NOZZLE AND INHALER AND METHOD FOR PRODUCING A NOZZLE
A nozzle ( 12 ), an inhaler (FIG. 1 ) with a nozzle ( 12 ) and a method for producing a nozzle are proposed. The nozzle comprises two holes ( 21 ) formed in a flat plate ( 22 ). Then, the plate ( 21 ) is deformed such that the axes of the holes intersect so that jets of fluids generated by the holes impinge with each other.
1 . In a nozzle ( 12 ) for generating at least two impinging jets ( 20 ), the nozzle ( 12 ) comprising at least two holes ( 21 ) for dispensing a fluid, in particular an inhalation formulation ( 2 ), in order to generate the jets ( 20 ) of fluid, the improvement which is
characterized in
that the nozzle ( 12 ) comprises a plate ( 22 ) with the holes ( 21 ), the plate ( 22 ) being deformed or the holes ( 21 ) being inclined in the flat plate ( 22 ) such that the axes ( 23 ) of the holes ( 21 ) intersect each other at an outlet side ( 24 ) of the nozzle ( 12 ).
2 . The nozzle according to claim 1 , characterized in that
the plate ( 22 ) is made of metal, in particular stainless steel, ceramic, silicon or plastic.
3 . The nozzle according to claim 1 , characterized in that the plate ( 22 ) is deformed by deep drawing or bending or folding.
4 . The nozzle according to claim 1 , characterized in that the plate ( 22 ) is thin, in particular has a thickness ( 31 ) of less than 200 μm, preferably of about 10 to 100 μm.
5 . The nozzle according to claim 1 , characterized in that the plate ( 22 ) is initially flat.
6 . The nozzle according to claim 1 , characterized in that the plate ( 22 ) is deformed after forming the holes ( 21 ).
7 . The nozzle according to claim 1 , characterized in that the holes ( 21 ) are formed by drilling, in particular laser drilling, or punching the plate ( 22 ).
8 . The nozzle according to claim 1 , characterized in that the plate ( 22 ) forms a depression ( 32 ), the holes ( 21 ) being located on opposite sides of the depression ( 32 ).
9 . The nozzle according to claim 1 , characterized in that the distance ( 30 ) between the holes ( 21 ) is about between 30 and 300 μm, preferably about between 50 and 200 μm.
10 . The nozzle according to claim 1 , characterized in that the holes ( 21 ) have respectively a hydraulic diameter of 2 to 50 μm, in particular of 3 to 30 μm, preferably between 5 and 15 μm.
11 . In an inhaler ( 1 ) for dispensing of an inhalation formulation ( 2 ) as an aerosol ( 14 ), which comprises:
a conveying means for conveying and/or nebulising the inhalation formulation ( 2 ), in particular for generating the aerosol ( 14 ), and
a nozzle ( 12 ),
the improvement which is
characterized in
that the nozzle ( 12 ) is as recited in claim 1 .
12 . (canceled)
13 . (canceled)
14 . (canceled)
15 . (canceled)