Aerosol inhalation system and interface accessory for use...

A - Human Necessities – 61 – M

Patent

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Details

A61M 11/00 (2006.01)

Patent

CA 2606432

According to one aspect of the present invention, an accessory for an aerosol inhalation system includes a main conduit body having an outlet end for placement close to a mouth of a patient, and first and second leg conduits that are in fluid communication with the main conduit body. The accessory further includes a holding chamber having a first compartment and a second compartment separated from the first compartment, with the first compartment being sealingly and fluidly coupled to the one port associated with the first leg conduit and the- second compartment being sealingly and fluidly coupled to a port associated with the second leg conduit. An arrangement of valves is provided such that when the patient exhales, the first leg conduit is sealingly closed off from the main conduit body and the second leg conduit resulting in the aerosol particles flowing into and being held in the first compartment of the holding chamber. Conversely, when the patient inhales, the first leg conduit is opened to the main conduit body and in fluid communication with the second leg conduit resulting in the aerosol particles delivered through the first port being delivered to the patient.

L'invention concerne, dans une forme de réalisation, un accessoire destiné à un système aérosol d'inhalation qui comprend un corps principal de tuyau comportant une extrémité de sortie se plaçant à proximité de la bouche d'un patient, et une première et une seconde branche de tuyau qui sont en communication fluidique avec le corps principal de tuyau. L'accessoire comprend de plus une chambre de retenue comportant un premier compartiment et un second compartiment, séparé du premier. Le premier compartiment est couplé hermétiquement et de manière fluidique à l'orifice associé à la première branche du tuyau, et le second compartiment est couplé hermétiquement et de manière fluidique à l'orifice associé à la seconde branche du tuyau. Un dispositif de soupapes prévu est conçu de sorte que lorsque le patient expire, la première branche du tuyau est hermétiquement isolée du corps principal du tuyau et de la seconde branche du tuyau, ce qui a pour effet d'entraîner les particules aérosol dans le premier compartiment de la chambre de retenue et de les maintenir dans celui-ci. Inversement, lorsque le patient inspire, la première branche du tuyau est ouverte par rapport au corps du tuyau principal et en communication fluidique avec la seconde branche du tuyau, ce qui a pour effet d'administrer les particules aérosol au patient par l'intermédiaire du premier orifice.

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