Device for mixing and storing polymethylmethacrylate bone cement

A device for the mixing of polymethylmethacrylate bone cement and/or for storage of the starting components of the bone cement, the device comprising:

• a cartridge with an internal space for mixing bone cement that is closed on one side by means of a mobile dispensing plunger;
• a monomer container for a monomer liquid and/or a connector for attachment of a monomer container for a monomer liquid such that the monomer container is openable appropriately in the device such that the monomer liquid flows from the monomer container into the device;
• and
• a connecting conduit through which the monomer liquid can be guided into the internal space of the cartridge,
• wherein a first hollow cylinder is connected to the connecting conduit and a second hollow cylinder is connected, via a vacuum conduit, to the internal space of the cartridge, wherein a pumping plunger that can be shifted axially in the first hollow cylinder is arranged in the first hollow cylinder and a vacuum plunger that can be shifted axially in the second hollow cylinder is arranged in the second hollow cylinder, wherein the pumping plunger and the vacuum plunger can be moved simultaneously, and
• further wherein the pumping plunger and the vacuum plunger are rigidly connected to each other such that, when the pumping plunger is being slid into the first hollow cylinder, the rigidly connected vacuum plunger in the second hollow cylinder moves away from the connection to the vacuum conduit.