Insufflation-exsufflation system for removal of...

A - Human Necessities – 61 – M

Patent

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A61M 16/00 (2006.01) A61F 5/00 (2006.01) A62B 7/00 (2006.01) A62B 7/04 (2006.01) A63B 23/18 (2006.01) F16K 31/02 (2006.01) F16K 31/26 (2006.01)

Patent

CA 2537353

An improved insufflation-exsufflation system for removal of broncho-pulmonary secretions with automatic triggering of inhalation phase includes a conduit for connection to a patient~s airway; a pressure source with a positive pressure port and a negative pressure port; a switching device selectively connecting the conduit to the positive pressure port, the negative pressure port and the dwell port; the sensor system for sensing an inhalation by the patient; and a controller system for driving the switching device to connect the conduits sequentially to the positive port, the negative port and the dwell port and to return again to the positive port in response to the sensor system sensing an inhalation by the patient while the conduit is connected to the dwell port.

L'invention concerne un système d'insufflation/exsufflation amélioré destiné à éliminer les sécrétions broncho-pulmonaires avec déclenchement automatique de la phase d'inhalation. Ce système comprend un conduit destiné à être raccordé aux voies respiratoires d'un patient, une source de pression pourvue d'un orifice de pression positive et d'un orifice de pression négative, un dispositif de raccordement permettant de raccorder sélectivement le conduit à l'orifice de pression positive, à l'orifice de pression négative et à un orifice de pression atmosphérique, un système de détection destiné à détecter une inhalation du patient, ainsi qu'un système de commande servant à commander le dispositif de raccordement et permettant de raccorder successivement les conduits à l'orifice de pression positive, à l'orifice de pression négative et à l'orifice de pression atmosphérique, et de revenir à l'orifice de pression positive en réponse à la détection d'une inhalation du patient par le système de détection pendant que le conduit est raccordé à l'orifice de pression atmosphérique.

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