Electronic dose counter for an inhaler

Details Electronic dose counter for an inhaler Electronic dose counter for an inhaler

A - Human Necessities

61

M

A61M 15/00 (2006.01)

Patent

CA 2605571

The present invention relates to an electronic dose counter device for an inhaler that is capable of positively registering when a dose is delivered from a medicament container placed in the inhaler, and in particular inhalers that are manually pressed in order to deliver a dose. A general problem is how to avoid false registrations of doses and tolerance differences that may lead to such false registrations. According to the invention, this problem is solved in that the dose counter device comprises device trigger means provided in an electronic circuit on a distal end of a dose containing canister, that the electronic circuit further comprises an acoustic sensing means also provided on the distal end of the canister, and force sensing means adapted to activate the acoustic sensing means when a force is applied to the distal end of the canister and in that the acoustic sensing means registers a dose delivery when it picks up a sound. In this manner, the acoustic sensing means functions to only register delivered doses regardless of the mechanical design of the inhaler nor any tolerance differences.

La présente invention concerne un dispositif doseur pour inhalateur qui permet d'enregistrer, lorsqu'une dose est administrée, et qui est conçu pour être monté à l'extrémité distale dudit inhalateur (1). Ce dernier présente une cartouche (6) comprise dans un logement de l'inhalateur (2). L'appareil est caractérisé en ce que le dispositif doseur comporte un dispositif de déclenchement situé dans un circuit électronique sur l'extrémité distale de ladite cartouche, le circuit électronique englobe un dispositif de détection acoustique situé sur l'extrémité distale de la cartouche et un dispositif de détection de force est élaboré pour activer le dispositif de détection acoustique, lorsqu'une force est appliquée au niveau de l'extrémité distale de la cartouche et, enfin, le dispositif de détection acoustique sert à enregistrer l'administration de dose, lorsqu'il décèle un son.

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