An inhaler having an actuator for indexing and piercing a blister

Abstract From the Canadian patent

Inhalation device for oral or nasal delivery of medicament in powered form having a significantly simpler construction than known devices that is capable of , storing a relatively large number of blisters without any significant increase in , the overall size of the device, including a housing for a plurality of blisters, a , mouthpiece, an indexing wheel and an actuator to sequentially move each blister , into alignment with a blister piercing member said actuator also being , operable , to cause the blister piercing member to puncture the lid of an aligned blister, wherein the housing includes a chamber into which used blisters are fed wherein , said chamber is covered by a lid …