本组46例因张口困难、头颈部活动受限等不能在明视下行气管插管术的患者采用气管导管套囊充气法经鼻腔盲深置入气管导管。病人保持自主呼吸，进行粘膜表面麻醉，导管先入食道后退至听到气流音即止，使导管前端处于喉腔中位，减少向两侧偏移的机会，同时适量的气囊充气，使导管前端抬高，便于对准声门，此法可明显提高经鼻腔盲探气管内插管术成功率。 The group of 46 patients due to mouth difficulties, limited head and neck movement and other patients who can not be under direct intubation intubation tracheal catheter cuff inflation method nasal blindness into the tracheal tube. Patients to maintain spontaneous breathing, mucosal surface anesthesia, the catheter into the esophagus receded to hear the sound of air flow, so that the front of the catheter in the throat, reducing the chance of migration to both sides, while the right amount of air bag inflatable catheter lift High, easy to align glottis, this method can significantly improve the success rate of nasal blind tracheal intubation.