Disposable powder medicament inhalation device with peel-off cover

Claim 1

A disposable device for the administration of powdered inhalation medicament to a patient, said device comprising: (a) a flat base member; (b) a raised upper portion attached to the base member defining a rigid medicament reservoir holding a unit dose of medicament in loose powder form, said reservoir acting as a mouthpiece; (c) an arm extending from the medicament reservoir defining an air passageway connecting an air inlet provided at one end of the arm with the medicament reservoir at the other end; (d) medicament outlet means comprising a group of openings provided in a wall of the medicament reservoir through which the medicament is inhaled; and (e) closure means comprising a cover sheet peelably attached to an outer surface of the device which seals both the openings of the air inlet means and the medicament outlet means; such that in use upon removal of the closure means and inhalation through the mouthpiece by a patient, air is drawn into the air inlet and along the air passageway into the reservoir causing medicament to be entrained in the air stream and inhaled by the patient.