Nuclear implant apparatus and method following partial nuclectomy
    8.
    发明授权
    Nuclear implant apparatus and method following partial nuclectomy 有权
    核部植入装置和部分切除术后的方法

    公开(公告)号:US09486323B1

    公开(公告)日:2016-11-08

    申请号:US14934987

    申请日:2015-11-06

    IPC分类号: A61F2/44

    摘要: An expandable implant for augmenting a damaged or otherwise torn posterior annulus fibrosus. The implant is deployable into an evacuated posterior disc space following a subtotal nuclectomy. The implant includes an inflatable balloon which is fixed to the annulus fibrosus to protect against migration. When inflated with a curable polymer, the posterior wall of the implant is intimately disposed along the inner surface of the annulus fibrosus to provide a substantially fluid-tight seal of the annular tear or defect and reinforce the weakened posterior annulus. The anterior wall of the implant sequesters the nuclear remnant to guard against disc remnant herniation. The implant can restore intradiscal pressure and disc height. An integrated posterior reinforcement band creates a strong, yet flexible and resilient structure, resistant to penetration of the implant through the annular tear or defect.

    摘要翻译: 用于增加损伤或其他撕裂的后纤维环的可扩张植入物。 小切口切除术后,植入物可部署到撤离后的椎间盘内。 植入物包括可膨胀气囊,其被固定到纤维环上以防止迁移。 当用可固化聚合物充气时,植入物的后壁沿着纤维环的内表面紧密地设置,以提供环形撕裂或缺损的基本上流体密封的密封,并加强弱化的后环。 植入物的前壁隔离核残留物以防止椎间盘残留突出。 植入物可以恢复椎间盘内压力和椎间盘高度。 一体化后部加固带产生强大而又柔性和弹性的结构,抵抗植入物通过环形撕裂或缺陷的穿透。