System of spinal arthodesis implants
AssigneeLDR Medical
InventorsAlexis Mercier, Samuel Lequette
Life of this patent
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Abstract
The present invention relates to a spinal arthrodesis system including at least two types of implants from among the three following types: an intersomatic implant (IS), including at least one passage (40) mating at least one anchoring device (1); an interspinous implant (IE), including at least two wings able to run along a portion of the vertebral spines (EI, ES); a facet implant (IF) including a bone attachment.
Claims5
1-35. (canceled)
A system for arthrodesis of a first vertebra and a second vertebra adjacent to the first vertebra comprising:
- an intersomatic cage and a cage anchor;
- an interspinous implant comprising a body and a plurality of wings movable with respect to the body;
- and
- a facet screw having a longitudinal axis between a free end and a head, the screw comprising an internal conduit along at least a portion of the longitudinal axis and a plurality of windows extending from an exterior surface of the screw into the conduit.
A method for arthrodesis of a first vertebra and a second vertebra adjacent to the first vertebra comprising the steps of:
- placing an a cage in an intervertebral space between the first vertebra and the second vertebra;
- inserting a curved anchor through a first passage in the cage accessible from outside the intervertebral space;
- fixing the cage to the first vertebra by advancing the anchor in the first passage until a tip of the anchor emerges from the first passage in the cage and enters into the first vertebra;
- inserting an interspinous implant body between a first spinous process of the first vertebra and a second spinous process of the second vertebra;
- inserting an interspinous implant insert into a second passage in the interspinous implant body;
- fixing the first spinous process and the second spinous process by
- advancing the interspinous implant insert in the second passage until a first stationary wing attached to the implant body is against a first side of the first spinous process, a second stationary wing attached to the implant body is against a first side of the second spinous process, a first foldable wing attached to the interspinous implant insert is against a second side of the first spinous process, and a second foldable wing attached to the interspinous implant insert is against a second side of the second spinous process,
- compressing the first stationary wing and the first foldable wing against the first spinous process, and
- compressing the second stationary wing and the second foldable wing against the second spinous process;
- and
- fixing a first articular facet of the first vertebra and a second articular facet of the second vertebra with a facet screw.
Dependencies are inferred from the claim text.