An inhaler for delivering metered doses of powdered medicament

A - Human Necessities – 61 – M

Patent

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A61M 15/00 (2006.01)

Patent

CA 2460904

An inhaler for delivering metered doses of powdered medicament, the inhaler having a plurality of compartments spaced in an array and each arranged to contain a metered dose of the medicament, a lever to displace the compartments one by one into line with an inhalation aperture that constitutes a mouthpiece, each compartment including inner and outer edges, the plurality of compartments being closed by a sealing layer, the inhaler further having a mechanism adapted to lift the sealing layer off the inner and outer edges of the compartment to open an air passageway defined by the compartment and the sealing layer so that, in use, on inhalation through the mouthpiece, air flow in the air flow passageway picks up and entrains the powder in the compartment to be drawn with the air out of the inhaler through the mouthpiece.

Inhaleur servant à administrer des dosages déterminés de médicaments en poudre et possédant une pluralité de compartiments espacés dans un ensemble, conçus chacun pour contenir une dose de ce médicament, un levier servant à déplacer ces compartiments un par un dans une ligne comportant une ouverture d'inhalation adaptée à la bouche, chaque compartiment comprenant des bords intérieurs et extérieurs, la pluralité de compartiments étant fermée par une couche d'étanchéité. Cet inhaleur possède, de plus, un mécanisme permettant de soulever cette couche d'étanchéité afin de l'éloigner des bords intérieurs et extérieurs du compartiment et d'ouvrir un passage d'air défini par ce compartiment et cette couche d'étanchéité, de sorte qu'en utilisation, au moment de l'inhalation effectuée par l'intermédiaire de la pièce buccale, l'air circulant dans le passage rassemble et entraîne la poudre contenue dans le compartiment afin qu'elle soit aspirée au moyen de ladite pièce buccale.

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