延长CT机球管寿命的十点经验

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                    <p><strong style="white-space: normal; max-width: 100%; color: rgb(68, 68, 68); font-family: 宋体; line-height: 28px; text-align: justify; word-wrap: break-word !important; box-sizing: border-box !important;"><img src="http://mmbiz.qpic.cn/mmbiz/cNuNdEZ2BK7eIOv9Picyop7PMgk4WxqGic2j5DxUL3wUSibm7NHtElM54LKicnibUXq4tOGwibRI4usKjpCZN6JKgQkQ/0" data-ratio="0.11857707509881422" data-w="" width="auto" src="http://mmbiz.qpic.cn/mmbiz/cNuNdEZ2BK7eIOv9Picyop7PMgk4WxqGic2j5DxUL3wUSibm7NHtElM54LKicnibUXq4tOGwibRI4usKjpCZN6JKgQkQ/0" style="word-wrap: break-word !important; box-sizing: border-box !important; width: auto !important; visibility: visible !important;"  /></strong></p><p style="">CT机中经常更换的消耗性部件之一,其结构与普通旋转阳极X线球管相似,为电真空器件.因其销售价格昂贵,故其使用的好坏将直接影响CT机医疗工作的顺利进行,并对医院的经济效益和社会效益带来较大影响.以下是我们结合技术服务工程师的指导意见,在日常设备使用过程中总结的几点经验,供大家参考指正:</p><p style=""><img data-s="300,640" src="http://mmbiz.qpic.cn/mmbiz/A1DicCH9Vl6NwvEPpQ9UicLduKRnAq5a7oS0icRJkgNJzbRIEiaLvXvU4eD5DNshYicMpN13ric4uoDkCJr3nZASkTog/0" data-ratio="0.666" data-w="500" src="http://mmbiz.qpic.cn/mmbiz/A1DicCH9Vl6NwvEPpQ9UicLduKRnAq5a7oS0icRJkgNJzbRIEiaLvXvU4eD5DNshYicMpN13ric4uoDkCJr3nZASkTog/640?tp=webp" style="word-wrap: break-word !important; box-sizing: border-box !important; width: auto !important; visibility: visible !important;"  /></p><p style="">1选择购买CT原厂球管</p><p style=""><br style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"  /></p><p style="">选择购买CT原厂球管,由原厂的工程师按最新的技术指标进行安装调试,使CT控制系统与球管达到最佳配合,是球管及机器系统运行的可靠保证.</p><p style=""><br style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"  /></p><p style="">2良好的操作规程</p><p style=""><br style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"  /></p><p style="">认真制订并严格执行操作规程.在每天全部彻底关闭电源前,应至少等待二十分钟以上,让球管充分冷却.应严格禁止在CT室使用移动电话等大功率无线电设备,避免干扰设备造成损坏.</p><p style=""><br style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"  /></p><p style="">3. 合理安排病人顺序</p><p style=""><br style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"  /></p><p style="">根据预约病人的不同扫描部位,将需要大剂量曝光的病人和小剂量曝光的病人进行间插安排,让球管不会长时间持续工作在高负荷状态.</p><p style=""><br style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"  /></p><p style="">4. 预热扫描操作</p><p style=""><br style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"  /></p><p style="">CT停止扫描数小时后再进行扫描时,应按照机器的提示执行预热扫描.预热扫描有利于延长球管的使用寿命并保证良好的图像质量.</p><p style=""><br style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"  /></p><p style="">5. 正确控制曝光条件</p><p style=""><br style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"  /></p><p style="">根据患者的年龄\胖瘦和扫描部位,精确设定最佳扫描条件,减少无谓的球管损耗,同时减少过量辐射对病人和操作者带来的危害.</p><p style=""><br style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"  /></p><p style="">6. 减少球管旋转阳极和灯丝的空耗</p><p style=""><br style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"  /></p><p style="">当扫描程序处于”就绪”状态时,应立即进行曝光扫描,因为此时球管的旋转阳极已经加速到每秒一万转的高速,灯丝也加热到曝光所要求的高温,若不及时进行曝光,将会造成旋转阳和灯丝的空耗.</p><p style=""><br style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"  /></p><p style="">7. 控制定位像(TOP)长度</p><p style=""><br style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"  /></p><p style="">精确摆放患者体位并确定扫描部位,尽量缩短非检查部位的曝光,以减少曝光时间延长寿命.</p><p style=""><br style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"  /></p><p style="">8. 做好设备预防性维护,</p><p style=""><br style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"  /></p><p style="">日常工作中应确保设备整体尤其是球管高压控制部分的良好状态,是保证球管运行的重要因素.</p><p style=""><br style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"  /></p><p style="">9. 温湿度及环境控制</p><p style=""><br style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"  /></p><p style="">球管在曝光过程中会产生大量的热.配备足够制冷(热)量的空调系统,按规定严格扫描室温度,并确保空气在扫描架内的循环畅通,将有利于球管的有效散热.同时保持室内清洁,减少尘埃的进入,可避免尘埃阻塞球管散热器.</p><p style=""><br style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"  /></p><p style="">10. 电网的稳定和洁净</p><p style=""><br style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"  /></p><p style="">供电系统的稳定\洁净并备有充足容量,是保证CT球管及系统稳定运行的必要条件.在CT机安装时应避免其它大功率设备,尤其是可控硅斩波或中频调速\调温系统使用同一条供电线缆,因其可能造成电网的剧烈波动或畸变.</p><p style=""><br style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"  /></p><p style="">以上几点经验,经过我们医院的实践证明,球管的正确使用和维护对于延长球管寿命\\改善图像质量起着不容忽视的作用,希望通过这些点滴经验,能对各位同仁的工作起到良好的作用.</p><p><strong style="white-space: normal; max-width: 100%; color: rgb(68, 68, 68); font-family: 宋体; line-height: 28px; text-align: justify; word-wrap: break-word !important; box-sizing: border-box !important;"></strong></p><p style=""><img src="http://mmbiz.qpic.cn/mmbiz/rz7R73cuHRrv6jdOCoJeZmYwvEAIoHpY0a7yJL2egiaEokLTpwkIsIRTzTFUic09aEThKHS4hrEcSqU0lAS3tu5g/0" data-ratio="0.14784394250513347" data-w="487" width="auto" src="http://mmbiz.qpic.cn/mmbiz/rz7R73cuHRrv6jdOCoJeZmYwvEAIoHpY0a7yJL2egiaEokLTpwkIsIRTzTFUic09aEThKHS4hrEcSqU0lAS3tu5g/0" style="font-size: 15px; 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