| 摘要 |
DEVICE FOR MIXING AND STORING POLYMETHYLMETHACRYLATE BONE CEMENT The invention relates to a device for the mixing of polymethylmethacrylate bone cement and for storage of the starting components of the bone cement, in particular of a monomer liquid and a cement powder, as starting components of the bone cement, the device comprising a cartridge (1) with an internal space (24) for mixing the bone cement that is closed on one side by means of a mobile dispensing plunger (2); a monomer container (60) for a monomer liquid and/or a connector (20) for attachment of a monomer container (60) for a monomer liquid such that the monomer container (60) can be opened appropriately in the device such that the monomer liquid flows from the monomer container (60) into the device; a connecting conduit (38) through which the monomer liquid can be guided into the internal space (24) of the cartridge (1), whereby a first hollow cylinder (42) is connected to the connecting conduit (38) and a second hollow cylinder (12) is connected, via a vacuum conduit (17), to the internal space (24) of the cartridge (1), whereby a pumping plunger (44) that can be shifted axially in the first hollow cylinder (42) is arranged in the first hollow cylinder (42) and a vacuum plunger (47) that can be shifted axially in the second hollow cylinder (12) is arranged in the second hollow cylinder (12), whereby, according to the invention, the pumping plunger (44) and the vacuum plunger (47) can be moved simultaneously. The invention further relates to a method for the mixing of polymethylmethacrylate bone cement. |
