GE 64排VCT日常保养与维修

admin · 发表于 2020-10-21 13:07:47

<p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">GE64排VCT(容积CT)是美国通用公司投入巨资开发的新一代CT机，它是目前速度较快、精度较高的高端CT产品。为了使这台CT机能充分的为临床诊断服务、减少维修成本、降低故障发生率，日常的保养与维修是十分重要的。<p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;"><img data-s="300,640" data-type="jpeg" src="http://mmbiz.qpic.cn/mmbiz/A1DicCH9Vl6NdC9Epp7TqpCG0ZeCIicLbmYjNRx2fs0WxZRVJicgicl2XOMtymdMkmYaspxFLEcuS0ibiaf3JZjiawZ4g/0?wx_fmt=jpeg" data-ratio="0.6625" data-w="400" /> <section class="135editor" data-id="39" style="max-width: 100%; box-sizing: border-box; color: rgb(62, 62, 62); font-family: 微软雅黑; white-space: normal; background-color: rgb(255, 255, 255); border: 0px none; word-wrap: break-word !important;"><section style="margin-top: 0.8em; margin-bottom: 0.5em; max-width: 100%; box-sizing: border-box; overflow: hidden; word-wrap: break-word !important;"><section class="135brush" data-brushtype="text" placeholder="请输入标题" style="padding-right: 10px; padding-left: 10px; max-width: 100%; height: 36px; display: inline-block; color: rgb(255, 255, 255); font-weight: bold; line-height: 36px; float: left; vertical-align: top; background-color: rgb(249, 110, 87); box-sizing: border-box !important; word-wrap: break-word !important;">一、 CT机的日常保养</section><section style="max-width: 100%; display: inline-block; height: 36px; vertical-align: top; border-left-width: 9px; border-left-style: solid; border-left-color: rgb(249, 110, 87); box-sizing: border-box !important; word-wrap: break-word !important; border-top-width: 18px !important; border-top-style: solid !important; border-top-color: transparent !important; border-bottom-width: 18px !important; border-bottom-style: solid !important; border-bottom-color: transparent !important;"></section></section><section style="max-width: 100%; box-sizing: border-box; width: 0px; height: 0px; clear: both; word-wrap: break-word !important;"></section></section> <p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;"> <p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">1、每日开关机一次，并在开机后进行球管预热和快速校准。<p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;"> <p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">(1) 这台CT机使用的是Linux操作系统，功能越来越多，软件变得非常复杂，长时间使用后会使一些计算机资源不能被释放，影响其它程序运行，而正常的每日关机就可以解决这个问题。<p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;"> <p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">(2)Fast Calibration(快速校准)主要包括以下内容：Balance Check(机架平衡检查不出线)、Mylar Window Check(聚酯薄膜窗口清洁检查)、Warm-Up(第一次球管加热)、Auto MA Calibration(自动毫安校准)、Warm-Up(第二次球管加热)、Auto Z-slope(探测器位置检测)、Collimator Cal(准直器校准)、Mini Scan(检测焦点位置，确保Z轴射线束跟踪正确操作)、Clever Gain(数据采集系统放大增益检测)、Air Calibration(空气校准)。Tube Warm-Up(球管加热)可以使冷却的球管得到一个温和的加热过程。<p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;"> <p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">上述两项操作可以使机器得到最佳的性能和稳定一致的图像，并且延长球管使用寿命。<p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;"> <p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">2、每个病人检查结束后，及时退出扫描程序，避免无用的球管加热和旋转，减少磨损。<p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">当操作人员退出扫描程序的同时，机架就会给滑环刹车的动作，使滑环在最短的时间内停下。如果没有及时退出扫描程序，滑环会在惯性的作用下旋转一段时间，这段时间对滑环、皮带及炭刷的磨损是无意义的，应该避免其经常发生。<p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;"> <p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">3、及时清除队列里未完成的任务，可以有效的提高计算机运行速度。<p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">主要包括三个队列：Networking Queue(网络队列)、Archive Queue(存档队列)、Filming Queue(照相队列)。<p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;"> <p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">4、选择合适的毫安扫描参数。<p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">GE64排VCT使用的是8M Tube，有两个灯丝：Small filament 40KW 335MA、Large filament 100KW 800MA。Small filament提供较高的空间分辨率，Large filament提供更大的管电流。对于MA值接近Small filament上限时，应该选取Large filament下限值，这样可以有效的延长球管的使用寿命。避免Small filament过度使用而Large filament没有得到充分利用的时候，Small filament损坏更换球管。