Artificial disc replacements with natural kinematics

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United States of America Patent

PATENT NO 9572679
SERIAL NO

14881879

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Abstract

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This invention improves upon prior art total disc replacements (TDRs) by more closely replicating the kinematics of a natural disc. The preferred embodiments feature two or more fixed centers of rotation (CORs) and an optional variable COR (VCOR) as the artificial disk replacement (ADR) translates from a fixed posterior COR that lies posterior to the COR of the TDR to facilitate normal disc motion. The use of two or more CORs allows more flexion and more extension than permitted by the facet joints and the artificial facet (AF). AF joint-like components may also be incorporated into the design to restrict excessive translation, rotation, and/or lateral bending.

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Patent Owner(s)

Patent OwnerAddress
HOWMEDICA OSTEONICS CORP325 CORPORATE DRIVE MAHWAH NJ 07430

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ferree, Bret A Cincinnati, US 197 18273
Tompkins, David Newport, US 44 2499

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