US 7,320,689 B2
Multi-part cervical endoprosthesis with insertion instrument
Arnold Keller, Kayhude (Germany)
Assigned to Cervitech, Inc., Rockaway, N.J. (US)
Filed on Jul. 15, 2003, as Appl. No. 10/619,179.
Prior Publication US 2005/0015094 A1, Jan. 20, 2005
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/58 (2006.01); A61F 2/00 (2006.01); A61F 2/44 (2006.01)
U.S. Cl. 606—99  [623/17.16] 17 Claims
OG exemplary drawing
 
1. A multi-part intervertebral endoprosthesis system, comprising:
a multi-part intervertebral endoprosthesis, comprising,
a top closure plate,
a bottom closure plate, and
a sliding core between the top and bottom closure plates, each closure plate including a pair of receiving openings, and
an insertion instrument which comprises a handgrip and a gripping portion for engaging the top and bottom closure plates with corresponding retention projections which, in order to hold the intervertebral endoprosthesis on the insertion instrument, are configured to engage with the corresponding receiving openings,
the receiving openings being arranged in lateral side faces relative to an implanted position of the closure plates, and the receiving openings assigned to one of the closure plates each have an elongate shape extending in a direction toward the other closure plate.