| 摘要 |
Apparatus for administering powdered drugs by inhalation comprises a housing 4, a mouthpiece 2 defining an outlet 8, a multi-dose cartridge (10) within the housing comprising a number of dosage units (11) each having one or more chambers sealed by a frangible membrane (22), a probe (30) and means to move the cartridge relative to the probe between actuations of the dispenser to prime the apparatus. The probe is movable to pierce the frangible membrane and enter one of the dosage units and comprises an air inlet (40) connected to atmosphere and an air outlet (41) connected to the mouthpiece such that when a user inhales at the mouthpiece, an airflow is created through the dosage unit to entrain the product therein. |
