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1. WO2004054646 - INHALATEUR DE POUDRE SECHE A DOSE UNITAIRE

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

CLAIMS
1. An inhaler comprising:
a dispersion chamber;
a dose container containing a pharmaceutical between a first layer and a second layer; and
a surface of the inhaler adhered to at least a portion of the second layer, and with that surface moveable relative to the dispersion chamber, for opening the container.

2. The inhaler of claim 1 further wherein the dose container comprises a blister and the surface of the inhaler adhered to the blister includes a blister post, and further including a a mouthpiece associated with the dispersion chamber and with the blister post on a shear plate, and including a mouthpiece cover pivotable relative to the shear plate for moving the blister post away from the blister to open the blister.

3. The inhaler of claim 2 with the mouthpiece cover having a cap section adapted to fit over the mouthpiece, a base plate, and a shield plate including a blister shield dome covering the first layer of the blister.

4. The inhaler of claim 2 with the mouthpiece including a chamber tube connecting into the dispersion chamber within a mouthpiece cylinder attached onto a blister plate.

5. The inhaler of claim 4 wherein an outer perimeter area of the second layer of the blister is attached to the blister plate.

6. The inhaler of claim 2 further including a chamber plate overlying the shear plate, and with the chamber plate including a blister post clearance hole around the blister post, a dispersion chamber back wall, and a back air inlet slot.

7. The inhaler of claim 6 with the mouthpiece including a dispersion chamber front wall, and with the dispersion chamber formed by the dispersion chamber back wall of the chamber plate joined with the dispersion chamber front wall of the mouthpiece.

8. The inhaler of claim 7 with the mouthpiece including a front air inlet slot, with the back air inlet slot of the chamber plate and the front air inlet slot of the mouthpiece forming an air inlet passing around the blister post and connecting into the dispersion chamber.

9. The inhaler of claim 6 with the shear plate attached to the chamber plate and further including plate tab engageable by the mouthpiece cover.

10. The inhaler of claim 9 further including a tab tooth on the mouthpiece cover engageable against the plate tab, as the mouthpiece cover is moved away from the mouthpiece, to drive blister post on the shear plate away from the blister plate to open the blister.

11. The inhaler of claim 10 with a first end of the shear plate attached to a first end of the chamber plate, and with the plate tab on a second end of the chamber plate opposite the first end thereof, with the second end of the chamber plate moveably away from the chamber plate and the blister, upon engagement of the plate tab by the tab tooth of the mouthpiece cover.

12. A dry powder inhaler comprising: a first plate having an air passageway leading into a chamber;
a mouthpiece connecting with the chamber;
a dose container on the first plate;
a second plate having a surface or element attached to at least part of the dose container; and
a pivot connection for moving an end of the second plate away from the first plate, to cause the dose container to open.

13. A dry powder inhaler comprising:
a mouthpiece;
a blister supported on the mouthpiece;
a mouthpiece cover;
means for opening the blister by removing the mouthpiece cover from the mouthpiece .

14. A method for delivering a unit dose of a dry powder pharmaceutical, comprising the steps of:
pivoting a mouthpiece cover away from a mouthpiece of an inhaler;
moving a blister post adhered to a portion of the blister away from the blister with the pivoting movement of the mouthpiece;
shearing open the blister via the blister post;
allowing at least some of a dry powder pharmaceutical in the blister to deposit into an air passageway leading into a dispersion chamber;
drawing air through the dispersion chamber and air passageway and out through the mouthpiece .