Resuscitation and inhalation device

A - Human Necessities – 62 – B

Patent

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137/1.54

A62B 9/02 (2006.01) A61M 16/00 (2006.01)

Patent

CA 2011609

A resuscitation and inhalation device which can be used alternatively in each of two modes. The flow of oxygen or gas is controlled by a control valve, itself controlled by a movable member acted upon by the pressure of oxygen or gas in a chamber after having flowed past the control valve. On meeting a preset maximum pressure, the valve member moves to close the control valve. The movable valve member is acted upon by a magnetic field which is adjustable, and the magnetic field strength sets the pressure at which the valve member moves. Oxygen or gas is admitted to the control valve by two alternative inlet valves, one for resuscitation with only oxygen or gas flowing through the mask, and one for inhalation, with a mixture of oxygen or gas and air or a second gas being fed through the mask.

Dispositif de réanimation et d'inhalation qu'on peut utiliser alternativement dans un mode et dans l'autre. Le flux d'oxygène ou de gaz est commandé par une soupape de contrôle, elle-même commandée par un obturateur mobile sur lequel agit la pression de l'oxygène ou du gaz contenu dans une chambre après s'être écoulé au-delà de la soupape de contrôle. Quand la pression atteint un maximum préétabli, l'obturateur de la soupape se met en position de fermeture. L'obturateur de la soupape réagit à un champ magnétique qui est réglable, et c'est par l'intensité du champ magnétique qu'on établit la pression à laquelle l'obturateur de la soupape se déplace. L'oxygène ou le gaz entre dans la soupape de contrôle par deux soupapes d' admission alternatives, l'une pour la réanimation avec seulement l'oxygène ou le gaz qui passe dans le masque, et l'autre pour l'inhalation avec un mélange d'oxygène ou de gaz et de l'air ou un deuxième gaz passant dans le masque.

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