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一、原理密闭瓶里的液体,承受瓶内的气体压力,此时如有导管通向瓶外,且瓶内压力大于瓶外压力,则液体即可沿导管流出。本输液器即根据这一原理工作。输液器由输液瓶、固定器、双连球细菌过滤器、输液管及安全滴管等组成。安全滴管内置有沉浮活塞,管内有输液时,活塞浮起;无输液时,活塞下沉,防止产生气栓。过滤器内置有细菌过滤膜,可对空气和细菌进行过滤(见附图)。二、用法①组装:长针与短输液管连接,倒置冲洗短针后,同过滤器消毒备用;②针刺:按无菌操作要求,将过滤器接双连球,短针刺入瓶内,长针至瓶底
First, the principle of closed bottle of liquid, to withstand the gas pressure in the bottle, this time if the catheter leading to the bottle, and the bottle pressure is greater than the pressure outside the bottle, the liquid can flow along the catheter. The infusion device is based on this principle. Infusion set by the infusion bottle, retainer, double ball bacteria filter, infusion tube and safety dropper and other components. Safety dropper built-in sinking piston, infusion tube, the piston floats; no infusion, the piston sink, to prevent the generation of gas plug. Filter built-in bacteria filter membrane, air and bacteria can be filtered (see photo). Second, the use of ① assembly: long needle and short infusion tube connection, the inverted flush short needle, disinfected with the filter spare; ② acupuncture: sterile operation requirements, the filter double ball, the short needle piercing the bottle , Long needle to the bottom of the bottle