Distraction device used for osteogenesis

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/66 (2006.01) A61B 17/80 (2006.01) A61C 8/00 (2006.01)

Patent

CA 2480261

The invention relates to a device used for distraction osteogenesis, which comprises a lead-screw (1) actuated drive and two anchors (3, 4) that can be displaced relative each other by said drive, whereby one of said anchors is linked with a stationary bone segment and the other is linked with a movable bone segment. The invention is specifically characterized in that the drive is configured as a linear drive by which two elements (1, 2) can be translationally displaced relative each other without being rotated relative each other, whereby one of the aforementioned anchors is fixed on the first end (1a) of the one element and the other of the aforementioned anchors is fixed on the first end (2a) of the other element.

L'invention concerne un appareil d'ostéogenèse en distraction, cet appareil étant pourvu d'un mécanisme de commande, comprenant une broche filetée (1), et de deux éléments d'ancrage (3, 4) pouvant être déplacés l'un par rapport à l'autre par l'intermédiaire du mécanisme de commande. Un des éléments d'ancrage peut être relié à un segment d'os fixe et l'autre à un segment d'os mobile. Selon l'invention, le mécanisme de commande se présente sous la forme d'un mécanisme de commande linéaire au moyen duquel deux organes (1, 2) peuvent être déplacés l'un par rapport à l'autre par translation sans pivoter l'un par rapport à l'autre, l'un des éléments d'ancrage susmentionnés étant fixé à la première extrémité (1a) de l'un de ces organes et l'autre élément d'ancrage à la première extrémité (2a) de l'autre organe.

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