Counter for use with a medicament dispenser

G - Physics – 06 – M

Patent

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Details

G06M 1/08 (2006.01) A61J 7/00 (2006.01) A61M 15/00 (2006.01) G06M 1/04 (2006.01)

Patent

CA 2644785

One aspect provides a dose counter (1) for use with a medicament dispenser which comprises a ratchet (50); a first count wheel (20) arranged to rotate about a first axis of rotation, said first count wheel including one or more ratchet drive receipt elements (24) arranged thereon for receipt of drive from said ratchet to rotate the first count wheel about said first axis of rotation; a second count wheel (30) arranged to rotate about the first axis of rotation, said second count wheel including a set of teeth (34) arranged annularly thereon; and a kick wheel (40) arranged to rotate about a second axis of rotation offset from the first axis of rotation, said kick wheel including a set of kick teeth (44) arranged annularly thereon and in meshed relationship with the teeth of the second count wheel such that rotary motion of the kick wheel results in rotary motion of the second count wheel. The first count wheel further includes at least one fixed index tooth (28a, 28b) arranged for intermittent meshing with the kick teeth of the kick wheel such that rotary motion of the kick wheel results from rotary motion of the first count wheel only when said intermittent meshing occurs.

La présente invention concerne un compteur de dose (1) à utiliser avec un distributeur de médicament qui comprend un rochet (50) ; un premier chaperon (20) conçu pour tourner autour d'un premier axe de rotation, ledit premier chaperon comprenant un ou plusieurs éléments de réception d'entraînement de rochet (24) disposés dessus pour recevoir l'entraînement dudit rochet afin de faire tourner le premier chaperon autour dudit premier axe de rotation ; un second chaperon (30) conçu pour tourner autour du premier axe de rotation, ledit second chaperon comprenant un ensemble de dents (34) disposé de façon annulaire dessus ; et une roue d'impulsion (40) conçue pour tourner autour d'un second axe de rotation décalé par rapport au premier axe de rotation, ladite roue d'impulsion comprenant un ensemble de dents d'impulsion (44) disposé de façon annulaire dessus et en relation d'engrenage avec les dents du second chaperon de façon à ce que le mouvement de rotation de la roue d'impulsion entraîne le mouvement de rotation du second chaperon. Le premier chaperon comprend en outre au moins une dent de distribution (28a, 28b) conçue pour s'engrener de façon intermittente avec les dents d'impulsion de la roue d'impulsion de façon à ce que le mouvement de rotation de la roue d'impulsion entraîne le mouvement de rotation du premier chaperon uniquement lorsque ledit engrenage intermittent se produit.

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