Inhaler for Powdery Substances, in particular Medicinal Substances
AssigneeSanofi
InventorAlfred von Schuckmann
Life of this patent
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Abstract
An inhaler for powdery, in particular medicinal, substances includes a suction air channel, which leads to a mouthpiece. The inhaler also has a storage chamber for storing the substance and a linearly moving dosing chamber for apportioning and distributing a specified amount of substance from the storage chamber to a transfer point to the suction air flow. The novel inhaler represents a structurally simple solution that makes it possible to eliminate adding an external air flow. To this end, a component of the suction air flow, which is located in the direction of extension of the dosing chamber, empties said dosing chamber.
Claims17
An inhaler for powdery substances, comprising:
- a mouthpiece and a suction air channel leading to said mouthpiece;
- a storage chamber for storing therein the powdery substance, said storage chamber having a cover;
- a threaded closure cap;
- a linearly and rotationally movable dipping plunger having formed therein a dosing chamber for apportioning a specific amount of substance from said storage chamber and moving the amount of substance to a transfer position for transfer to a suction air stream leading to said mouthpiece;
- said dipping plunger and said dosing chamber being moved by advancing said dipping plunger through said cover of said storage chamber, said dipping plunger projecting through a rotary part, said rotary part being carried along by said threaded closure cap and including at least one rotor disposed below said cover of said storage chamber.
Dependencies are inferred from the claim text.