Device for producing a hardenable mass

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/46 (2006.01) B01F 13/00 (2006.01) B01F 15/02 (2006.01)

Patent

CA 2569702

The present invention relates to a device for producing a hardenable mass, preferably bone substitute and/or bone reinforcing material or bone cement or similar material. A mixing container (3) has a mixing space (4) in which at least one powder and at least one liquid component (5, 6) are mixed to provide the hardenable mass (2). A piston means (7) is provided in the mixing space (4) of the mixing container (3). At least one means (8) which is rotatable relative to the mixing container (3) cooperates with the piston means (7) for, in a retaining position (P1), retaining said piston means (7) relative to the mixing container (3) and, by rotation to a release position (P2), releasing the piston means (7) such that said piston means can move in a direction (U) towards at least one opening (49) through which said mass (2) can pass out of the mixing space (4). The rotatable means (8) is provided such that it in its release position (P2) can follow the piston means (7) in the mixing space (4) in the direction (U) towards said opening (49).

La présente invention se rapporte à un dispositif permettant de produire une masse durcissable, de préférence un substitut osseux et/ou un matériau de renforcement osseux, un ciment osseux ou un matériau analogue. Un récipient de mélange (3) possède un espace de mélange (4) dans lequel au moins une poudre et au moins un élément liquide (5, 6) sont mélangés afin de former ladite masse durcissable (2). Un moyen piston (7) est situé dans l'espace de mélange (4) du récipient de mélange (3). Au moins un moyen (8) rotatif par rapport au récipient de mélange (3) coopère avec le moyen piston (7) afin, en position de retenue (P1), de retenir ledit moyen piston (7) par rapport au récipient de mélange (3) et, par rotation vers une position de libération (P2), de libérer le moyen piston (7) de façon que ce dernier puisse se déplacer dans une direction (U) vers au moins une ouverture (49) à travers laquelle ladite masse (2) peut sortir de l'espace de mélange (4). Le moyen rotatif (8) est adapté de manière qu'il puisse, dans sa position de libération (P2), suivre le moyen piston (7) dans l'espace de mélange (4) dans la direction (U) vers ladite ouverture (49).

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