论文部分内容阅读
上世纪80年代初,静脉留置针进入发达国家和地区~([1]),我国也在随后逐渐引进这项技术。静脉留置针作为一种先进的新型输液器材,使用浅静脉留置不但可以减少了病人的穿刺次数,减轻了疼痛感,为住院病人输液等一系列静脉治疗提供了方便。留置针主要的组成部件包括可以留置在血管内的柔软的导管/套管和不锈钢的穿刺引导针芯。使用过程中将导管和针芯一起穿刺入血管内,当导管全部进入血管后,回撤出针芯,
The early 80s of last century, intravenous catheter into the developed countries and regions ~ ([1]), our country is also gradually introducing this technology. Venous indwelling needle as an advanced new infusion equipment, the use of superficial vein indwelling not only can reduce the number of patient punctures, reduce the pain, for inpatient infusion and a series of intravenous treatment provides a convenient. The main components of the indwelling needle include a soft catheter / cannula that can be left in the blood vessel and a stainless steel needle cannula. During use, the catheter and the needle core are punctured into the blood vessel, and when the catheter all enters the blood vessel, the needle core is withdrawn,