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发明公开
CN105640675A 具有可扩展的固定装置的脊柱植入物 无效 - 撤回

具有可扩展的固定装置的脊柱植入物
摘要：
本发明涉及一种脊柱植入物，其被构造成在相邻椎骨体之间展开。该植入物具有至少一个固定元件(18,19)，所述固定元件具有用以方便植入物展开的缩回构造和用以接合相邻椎骨体的表面并将植入物固定在两个椎骨体之间的伸展构造。优选地，植入物是可扩展的并且在其未扩展状态下具有小于神经孔尺寸的最小尺寸，植入物必须穿过该神经孔以在椎骨间空间内展开。一旦处于椎骨体之间的空间内，植入物就可以扩展以便接合相邻椎骨的端板，从而有效地牵引前部椎骨间盘空间、固定运动节段并阻止病理脊柱运动。可以矫正角畸形，并且恢复和保持自然曲率。
摘要（英）：

The invention relates to a spinal implant which is configured to be deployed between adjacent vertebral bodies. The implant has at least one extendable support element (18, 19) with a retracted configuration to facilitate deployment of the implant and an extended configuration so as to expand the implant and effectively distract the disc space, stabilize the motion segments and eliminate pathologic spine motion. Preferably, the implant is expandable and has a minimal dimension in its unexpanded state that is smaller than the dimensions of the neuroforamen through which it must pass to be deployed within the intervertebral space. Once within the space between vertebral bodies, the implant can be expanded so as to engage the endplates of the adjacent vertebrae to effectively distract the anterior disc space, stabilize the motion segments and eliminate pathologic spine motion. Angular deformities can be corrected, and natural curvatures restored and maintained.

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