Expandable spinal fusion device and methods of promoting...

A - Human Necessities – 61 – F

Patent

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A61F 2/44 (2006.01) A61F 2/30 (2006.01) A61F 2/00 (2006.01) A61F 2/02 (2006.01) A61F 2/28 (2006.01) A61F 2/46 (2006.01)

Patent

CA 2500374

An intervertebral disc space implant (8) includes spaced-apart bone engagement portions (30) that define an intermediate chamber that holds bone growth inducing material into contact with adjacent vertebral bodies. The implant (8) is expandable to establish and maintain desired intervertebral spacing during fusion. The implant (8) includes a first member (30) and a second member (30) arranged to move relative to each other by action of an expansion member (10), the first member being engageable with the vertebral body below the disc space.

L'invention concerne un implant d'espace intervertébral comprenant des parties osseuses séparées qui définissent une chambre intermédiaire renfermant un matériau d'induction de croissance osseuse en contact avec des corps vertébraux adjacents. Un implant est extensible afin d'établir et de conserver un espace intervertébral désiré pendant la fusion. Ledit implant comprend un premier et un second éléments agencés afin de se déplacer l'un par rapport à l'autre par action d'un élément d'extension, ledit premier élément coopérant avec le corps vertébral situé en-dessous de l'espace intervertébral.

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