Bone cement mixing and delivery system

B - Operations – Transporting – 01 – F

Patent

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Details

B01F 15/02 (2006.01) A61M 5/00 (2006.01)

Patent

CA 2525096

A bone cement mixing and delivery system is provided. The system includes a mixing cartridge (100) for receiving liquid and powder components of bone cement, a mixing device (152) for mixing the components, and a delivery gun (500) for discharging the bone cement from the mixing cartridge. The mixing cartridge comprises a cylinder having proximal and distal ends with a cylinder wall extending between the ends. A piston (144) is locked at the distal end by a locking member that includes a pair of locking tabs (188) protruding into slots in the cylinder wall. With the piston in the locked position, the mixing device, e.g., a mixing shaft and blade, mixes the components. After mixing, the cartridge is placed in the delivery gun and release buttons on the locking member are engaged by a release mechanism on the delivery gun to release the piston from the locked position.

L'invention concerne un système de mélangeage et d'administration de ciment pour os. Le système comprend une cartouche de mélangeage destinée à recevoir les composants liquides et pulvérulents du ciment pour os, un dispositif de mélangeage pour mélanger les composants, et un pistolet d'administration pour décharger le ciment pour os à partir de la cartouche de mélangeage. La cartouche de mélangeage comprend un cylindre comportant une extrémité proximale et une extrémité distale avec une paroi de cylindre qui s'étend entre les extrémités. Un piston est verrouillé à l'extrémité distale au moyen d'un élément de verrouillage qui comprend une paire de languettes de verrouillage qui font saillie dans les fentes à l'intérieur de la paroi de cylindre. Lorsque le piston est en position verrouillée, le dispositif de mélangeage, par exemple, un arbre et une pale de mélangeage, mélange les composants. Après mélangeage, la cartouche est disposée dans le pistolet, et les boutons de libération de l'élément de verrouillage sont mis en prise par un mécanisme de libération sur le pistolet d'administration de manière à libérer le pistolet de la position verrouillée.

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