Polyaxial screw

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/70 (2006.01)

Patent

CA 2624861

A bone-anchoring device is provided. The bone-anchoring device may comprise a screw including a threaded shaft portion configured to engage bone tissue, and a head portion having a cup-shaped cavity. The device may further include a rod connector and a linking member, wherein the linking member includes a spherical head portion configured to engage the cup-shaped cavity of the head of the screw, a widened flange s configured to engage the linking member, and an elongate body extending from the widened flange portion and configured to extend through an opening in the rod connector.

Dispositif d~ancrage osseux, comprenant une vis incorporant une partie de tige filetée configurée pour venir en prise avec un tissu osseux, et une partie de tête dotée d~une cavité en cuvette. Le dispositif comprend en outre un raccord de barre et un élément de liaison. L~élément de liaison comprend une partie de tête sphérique configurée pour s~emboîter dans la cavité en cuvette de la partie de tête de la vis, une bride élargie configurée pour venir en prise avec l~élément de liaison, et un corps allongé se prolongeant depuis la bride élargie et configuré pour pénétrer dans une ouverture pratiquée dans le raccord de barre.

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