Patent ID: 8499758

Claim:
An inhalation-activatable device for administration of medicament in powder form to the respiratory system of a user comprising a housing defining air inlet(s) and a mouthpiece, and a cap for covering the mouthpiece, wherein the housing contains a dose carrier with medicament in powder form arranged in plurality of dose units and a breath activated mechanism comprising an energy storing means, a triggering means, a piercing means and a reset means, in which the triggering means comprises a Breath Actuated Mechanism (BAM) flap mounted for movement between neutral or inward position, the BAM flap being positioned away from the mouthpiece and substantially away from the air inlet(s) so as not to close the air inlet(s) in its neutral or inward position, such that inhalation through the mouthpiece causes movement of the BAM flap to its inward position, and other components movable relative to the position of the BAM flap such that when the BAM flap is in the inward position, a dose unit of the plurality of dose units on the dose carrier is punctured by a piercing means to deliver the medicament in powder form through the mouthpiece to the respiratory system of the user, wherein the inhalation-activatable device further comprises an air passageway, wherein the air passageway comprises a cyclone head, a conical region, a throat region and vanes at the end of the air passageway.