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ARTIFICIAL DISC REPLACEMENTS WITH NATURAL KINEMATICS
专利权人:
SpineCore; Inc.
发明人:
Bret A. Ferree,David Tompkins
申请号:
US15402610
公开号:
US20170119545A1
申请日:
2017.01.10
申请国别(地区):
US
年份:
2017
代理人:
摘要:
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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http://www.ckcest.cn/home/
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