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US 5,857,457 AGranted
Powder inhaler with remnant mover and chamber
AssigneeOrion-yhtyma Oy
InventorJukka Hyppola
Life of this patent
Estimating the term…
Abstract
This device is intended for the dispensing of a powdered medication by inhalation. The device includes a powder container (1), an air channel (2), and a metering strip (4) equipped with a dosing recess (3). The metering strip (4) can be moved along a flat surface (5) from a filling position, in which the dosing recess (3) is filled with powder coming from the container (1), to an inhalation position, in which the dosing recess (3) is in the air channel (2).
Claims12
A powder inhaler, comprising
- a powder container (1),
- an air channel (2) through which air is drawn via a mouthpiece, and
- a metering strip (4) that has a leading edge (14) and is equipped with a dosing recess (3),
- wherein said dosing recess (3) has a bottom, and wherein said metering strip (4) is disposed on a flat surface (5) and is movable in its longitudinal direction along said flat surface (5) between a first position in which said dosing recess (3) is filled with a powder coming from said container (1), and a second position in which said filled dosing recess (3) is brought into said air channel (2),
- wherein the powder is maintained in said dosing recess (3) by the support of said bottom, and wherein said air channel (2) is directed to introduce an air flow into said dosing recess (3) during inhalation whereby the powder is released directly from said dosing recess (3), and
- an aperture (6) for remnants,
- wherein said leading edge (14) of said metering strip (4) travels towards and over said aperture (6) for remnants when said metering strip (4) moves between the filling and the inhalation positions, at which time any powder remaining between said leading edge (14) of said metering strip (4) and said flat surface (5) is moved by said leading edge (14) to fall through said aperture (6) for remnants.
4 more elements
A powder inhaler, comprising
- a powder container (1),
- an air channel (2) through which air is drawn via a mouthpiece, and
- a metering strip (4) that has a leading edge (14) and is equipped with a dosing recess (3),
- wherein said dosing recess (3) extends through said metering strip (4), and wherein said metering strip (4) is disposed on a flat surface (5) and is movable in its longitudinal direction along said flat surface (5) between a first position in which said dosing recess (3) is filled with a powder coming from said container (1), and a second position in which said filled dosing recess (3) is brought into said air channel (2),
- wherein the powder is maintained in said dosing recess (3) by the support of said flat surface (5) which constitutes a bottom of said dosing recess (3), and wherein said air channel (2) is directed to introduce an air flow into said dosing recess (3) during inhalation whereby the powder is released directly from said dosing recess (3), and
- an aperture (6) for remnants,
- wherein said leading edge (14) of said metering strip (4) travels towards and over said aperture (6) for remnants when said metering strip (4) moves between the filling and the inhalation positions, at which time any powder remaining between said leading edge (14) of said metering strip (4) and said flat surface Is moved by said leading edge (14) to fall through said aperture (6) for remnants.
4 more elements
Dependencies are inferred from the claim text.