Low profile spinal tethering devices

A - Human Necessities – 61 – B

Patent

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A61B 17/70 (2006.01) A61B 17/56 (2006.01)

Patent

CA 2602499

Methods and devices for treating spinal deformities are provided. In one exemplary embodiment, a low-profile spinal anchoring device is provided for receiving a spinal fixation element, such as a tether, therethrough. The device generally includes a staple body that is adapted to seat a spinal fixation element, a fastening element for fixing the staple body to bone, and a locking assembly for coupling a spinal fixation element to the staple body. In one embodiment, the locking assembly includes a washer that is adapted to couple to the staple body such that the spinal fixation is disposed therebetween, and a locking nut that is adapted to engage the staple body to mate the washer to the staple body.

L~invention concerne des méthodes et appareils pour traiter des difformités vertébrales. Dans un exemple de mode de réalisation, un appareil d'ancrage vertébral bas profil permet de recevoir, y passant à travers, un élément de fixation vertébral, tel qu'un filin. L'appareil comprend généralement un corps de crampon qui est adapté pour déposer un élément de fixation vertébral, un élément d'attache pour fixer le corps de crampon à l~os et un ensemble de verrouillage pour réunir un élément de fixation vertébral au corps de crampon. Dans un mode de réalisation, l~ensemble de verrouillage comprend une rondelle qui est adaptée pour s~unir au corps de crampon de façon à ce que la fixation vertébrale soit disposée entre les deux, et un contre-écrou qui est adapté pour s'engager avec le corps de crampon pour unir la rondelle au corps de crampon.

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