Zacharski L R, Colt J, Mayor M B, Strohbehn J W, Brown S A
Arch Surg. 1979 May;114(5):614-5. doi: 10.1001/archsurg.1979.01370290064013.
The mechanism of obstruction of closed-wound drainage tubing was investigated by means of coagulation tests performed on wound drainage fluid and by examination of the contents of the tubes after their removal. Although clotting is commonly thought to be responsible for the obstruction, the wound drainage fluid was found to be essentially incoagulable and little fibrin was evident within the tubes. By contrast, bits of tissue were frequently found within the tubes, and these frequently virtually occluded the lumen. This observation, that tissue fragments are responsible for tube obstruction, permits a rational approach to the solution of this problem. For example, meticulous wound flushing and irrigation, or perhaps tubing of different design, might lead to a reduced incidence of tube failure.
通过对伤口引流液进行凝血试验以及在拔除引流管后检查其内容物，对闭合伤口引流管堵塞的机制进行了研究。尽管通常认为凝血是造成堵塞的原因，但发现伤口引流液基本上不能凝固，且管内几乎没有明显的纤维蛋白。相比之下，管内经常发现组织碎片，这些碎片常常几乎完全堵塞管腔。这一观察结果，即组织碎片是造成引流管堵塞的原因，为解决这一问题提供了合理的方法。例如，仔细冲洗和灌洗伤口，或者采用不同设计的引流管，可能会降低引流管堵塞的发生率。
