临床工作中,许多疾病及手术围术期需气管插管人工维持呼吸。气囊压力及压迫时间不当可致气管黏膜缺血损伤、术后声嘶、咽喉痛等并发症[1],严重者发生气道狭窄,危及患者生命。多年来,人们试图解决这一难题,但迄今为上,还没 Clinical work, many diseases and surgical perioperative tracheal intubation need to maintain artificial respiration. Improper balloon pressure and oppression can cause tracheal mucosal ischemia, postoperative hoarseness, sore throat and other complications [1], severe airway stenosis, endangering patients’ lives. Over the years, people have tried to solve this problem, but up to now, not yet