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Intervertebral disc prosthesis

  • US 4,349,921 A
  • Filed: 06/16/1980
  • Issued: 09/21/1982
  • Est. Priority Date: 06/13/1980
  • Status: Expired due to Term
First Claim
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1. An intervertebral disc prosthesis, comprising a body of substantially rigid, non-porous, biologically compatible material having a superior surface, an inferior surface, opposed lateral surfaces and opposed anterior and posterior ends, each of said superior surface and inferior surface being substantially flat in the lateral-lateral direction over the entirety of said surfaces and, in the anterior-posterior direction, corresponding generally with the shape of a vertebral surface adjacent a disc space, and means located at one of said opposed anterior and posterior ends for facilitating holding of the prosthesis during its insertion into said disc space.

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