Metering device for inhaling a powdery substance

Details Metering device for inhaling a powdery substance Metering device for inhaling a powdery substance

A - Human Necessities

61

M

A61M 15/00 (2006.01)

Patent

CA 2706569

The invention relates to a metering device (1) which can be activated by the suction airflow of the user for inhaling a powedery substance (2), in particular of medicinal type, which is arranged in a supply chamber (15) and can be brought out of there into an apparent discharge standby position (B) by removing the mouthpiece sealing cap (7) by means of a metering chamber (40) of a metering rod (33). The invention proposes providing piston- extensible tabs (77) for sealing off the metering chamber, particularly for the facilitated opening of the metering chamber (40).

L'invention concerne un dispositif de dosage (1) qui peut être activé par l'écoulement d'air aspiré par l'utilisateur pour l'inhalation d'une substance pulvérulente (2), en particulier de nature médicale, qui est disposée dans une chambre de réserve (15) et qui, lors de l'enlèvement du capuchon de fermeture (7) de la pièce d'embouchure, peut en être extraite et amenée au moyen d'une chambre de dosage (40) d'un barreau de dosage (33) dans une position évidente de vidage (B). En particulier pour faciliter l'ouverture de la chambre de dosage (40), l'invention propose de prévoir des pattes (77) prolongeables par piston pour refermer la chambre de dosage.

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