Mixing nozzle, application device, kit and method using the mixing nozzle or application device

A mixing nozzle for mixing at least a first liquid composition and a second liquid composition, the mixing nozzle being configured to be coupled to a body of a multi-component application device, optionally to a body of a two-component syringe assembly, for injection of a liquid composition, and said body being configured to separately store said at least first and second liquid compositions, wherein the mixing nozzle comprises:

• at least two fluid inlet channels for receiving the separately stored liquid compositions to be mixed,
• a mixing zone having at least one mixing channel for mixing the liquid compositions while they flow through the mixing channel, and
• an outlet channel connectable to an injection needle having a lumen extending along a first longitudinal axis (A),
• wherein said outlet channel of the mixing nozzle is fluidly connected or connectable with said inlet channels of the mixing nozzle by said mixing zone, and
• wherein said mixing zone is configured to change flow direction of a mixing flow from a first flow direction at least to a second flow direction,
• wherein said mixing channel
• comprises flow manipulation elements arranged alternating within the mixing channel for changing flow direction, wherein the flow manipulation elements are designed as ramps and flow splitters which cause flow split and at least partly back flow,
• and wherein said mixing channel
• extends at least partly or entirely alternating at least in a first direction and a second direction, and/or
• extends at least partly along an n-cornered contour, optionally along a hexagonal or an octagonal contour, and/or
• extends at least partly along a star-shaped contour,
• wherein at least one of said at least two fluid inlet channels has at least one segment extending at least partly arc-shaped around said first longitudinal axis (A) in a plane perpendicular to said first longitudinal axis (A),
• wherein at least one of said mixing channels comprises at least a first segment and a second segment, wherein the segment extends at least partly or entirely in radial direction to said first longitudinal axis (A), and the second segment extends arc-shaped around said first longitudinal axis (A) in a plane perpendicular to said first longitudinal axis (A).