Dispensing device
AssigneeBoehringer Ingelheim International GmbH
InventorsMarc Rohrschneider, Matthias Vehdelmann, Stephen Dunne
Life of this patent
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Abstract
A dispensing device dispenses a liquid, in particular containing or formed of a drug, as a fine spray, that has a high fraction of small particles achieved by using a duct or slit having a flat cross section. Additionally or alternatively, the nozzle or duct has at least one sharp change in cross section and/or alternate sections with large and small cross-sectional areas.
Claims30
A dispensing device for dispensing a liquid, containing or formed of a drug, as a fine spray, the dispensing device comprising:
- a mouthpiece;
- a nozzle having at least one of a duct and a slit through which the liquid is dispensable,
- wherein the duct or slit has a flat cross section so that the ratio of the largest side to the smallest side of the flat cross section being at least 2.0.
A dispensing device for dispensing a liquid, in particular containing or consisting of a drug, as a fine spray, the dispensing device comprising:
- a nozzle having a duct through which the liquid is dispensable, wherein at least one of the nozzle and the duct has at least one of a sharp change in cross section and alternate sections with large and small cross sectional areas.
A dispensing device for dispensing a liquid, in particular containing or consisting of a drug, as a fine spray, the dispensing device comprising:
- a nozzle having at least one of a duct and a slit through which the liquid is dispensable, the duct or slit having a flat cross section, the ratio of the largest side to the smallest side of the flat cross section being at least 2.0, wherein the nozzle or duct comprises at least one of a sharp change in cross section, and alternate sections with large and small cross sectional areas.
Dependencies are inferred from the claim text.