Device for mixing and/or injecting cements

Details Device for mixing and/or injecting cements Device for mixing and/or injecting cements

A - Human Necessities

61

F

A61F 2/46 (2006.01) B01F 15/02 (2006.01)

Patent

CA 2482865

The present invention relates to a device for storing and/or mixing and/or injecting cements, especially bone cements. The device includes a tube having a longitudinal axis, a front end with an outlet opening, a rear end; and an internal cylindrical cavity having a first end and a second end; a locking mechanism detachably connected to the front end of the tube so that the outlet opening can be sealed; and a lid detachably connected to the rear end of the tube; the lid having a borehole extending therethrough. The device also includes: a mixer having a mixing shaft sized and configured to extend through the borehole formed in the lid and a mixing tool at one end thereof, the mixer being axially and rotationally moveable inside of the cavity; driving means connected to the mixer shaft so that the mixer can be axially and rotationally moved with respect to the tube; and first restraining means for limiting the axial movement of the mixer with respect to the tube so that the a minimum distance A remains between the front face of the mixing tool and the front wall of the cavity; wherein the cylindrical cavity has a diameter D and the mixing tool has a maximum dimension X such that X is less than D.

L'invention concerne un dispositif de stockage et/ou de mélange et/ou d'injection de ciments, en particulier de ciments d'os, composé A) d'un tube (2) présentant un axe longitudinal (5) et une extrémité avant (3) pourvue d'un orifice de sortie (6), B) d'un bouchon (12) pouvant être relié de façon amovible audit dispositif (1) sur l'extrémité avant (3), C) d'un couvercle (10) présentant un alésage coaxial (11), pouvant être relié de façon amovible sur l'extrémité arrière (4) du tube (2), D) d'un piston (8) présentant un alésage traversant coaxial (9), pouvant coulisser dans l'espace creux (7) parallèlement à l'axe longitudinal (5), E) d'un mélangeur (14) pouvant être déplacé de façon axiale et rotative dans l'espace creux (7), comportant un outil de mélange (15) et un arbre de mélangeur (16) pouvant être inséré au travers de l'alésage (11) et de l'alésage traversant (9), (F) d'éléments d'entraînement (17) destinés à déplacer le mélangeur de façon axiale et rotative, et pouvant être reliés à l'arbre de mélangeur (16) en dehors du tube (2), et (G) d'éléments d'arrêt (18, 39) limitant le mouvement de coulissage axial de l'outil de mélange (15), au moins en direction de l'extrémité avant (3) du tube (2).

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