A stand-alone counter for a metered dose inhaler

A - Human Necessities – 61 – M

Patent

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A61M 15/00 (2006.01)

Patent

CA 2185323

A dose counter (40) for a metered dose inhaler comprising a medicament-containing vessel (30) and an actuator body (20) having a drug delivery outlet (25) is adapted for attachment either to the medicament containing vessel (30) or to the actuator (20). The dose counter (40) is provided with pressure sensing means (158, see Figs 2 and 3), counting means having a count display (43) and means (168, see Figs 2 and 3) to increment the count display (43) in direct response to the application of a predetermined pressure on the pressure sensing means. The invention does not rely on displacement triggering or the mechanical engagement between respective parts carried on the medicament- containing vessel and on the actuator housing.

Compteur (40) de doses destiné à un inhalateur doseur, comprenant un récipient (30) contenant un médicament, ainsi qu'un corps d'actionnement (20) possédant un orifice de sortie (25) délivrant un médicament, ledit compteur étant conçu pour être fixé soit sur le récipient (30) contenant le médicament, soit sur le dispositif d'actionnement (20). Ce compteur (40) est doté de moyens (158, voir fig. 2 et 3) de détection de la pression, de moyens de comptage pourvus d'un affichage (43) du compte, ainsi que de moyens (168, voir fig. 2 et 3) d'augmentation du compte affiché (43) en réponse directe à l'application d'une pression prédéterminée sur les moyens de détection de pression. L'invention ne repose pas sur l'amorçage du déplacement ni sur le contact mécanique entre les éléments respectifs portés par le récipient contenant le médicament et par le logement du dispositif d'actionnement.

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