Salin, Jukka,Tipuri, Ville,Pitkanen, Juha,Hakola, Sami,Kettula, Ville,Soininen, Ville,Skytta, Jarmo
申请号：
AU2017219052
公开号：
AU2017219052A1
申请日:
2017.08.24
申请国别(地区):
AU
年份:
2018
代理人:
摘要：
#$%^&*AU2017219052A120180315.pdf#####15 Abstract The invention relates to a method for monitoring breathing air of a person breathing via a face mask (8). In the method pressure of inhaled air and partial pressure of oxygen before oxygen enters in the face mask (8) are measured. A partial pressure of oxygen in lungs of the person is estimated on the basis of the measured pressure of inhaled air and the measured partial pressure of oxygen. Also at least one physical characteristics of lungs is taken into account. The estimated partial pressure of oxygen in lungs is compared with a threshold. An indication of impending hypoxia is provided to the person, if the comparison indicates that the estimated partial pressure of oxygen in lungs is at a level lower than the threshold. The invention also relates to an apparatus (6) for implementing the method. Fig. 13 6.33 21 Altimeter Pressure 2.1 2.2 Sensor OBOGS 5 5. .18 4.1 Valvee-----_--Face Conro 6Mask 5.1 4.2 Aonit8 4.3 8.2 5.3 Valve I ~Presur .33 6 Fig. 1 Exhaled air Memory 6.4,Memory 61C8 j je 612 Face -- - Control 6.11 M s 6.6 Vibrator 6 D A/D A/D A/D8. 6.4 6.5 6.9 V + 6 .3 6 .3 -- a b ne 3 e 3 Pressure 1 6.34 6.2 6.32 6.1 Fig. 2 1/1
