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制备输液的过程中,常出现微孔滤膜堵寒的现象,更换微孔滤膜发现上面有一层灰黑色的炭粒,这是导致滤膜堵塞的主要原因.笔者在工作中发现,漏炭是由于启动加压泵使药液经砂芯罐时(滤柱完好)过滤时,因滤桥尚未形成或已形成的滤桥遭到负压作用力的破坏所致.如果在缓冲瓶进药液口接一个三叉管即可排除漏炭现象。现简介如下:
Preparation of infusion process, often appear microporous membrane blocking the phenomenon of cold, replace the microporous membrane found above a layer of gray-black carbon particles, which is the main reason leading to filter clogging .I found in the work, carbon leakage Is due to start the pressure pump to make the liquid tank through the sand core (filter intact) filter, because the filter bridge has not yet formed or has been formed by the filter bridge was negative pressure force caused by the destruction of the bottle if the medicine Liquid outlet connected to a trigeminal tube to eliminate carbon leakage phenomenon. The brief introduction is as follows: