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CAGE VERTÉBRALE À EXPANSION SÉLECTIVE AVEC UNE MEILLEURE INFUSION DE GREFFE OSSEUSE
专利权人:
Howmedica Osteonics Corp.
发明人:
申请号:
EP17197747.3
公开号:
EP3338741A1
申请日:
2014.03.13
申请国别(地区):
EP
年份:
2018
代理人:
摘要:
A selectively expanding spine cage has a minimized cross section in its unexpanded state that is smaller than the diameter of the neuroforamen through which it passes in the distracted spine. The cage conformably engages between the endplates of the adjacent vertebrae to effectively distract the anterior disc space, stabilize the motion segments and eliminate pathologic spine motion. Expanding selectively (anteriorly, along the vertical axis of the spine) rather than uniformly, the cage height increases and holds the vertebrae with fixation forces greater than adjacent bone and soft tissue failure forces in natural lordosis. Stability is thus achieved immediately, enabling patient function by eliminating painful motion. The cage shape intends to rest proximate to the anterior column cortices securing the desired spread and fixation, allowing for bone graft in, around, and through the implant for arthrodesis whereas for arthroplasty it fixes to endpoints but cushions the spine naturally.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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