Spine stiffening device and associated method

Details Spine stiffening device and associated method Spine stiffening device and associated method

A - Human Necessities

61

B

A61B 17/70 (2006.01)

Patent

CA 2674357

In various embodiments, a spinal stabilization system (10) has a first and a second vertebral anchor (14) each adapted to be coupled to one of a first and a second vertebrae (16). The system (10) also includes a flexible connecting element (12) coupled to each of the first and second vertebral anchors (14) and extending between the vertebral anchors (14). The connecting element (12) has a central member (36) and a brace (40) positioned about the central member (36) and the central member (36) is stiffer than the brace (40) to provide the needed combination of support and stiffness to the construct while offering flexibility. These and other various embodiments of this invention offer an improvement over known systems by providing stabilization of the vertebral column while allowing for flexibility and axial dampening.

Dans divers modes de réalisation, un système de stabilisation spinal (10) a un premier et un second ancrage vertébral (14) chacun adapté pour être couplé à une parmi une première et une seconde vertèbre (16). Le système (10) comprend également un élément de connexion flexible (12) couplé à chacun des premier et second ancrages vertébraux (14) et s'étendant entre les ancrages vertébraux (14). L'élément de connexion (12) a un élément central (36) et une pièce de renforcement (40) positionnée au niveau de l'élément central (36) et l'élément central (36) plus raide que la pièce de renforcement (40) afin de fournir la combinaison nécessaire en termes de support et de raideur à la construction tout en présentant de la flexibilité. Ces modes de réalisation de l'invention et d'autres variés présentent une amélioration par rapport à des systèmes connus en fournissant une stabilisation à la colonne vertébrale tout en permettant une flexibilité et une capacité d'amortissement axial.

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