Patent ID: 11241266

Abstract:
One aspect relates to a device for the production of a bone cement dough from a monomer liquid and a cement powder comprising a cartridge with an internal space; a cartridge head with a dispensing opening; a conveying plunger that is supported in the internal space of the cartridge such that it is pushable in the direction of the dispensing opening; a dispensing plunger between the dispensing opening and the conveying plunger that is supported in the internal space of the cartridge such that it is pushable in the direction of the dispensing opening; a first hollow space, in which the cement powder is arranged; a second hollow space that is bordered by the dispensing plunger and the conveying plunger; a rear-side part of the internal space of the cartridge; and a conducting means that connects the second hollow space to the rear-side part of the internal space of the cartridge such as to bypass the conveying plunger and be permeable to the monomer liquid. The conducting means can be closed by the conveying plunger with respect to the second hollow space by shifting the conveying plunger in the direction of the dispensing plunger, and a feedthrough in the dispensing plunger that connects the first hollow space and the second hollow space such as to be permeable to the monomer liquid.