Evaluation of the physiological test in hypobaric chamber on new type oxygen supply system

• DOI: 10.3760/cma.j.issn.1007-6239.2012.02.003
• Publication Date: 2012-06-15
• Authors: Xiaopeng Liu; Huajun Xiao; Bin Zang; Zhao Gu; Guiyou Wang; Weiru Shi; Liyong Shi; Lihao Xue; Li-shan Fu; Juan Chen
• Keywords: Hypobaric chamber; Breathing gas; Hypoxia

Objective To evaluate the protection performances of a new type oxygen supply system against hypoxia. Methods Totally 6 rounds test were taken in hypobaric chamber and rapid decompression chamber.A dummy was applied tests of:① conventional performance under altitude simulation from ground to 10.0 km; ② pressurized 13.0 17.0 ③ km order ensure safety physiological tests.Four volunteers with individual equipment underwent of:④ continuous for 4.0 h;⑤ at 15.0 ⑥ km. Results The partial pressure provided by over 21.0 kPa (under 12.0 km) (above km).The inspiration resistance respectively less than 490 Pa 627 Pa,that corresponding dummy's respiration ventilation volume 20 L/min 30 L/min.The peak value 7.4 kPa. Conclusions can provide hypoxia pilots km.

Key words: Oxygen; Respiratory protective devices; Decompression, explosive; Anoxia; Atmosphere exposure chambers; Evaluation studies