吸氧排氮

结果：在吸氧排氮的前5min，呼出气氮体积分数和氮排出量降低幅度最大（约93%），之后随着吸氧排氮时间的延长逐渐缓慢降低；

RESULTS : The nitrogen concentration and nitrogen output decreased sharply ( approximately 93 % ) in the first 5 min of denitrogenation , then decreased gradually with the prolonged denitrogenation time .

结论吸氧排氮60min和120min两种方案可以显著减少兔由地面上升到11000m高空减压时气泡的产生。

Conclusion Denitrogenation by inhalation of 100 % oxygen for 60 min and 120 min may reduce the generation of gas bubbles in rabbits when decompressed to an altitude of 11 000 m.

方法24只家兔随机分为对照组、吸氧排氮30、60和120min组4组。

Method Twenty-four rabbits were randomly divided into control group , 100 % oxygen inhalation 30 min group , 60 min group and 120 min group . The rabbits were anesthetized and ventilated by mechanical ventilator .

吸氧排氮对家兔氮排出量及减压气泡形成的影响

Nitrogen output and bubbles formation during decompression after denitrogenation in rabbits

目的探讨不同时间的吸氧排氮方案对高空减压病的预防效果。

Objective To explore the effect of different degrees of denitrogenation on decompression sickness .