Powder-liquid bone cement mixer with compressed gas connection

A device for producing a bone cement paste from a monomer liquid and a cement powder as parent components of the bone cement paste, the device comprising:

• a cartridge with a cylindrical interior chamber for mixing the parent components, whereby the cylindrical interior chamber of the cartridge is closed on a front side up to a delivery opening for expelling the bone cement paste from the cylindrical interior chamber,
• a delivery plunger which is arranged in the cylindrical interior chamber of the cartridge and which is supported in a linearly movable manner in a direction of the delivery opening,
• the cement powder which is arranged in the cylindrical interior chamber of the cartridge between the delivery opening and the delivery plunger,
• a monomer receptacle with an interior chamber in which a monomer liquid container containing the monomer liquid is contained, whereby in the monomer receptacle a conveying plunger is arranged that is movable in the longitudinal direction of the monomer receptacle,
• a compressed gas connection which is directly connected or connected via a compressed gas line in a pressure-tight manner with the interior chamber of the monomer receptacle, whereby the conveying plunger is arranged between the monomer liquid container and the compressed gas connection or the compressed gas line in the monomer receptacle, and
• a connection which connects the interior chamber of the monomer receptacle and the cylindrical interior chamber of the cartridge which is permeable to the monomer liquid but impermeable to the cement powder, whereby the monomer liquid container is arranged between the conveying plunger and the connection, wherein a movement of the conveying plunger presses the monomer liquid through the connection into the cylindrical interior chamber of the cartridge.