Inhaler
First Claim
1. An inhaler for introducing a metered amount of pharmaceutically active powder or mixture of pharmaceutically active powders into a stream of air which is drawn in by a user, said stream of air and the pharmaceutically active powder or mixture of pharmaceutically active powders forming a powder/air mixture, said inhaler comprising:
- a device body;
a storage chamber for storing the powder;
an air inlet;
an outlet for the powder/air mixture;
an air channel connecting said air inlet with said outlet for the powder/air mixture;
a metering rod provided with a recess to measure a fixed amount of powder and to introduce said fixed amount of powder into said stream of air;
a locking device; and
an unlocking element;
said storage chamber including a first opening through which said metering rod enters the storage chamber;
said metering rod extending axially into said storage chamber through the first opening in said storage chamber;
said storage chamber and said metering rod being movable relative to each other such that, in a first relative position said recess of said metering rod is located in said storage chamber and in a second relative position said recess is located in said air channel;
said locking device holding said storage chamber and said metering rod in said first relative position; and
said unlocking element releasing the locking device.
2 Assignments
0 Petitions
Accused Products
Abstract
An inhaler for introducing a metered amount of solids, for example pharmaceutically active powders, into a stream of air drawn in by a user comprises a storage chamber into which a metering rod extends. The metering rod is provided with a metering recess which fixes the amount of solids to be mixed with the air stream. The storage chamber and the metering rod are movable relative to each other in such a manner that in a first relative position of the metering rod and the storage chamber the metering recess of the metering rod is located in the storage chamber, where it is filled with solids, and in a second relative position it is located in the air channel, where the solids are mixed with the air stream. The axial relative movement can be brought about by the rotation of two housing parts over sloping surfaces.
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Citations
28 Claims
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1. An inhaler for introducing a metered amount of pharmaceutically active powder or mixture of pharmaceutically active powders into a stream of air which is drawn in by a user, said stream of air and the pharmaceutically active powder or mixture of pharmaceutically active powders forming a powder/air mixture, said inhaler comprising:
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a device body; a storage chamber for storing the powder; an air inlet; an outlet for the powder/air mixture; an air channel connecting said air inlet with said outlet for the powder/air mixture; a metering rod provided with a recess to measure a fixed amount of powder and to introduce said fixed amount of powder into said stream of air; a locking device; and an unlocking element; said storage chamber including a first opening through which said metering rod enters the storage chamber; said metering rod extending axially into said storage chamber through the first opening in said storage chamber; said storage chamber and said metering rod being movable relative to each other such that, in a first relative position said recess of said metering rod is located in said storage chamber and in a second relative position said recess is located in said air channel;
said locking device holding said storage chamber and said metering rod in said first relative position; andsaid unlocking element releasing the locking device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An inhaler for introducing a metered amount of pharmaceutically active powder or mixture of pharmaceutically active powders into a stream of air which is drawn in by a user, said stream of air and the pharmaceutically active powder or mixture of pharmaceutically active powders forming a powder/air mixture, said inhaler comprising:
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a device body; a storage chamber for storing the powder; an air inlet; an outlet for the powder/air mixture; an air channel connecting said air inlet with said outlet for the powder/air mixture; a metering rod provided with a recess to measure a fixed amount of powder and to introduce said fixed amount of powder into said stream of air; said storage chamber including an opening through which said metering rod enters the storage chamber; said metering rod extending axially into said storage chamber through the opening in said storage chamber; said storage chamber and said metering rod being movable relative to each other such that, in a first relative position said recess of said metering rod is located in said storage chamber and in a second relative position said recess is located in said air channel; wherein said device body carries said metering rod, further comprising a housing part containing said storage chamber, said housing part and said device body being displaceable relative to each other from said first relative position of said storage chamber and said metering rod, upon axially pushing together said housing part and said device body, to said second relative position, upon axially moving apart said housing part and said device body; wherein said housing part and said device body are rotatable relative to each other;
wherein at least one sloping surface is provided on said housing part or on said device body;
wherein at least one counter-member is provided on the sloping surface;wherein the counter-member is guided on said sloping surface thereby converting the rotary movement of said housing part and said device body relative to each other into an axial movement. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification