The inside of the streamline shape head part of the closed type drain tube is provided with the positioning groove of the guide steel needle. 封闭式引流管流线形头部内侧设有导引钢针定位凹槽。
Closed Suction Drainage and No Drain for Knee Arthroplasty: A Systematic Review 全膝关节置换术后伤口引流与不引流的系统评价
Results: There was one case delayed heal of wound after operation, and it closed after drain. 结果:术后创口延迟愈合1例,经引流Ⅱ期闭合伤口;
Curative effect of closed drainage of thoracic cavity with small drain pipe on spontaneous pneumothorax 自发性气胸小导管胸腔闭式引流术疗效观察
Experimental research on using approximate horizontal long-hole instead of closed high extracted roadway to drain gas 顶板近水平长钻孔替代闭式高抽巷进行瓦斯抽放的试验研究
The closed calcium carbide furnace is renovated by reducing 700mm_long bare electrodes, the current drain of calcium carbide fumace is cut down 98kW · h/ t with the remarkable benefits. 通过密闭电石炉工艺改造,减少裸露电极700mm,降低电石电耗98kW·h/t,取得明显经济效益。