Dual spring posterior dynamic stabilization device with elongation limiting elastomers
    3.
    发明授权
    Dual spring posterior dynamic stabilization device with elongation limiting elastomers 有权
    双弹簧后动态稳定装置,伸长限制弹性体

    公开(公告)号:US08641734B2

    公开(公告)日:2014-02-04

    申请号:US12432141

    申请日:2009-04-29

    IPC分类号: A61B17/70

    CPC分类号: A61B17/7028 A61B17/7031

    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.

    摘要翻译: 后期动态稳定(PDS)装置,其调节生理性脊柱伸长和压缩。 伸长和压缩的调节是后动态稳定装置的关键要求。 该装置的伸长和压缩允许椎弓根在脊柱弯曲并延伸时自然行进。 一些常规的PDS设备,简单地允许弯曲,这种间隙行程保持了更自然的旋转中心。 该装置包括两个组件:1)允许伸长/压缩的弹簧,以及2)用于在剪切,弯曲和张力中增加装置刚度的聚合物芯部件,并且还防止软组织向内生长。

    Telescopic Rod For Posterior Dynamic Stabilization
    4.
    发明申请
    Telescopic Rod For Posterior Dynamic Stabilization 审中-公开
    用于后动态稳定的伸缩杆

    公开(公告)号:US20100211105A1

    公开(公告)日:2010-08-19

    申请号:US12414500

    申请日:2009-03-30

    IPC分类号: A61B17/70 A61B17/88

    CPC分类号: A61B17/7025 A61B17/7031

    摘要: A Posterior Dynamic Stabilization (PDS) device having a telescopic sub-assembly that allows axial movement but restricts bending, shear and in some configurations torsion, and an outer polymeric sleeve component that primarily resists elongation and axial rotation but also encapsulates the telescopic assembly to prevent tissue ingrowth.

    摘要翻译: 后部动态稳定(PDS)装置具有允许轴向移动但限制弯曲,剪切和一些构型扭转的可伸缩子组件,以及主要抵抗伸长和轴向旋转的外部聚合物套筒部件,但也封装了伸缩组件以防止 组织向内生长。