US 12,408,964 B2
Device and method for providing a bone cement paste
Sebastian Vogt, Wehrheim (DE); and Thomas Kluge, Wehrheim (DE)
Assigned to Heraeus Medical GmbH, Wehrheim (DE)
Filed by Heraeus Medical GmbH, Wehrheim (DE)
Filed on Jul. 13, 2023, as Appl. No. 18/351,937.
Claims priority of application No. 22185605 (EP), filed on Jul. 19, 2022.
Prior Publication US 2024/0024006 A1, Jan. 25, 2024
Int. Cl. A61B 17/88 (2006.01)
CPC A61B 17/8833 (2013.01) [A61B 17/8822 (2013.01); A61B 2017/8838 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A device for providing a bone cement paste from two starting components, comprising
a mixing unit comprising a hollow cylindrical cartridge with an interior space, wherein a discharge piston axially movable in the interior space is arranged in the interior space, which discharge piston divides the interior space into a proximal part of the interior space and a distal part of the interior space, wherein the proximal part and the distal part of the interior space are connected to one another in a fluid-conducting manner via a conduit means,
wherein a bone cement powder is stored in the proximal part of the interior space as a first starting component and wherein a conveying piston axially movable in the interior space is arranged in the distal part of the interior space,
and a reservoir for a monomer liquid serving as a second starting component, which is connected or connectable in a fluid-conducting manner via an inlet channel to the distal part of the interior space for introducing the monomer liquid from the reservoir into the mixing unit,
wherein
the reservoir and the mixing unit are connected or connectable in a fluid-conducting manner via an outlet channel, via which a gas is discharged from the interior space into the reservoir.