Interbody spinal stabilization cage and spinal stabilization method
AssigneeSpinevision
InventorsCiaran Bolger, John Bolger
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Abstract
The present invention relates to an interbody spinal stabilization method and an interbody spinal stabilization cage. The cage has a parallelepipedic shape and comprises a central hollow space intended to be filled with bone fragments. The cage also comprises anchoring device(s) having an overall S shape and opening onto lateral faces connecting with adjacent vertebrae, actuated by at least one actuation device opening into a front face. The anchoring device(s) each have at least one main cutting edge.
Claims23
Interbody spinal stabilization cage having a parallelepipedic shape and comprising a central hollow space intended to be filled with bone fragments, said cage comprising anchoring means having an overall S shape and opening onto lateral faces connecting with adjacent vertebrae and being actuated by at least one actuation means opening into a front face, said anchoring means each comprising at least one main cutting edge.
Spinal stabilization method using an interbody spinal stabilization cage positioned between two vertebrae and having a parallelepipedic shape and comprising a central hollow space intended to be filled with bone fragments, anchoring means having an overall S shape and opening onto lateral faces connecting with adjacent vertebrae, said S-shaped anchoring means being actuated by at least one actuation means opening into a front face and being used to actuate said S-shaped anchoring means in order to enable the S-shaped anchoring means to change from a retracted position wherein the S-shaped anchoring means are positioned inside said cage to a projecting position wherein ends of the S-shaped anchoring means come out of said cage, said anchoring means each comprising at least one main and cutting edge, said method comprising inserting said cage between two spinal vertebrae with the S-shaped anchoring means in the retracted position, and actuating the actuation means so that the ends of the S-shaped anchoring means come out of the cage and penetrate the vertebrae.
A method for stabilizing a spine during a bone fusion procedure comprising:
- providing an interbody stabilization cage having a parallelepipedic shape and comprising a central space for receiving bone fragments, anchoring means having an overall S shape and at least one main cutting edge, said anchoring means opening onto lateral faces connecting with adjacent vertebrae, and actuation means for operating said anchoring means;
- implanting said cage to keep an intervertebral space between said adjacent vertebrae constant in order to prevent distraction of said vertebrae;
- and
- said implanting step comprising penetrating said anchoring means into the bone substance of at least one of said vertebrae.
Dependencies are inferred from the claim text.