Patent ID: 9468729
Filing Date: 2016-10-18
CPC Classification: A61M,G16H

Claim Text:
1. A device for monitoring patient usage of a medicament inhaler having an exterior surface, the medicament inhaler being adapted to deliver doses of medicament, the medicament inhaler including an actuator and a medicament container, the device comprising: a) a housing releasably attachable to the exterior surface of the medicament inhaler, the housing being usable on the medicament inhaler without requiring any physical modifications to the medicament inhaler; and b) an optical dose counter included within the housing, the optical dose counter being configured to determine when a dose of medicament is being dispensed by the medicament inhaler by transmitting electromagnetic signals that penetrate the medicament inhaler from a position outside of the outermost surface of the medicament inhaler, the optical dose counter including: