05593409 is referenced by 604 patents and cites 7 patents.

The present invention discloses a spinal fusion implant that is at least partially cylindrical, made of material appropriate for human implantation and having preferably, but not necessarily, one closed end and one end capable of being closed, such that an internal chamber can be filled and hold any natural or artificial osteoconductive, osteoinductive, osteogenic, or other fusion enhancing material. The partially cylindrical implant directly participates and is incorporated in the ensuing fusion. In the preferred embodiment, the implant of the present invention relies on surface roughenings of the outer surface to enhance its stability and resist dislodgement from within the disc space between two adjacent vertebrae. The implant of the present invention incorporates at its rear end, an engagement means to facilitate insertion or extraction of the implant. The implant may be filled with, coated with, and/or composed of, fusion promoting substances. Finally, the implant of the present invention does not require rotation for its insertion and can be seated by linear advancement.

Title
Interbody spinal fusion implants
Application Number
205935
Publication Number
5593409
Application Date
February 17, 1995
Publication Date
January 14, 1997
Inventor
Gary K Michelson
Venice
CA, US
Agent
Woodard Emhardt Naughton Moriarty & McNett
Assignee
Sofamor Danek Group
TN, US
IPC
A61F 2/44
A61B 17/56
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