Inhaler for powdery substances
First Claim
1. An inhaler for a powdery substance, in particular a medical substance, having:
- a substance storage chamber having a storage chamber wall,an air flow channel,a rod having a cross-hole forming a dosing chamber,wherein the dosing chamber is able to receive a defined amount of the powdery substance,wherein the dosing chamber can be displaced from a filling position into an emptying position,wherein in the emptying position the dosing chamber is located in the air flow channel, andwherein at least part of the storage chamber wall (28) is displaced in a direction of the rod when the inhaler is actuated.
2 Assignments
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Accused Products
Abstract
The invention relates to an inhalator (1) for powdery substances (33), especially medical substances. The inhalator comprises a substance reservoir chamber (27) and a metering chamber (34). The metering chamber is configured as a crossbore (35) of a rod (36) and can be displaced from a filling position (B) to a discharge position (E), in which discharge position (E) the metering chamber (34) is positioned in an air flow channel (21). The aim of the invention is to improve said inhalator, especially with regard to the filling or emptying of its metering chamber, even when particles of smallest dust-like grain size are used. For this purpose, at least a part of the reservoir chamber wall (28) is displaced in the direction of the rod (36) when the inhalator (1) is actuated.
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Citations
21 Claims
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1. An inhaler for a powdery substance, in particular a medical substance, having:
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a substance storage chamber having a storage chamber wall, an air flow channel, a rod having a cross-hole forming a dosing chamber, wherein the dosing chamber is able to receive a defined amount of the powdery substance, wherein the dosing chamber can be displaced from a filling position into an emptying position, wherein in the emptying position the dosing chamber is located in the air flow channel, and wherein at least part of the storage chamber wall (28) is displaced in a direction of the rod when the inhaler is actuated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An inhaler for a powdery substance, in particular a medical substance, having:
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a substance storage chamber, an air flow channel, a rod having a plurality of cross-holes, the cross-holes being located one after the other on the rod, each cross-hole forming a dosing chamber, wherein each dosing chamber can receive a defined amount of the powdery substance, wherein each dosing chamber can be displaced from a filling position into an emptying position, wherein in the emptying position the dosing chamber is located in the air flow channel, and wherein the dosing chambers can move into the emptying position one after the other during a discharge actuation and can be blown out one by one by positive air pressure in the air flow channel. - View Dependent Claims (21)
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Specification