<p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;"> <p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">5、选择合适的转速。<p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">GE64排VCT的转速为0.35-2.0秒/圈。较高的转速会带来较多的磨损，对于普通胸腹部位扫描，如果病人能控制呼吸，最好使用低转速扫描(建议使用0.8秒/圈)。 <p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;"> <p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">6、选择合适的设备环境。<p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">温度：冬天20度，夏天24度，潮湿季节温度不要太低，以免结露。湿度：40-60%。清洁的室内环境：每日打扫，使用鞋套。监控电源和地线：至少每年检查一次地线的阻值，应该小于2欧姆。加强防雷防静电保护。<p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;"> <section class="135editor" data-id="39" style="max-width: 100%; box-sizing: border-box; color: rgb(62, 62, 62); font-family: 微软雅黑; white-space: normal; background-color: rgb(255, 255, 255); border: 0px none; word-wrap: break-word !important;"><section style="margin-top: 0.8em; margin-bottom: 0.5em; max-width: 100%; box-sizing: border-box; overflow: hidden; word-wrap: break-word !important;"><section class="135brush" data-brushtype="text" placeholder="请输入标题" style="padding-right: 10px; padding-left: 10px; max-width: 100%; height: 36px; display: inline-block; color: rgb(255, 255, 255); font-weight: bold; line-height: 36px; float: left; vertical-align: top; background-color: rgb(249, 110, 87); box-sizing: border-box !important; word-wrap: break-word !important;">二、 CT机的日常维修</section><section style="max-width: 100%; display: inline-block; height: 36px; vertical-align: top; border-left-width: 9px; border-left-style: solid; border-left-color: rgb(249, 110, 87); box-sizing: border-box !important; word-wrap: break-word !important; border-top-width: 18px !important; border-top-style: solid !important; border-top-color: transparent !important; border-bottom-width: 18px !important; border-bottom-style: solid !important; border-bottom-color: transparent !important;"></section></section><section style="max-width: 100%; box-sizing: border-box; width: 0px; height: 0px; clear: both; word-wrap: break-word !important;"></section></section> <p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;"> <p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">1、检查配电箱上电压表，电压是否在正常值范围内。<p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;"> <p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">2、检查紧急开关是否被误操作，可以按扫描架复位键恢复正常使用。<p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;"> <p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">3、如果扫描架遥控倾斜或床升降失效，检查病人是否碰到压敏保护胶条。<p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;"> <p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">4、床板是否未被锁住。应该注意千万不要带电手动推拉床板，当床板被逆向拖动时，带动床板运动的电机会产生反方向的电流，容易烧毁电路板。<p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;"> <p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">5、当机器出现问题时，尝试关机，关掉电源后三分钟再开机，最多两次一般故障就可以解决。<p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;"> <p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">6、HVDC系统出现故障。查看：电缆有没有被损坏(多为老鼠破坏)、PDU内控制电路板是否有红色报警灯闪亮、机器滑环是否残留大量炭粉、滑环炭刷是否有磨损接触不良。日常故障均可在维修后解决。<p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;"> <p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">7、经常对机架通风散热系统日常维修。GE64排VCT机架有一个进风口在机器的底部，四个出风口在机架的顶端，它们构成了机架的通风散热系统。进风口有防尘垫，当灰尘过多时会堵塞进风口使通风散热循环不畅，系统会经常提示“DAS Digital Temperature out of tolerance(探测器温度不合适)”，探测器温度不合适进行扫描会产生伪影，影响图像质量。除经常对进风口防尘网进行清理外，对DAS探测器风扇内防尘网也应该定期的清理维修，以保证探测器在合适的温度下工作。<p style="max-width: 100%; min-height: 1em; white-space: normal; color: rgb(62, 62, 62); font-family: 微软雅黑; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;"> <hr /> ID: 最具人气的医疗器械维修新媒体平台分享医疗器械前沿动态、医疗器械维修经验 加群主微信 shanying916 与更多行业从业人员互动交流<img data-s="300,640" data-type="jpeg" src="http://mmbiz.qpic.cn/mmbiz/A1DicCH9Vl6MoypciaNOibiaxmVLk8eA6ibKL14uWjKsZwrWboQYKTfXqPicXycwL1icfia1pAG0VzlTX3MRR4FPV0ZtZA/0?wx_fmt=jpeg" data-ratio="1.0136054421768708" data-w="147" style="float: none;" />

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