To place the central line, a small incision is made where the catheter enters the vein and the IV line is passed under the skin to a second small incision at a distance from the first.

• 为了放置中央（静脉）导管，需要在导管进入静脉的地方做一个小的切口，静脉注射管进入皮肤下则是通过与前一个有一定距离的第二个切口。