目前采用的输液装置有两种类型。一种是 悬吊式输液装置,它是无动力液体落差 自动加压输注系统。另一种是输液泵,利用转速可调的电动机带动精细的蜗杆旋转,推动活塞缓缓前移,把液体慢慢送入人体。目前国内使用最多的是悬吊式输液装置,贮存液体的容器悬吊在病床上方,由于输液瓶液位和人体静脉血管不在同一高度上,输液系统中流体的压力高于人体静脉血管内的静压力,在这种压差的推动下,容器中的液体流过细细的软管,软管末端与中空的小针管相连,液体通过小针管缓缓进入静脉血管。在流体运行的通道上,还有一个可以手动控 There are two types of infusion devices currently used. One is the suspended infusion device, which is a non-powered liquid drop automatic pressure infusion system. The other is the infusion pump, the use of adjustable speed motor driven fine worm rotation, pushing the piston slowly forward, the liquid slowly into the body. At present, the most commonly used is the suspended infusion device, the container for storing liquid is suspended above the bed. Since the level of the infusion bottle and the vein of the human body are not at the same height, the pressure of the fluid in the infusion system is higher than that of the vein in the human body Pressure, driven by this pressure differential, causes the liquid in the container to flow through the thin tube, the end of the tube to the hollow small needle, and the liquid to the vein through the small needle slowly. There is one more hand-controllable channel in the fluid