Powder Inhaler and Powder Inhalation Set
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Accused Products
Abstract
The invention relates to a powder inhaler and to a powder inhaler set that contains the powder inhaler. The powder inhaler comprises two half-shells (3, 4), which are connected to each other by means of at least one film hinge and are formed as a single piece. In a joined arrangement, the two half-shells (3, 4) enclose an air inlet region, a powder deposition region and powder release region, and an outlet region, through which regions a fluid path extends, wherein at least one of the half-shells (3, 4) has at least one air inlet opening (8) in the air inlet region. Furthermore, one of the half-shells (3, 4) has at least one powder-accommodating recess (9) in the powder deposition region and powder release region, while the outlet region has at least one deagglomeration structure (17, 17′) and an outlet for aerosol, which outlet is formed by the half-shells (3, 4).
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Citations
34 Claims
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1-10. -10. (canceled)
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11. A powder inhaler (1), comprising:
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a first half shell and a second half shell (3, 4) that are connected to each other by at least one film hinge (16), the first and second half shells and the at least one hinge formed as one piece, wherein the first and second half shells (3, 4) in a joined arrangement, in which the first and second half shells are folded onto each other, enclose an air inlet area, a powder deposition and release area, and an outlet area through which a fluid path is extending; wherein at least one of the first and second half shells (3, 4) in the air inlet area comprises at least one air inlet opening (8); wherein the first half shell comprises one or more powder receiving depressions (9) in the powder deposition and release area, wherein the one or more powder receiving depressions (9) are configured to receive a depression (101) of a blister element (100) dimensioned to be received in the powder inhaler (1), the blister element comprising a support film in which the at least one the depression (101) containing at least one active ingredient powder that is inhalable is formed and comprising a cover plate closing off the depression (101); wherein the outlet area comprises one or more de-agglomeration structures (17, 17′
) and an outlet for aerosol that is formed by the first and second half shells (3, 4);wherein the first and second half shells (3, 4) are flat and comprise an elongate substantially rectangular, trapezoidal, drop-shaped or oval base that is rimmed by sidewalls and a wall section that is opposite the outlet; wherein the at least one air inlet opening (8) is arranged on the wall section (31, 41); wherein on at least one of the first and second half shells (3, 4) two or more guide webs (6) are provided and extend in a fan shape from the wall section (31, 41) and/or from the sidewalls adjacent to the wall section all the way to the at least one powder receiving depression (9), wherein the guide webs (6) on the at least one of the first and second half shells (3, 4) have a height extending all the way to the other half shell (3, 4) or to the guide webs (6) provided on the other half shell (3, 4), wherein two side by side neighboring guide webs (6) form an air supply channel and delimit the fluid path in the air inlet area, respectively, wherein the air supply channels each comprise a cross-section that is tapering toward the one or more powder receiving depressions (9); wherein the one or more powder receiving depressions (9) are framed along the fluid path on two sides by guide walls (7) which extend away from the guide webs (6) that are the outermost guide webs of the fan shape and lead to the one or more powder depressions (9); wherein the powder inhaler is further configured such that; in the powder deposition and release area, the second half shell comprises, at a location which is positioned opposite the one or more powder receiving depressions (9), a plunger (10) that is elastically moveably inserted in the second half shell in the direction toward the one or more powder receiving depression (9), wherein the plunger (10) is a pricker for opening an active ingredient depression (101) of a blister element (100) when inserted into the powder inhaler (1), and/or on one of the first and second half shells (3, 4) one of the sidewalls at the level of the one or more powder receiving depressions (9) comprises a cutout (32′
) having a width and a height corresponding to a width and a height of a blister element (100) dimensioned to be received in the powder inhaler (1), wherein on the sidewall (32, 42) that, in the joined arrangement, is positioned above the cutout (32′
), the other one of the first and second half shells (3, 4) that does not have the cutout (32′
) comprises a projection (32″
) that closes off the cutout (32′
) when a blister element (100) is inserted into the powder inhaler (1). - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification