Spinal anchoring screw

Details Spinal anchoring screw Spinal anchoring screw

A - Human Necessities

61

B

A61B 17/70 (2006.01) A61B 17/56 (2006.01) A61F 2/44 (2006.01)

Patent

CA 2674147

A spine stabilization system having a dynamic screw comprises at least one bone anchor assembly comprising a receiver member and a bone engaging member pivotably connected to the receiver member. A bearing is provided in the receiver member that engages a portion of the bone engaging member. An elongated connecting member is connected to the receiver member. A retention member insert is provided within the receiver member between the elongated connecting member and the bearing. The retention member is configured to secure the bearing within the retention member.

L'invention concerne un système de stabilisation de la colonne vertébrale pourvu d'une vis dynamique, qui comprend au moins un ensemble d'ancrage osseux composé d'un élément de réception et d'un élément de contact osseux relié pivotant à l'élément de réception. Un support formé dans l'élément de réception vient en contact avec une partie de l'élément de contact osseux. Un élément de liaison oblong est relié à l'élément de réception. Un insert d'élément de retenue est placé dans l'élément de réception, entre l'élément de liaison oblong et le support. L'élément de retenue est conçu pour fixer le support dans l'élément de retenue.

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