Spinal stabilization system with flexible guides

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/70 (2006.01) A61F 2/44 (2006.01)

Patent

CA 2667309

In one embodiment, a spinal stabilization apparatus 10 includes a vertebral anchor 12 having a head portion 28 and a bone attachment portion 30. An elongate, flexible guide 18 is removably coupled to the head portion 28 of the vertebral anchor 12 and has a channel 40 extending longitudinally thereof and communicating with a slot 32 in the head portion 28 of the anchor 12. An elongate cord 26 may be received within the channel 40 to facilitate inserting and securing a spacer 24 between pairs of anchors 12 installed into adjacent vertebrae of a person's spine.

Selon un mode de réalisation de l'invention, un dispositif de stabilisation vertébral (10) comprend un élément d'ancrage vertébral (12) ayant une partie tête (28) et une partie (30) de fixation à l'os. Un élément de guidage souple allongé (18) est relié de manière détachable à la partie tête (28) de l'élément d'ancrage vertébral (12) et présente un conduit (40) s'étendant longitudinalement et communiquant avec une encoche (32) dans la partie tête (28) de l'élément d'ancrage (12). Un cordon allongé (26) peut être logé dans le conduit (40) pour faciliter l'insertion et la fixation d'un écarteur (24) entre des paires d'éléments d'ancrage (12) placés dans des vertèbres adjacentes de la colonne vertébrale d'une personne.

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