The invention relates to a medical spraying device for irrigating a wound, in particular lavage system, comprising a liquid reservoir for a medical irrigation liquid or a connection for such a liquid reservoir and an arrangement for applying pressure to the medical irrigation liquid, such that the irrigation liquid can be pushed through a nozzle by the pressure acting on the irrigation liquid in order to produce a spray cone, wherein the nozzle has a plurality of openings, which are arranged at an angle to one another in such a way that the irrigation liquid jets exiting from the openings meet in an atomisation space and/or a discharge opening of the nozzle and thus produce the spray cone from the atomised irrigation liquid. The invention also relates to the use of such a medical spraying device for producing a spray cone for debriding infected tissue. The invention also relates to a method for producing a spray cone of a medical irrigation liquid, in which the irrigation liquid is pushed through a plurality of openings in a nozzle and the irrigation liquid jets thus produced are shot towards one another at such a flow rate and at such an angle that the irrigation liquid jets atomise in front of the nozzle and form a spray cone.
