摘要
对我军现用供氧装备的呼吸阻力实测结果表明:(1)通气量20L/min时,面罩腔压力波动值,YX-1系统为0.98kPa,YX-3系统为0.91kPa,两者差别显著;(2)在静坐及轻度体力负荷下,两种系统呼吸阻力感觉量值均处于轻、中度之间,而在中度体力负荷时达中度水平,YX-3系统的阻力感觉虽低于YX-1系统,但相差不显著;(3)在轻度体力负荷下,YX-3系统持续作用30min,未发生感觉适应现象;(4)两种供氧系统的阻力偏高,有进一步降低之必要。
The respiratory resistance of the aircraft oxygen equipment currently used in our armed forces was investigated.The results showed:(l)When ventilation was 20L/min,the mask cavity pressure swing (P) of YX-1 system was 0.98 kPa,and that of YX-3 system 0.91 kPa.Their difference was significant;(2)The sensation magnitude was between light and moderate when sit still or with mild exertion,while it was moderate during moderate exercise.The resistant sensation of YX-3 system was lower than that of YX-1 system,but there was no significance statistically (P>0.05).(3) With YX-3 system being used for 30 min with light physical activity,adaption of respiratory resistant sensation was not observed.(4)The respiratory resistance of two kinds of oxygen system was too high,and lowering is recommended.
出处
《解放军医学杂志》
CAS
CSCD
北大核心
1990年第3期175-178,共4页
Medical Journal of Chinese People's Liberation Army
关键词
航空供氧装备
吸吸阻力
测定
Aircraft oxygen equipment Respiratory resistance Mask cavity pressure Multistage evaluation scale Physical load
