好学医电在线

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<section><section powered-by="gulangu"><section><section powered-by="gulangu"><section><section><svg viewbox="0 0 1 1"></svg></section></section><section><section powered-by="gulangu"><p><strong>明日复明日，明日何其多。</strong></p></section><section powered-by="gulangu"><p>○</p></section><section powered-by="gulangu"><p><strong>无畏的太阳</strong></p></section><section powered-by="gulangu"><p>○</p></section><section powered-by="gulangu"><p><span>医疗|学习|钻研|电子电路|原理</span><br  /></p></section></section><section><section><svg viewbox="0 0 1 1"></svg></section></section></section><section powered-by="gulangu"><section><section powered-by="gulangu"><section><p><img src="image/20201019/fce415996395840144f5fe2ed64858b6_1.jpg" /></p></section></section><section powered-by="gulangu"><p><strong>欢迎关注</strong></p></section></section><section><section powered-by="gulangu"><section><p><img src="image/20201019/64eaabbb7ceba49013b030434562d3c2_2.png" /></p></section></section><section powered-by="gulangu"><p><strong>好学医电在线</strong></p></section></section></section><section powered-by="gulangu"><p><strong>请留下你指尖的温度</strong></p><p><strong>让太阳拥抱你</strong></p><p><strong>记得这是一个有温度的公众号</strong></p></section></section></section><section powered-by="gulangu"><section><section><section powered-by="gulangu"><section><section><section powered-by="gulangu"><section><br  /></section></section></section><section><section powered-by="gulangu"><section><section><br  /></section></section></section></section><section><section powered-by="gulangu"><p>希森美康全自动血气分析仪K-4500</p><p><br  /></p></section></section></section></section><section powered-by="gulangu"><section><section><section powered-by="gulangu"><section><br  /></section></section></section></section></section></section><section><section powered-by="gulangu"><section><br  /></section></section></section></section></section><section powered-by="gulangu"><section><section powered-by="gulangu"><section><br  /></section></section></section><section><section powered-by="gulangu"><section><p><strong>故障现象</strong></p></section></section></section></section><section powered-by="gulangu"><p><strong>开机，做杯空白自检出来的白细胞数值异常偏高，其他数值正常，且出现报错。</strong><strong>显示屏显示Ready No 0。</strong></p></section><section powered-by="gulangu"><section><p><img src="image/20201019/a5ccdbc312db44883cdff233d5c34bf7_3.jpg" /></p></section></section><section powered-by="gulangu"><section><p><img src="image/20201019/08c4c05ab638c8d42926304a9e70e074_4.jpg" /></p></section></section><section powered-by="gulangu"><p><strong>打印机出来的打印纸出现报错代码：Mode Blank Check Bkgrnd. Error。</strong></p></section><section powered-by="gulangu"><section><p><img src="image/20201019/6cc99dc2439e29c7ce7af9bd897adbb2_5.jpg" /></p></section></section><section powered-by="gulangu"><p><strong>处理过程中还出现过以下报错：①Rinse Motor Function Error Please Power OFF</strong></p></section><section powered-by="gulangu"><section><p><img src="image/20201019/5fc3b39b8876603f4d87672fb824562f_6.jpg" /></p></section></section><section powered-by="gulangu"><p><strong>②Mode Blank Check WBC Slow to Start Bkgrnd. Error。</strong></p></section><section powered-by="gulangu"><section><p><img src="image/20201019/d4087e34f60f359d8af72e3c535aa0cf_7.jpg" /></p></section></section><section powered-by="gulangu"><p><strong>③Mode Blank Check WBC Fast to Start Bkgrnd. Error。</strong></p></section><section powered-by="gulangu"><section><p><img src="image/20201019/225223c024b598852fb85d345abe2209_8.jpg" /></p></section></section><section powered-by="gulangu"><section><section powered-by="gulangu"><section><br  /></section></section></section><section><section powered-by="gulangu"><section><p><strong><span>分析过程</span></strong><br  /></p></section></section></section></section><section powered-by="gulangu"><p><strong>&nbsp; &nbsp; &nbsp; &nbsp;一、原理</strong></p><p><strong><span>直流检测原理</span></strong></p><p><strong><span>血液样本以预定的体积被抽吸，并用特定的倍数稀释，送至每个检测室。</span></strong></p><p><strong><span>在每个检测室中都有一个称为孔的小孔，孔的两边都是直流电极（外部电极+和内部电极-）。</span></strong></p><p><strong><span>当悬浮在稀释液中的血细胞通过小孔时，电极之间的直流电阻会改变，这种电阻阻值的变化会导致电脉冲的变化与血液分子的颗粒大小成正比例。