Patent ID: 9579474
Date: 2017-02-28
CPC Classifications: A61M,G06M

Claim:
1. A dose counter for counting doses of medicament dispensed by or remaining in a metered-dose inhaler, the dose counter comprising: a rotatably mounted gear wheel having a circular arrangement of ratchet teeth; a display coupled to the gear wheel, the display having a visible array of dose counting indicia indexable in response to rotary motion of the gear wheel; and an actuator mechanism having a driver for rotatably driving the gear wheel in response to the dispensation of a medicament dose, the driver being arranged to engage the ratchet teeth of the gear wheel, wherein the actuator mechanism comprises a pivotally mounted lever having an input portion, the lever being arranged to amplify a linear stroke at the input portion such that a linear stroke of the driver exceeds the linear input stroke, and