Articular facet interference screw

Details Articular facet interference screw Articular facet interference screw

A - Human Necessities

61

B

A61B 17/86 (2006.01) A61B 17/70 (2006.01) A61B 17/68 (2006.01)

Patent

CA 2505850

The bone screw (1) is used for locking an articular facet between the superior and inferior articular processes of two vertebral bodies and is provided with a threaded shaft (2), a screw head (3) and a central axis (4). The screw head (3) is further provided with a number of grooves (5) on the periphery of the screw head (3) which run essentially parallel to said central axis (4).

L'invention concerne une vis pour os (1) destinée à bloquer une facette articulaire entre les apophyses articulaires supérieure et inférieure de deux corps vertébraux et pourvue d'un axe fileté (2), d'une tête de vis (3) et d'un axe central (4). La tête de vis (3) est en outre dotée sur sa périphérie d'un certain nombre de rainures (5) qui sont essentiellement parallèles audit axe central (4).

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