Device and method for providing bone cement paste

A device for providing a bone cement paste from two starting components, comprising

• a hollow cylindrical cartridge having an interior space, wherein, in a
• proximal part of the interior space, a bone cement powder is stored as the first starting component, and, in a distal part of the interior space, at least one bag is stored containing a monomer liquid as the second starting component,
• wherein the interior space is connectible at the proximal part of the interior space to a negative pressure source via a vacuum connector,
• wherein a dispensing plunger which is axially movable in the interior space is arranged between the bone cement powder and the at least one bag, and a feed plunger which is axially movable in the interior space is arranged on a side axially opposite the discharge piston, of the at least one bag such that, when the dispensing plunger and the feed plunger are pushed together, the at least one bag, is opened in a fluid-conducting manner and the monomer liquid can flow into the distal part of the interior space,
• wherein the proximal part and the distal part of the interior space are fluidly connected to one another via a conduit,
• wherein the conduit extends from the dispensing plunger into the distal part of the interior space with an axial conduit length corresponding to at least a quarter of a bag length of the bag, so that, when pushed together, the dispensing plunger and the feed plunger are spaced apart by the conduit by a plunger spacing corresponding to at least a quarter of the bag length;
• wherein the conduit is formed at least partially as a hollow cylinder with at least one cylinder passage extending axially in a hollow cylinder wall;
• and
• wherein the hollow cylinder has a hollow cylinder inner diameter which allows at least partial accommodation of the at least one bag.