06881228 is referenced by 184 patents and cites 60 patents.

An artificial disc implant includes an upper shell, a lower shell, and a spacer therebetween. The spacer preferably has properties similar to that of a natural spinal disc, while the upper and lower shells form a rigid interface between the implant and the adjacent vertebral bodies. The upper and lower shells can be configured to prevent expulsion of the spacer from the disc space. The implant upper and lower shells may further be configured into partially cylindrical shapes for ease of insertion through an insertion tube as presently known for interbody fusion devices. The devices may further be configured for insertion through a double-barreled insertion tube. Methods and instruments for inserting an artificial disc implant are also provided.

Title
Artificial disc implant
Application Number
10/85872
Publication Number
6881228 (B2)
Application Date
February 28, 2002
Publication Date
April 19, 2005
Inventor
William F McKay
Memphis
TN, US
Thomas A Zdeblick
Middleton
WI, US
Agent
Woodard Emhardt Moriarty McNett & Henry
Assignee
SDGI Holdings
DE, US
IPC
A61F 002/44
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