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1 制作材料250 mL(或500 mL)输液瓶(带橡胶瓶塞)2个,输液器(带输液器流量控制开关)2根,废圆珠笔芯1段。2 制作方法(1)把两根输液器的两根长管从中间剪断,各取带插头的一端,长短可视需要而定,留下带有流量控制开关 K_1的一根长管,中间用圆珠笔废芯的杆连接起来,封严,导气管(或导液管)就制成了。(2)把两个干净的输液瓶塞好瓶塞,把导气管两端插头各插入一个瓶塞,把余下带有流量控制开关 K_2的一根长管套入其中一个输液器进气管上即可(图1)。
1 Make 250 mL (or 500 mL) infusion bottles (with rubber stoppers), 2 infusion sets (with infusion set flow control switches), and 1 waste ball-pen lead. 2 Production method (1) Cut the two long tubes of the two infusion sets from the middle. The length of each end of the plug with the plug can be determined as required, leaving a long tube with a flow control switch K_1. The stems of the ball-point pens were attached, sealed, and air tubes (or catheters) were made. (2) Plug two clean infusion bottles into the stoppers, insert the two ends of the air pipe into one stopper, and insert the remaining one with the flow control switch K_2 into one of the infusion set inlets. Can (Figure 1).