由于小学生中使用自动铅笔者增多,近年来,我们接诊自动铅笔头帽支气管异物较多。该异物尖端有一细金属管,内径为0.5或0.7mm,在X平片上可以显影。体部呈圆锥形,内腔有螺扣。这类异物病史一般较明确,支气管镜检查时发现,异物多尖端向下,粗大尾部向上。由于其内径较小,用取塑料圆珠笔帽的反撑式异物钳抓取时,其头部两爪不能伸入笔帽腔内。由于异物尖端较细,常嵌入很深, Due to the increase in the number of primary schoolchildren who use automatic pencils, in recent years, we have seen more foreign bodies in the pencil headgear bronchus. The tip of the foreign body has a thin metal tube, an inner diameter of 0.5 or 0.7mm, can be developed in the X-ray film. Body was conical, lumen with a screw. The history of such foreign body is generally more clear, bronchoscopy found that foreign body more sophisticated downward, thick tail up. Because of its smaller diameter, with plastic ball cap cap anti-stripping foreign body forceps when grasping the two jaws can not reach the head cap cavity. Due to the thin tip of foreign body, often embedded deep,