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1985年5月我科收治1例误将自动铅笔锥形套吸入气管的7岁小学生，在用普通支气管异物钳和反张支气管异物钳试取失败时（异物钳插不进自动铅笔套内）．根据其内壁有螺纹的特点，急中生智．临时利用28自行车辐条一端的螺纹旋入异物腔内取出。在充分研究了自动铅笔套这种特殊异物特
May 1985 admitted to our hospital 1 case mistakenly pencil suction cone into the trachea of 7-year-old pupil, with ordinary bronchial foreign body forceps and anti-open bronchial foreign body forceps failed to try (foreign body inserted into the pencil case) . According to the characteristics of the inner wall of the thread, emergent wisdom. Temporarily use 28 bike spokes at one end of the screw into the foreign body removed. In the full study of this special foreign pencil pencil sets special