发明名称 Nozzle and inhaler and method for producing a nozzle
摘要 A nozzle, an inhaler with a nozzle and a method for producing a nozzle are proposed, which nozzle comprises two holes formed in a flat plate which plate is then deformed such that the axes of the holes intersect so that jets of fluids moving through the holes impinge with each other.
申请公布号 US9259540(B2) 申请公布日期 2016.02.16
申请号 US201314078753 申请日期 2013.11.13
申请人 Boehringer Ingelheim Pharma GmbH & Co. KG 发明人 Dunne Stephen Terence
分类号 A61M11/00;A61M15/00;B05B1/26;A61M11/02;A61M11/04;B05B11/00 主分类号 A61M11/00
代理机构 代理人 Morris Michael P.;Devlin Mary-Ellen M.
主权项 1. A nozzle for dispensing a fluid for inhalation, the nozzle comprising: a plate having only two holes, wherein the two holes are circular in cross section, have a hydraulic diameter between 5 and 15 μm, are formed perpendicular to a surface of the plate, taper towards an outlet side of the nozzle forming a natural cone with an essentially constant taper angle of about 5 to 20 degrees from an inlet side of the nozzle to the inlet side of the nozzle such that a diameter of the two holes at the outlet side is smaller than a diameter of the two holes at an inlet side of the nozzle wherein, the plate is deformed having a curved depression between two generally flat regions of the plate such that respective axes of the two holes intersect with each other at the outlet side of the nozzle so that respective jets of fluid exiting the two holes impact with each other at a position of impact when the fluid is dispensed, and the diameters and orientation of the two holes is such that impact of the respective jets of fluid generate an aerosol of a shape that expands significantly as a function of an increasing distance from the position of impact such that the resulting aerosol is suitable for patient inhalation of the dispensed fluid.
地址 Ingelheim am Rhein DE