引流是外科治疗的重要手段,常用以引流脓液、组织液、血液、胆汁,尿液以及闭合死腔。以前使用最多的是潘氏引流(penrosedrain)。该引流属被动引流,效果良好,不易被阻。但由于是开放引流,敷料易潮湿,局部感染的机会亦多。为了克服上述问题,近来许多厂家设计和生产了负压引流装置,主要由负压球和一引流之硅胶管(silicone drain)组成,为主动引流,多 Drainage is an important surgical treatment, commonly used to drain pus, tissue fluid, blood, bile, urine and closed the dead space. The most commonly used before is penrosedrain. The drainage is a passive drainage, the effect is good, not easily blocked. However, because it is open drainage, dressing is easy to wet, the chances of local infection are many. In order to overcome the above problems, many manufacturers recently designed and manufactured a negative pressure drainage device, mainly composed of a negative pressure bulb and a silicone drainage tube, which is an active drainage device