发明名称 |
SEMI-CONSTRAINED SCREW AND SPINAL PLATE ASSEMBLY |
摘要 |
<p>A semi-constrained screw and a cervical plate assembly that engages to a cervical area of the human vertebrae system are disclosed. The semi-constrained screw and cervical plate assembly includes a cervical plate and one or more semi-constrained bone screws. Each semi-constrained bone screw includes an elongated shank, which is mechanically and releasably coupled to a head portion. The head portion includes one or more threaded segments which define one or more slits therebetween. As the semi-constrained bone screw is driven through the screw opening in the cervical plate and into the bone, the head portion allows poly-axial movement of the shank relative to the head portion.</p> |
申请公布号 |
EP2337514(B1) |
申请公布日期 |
2015.02.25 |
申请号 |
EP20090821195 |
申请日期 |
2009.10.14 |
申请人 |
K2M, INC. |
发明人 |
WALLENSTEIN, TODD;MCCLINTOCK, LARRY;JONES, SCOTT |
分类号 |
A61B17/80;A61B17/70;A61B17/86 |
主分类号 |
A61B17/80 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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