A - Human Necessities – 61 – J
Patent
A - Human Necessities
61
J
A61J 3/00 (2006.01) A61F 2/46 (2006.01) B01F 11/00 (2006.01) B01F 13/00 (2006.01) A61F 2/00 (2006.01) B01F 3/12 (2006.01) B01F 13/06 (2006.01) B01F 15/02 (2006.01)
Patent
CA 2054196
The present invention relates to an arrangement for the manufacture of bone cement by mixing together its constituent components comprising a mixing cylinder (1) in the form of a tube with a bottom (2) and a lid (3) and inside the mixing cylinder an axially movable agitator (4). The agitator consists of a piston-like agitatordisc (4a), which is perforated by channels (4a1), through which the components of the bone cement are caused to flow during the mixing procedure and an agitator rod (4b) resembling a piston rod operatively connected to the agitator disc (4a) andsupported in the lid (3) in such a way that it is free to slide. The invention is characterized in that the agitator rod (4b) has an axial channel (4b1), which is closed off atthe agitator disc (4a) in such a way that it is capable of being opened. The bottom (2) is so arranged, under the effect of an axial force, as to be displaced like a piston axially in the direction of the lid (3), in conjunction with which the bone cement flows out through the channel (4b1) after it has been opened.
L'invention concerne un dispositif pour préparer du ciment pour os en mélangeant les constituants, comprenant un cylindre mélangeur (1) sous forme d'un tube avec un fond (2) et un couvercle (3), un agitateur (4) axialement mobile étant disposé à l'intérieur dudit tube. L'agitateur comprend un disque d'agitateur du genre à piston (4a) perforé par des canaux (4a1) par lesquels le ciment pour os s'écoule au cours du procédé de mélange, ainsi qu'une tige d'agitateur (4b), semblable à une tige de piston, reliée au disque d'agitateur (4a) et montée dans le couvercle (3) de manière coulissante. Ladite invention est caractérisée en ce que la tige d'agitateur (4b) est pourvue d'un canal (4b1) fermé au niveau du disque d'agitateur (4a) et pouvant être ouvert. Le fond (2) est disposé de manière à se déplacer axialement vers le couvercle (3), à la manière d'un piston, sous l'effet d'une force axiale; conjointement, le ciment pour os s'écoule à travers ledit canal (4b1) lorsque celui-ci a été ouvert.
Jonsson Soren
Nilsson Thomas
Smeds Staffan
Thorling Jan
Cemvac System Ab
Norton Rose Or S.e.n.c.r.l.,s.r.l./llp
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