| abstract |
A dispensing device (1) is proposed for dispensing a liquid (2) , in particular containing or consisting of a drug, as a fine spray (3) . A high fraction of small particles can be achieved by using a duct (5) or slit (22) having a flat cross section. Additionally or alternatively, the nozzle or duct comprises at least one sharp change in cross section and/or alternate sections (13,14) with large and small cross sectional areas . |