静脉穿刺针持针器静脉穿刺是临床中一种最为普通的治疗方法。常用的静脉穿刺针规格为长１５─２０ｍｍ，针尾有一直径约８ｍｍ圆形塑料手柄。由于柄较小，穿刺时只能用拇指和食指捏持，接触面积小，固定力弱，影响进针的速度和准确性。尤其是夏天手易出汗或排气时液体弄湿... Venipuncture Needle Needle Venipuncture is the most common treatment in clinical practice. The commonly used venous puncture needle has a length of 15 to 20 mm, and the needle tail has a round plastic handle of about 8 mm in diameter. Due to the small shank, the puncture can only be held with the thumb and index finger, the contact area is small, and the fixing force is weak, which affects the speed and accuracy of the needle insertion. Especially in the summer when the hands are prone to sweating or the liquid gets wet when exhausted...