目前,国内外临床医师对误入上消化道的体积较大、形态不规则、尖锐质硬的特殊异物的安全取出的问题仍未解决[1]。尽管多年来,我们已经为320例上消化道异物病人取出异物387件,但是在此期间,于1991年我们曾为一误吞双钩假牙8天的病人,经内镜取出时发生了食管穿孔之严重并发症[2]? At present, the clinicians at home and abroad have not yet solved the problem of the safe removal of special foreign bodies that are bulky, irregular in shape and sharp and hard in nature and have been stymied into the upper digestive tract [1]. Although 387 foreign bodies have been removed for 320 cases of upper gastrointestinal foreign body patients over the years, during this time in 1991 we had esophageal perforation of a patient who had swallowed double hook dentures for 8 days after endoscopic removal Serious complications [2]?