbsp;分析与维修:很明显整个计算机部分没有启动。排除显示器的问题后,重点查找SGI。由于SGI高度集成。整个系统只有几块电路。显卡网卡都集成在主板上,另外就是一块CPU板和6根内存条(和一般的计算机很类似),首先测量输入电源是否正常,电源正常。然后检查是否有CPU和内存接触不好,重新拔插,并且只插2根内存条,开机还是没有反应。CPU一般不容易坏,内存换其他的几根试故障依旧,内存应该不会都坏。看来是SGI主板坏了。用放大镜仔细观察主板,发现在内存条插槽最靠近主板芯片的那一部分,插槽下和电路板的接触部分,在几百个焊脚之间有些似乎有层薄薄的锡雾。细致清理锡雾。装好开机,故障排除。但不明白,为什么使用2年后才出故障。估计其他PROSPEED型号CT的SGI主板也许会有类似问题。在此供参考。</span><br style="font-size: 14px;"  /><span style="font-size: 14px; line-height: 2;">&nbsp;&nbsp;&nbsp;&nbsp;2.3&nbsp;&nbsp;故障现象三</span><br style="font-size: 14px;"  /><span style="font-size: 14px; line-height: 2;">&nbsp;&nbsp;&nbsp;&nbsp;OGP板芯片接触不良,故障现象为:开机进入桌面,报OGP错。无法WARM&nbsp;</span><br style="font-size: 14px;"  /><span style="font-size: 14px; line-height: 2;">UP,无法扫描。</span><br style="font-size: 14px;"  /><span style="font-size: 14px; line-height: 2;">&nbsp;&nbsp;&nbsp;&nbsp;根据故障提示查找OGP部分,拆开扫描架在TGP板上手动操作,观察指示灯。没发现异常。拆开OGP板,测量OGP板输入电源,正常。按紧OGP上的芯片,插线。再开机,机器恢复正常。估计故障原因是OGP上的CPU芯片接触不良。</span><br style="font-size: 14px;"  /><span style="font-size: 14px; line-height: 2;">&nbsp;&nbsp;&nbsp;&nbsp;2.4&nbsp;&nbsp;故障现象四</span><br style="font-size: 14px;"  /><span style="font-size: 14px; line-height: 2;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;制服放大板故障。故障现象为:开机进入桌面,报SERV&nbsp;AMP错。扫描架不转。有时可以做病人但扫描一半就停机。</span><br style="font-size: 14px;"  /><span style="font-size: 14px; line-height: 2;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;根据故障现象拆开扫描架,拆开制服放大部分。竟然发现电路板上有老鼠尿。拆下电路板,用酒精仔细清洗。然后用电吹风吹干,装上后,开机正常。</span></p><p style="max-width: 100%; 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