静脉滴注大容量液体是临床上用以补充血容量、电解质、营养物质和药物的一种重要方法。但是当滴注的液体中污染了异物时,则对人体甚为有害,临床上已有不少这方面的报道,引起了人们的注意。在给患者进行静脉滴注时,输液中污染异物的主要途径是输液本身澄明度不好或由滴注装置中引入。对于前者,我国药典已规定对注射液进行澄明度检查而有所控制;但对后者,尚缺乏质量控制的方法。目前,临床上常用的静脉滴注装置有两种:一为由玻璃吊筒、乳胶管、莫氏滴管、玻璃接管和针头等所组成(以下简称吊筒式装置);一为以原输液瓶代玻璃吊筒,经插入瓶塞的两个较粗的注射针头,使 Intravenous infusion of bulk liquids is an important method clinically used to supplement blood volume, electrolytes, nutrients and drugs. However, when the instillation of liquid in the contaminated foreign body, then the human body is very harmful, there are many clinical reports in this area, has aroused people’s attention. In patients with intravenous drip, the main way of transfusion contaminated foreign body is the infusion itself is not clear degree of clarity or introduced by the drip device. For the former, China’s Pharmacopoeia has provided for the clarity of the injection to be controlled and controlled; but the latter, there is a lack of quality control methods. At present, there are two kinds of intravenous drip devices commonly used clinically: one is composed of a glass tube, a latex tube, a Mohs drop tube, a glass tube and a needle, etc. (hereinafter referred to as a tube-type device) Bottle glass on behalf of the glass tube, the two inserted through the stopper of the thicker needle, so