| 摘要 |
A drainage tube for a closed liquid drainage system. The drainage system includes a catheter having a drainage eye adjacent its distal end for insertion into the body cavity of a patient and a drainage lumen extending from the drainage eye to the proximal end of the catheter, and a drainage receptacle for collecting the liquid. The drainage tube has a pair of lumens which are in communication adjacent the upstream and downstream ends of the tube. The lumens also communicate with the drainage lumen of the catheter adjacent the upstream end of the tube and with the receptacle adjacent the downstream end of the tube in order to drain liquid from the catheter to the receptacle and alleviate negative pressure which may develop in the system. |
