Vacuum mixing device with operating element, pressure pump, and vacuum pump for mixing polymethylmethacrylate bone cement

摘要

#$%^&*AU2016269446A120170622.pdf#####VACUUM MIXING DEVICE WITH OPERATING ELEMENT, PRESSURE PUMP, AND VACUUM PUMP FOR MIXING POLYMETHYLMETHACRYLATE BONE CEMENT ABSTRACT The invention relates to a vacuum mixing device for mixing polymethylmethacrylate bone cement from a monomer liquid and a cement powder (9), the vacuum mixing device comprising at least one cartridge (6) compri sing an evacuable interior for mixing of the bone cement (96), a mixing device (10) for mixing the content in the interior of the at least one cartridge (6), which is arranged movably in the interior, a receptacle (2) for receiving a separate container (54) containing the monomer liquid or comprising an integrated container containing the monomer liquid, an opening device (5), which is arranged in the region of the receptacle (2) in a manner movable relative to the receptacle (2) so that, by moving the opening device (5), a separate container (54) arranged in the receptacle (2) is openable by means of the opening device (5), or the opening device (5) is arranged in the region of the integrated container in a manner movable relative to the integrated container so that, by moving the opening device (5), the integrated container is openable by means of the opening device (5), a vacuum pump (3), in which a movable vacuum plunger (30) for generating a negative pressure is arranged and delimits a vacuum pump chamber (94) of the vacuum pump (3), a pressure pump (3), in which a movable pump plunger (31) for conveying a liquid is arranged and delimits a pressure pump chamber (36) of the pressure pump (3), a connection line (26), which connects the interior of the at least one cartridge (6) to the vacuum pump chamber (94) of the vacuum pump (3), and a fluid connection (70). which connects the interior of the at least one cartridge (6) to the pressure pump chamber (36) of the pressure pump (3), wherein the vacuum mixing system comprises an operating element (4) that is operatable from outside, wherein, by means of the operating element (4), the vacuum plunger (30) in the vacuum pump (3) is movable manually, the pump plunger (31) in the pressure pump (3) is movable manually, the opening device (5) is movable manually relative to the receptacle (2) or relative to the integrated container, and the mixing device (10) is movable manually in the interior of the cartridge (6).1/9 44 7.4 262 19 N 41 201 2626 89 181$1 Figure 1.