#$%^&*AU2019253803A120200625.pdf#####DEVICE FOR MIXING A BONE CEMENT WITH HOLLOW SPACE FOR MONOMER TRANSFER ABSTRACT The invention relates to a device for the production of a bone cement dough from a monomer liquid (6) and a cement powder (5) comprising a cartridge (1) with an internal space； a cartridge head (2) with a dispensing opening； a conveying plunger (3) that is arranged in the internal space of the cartridge (1) and is supported in the internal space of the cartridge (1) such that it is pushable in the direction of the dispensing opening； a dispensing plunger (4) between the dispensing opening and the conveying plunger (3) that is supported in the internal space of the cartridge (1) such that it is pushable in the direction of the dispensing opening； a first hollow space, in which the cement powder (5) is arranged； a second hollow space (7) that is bordered by the dispensing plunger (4) and the conveying plunger (3)； a fluid opening (8) that is arranged in the conveying plunger (3)； a feedthrough (9) that connects the first hollow space and the second hollow space (7) to each other, and a closure means (10) that is arranged on a rear side of the dispensing plunger (4), whereby the closure means (10) projects away from the dispensing plunger (4) and is situated at a distance from the fluid opening (8), whereby the fluid opening (8) is closable with the closure means (10), and whereby the closure means (10) is appropriately mobile in the closed fluid opening (8, 108) such that the fluid opening (8) stays closed, while the conveying plunger (3) is pushable further in the direction of the dispensing plunger (4). The invention also relates to a method for production of a bone cement dough using a device of this type. (Figure 1)1/11 52 50 54 56 32 34 61 36 3 28 58 48 40 8 3 28 4 44 -- 1 4 -- 42 261 40 5 -- 24 222 30 18 22 4 -~20 Figure 1
