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Fusion implant device and method of use

  • US 5,895,426 A
  • Filed: 09/06/1996
  • Issued: 04/20/1999
  • Est. Priority Date: 09/06/1996
  • Status: Expired due to Term
First Claim
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1. An intervertebral prosthesis comprising an implant member dimensioned for insertion within a receiving bed formed in opposed faces of adjacent vertebrae, said implant member defining a longitudinal axis and having a non-threaded outer surface and at least first and second longitudinal sections with respective first and second cross-sectional dimensions, said first cross-sectional dimension being greater than said second cross-sectional dimension to define a retaining surface of said implant member, said retaining surface being positioned, dimensioned and configured such that upon insertion of said implant member into the receiving bed between the vertebrae, said retaining surface facilitates securement therewithin by corresponding engagement with surfaces of the adjacent vertebrae.

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