经皮穿刺静脉置管术较传统的静脉切开术有较多优点,现将笔者临床使用6例体会报告如下。一、外套管穿刺针外套管穿刺针由塑料外套管及穿刺针头两部分组成(图1)。穿刺针经塑料外套管远端的侧孔衬入管内(图2)。 Percutaneous needle catheterization has more advantages than the traditional phlebotomy, now I use the clinical report of 6 cases as follows. First, the outer tube needle Puncture needle Puncture needle Puncture needle by the plastic tube and needle two parts (Figure 1). The puncture needle is inserted into the tube through the side hole at the distal end of the plastic overtube (Figure 2).