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目的为使气管插管时声门易于显露,将麦氏弯喉镜窥视片作了改进,并结合临床进行了效果观察。方法依据头后仰的结线较平卧增加的长度和头后仰口喉线夹角大小,观察在使用麦氏弯喉镜与改进型弯喉镜的声门显露程度。结果显示头后仰较平卧结线增长≤2.0cm时,两种喉镜的声门显露程度对比P<0.01。虽头后仰口喉线夹角≤70度时,两种弯喉镜对比无统计学意义,但可使声门全显露率和显露不清率分别提高16％和下降19.9％。结论改进型弯喉镜除用于一般患者外,对肥胖、颈短、头后仰差及小下颌、门齿外突的口腔弯曲度大、甚至舌体大和会厌宽短或长的患者,其窥视片头端也可抵达会厌与舌根交接处而显露声门,有基层医院推广使用价值。
The purpose of the tracheal intubation easy to reveal the glottis, the McNair laryngoscope spy films made an improvement, combined with the clinical observation of the effect. Methods According to the increase of length of supine posterior tie line and the angle of laryngeal angle of head back posteriorly, the degree of glottis exposed in using the benign and benign curved laryngoscope was observed. The results show that the head reclining supine than the line when the growth of ≤2.0cm, the two laryngoscope glottic revealed the degree of contrast P <0.01. Although the angle of head-back laryngeal angle is less than or equal to 70 degrees, there is no significant difference between the two bended laryngoscopes, but the total glottal exposure rate and dew-rate are increased by 16% and 19.9% respectively. Conclusions In addition to being used in general patients, the modified curved laryngoscope has a great effect on obesity, short neck length, posterior head elevation, small oral mandibular incisors, large oral curvature and even short tongue or long tongue End of the film can also be reached at the junction of the epiglottis and tongue revealed glottis, the promotion of the use of grass-roots hospitals value.