System and method for monitoring passenger oxygen saturation...

A - Human Necessities – 61 – M

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A61M 16/00 (2006.01) A61B 5/1455 (2006.01) A62B 7/00 (2006.01) A62B 7/14 (2006.01) A62B 9/00 (2006.01) B64D 13/06 (2006.01)

Patent

CA 2522943

A noninvasive system for monitoring the oxygen saturation level of a person subjected to reduced atmospheric pressure for avoiding hypoxemia. The system monitors a person's oxygen saturation level (26, 126), comparing the saturation level to a predetermined level (41). When the measured saturation level is less than the predetermined level, the person is then supplied with an oxygen mixture (47, 147) for increasing the subject's oxygen saturation level to a safe level. The person's exposed reduced atmospheric pressure is also compared with a predetermined range of pressure levels (74, 89). If this predetermined range of pressure levels is exceeded or maintained for a predetermined time duration, the person is then supplied with an oxygen mixture (88). Additionally, a device (400) is provided for performing oxygen flight planning calculations for estimating oxygen usage for a predetermined flight plan that is based on the above system.

L'invention concerne un système non effractif permettant de surveiller le niveau de saturation en oxygène d'un individu soumis à une pression atmosphérique réduite afin d'éviter une hypoxémie. Le système de l'invention surveille le niveau de saturation en oxygène (26, 126) d'un individu, par comparaison du niveau de saturation à un niveau prédéterminé (41). Quand le niveau de saturation mesuré est inférieur au niveau prédéterminé, un mélange d'oxygène (47, 147) est fourni à l'individu, ce mélange permettant d'augmenter son niveau de saturation en oxygène de façon à obtenir un niveau sûr. La pression atmosphérique réduite exposée d'un individu est également comparée à une plage prédéterminée de niveaux de pression (74, 89). Si cette plage prédéterminée de niveaux de pression est dépassée ou maintenue pendant une durée prédéterminée, un mélange d'oxygène (88) est alors fourni à l'individu. L'invention concerne en outre un dispositif (400) permettant d'effectuer des calculs de planification de vol associés aux besoins en oxygène afin d'estimer les besoins en oxygène pour un plan de vol prédéterminé basé sur ledit système.

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