发明名称 |
Dual spring posterior dynamic stabilization device with elongation limiting elastomers |
摘要 |
A Posterior Dynamic Stabilization (PDS) device that regulates physiologic spinal elongation and compression. Regulation of elongation and compression are critical requirements of Posterior Dynamic Stabilization devices. Elongation and compression of the device allow the pedicles to travel naturally as the spine flexes and extends. This interpedicular travel preserves a more natural center of rotation unlike some conventional PDS devices that simply allow bending. The device incorporates two components: 1) a spring that allows elongation/compression, and 2) a polymer core component that serves to increase the stiffness of the device in shear, bending, and tension, and also prevents soft tissue ingrowth. |
申请公布号 |
US8641734(B2) |
申请公布日期 |
2014.02.04 |
申请号 |
US20090432141 |
申请日期 |
2009.04.29 |
申请人 |
MOUMENE MISSOUM;AFSHARI PAYMAN;FANGER JONATHAN;FLAHERTY KEVIN;DEPUY SYNTHES PRODUCTS, LLC |
发明人 |
MOUMENE MISSOUM;AFSHARI PAYMAN;FANGER JONATHAN;FLAHERTY KEVIN |
分类号 |
A61B17/70 |
主分类号 |
A61B17/70 |
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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