Implant for insertion between spinal column vertebrae
First Claim
1. An implant for insertion between the vertebrae of a spinal column, wherein:
- surfaces of a substantially rectangular or trapezoidal-section implant adapted to face adjacent vertebrae are porous and/or are provided with a profiled structure, a breadth of the implant is adapted to cover at most a rearward half of the vertebra facing the spinous process, a length of the implant is adapted to essentially overlap the rearward region of the vertebra, a first boundary face of the implant adapted to face the interior of the vertebra and extend towards the adjacent vertebrae is curved convexly over at least a portion of a wall of said first boundary face, a second boundary face of the implant adapted to face the spinous process is curved concavely, said second boundary face being free of break-throughs, the first boundary face comprises at least one depression which extends into, but not through, said wall of said first boundary face, and two borings extending through the implant, wherein each boring runs from respective outer faces of said implant into said depression in a central portion of the implant.
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Accused Products
Abstract
An implant for insertion between vertebrae of the verterbral column having a substantially rectangular or trapezoidal cross-section and covering faces adapted to face the adjacent vertebrae which are porous and/or designed with a profile. The implant has such a width that it substantially covers at the maximum the rear half of the vertebrae facing the spinous process, preferably at the maximum the rear third of the vertebrae facing the spinous process, and such a length that it substantially covers the rear region of the vertebrae. The limiting surface of the implant facing the inside of the vertebrae and extending in the direction of the adjacent vertebrae is convex. This enables an adequate and reliable supporting function to be achieved with only one implant and can easily be inserted sideways from behind.
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Citations
22 Claims
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1. An implant for insertion between the vertebrae of a spinal column, wherein:
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surfaces of a substantially rectangular or trapezoidal-section implant adapted to face adjacent vertebrae are porous and/or are provided with a profiled structure, a breadth of the implant is adapted to cover at most a rearward half of the vertebra facing the spinous process, a length of the implant is adapted to essentially overlap the rearward region of the vertebra, a first boundary face of the implant adapted to face the interior of the vertebra and extend towards the adjacent vertebrae is curved convexly over at least a portion of a wall of said first boundary face, a second boundary face of the implant adapted to face the spinous process is curved concavely, said second boundary face being free of break-throughs, the first boundary face comprises at least one depression which extends into, but not through, said wall of said first boundary face, and two borings extending through the implant, wherein each boring runs from respective outer faces of said implant into said depression in a central portion of the implant. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20, 21, 22)
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14. An implant in accordance with claim 14, wherein the thickness of the implant in the central portion thereof is less than that of outer sections adjoined thereto due to the depression.
Specification