Nozzle and inhaler and method for producing a nozzle

Abstract

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)