Patent ID: 7451761
Filing Date: 2008-11-18
Classification: A61M

Abstract:
1. A dry powder inhaler with a multi-dose dry powder package for dispensing pharmaceutical grade formulations of inhalable dry powder, comprising: an inhaler housing; a blister package held in the housing, the blister package comprising a plurality of spaced apart sealed blisters thereon, each blister having a projecting ceiling and a floor defining a blister channel therebetween, the blister channel comprising a dry powder therein; a blister indexing mechanism in communication with the blister package to position a blister in a dispensing position; a movable blade cartridge mounted in the housing configured to hold a blade at a forward portion thereof; and an extendable mouthpiece attached to the movable blade cartridge, wherein, in operation, a user extends the mouthpiece outward and then retracts the mouthpiece inward to cause the blister package to advance thereby positioning a blister in the dispensing position in the inhaler, the retraction causing the blade cartridge to move the blade lengthwise across a blister ceiling held in the dispensing position in the inhaler to open the blister held in the dispensing position.