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Intervertebral prosthesis

  • US 20050256579A1
  • Filed: 07/25/2005
  • Published: 11/17/2005
  • Est. Priority Date: 03/12/2002
  • Status: Active Grant
First Claim
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1. An intervertebral prosthesis, comprising a first cover plate configured to be connected to a first vertebral body, a second cover plate configured to be connected to a second vertebral body, and a prosthesis core which forms an articulation with the second cover plate and is held by a seat of the first cover plate, which seat is designed as a guide device into which the core can be moved from a ventral side relative to the first cover plate, wherein the first cover plate has, on a ventral edge, a slide guide with respect to which a limit stop is displaceable between a locking position and a nonlocking position and has a height such that the limit stop does not interfere with relative motion between the prosthesis core and the second cover plate, and wherein the slide guide for the limit-stop plate is formed by a slide-guide surface extending transverse to an anterior-posterior direction on the ventral edge of the first cover plate and by a pivot pin projecting from the slide-guide surface and on which the limit-stop plate is pivotably mounted, and wherein the limit-stop plate has a tongue which, in a locking pivot position of the limit-stop plate, protrudes above the bottom surface of the first cover plate, and, in the nonlocking position, is lowered below the bottom surface of the first cover plate.

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