Artificial spinal fusion implant
First Claim
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1. An implant for fusion of two adjacent vertebrae in the spine said implant comprising a generally rectangular member, said member having a plurality of openings therein for promoting bone ingrowth with the implant and fusion of said vertebrae.
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Abstract
A spinal implant is disclosed which when placed within the spinal disc space stabilizes that spinal segment and materially participates in, and is incorporated in, the ensuing fusion.
296 Citations
24 Claims
- 1. An implant for fusion of two adjacent vertebrae in the spine said implant comprising a generally rectangular member, said member having a plurality of openings therein for promoting bone ingrowth with the implant and fusion of said vertebrae.
- 10. A spinal implant comprising a hollow rectangular member, said rectangular member having a removable cap for covering said opening.
- 17. A driving member for driving a spinal implant comprising a first hollow tubular member , said hollow member having an irregular end for confirming to the external shape of a front surface of a spinal implant, and a second rod member fitted within said hollow tubular member said rod member having a threaded portion at one end and an enlarged knob portion at the other end.
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19. A spinal implant comprising a generally rectangular ember having a dimension of less than the width of a disc space, whereby a plurality of said implants of different widths have a width of the size of a disc space.
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20. A plurality of spinal implants, the combined width of said spinal implants approximating the width of the disc space.
- 21. A method for replacing a disc in the spine comprising removing the disc and inserting into the resulting disc space a plurality of implants having a combined width approximating the width of the disc space.
Specification