主要介绍了堵管、渗漏、静脉炎的发生机制、原因、临床表现，并提出护理对策。
It introduced the mechanism, cause and clinical manifestation of tube blocking, leakage and phlebitis. And it put up some nursing strategies for the failure.
一特点：操作便捷，密封性极好、抗振动、不渗漏、不变形、不堵管。
One features: easy operation, excellent sealing, anti-vibration, no leakage, no distortion, no plugging.
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