07094257 is referenced by 186 patents and cites 49 patents.

An expandable intervertebral implant having an external member and an internal member. The implant includes a locking arrangement having a first interlocking teeth structure formed on the external member and a second interlocking teeth structure formed on the internal member. The interlocking teeth structures of the external and internal members have engagement surfaces arranged in a non-perpendicular orientation relative to the direction of implant expansion. The locking arrangement is configured such that walls of the internal member are pulled or flexed toward the walls of the external member when compressive forces are applied to the implant.

Title
Expandable intervertebral implant cage
Application Number
10/685767
Publication Number
7094257 (B2)
Application Date
October 14, 2003
Publication Date
August 22, 2006
Inventor
Ishmael Bentley
Eagan
MN, US
James R Mujwid
Crystal
MN, US
Agent
Wood Herron & Evans
Assignee
Zimmer Spine
TX, US
IPC
A61F 2/44
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