脉冲式高浓度单兵制氧机高原实地应用效果评价

Field Application Effect Evaluation of Pulsing High Concentration Individual Oxygen Generator on the Plateau

目的评价自主研发的脉冲式高浓度单兵制氧机在高原地区使用的抗缺氧效果。方法在急进高原人群中征集18名被试;在海拔3700、4200、5370 m的高原习服人群中,分别征集14、12、8名被试。在静息状态下记录相应的平原(1250 m)、高原吸氧前及吸氧后的血氧饱和度和心率数据,使用配对t检验进行统计学分析。结果使用该制氧机吸氧后,急进高原被试的血氧饱和度均值上升10.78%,HR均值下降11.06次/min,二者的差异均具有统计显著性(P<0.01);高原习服被试的血氧饱和度均值在三个不同海拔高度分别上升5.22%、6.33%、9.85%,HR均值分别下降14.14、6.83、15.11次/min,二者的差异均具有显著的统计学意义(P<0.01)。结论该制氧机抗缺氧效果显著,可迅速缓解缺氧状态,对急进高原和高原习服人员均适用。

Objective To evaluate the anti-hypoxia effect of pulsing high concentration individual oxygen generator in plateau areas. Methods We recruited 18 subjects who reached the plateau rapidly, and 14, 12 and 8 subjects who had accustomed to the plateau at the altitudes of 3700, 4200 and 5370 m respectively, in this study. Under the resting state, their pulse oxygen saturation(SpO2) and heart rate(HR) data were recorded when they were on the plain(1250 m), before and after oxygen inhalation on the plateau. The results were compared by statistical methods of paired t test. Results After oxygen intake by the oxygen generator,the average SpO2 significantly increased by 10.78%, the average HR significantly decreased by 11.06 bpm in the subjects who reached the plateau rapidly(P<0.01). Among subjects who had accustomed to the plateau at the three different altitudes, the average SpO2 significantly increased by 5.22%, 6.33% and 9.85%, and their HR significantly decreased by 14.14, 6.83 and 15.11 bpm, respectively(P<0.01). Conclusion The oxygen generator has remarkable anti-hypoxia effect, and can quickly relieve the hypoxia state, which is suitable for both rapidly reached and accustomed people to the plateau.