| 摘要 |
Spinal and other implants may be bone or synthetic material shaped as rings, C-shaped or rectangular and so on and also may have serrated wedge shaped top and bottom surfaces to match the disc space lordosis of adjacent ertebra and so on. The implants have one or more recesses aligned in an insertion direction at either or both outer peripheral sides of the implant. In a ring implant, e.g., formed from a transverse slice of the diaphysis of a long bone or otherwise, the recesses are aligned overlying the opposing sides of the ring parallel to the insertion direction, which sides are stronger than the more central region overlying and aligned with a central chamber in the implant. The alignment ith the opposing sides minimizes damage to the implant at the weaker more central region in response to implant insertion forces. One or two spaced recesses on opposite sides of an implant have surface(s) transverse to the insertion direction receive the tips of implant insertion gripping jaws for receiving an insertion load imparted by the tips. The recesses may have gripping surfaces extending in the insertion direction, which may be anterior/posterior or at an angle to the anterior/posterior direction for insertion laterally or anterior/laterally to the anterior/posterior direction. Such an implant may be non-bone and may be used to support or fuse bone not limited to the spine. Various embodiments of insertion tools and implants are disclosed.
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