| 摘要 |
A dry powder inhaler comprises; a cyclone chamber having a cyclonechamber outlet 20 extending substantially axially therefrom; a mouthpiece channel 26 having a central axis; and a plenum portion 58 connecting said cyclone chamber outlet 20 and said mouthpiece channel, the mouthpiece channel axis Am being offset from, and making a non-parallel angle with, the axis of the cyclone outlet Ac such that in use air exits the cyclone outlet 20 at least partly tangentially into the mouthpiece 28. Also disclosed is a blister pack 200 for use with a dry powder inhaler and including a dose of powder for inhalation, the blister comprising: a base part 202 comprising at least one chamber 204,206; a grommet cover 208 extending partly over said chamber and defining an aperture 212, 214 above the chamber; and a protective layer 210 covering at least said aperture, wherein the edge of the grommet cover 208 defining the aperture 212, 214 is compliant so as in use to form a seal around a tube passing through the aperture. |
