Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 31, 2022
Patent Application Number
16560847
Date Filed
September 4, 2019
Patent Citations
Patent Primary Examiner
An intervertebral prosthesis for insertion between adjacent vertebrae includes an upper plate, a lower plate and a core. The core is retained between the upper and lower plates by a retention feature in the form of central projections on the plates and a corresponding opening in the core. The retention feature is designed to allow the plates to slide over the upper and lower surfaces of the core in the anterior/posterior direction and in the lateral direction and to allow the plates to rotate with respect to each other and the core. The retention feature is also designed to prevent contact between the first and second plates during sliding movement of the plates over the core.
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