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在治疗喉麻痹和严重声门后端狭窄中,临床医师常常不能确定采用何种方法使声门的大小能保持正常音色和足够的气流率。为术前设计最佳声门提供依据,作者测量了在改变声门大小时,尸体喉压力和气流的变化。采用五具新鲜尸体喉,声门前后径为1.8～2.3cm,与连在一起的完整气管8～10cm,固定在一个特殊设计装置中。缝合点围绕杓状软骨声带突来控制声带的位置,声门面积用双脚规测量几个点的长度和宽度来计算。五个声门的面积,最小0.29cm~2(在喉双侧外展肌麻痹时出现);最大
In the treatment of laryngotracheitis and severe stenosis of the glottis, clinicians often can not determine which method is used to maintain normal glottal size and adequate airflow rate. To provide the basis for the design of the optimal glottis before surgery, the authors measured changes in celiac pressure and airflow during changes in glottis size. Using five fresh cadaver larynx, glottis anteroposterior diameter of 1.8 ~ 2.3cm, together with the complete trachea 8 ~ 10cm, fixed in a special design device. Sutures around the aryteno-calcaneus vocal fold to control the vocal cords, glottis area with a pair of feet measuring the length and width of a few points to calculate. The area of the five glottis, the smallest 0.29cm ~ 2 (bilateral laryngeal abductor muscle paralysis occurs); maximum