Interbody fusion devices with self-affixing mechanisms

摘要

Interbody fusion devices including deployable fixation members. The implant may include a spacer, optionally, an end member coupled to the spacer, and one or more fixation members configured to extend into adjacent vertebrae. The fixation members may include screws, nails, shims, tangs, spikes, staples, pins, blades, fins, or the like, and combinations thereof.

主权项

1. An implant for implantation in a treated area of an intervertebral space between vertebral bodies of a spine, the implant comprising:
a spacer having a superior surface and an inferior surface, the superior surface and the inferior surface each have a contact area configured to engage adjacent vertebrae, and the spacer defines at least one opening extending from the superior surface to the inferior surface; at least one shaft coupled to the spacer and extending through the opening; one or more fins operatively attached to the shaft; and a wall extending through the spacer, wherein the wall divides the at least one opening in the spacer, wherein rotation of the shaft causes deployment from a retracted position to a deployed position of the one or more fins, the one or more fins configured to engage an adjacent vertebral body, wherein the one or more fins rest on the wall dividing the at least one opening when in the retracted position but not in the deployed position.