Powder inhaler

A - Human Necessities – 61 – M

Patent

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Details

A61M 15/00 (2006.01)

Patent

CA 2500262

The invention relates to a powder inhaler (1) comprising a mouthpiece (2) for dispersing pharmaceutical medicinal formulations. Said powder inhaler (1) comprises an auxiliary source of energy in the form of a pressurized medium system (3) and a device for storing (6) a powdered formulation (7). A gaseous pressurized medium (8) released by the pressurized medium system (3) forms an aerosol together with the powdered formulation (7) such that the powder particles are supplied in a dispersed manner in the gaseous pressurized medium (8) when said pressurized medium system is actuated. The aim of the invention is to create a powder inhaler (1), by means of which a particle size and particle size distribution that are preferred for the inhalation as well as the highest possible proportion of fine particles are obtained. Said aim is achieved by a powder inhaler (1) that is characterized by the fact that a nozzle (10) through which the aerosol (9) flows before leaving the inhaler (1) is provided within the inhaler (1).

L'invention concerne un inhalateur de poudre (1) présentant un embout buccal (2) destiné à disperser des formulations de médicaments pharmaceutiques, lequel dispose d'une source d'énergie auxiliaire se présentant sous la forme d'un système à fluide de pression (3). Ledit inhalateur comprend un dispositif permettant de l'approvisionner (6) en formulation sous forme de poudre (7), lors de l'activation dudit système à fluide de pression, un fluide de pression (8) sous forme de gaz, libéré du système de fluide de pression (3) forme, en association avec la formulation de poudre (7), un aérosol (9), de sorte que les particules de poudre sont dispersées dans le fluide de pression (8) sous forme de gaz. Selon l'invention, l'inhalateur de poudre (1) ainsi produit, permet de réaliser une grandeur des particules et une répartition de la grandeur des particules adaptées à l'inhalation, et la plus grande partie des particules fines peut être réalisée au moyen dudit inhalateur, ceci étant réalisable grâce à l'utilisation dudit inhalateur de poudre (1). Ledit inhalateur est caractérisé en ce qu'il est pourvu d'une buse (10), à travers laquelle l'aérosol (9) s'écoule, de façon à sortir dudit inhalateur (1)

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