Nebulizer and spacer for the topical application of a liquid and/or solid to a surface

Nebulizer device (1, 10, 20, 30, 40, 50, 80, 90) for the topical application of a liquid to a surface, comprising:

• a container (2, 11, 21, 33, 41, 56, 91) comprising a propellant gas (57, 92) and a liquid (58, 93);
• an actuatable valve (12, 54, 94) attached to the container (2, 11, 21, 33, 41, 56, 91);
• and
• a nozzle (3, 13, 24, 34, 42, 55, 99) attached to the valve (12, 54, 94), designed for generating a stream or spray,
• wherein the valve (12, 54, 94):
• comprises a mixing chamber (53, 96) attached to the nozzle (3, 13, 24, 34, 42, 55, 99);
• and
• comprises a first (51, 97) and a second (52, 98) inlet attached to the mixing chamber (53, 96),
• wherein the mixing chamber (53, 96) is provided with a Venturi (59, 95) and is designed for forming a colloidal mixture before delivering the colloidal mixture to the nozzle (3, 13, 24, 34, 42, 55, 99),
• characterized in that the device (1, 10, 20, 30, 40, 50, 80, 90) is configured such that in use:
• the first (51, 97) inlet delivers the propellant gas (57, 92) to the mixing chamber (53, 96) and the second (52, 98) inlet delivers the liquid (58, 93) to the mixing chamber (53, 96);
• and
• the first inlet (51, 97) connects to the Venturi (59, 95) such that the liquid (58, 96) is delivered via the second inlet (52, 98) by using the suction effect of the Venturi (59, 95);
• and
• the colloidal mixture formed in the mixing chamber (53, 96) comprises a dispersed phase consisting of the liquid (58, 96) and a continuous phase consisting of the propellant gas (57, 92).