早产儿由于胎龄不足 ,肺发育不成熟 ,肺功能残气量较小 ,肺泡容易萎陷 ,极易出现呼吸困难、发绀、呻吟、三凹征。把好早产儿呼吸关 ,是提高早产儿成活率的关键。我们自 1998年 5月以来 ,在没有机械通气的条件下 ,采用自制简易鼻塞式持续气道正压呼吸器 ( continuous positive a Premature children due to lack of gestational age, immaturity of the lungs, pulmonary residual capacity smaller alveoli prone to collapse, prone to breathing difficulties, cyanosis, moaning, three concave sign. Breathing off good premature children is the key to improving the survival rate of premature children. Since May 1998, we have used a self-made simple nasal continuous positive airway pressure (continuous positive a