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编辑同志:本刊及其他书刊上曾介绍过不少拔开针管的办法。如有的用打氣管从安装针头处打入空氣使其压开,有的用硫酸、酒精、甘油液由针管后面渗入然后拔开,还有用火烤针管的方法拔开。以上介绍的办法,我们觉得既费时,又不安全。下面介绍一种方法,既安全,不致使注射器破损,同时又百分百的管用。我们也是利用热涨冷缩的道理,但不是用火烤或水煮。用火烤往往因受热不平均引起爆裂,用水煮则因针管和针栓同时受热膨胀,结果还是拔不开。我们
Editors Comrades: This magazine and other publications have introduced a number of ways to unplug needles. For example, air is blown from the mounting needle by the air pump to open it, and some of them are infiltrated with sulfuric acid, alcohol, and glycerin from the back of the needle and then pulled out. The above-mentioned measures are considered to be time-consuming and insecure. The following describes a method that is safe and does not damage the syringe, but it is also 100% effective. We are also using the principle of rising and shrinking, but not using fire or boiling. The use of fire is often caused by uneven heating caused by burst, boiled by the needle and pintle due to thermal expansion at the same time, the result is still not open. we