</span></strong></p></section><section powered-by="gulangu"><section><p><img src="image/20201019/720a8adeedfcc932fed9e204bfee3bf9_9.png" /></p></section></section><section powered-by="gulangu"><section><p><img src="image/20201019/4e2125d4b0005b4fde2e70af1a9d9339_10.jpg" /></p></section></section><section powered-by="gulangu"><p><br  /></p></section><section powered-by="gulangu"><p><strong><span>白细胞分析原理</span></strong></p><p><strong><span>将全血通过全血吸管吸入样品转子阀。</span></strong></p><p><strong><span>用特定的稀释液和WBC裂解剂将样品稀释至特定比例后送到白细胞计数检测室。在这种情况下，大约13秒反应后，红细胞溶血，血小板收缩。</span></strong></p><p><strong><span>稀释后的样品通过孔径吸入，用压力计测量其体积为400ml,然后利用直流检测原理，对血液样本通过小孔的脉冲变化来进行计数和统计。</span></strong></p></section><section powered-by="gulangu"><section><p><img src="image/20201019/0fbd00cecc439b7caf3405390f863e2e_11.png" /></p></section></section><section powered-by="gulangu"><section><p><img src="image/20201019/5acf043a5b0b65c6d9fea7d775c0926a_12.png" /></p></section></section><section powered-by="gulangu"><p><span><strong>血液</strong></span></p><p><span><strong>血液由血浆和血细胞组成。</strong></span></p><p><strong><span>血浆是血液的细胞外基质。血浆的组成及其复杂，包括蛋白质、脂类、无机盐、糖、氨基酸、代谢废物以及大量的水。血浆蛋白是血液中最重要的基质蛋白。</span></strong></p><p><strong><span>血细胞分为三类：红细胞、白细胞、血小板。</span></strong></p></section><section powered-by="gulangu"><p><span><strong>二、分析</strong></span></p><p><strong><span>根据故障代码“Mode Blank Check Bkgrnd. Error”。可翻译为“空杯模式下检查错误”，且只有白细胞数值异常偏高。可以初步将故障锁定在白细胞检测系统这个方框。</span></strong></p><p><strong><span>根据白细胞分析的原理，主要排查以下方面：</span></strong></p><p><strong><span>①跟白细胞检测有关的各个管路是否存在气泡（有气泡说明有漏气需要根据情况排查）。</span></strong></p><p><strong><span>②SRV阀（样品旋转阀）是否有脏，内部孔是否堵住。（样品与稀释剂都要通过SRV阀送到白细胞检测室）</span></strong></p><p><strong><span>③试剂是否用完。</span></strong></p><p><strong><span>④白细胞检测室的内部电极与外部电极的线是否腐蚀或断线。</span></strong></p><p><strong><span>⑤外部电极的直流电阻是否损坏，内部电极的热敏电阻是否损坏。</span></strong></p></section><section powered-by="gulangu"><section><section powered-by="gulangu"><section><br  /></section></section></section><section><section powered-by="gulangu"><section><p><strong>解决方法</strong></p></section></section></section></section><section powered-by="gulangu"><p><strong>由简入繁首先排除各个管路（由于是透明管路很容易排除），和试剂。</strong></p><p><strong>将SRV阀拆下来清洗，装回去试机故障依旧。排除SRV阀。</strong></p></section><section powered-by="gulangu"><section><p><img src="image/20201019/cfd946bc7f4bf3886597f6746535ebec_13.jpg" /></p></section></section><section powered-by="gulangu"><p><br  /></p><p><strong>拆开白细胞检测室，找到外部与内部电极接线，测其到主板上面的排线通断正常，测量内部电极热敏电阻阻值为5千欧姆正常。测量外部电极的直流电阻阻值异常，阻值偏高。</strong></p></section><section powered-by="gulangu"><section><p><img src="image/20201019/60cd80c6589a4f5888ab8dda6736b235_14.jpg" /></p></section></section><section powered-by="gulangu"><section><p><img src="image/20201019/434a3271f28b4f73e624102ba79e0c5c_15.jpg" /></p></section></section><section powered-by="gulangu"><p><br  /></p></section><section powered-by="gulangu"><p><strong>最后将外部电极线剥开，发现线腐蚀氧化严重，影响阻值，导致白细胞检测异常。更换外部电极新的接线已经修复。</strong></p></section><section powered-by="gulangu"><section><p><img src="image/20201019/91971ce39730e60cef12a7df70ae8ff5_16.jpg" /></p></section></section><section powered-by="gulangu"><p><strong>故障现象①、②、③维修过程中出现的小插曲。</strong></p><p><strong>其中①是控制样品转子阀旋转的气杆卡死，拆下来用外力恢复即可。</strong></p><p><strong>②跟③，是白细胞室里面的管路漏气导致，紧固后已经修复，切记不要自己加长或更换管路，否则会有新的报错。</strong></p></section><section powered-by="gulangu"><section><p><img src="image/20201019/7be7f10342aa8ffd419cd251bf2511f8_17.jpg" /></p></section></section><section powered-by="gulangu"><section><p><img src="image/20201019/11b8effff0c1300091c0747f8bc78f7e_18.jpg" /></p></section></section><section powered-by="gulangu"><section><p><img src="image/20201019/2a25de70dff2660947af05e81ff214b1_19.jpg" /></p></section></section><section powered-by="gulangu"><p><br  /></p></section><section powered-by="gulangu"><section><section powered-by="gulangu"><section><p>欢</p></section></section></section><section><section powered-by="gulangu"><section><p>迎</p></section></section></section><section><section powered-by="gulangu"><section><p>关</p></section></section></section><section><section powered-by="gulangu"><section><p>注</p></section></section></section></section><section powered-by="gulangu"><p><br  /></p></section><section powered-by="gulangu"><section><section powered-by="gulangu"><section><p><img src="image/20201019/fce415996395840144f5fe2ed64858b6_1.jpg" /></p></section></section></section><section><section powered-by="gulangu"><section><section></section></section></section></section><section><section powered-by="gulangu"><p>好学医电在线</p><p>和他的朋友们</p></section></section></section></section>