INHALATION DEVICE

摘要

PCT No. PCT/GB91/01983 Sec. 371 Date May 11, 1993 Sec. 102(e) Date May 11, 1993 PCT Filed Nov. 12, 1991 PCT Pub. No. WO92/08509 PCT Pub. Date May 29, 1992.An inhalation device for administration of aerosolized medicament to the respiratory system of a patient comprising a housing defining a patient port and an air inlet, the housing containing means for dispensing a dose of aerosolized medicament, an inhalation-activatable triggering mechanism for initiating the dispensing means, and reset means. The triggering mechanism comprises a vane mounted for pivotable movement between closed and open positions, the vane being positioned within the patient port such that inhalation through the patient port generates an airflow from the air inlet to the patient port causing pivotable movement of the vane. The device further includes an activator component moveable between a restrained position and a dispensing position which movement causes dispensing of medicament from the dispensing means, the activator component being biased towards its dispensing position.