| 摘要 |
The invention relates to a device for mixing and dispensing a pasty mass, in particular a bone cement, comprising a cartridge that is open or can be opened on two ends and has a mixing element and a feed plunger arranged in it, whereby the feed plunger, in a starting position, is arranged in the region of a first cartridge end, the mixing element is arranged on a mixing rod, the mixing rod extends through the feed plunger into the inside of the cartridge, the mixing rod and the feed plunger and the cartridge together form a tight connection that seals the cartridge inside of the device with respect to the exterior, whereby the feed plunger is arranged on the mixing rod and such that it can move in the cartridge in axial direction and whereby at least one clamping jaw is arranged on the feed plunger in appropriate manner such that the clamping jaw can be pressed onto the mixing rod by means of a locking element such that the mixing rod can no longer be shifted with respect to the feed plunger. The invention also relates to a bone cement system comprising a device of this type and a method for producing a cement mixture, in particular of a bone cement, having a device of this type or a bone cement system of this type. |
