摘要
目的:探讨高原致人体缺氧的机制及高原辅助呼吸基础生理。方法:测量不同海拔高度的大气压、氧浓度并计算不同海拔高度的空气密度及氧分压;高原辅助模拟应用BIPAP呼吸模式,并观察对肺容量变化的影响。结果:随着海拔高度的增加,大气压、氧分压及空气密度明显下降;应用BIPAP呼吸模式可明显增加肺容量。结论:高原缺氧是由氧分压造成的;高原辅助模拟应用BIPAP呼吸模式可能对缓解高原缺氧产生作用。
Objective To study the mechanism of hypoxia caused by high altitudes and the physiological basis of the respirator used for plateau areas.Methods The atmospheric pressure and the oxygen concentration as well as the air density and the partial pressure of oxygen at different altitudes were measured and calculated;the BIPAP respiration model was used as the auxiliary respirator simulator for plateau areas with the corresponding changes of the lung volume being observed.Results The atmospheric pressure,the air density and the partial pressure of oxygen declined dramatically with the increasing altitudes;the BIPAP respiration model could significantly increase the lung capacity.Conclusion Hypoxia in plateau areas is caused by the partial pressure of oxygen;the BIPAP respiration model can have an effect on alleviating hypoxia.
出处
《医疗卫生装备》
CAS
2010年第8期22-23,36,共3页
Chinese Medical Equipment Journal
基金
全军医学科学技术研究"十一五"计划资助课题(08G007)
关键词
高原
呼吸机
生理
plateau
respirator
physiological
