Inhaler with a mixing channel for producing an aerosol to be inhaled

An inhaler with a mixing channel (1) for producing an aerosol to be inhaled, where the mixing channel has:

• an outlet (9) at one end that can be inserted in the mouth of a person in order to inhale the aerosol that is produced;
• at least one inlet (3) at its other end for drawing air into the mixing channel (1);
• and at least one injection zone (6) that lies between the inlet (3) and the outlet (9) and forms part of the channel wall, where the injection zone (6) has at least one nozzle orifice (10) in the channel wall for supplying a liquid, wherein an inner surface of the injection zone (6) is substantially flush at least with a portion of a mean surface curvature (22) of an inner surface of the channel wall (11) that is adjacent to it on the inlet end, where a possible height difference (17) between the inner surface of the injection zone (6) and that portion of the mean surface curvature (22) of the inner surface of the channel wall (11) that is adjacent to it is less than 1 mm or at most 100 μm or at most 20 μm, wherein the nozzle orifice defines a single lumen opening so that only the liquid passes through the orifice into the mixing channel in the form of one jet of dispersed droplets (13) per nozzle orifice (10) so as to entrain the droplets (13) with the stream of intake air and keep them separated in an end zone (8) between the injection zone (6) and the outlet (9) after the droplets (13) have been mixed with the stream of air to form the aerosol, the channel wall only having the at least one single lumen nozzle orifice for the liquid, wherein the at least one single lumen nozzle orifice has a peripheral edge contiguous with the channel wall.