Dose indicating device

A - Human Necessities – 61 – M

Patent

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Details

A61M 15/00 (2006.01)

Patent

CA 2203889

Dose indicating device to be provided on an inhalator, preferably a breath- actuated dry-powder inhalator, designed for containing multiple doses of a medicament containing an active substance, the inhalator having operating means comprising a manoeuvering element for loading one dose of the medicament to a dosing unit and providing said dose in a position for inhalation, wherein the dose indicating device is provided as a separate unit to be placed on the manoeuvering element of the inhalator and in that it comprises a first element to be provided on and around the outer wall surface of the manoeuvering element of the inhalator; a second element provided on and around the outer surface of said first element, the second element being rotatable relative to said first element; interrupting means provided on said first and second elements limiting the length of the relative movement between said elements; and registration/indication for registration of the movement of said manoeuvering element and thereby the feeding of a dose to the inhalation channel when the inhalator is activated for inhalation said registration/indication means being provided as parts of said first and second elements.

Dispositif indicateur de dose à monter sur un inhalateur, de préférence sur un inhalateur à poudre sèche déclenché par la respiration, conçu pour contenir plusieurs doses d'un médicament contenant une substance active. L'inhalateur est équipé d'un moyen de commande comportant un élément de manoeuvre qui permet le chargement d'une dose du médicament dans une unité de dosage et qui place ladite dose en position d'inhalation. Le dispositif indicateur de dose, qui constitue une unité distincte à monter sur l'élément de manoeuvre de l'inhalateur, comporte un premier élément à placer sur la paroi extérieure de l'élément de manoeuvre et autour de celle-ci, un deuxième élément placé sur la surface extérieure du premier élément et autour de celle-ci, le deuxième élément étant rotatif par rapport au premier, un dispositif interrupteur monté sur les premier et deuxième éléments limitant la durée du mouvement entre les deux éléments et un dispositif qui enregistre le mouvement de l'élément de manoeuvre, indique que ce mouvement est enregistré et verse une dose dans le canal d'inhalation lorsque l'inhalateur est activé, ledit dispositif enregistreur et indicateur étant intégré aux premier et deuxième éléments.

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