例 1　男 ,65岁。 1 993年 2月 3日因喉癌导致呼吸困难 ,在我科行紧急气管切开术。因患者拒绝行喉全切手术 ,在呼吸困难缓解后戴管出院 ,在外院服中药治疗。术后 5个月 ,患者因剧烈咳嗽致气管套管系带突然断裂 ,整个套管从气管造瘘处喷出。患者立即出现呼吸困难 ,紫绀 ,继而窒 Example 1 male, 65 years old. February 3, 1993 due to laryngeal cancer caused by breathing difficulties, in our department emergency tracheotomy. Due to the patient refused to line laryngectomy surgery, relieved dyspnea after discharge, Chinese medicine treatment outside the hospital. At 5 months after surgery, the patient suddenly ruptured the tracheal tube ligament due to severe cough and the entire tube was ejected from the tracheostomy tube. Patients immediately developed breathing difficulties, cyanosis, and then stifled