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 medical, substances is formed with 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 a specified amount of substance from the storage chamber to a transfer point to the suction air flow. The aim of the invention is to obtain 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.
Claims10
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;
- a linearly 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;
- a closure cap for covering said mouthpiece, wherein when said closure cap is removed, said dipping plunger and said dosing chamber are moved into a ready-to-empty position;
- a docking structure connecting said dipping plunger and said closure cap, said docking structure including a latching means configured to disengage upon an overload force and to reengage when said closure cap is returned in place.
Dependencies are inferred from the claim text.