自制简易气管内喷药器汪正平，李士通，曹邦雄，刘俊杰气管内插管或镜检时常需行气管表面麻醉，普通枪式喷雾器很难将局麻药喷至气管深处；环甲膜穿刺注药又有一定损伤，亦难保证药液在气管内壁均匀涂布。为此，我们自制了简易气管内喷药器，提高了气管内表面麻醉的效果。... Self-made simple endotracheal injection device Wang Zhengping, Li Shitong, Cao Bangxiong, Liu Junjie Tracheal intubation or microscopy often requires tracheal surface anesthesia. Ordinary gun sprayer is difficult to spray local anesthetic into deep trachea; The medicine has certain damage, and it is also difficult to ensure that the liquid medicine is uniformly applied on the inner wall of the trachea. For this reason, we made a simple endotracheal sprayer and improved the anesthetic effect on the inner surface of the trachea. ...