Roger Berger,Rado Marjanovic,Joern Richter,David Koch
申请号：
US12984511
公开号：
US20120172988A1
申请日:
2011.01.04
申请国别(地区):
US
年份:
2012
代理人:
摘要：
An intervertebral implant comprises a number of components including upper and lower endplates and one or more inserts configured to be disposed between the upper and lower endplates. Complimentary curved articulation surfaces are defined on the insert-facing surfaces of the upper and lower endplates and on the corresponding upper and lower surfaces of each of the inserts. The components of the implant articulate with respect to each other along shared articulation surfaces. At least two pairs of shared articulation surfaces are defined, each pair having a different length radius. The components of the implant can be configured with retainers, such that the implant is retained in an assembled configuration when disposed within an intervertebral space.
