#$%^&*AU2014202802A120150115.pdf#####MEDICAL SPRAYING DEVICE WITH PRESSURE RELIEF VALVE, AND METHOD FOR PRODUCING A SPRAY CONE Abstract A medical spraying device for irrigating a wound, in particular lavage system, comprises a liquid reservoir (16) for a medical irrigation liquid (18) or a connection for such a liquid reservoir (16) and a compressed gas reservoir (4), wherein the compressed gas reservoir (4) is connected or connectable via a pressure line (9) to the liquid reservoir (16), such that the irrigation liquid (18) can be pushed by the gas pressure of the compressed gas reservoir (4) acting on the irrigation liquid (18) through a nozzle (24, 52) in order to produce a spray cone (58), wherein at least one pressure relief valve (14, 15) is arranged in the wall of the pressure line (9) which opens outwardly and closes the pressure line (9) in accordance with the gas pressure from the compressed gas reservoir (4). Also provided is a method for producing a spray cone (58) of a medical irrigation liquid (18), in which a gas pressure is conveyed from a compressed gas reservoir (4) through a pressure line (9) into a liquid reservoir (16) of the medical irrigation liquid (18), and the irrigation liquid (18) is pushed out from the liquid reservoir (16) through a nozzle (24, 52) by means of the gas pressure, wherein the spray cone (58) is produced in that the irrigation liquid (18) flows through the nozzle (24, 52), wherein, if a limit pressure in the pressure line (9) is exceeded, at least one pressure relief valve (14, 15) in the pressure line (9) is opened and the compressed gas thus flows into the surrounding environment and the pressure in the pressure line (9) is reduced, preferably limited.1/2 38 36 34 30 26 9 15 14 10 9 8 1 2 4 6 2 4 32 221 28 922 18 9 Figure 1
