冰冻切片机操作流程

冰冻切片机操作流程

  由于要交一份电子版,所以修改一下顺便传上来了。

目的

  为什么要做冰冻切片而不是石蜡切片,因为冰冻切片相对于石蜡切片相对简便快速,用时短, 多应用于手术中的快速病理诊断 ,缺点是不利于持久保存。

步骤

开机

  使用前最少2小时,按右侧电源键开机。但在实际情况下,一般为待机状态,长按待机键解除待机状态。

预冷

  调节温度至-25℃,将刀片刷子样品等提前放进去预冷。等待仪器降至所需温度。

固定刀片及样品

  在样本托上滴点蒸馏水,用来固定样品,如有需要可用蓝色速冻台降温,冷冻后将其固定在切片机样本头上。一般不需要动刀座的锁紧杆,只需要打开刀片的锁紧杆放入刀片。注意使用仪器左侧控制面板上的样本后退按键,将样本头调到最后方,防止安装样本时撞坏防卷板、刀片等

调节切片厚度

  一般调节切片厚度为15或20μm,小心控制仪器的样本推进按键,使样本向刀架方向前进直到刀片快要接触样本时,此时再换用手轮控制。

切片

  打开手轮柄锁,顺时针均力旋转手轮一圈,切好后将手轮锁定在12点位置,即样本头移动在最高位置以便于取出切片,掀开防卷板,用常温的针管弯头将切片粘附放入常温放置的蒸馏水或者PBS中,再用带毛针管头小心贴片。当然也有用常温载玻片往样本上靠的方法。如果刀上或防卷板粘有脏东西,用预冷过的刷子顺着刀刃方向刷干净。

清理

  切片结束后收好刀片,锁定手轮,用冰冻台里面的刷子扫除多余组织碎片并清理出去,较小组织可以用常温放置的卫生纸擦拭。注意不能用水擦拭,应当用无水乙醇。

关机

  一般情况下因为要经常使用,可不必关闭电源。用完将温度调到-10℃,然后长按待机键使时间中间的:消失,即为进入待机状态。

其他注意事项

  • 环境温度应该在20℃下进行。
  • 防卷板轻拿轻放,避免损坏。
  • 切片完毕收好刀片,锁死手轮锁。
  • 其他已设参数勿动,一般只调整切片厚度。
  • 应保持切片机及周围区域清洁,机外废水壶满应及时倒掉。

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