本文在国人成人男性尸体材料上测量了无名动脉上端、中点至环状软骨上缘的距离;无名动脉上端、中点至2、3气管环间的距离。对气管套管气囊的位置、气管套管末端的位置及无名动脉对应的气管环的位置进行了观察。对临床上气管切开的位置及选择气管套管的长度,有效的防止气管切开术后造成无名动脉被腐蚀破裂出血,甚而使病人死亡。所以具有较重要的临床指导意义。 In this paper, we measured the distance between the upper part of the innominate artery and the upper edge of the cricoid cartilage on the adult male corpse material of our country; the distance between the upper end and the middle point of the innominate artery to the tracheal ring of 2,3. The position of the tracheal tube balloon, the end of the tracheal tube, and the position of the tracheal ring corresponding to the anonymous artery were observed. Clinically tracheotomy position and the length of tracheal tube selection, effectively prevent tracheotomy caused by the corrosive rupture of the anonymous artery bleeding, and even the patient died. So it has more important clinical significance.