Articulated bone screw

Details Articulated bone screw Articulated bone screw

A - Human Necessities

61

B

A61B 17/86 (2006.01)

Patent

CA 2560898

The claimed bone screw (1) has a head (2), a shaft (3) and a longitudinal axis (9). The shaft (3) comprises a proximal section (5) adjacent to the head (2) and a distal section (7) secured to the proximal section (5) by a cardan or cardan-like joint (6), the distal section being suitable for introduction into the bone and being provided with an outer thread (4). The bone screw (1) can be bent in all directions relative to its longitudinal axis, while retaining its axial rigidity and fully transmitting a couple without the need for additional means.

Cette vis à os (1) comprend une tête (2), une tige (3) et un axe longitudinal (9). La tige (3) comprend une section proximale (5) adjacente à la tête (2) et une section distale (7) assujettie à la section proximale (5) par un joint de cardan ou similaire (6), destinée à être introduite dans l'os et pourvue d'un filetage extérieur (4). Cette vis à os (1) peut être pliée dans toutes les directions par rapport à son axe longitudinal, tout en retenant sa rigidité axiale et en transmettant pleinement un couple sans l'aide d'éléments additionnels.

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