为保证口腔颌面外科大手术患者维手术期安全,避免气管切开的创伤,近2年我科以长期留置经鼻气管插管方法帮助患者度过术后危险期。我们在置管期沿用人工间断注入湿化法行气道湿化,传统操作方法为:用生理盐水加少量抗菌素,向气管内滴入5~15m l[1]。由于一次性气道滴药量大,患者在 In order to ensure the safety of major surgery in oral and maxillofacial surgery and avoid the tracheotomy, our department assisted the patients to survive the postoperative risk period in the past 2 years by long-term indwelling nasotracheal intubation. We use the artificial intermittent infusion humidification during airway airway humidification, the traditional method of operation: with saline plus a small amount of antibiotics, to the trachea instillation of 5 ~ 15m1. As a one-time drop of large amount of airway, patients in