Devices and methods for disc nucleus replacement
    14.
    发明授权
    Devices and methods for disc nucleus replacement 失效
    椎间盘置换术的装置和方法

    公开(公告)号:US07618457B2

    公开(公告)日:2009-11-17

    申请号:US11201837

    申请日:2005-08-10

    IPC分类号: A61F2/44

    摘要: The present disclosure concerns implants to at least partially replace the nucleus of a spinal disc. In one embodiment, a prosthetic structure is provided which includes a bag operable to contain at least one internal implant within the bag. In another embodiment, a sinusoidal-shaped structure made of a flexible material is provided with various unique configurations to act as the internal implant and once released from a stretched or compressed configuration resumes nearly its original shape. In one embodiment, for delivery, a sinusoidal-shaped structure may be in a reduced amplitude state. In another embodiment, a sinusoidal-shaped structure is alternately woven from one end to the other with a second sinusoidal-shaped structure.

    摘要翻译: 本公开涉及至少部分地替代脊椎盘的核的植入物。 在一个实施例中,提供了一种假体结构,其包括可操作以在袋内容纳至少一个内部植入物的袋。 在另一个实施例中,由柔性材料制成的正弦形结构被提供有各种独特的构造以用作内部植入物,并且一旦从拉伸或压缩构型释放,恢复到几乎其原始形状。 在一个实施例中,为了传送,正弦形结构可以处于减小的幅度状态。 在另一个实施例中,正弦形结构从一端交替地以第二正弦形结构编织。

    Translaminar facet augmentation and flexible spinal stabilization
    19.
    发明授权
    Translaminar facet augmentation and flexible spinal stabilization 有权
    翻译面增加和柔性脊柱稳定

    公开(公告)号:US07799057B2

    公开(公告)日:2010-09-21

    申请号:US11218846

    申请日:2005-09-02

    IPC分类号: A61B17/70

    摘要: The present invention is an apparatus and method for stabilizing the facet joints of the spine. One aspect of the present invention is the stabilization of the facet joint by insertion of a facet implant through two opposing facet surfaces. The facet joint is not fixedly frozen by insertion of the screw, but instead the facet surfaces are flexibly and movably anchored to preserve movement because the screw or anchor includes a flexible intermediate portion which is positioned between the facet surfaces. The facet implant may be in the form of a screw or other anchor with the intermediate portion in the form of a polyaxial head, a cord, a spring, etc. The facet implant may furthermore be used in conjunction with a facet spacer that is placed between the first and second facet.

    摘要翻译: 本发明是用于稳定脊柱的小关节的装置和方法。 本发明的一个方面是通过将小面植入物插入两个相对的小面表面来稳定小关节。 小关节没有通过插入螺钉而被固定地冻结,而是由于螺钉或锚固件包括位于小面之间的柔性中间部分,所以可以灵活地和可动地锚固小面以保持运动。 小面植入物可以是螺钉或其它锚固件的形式,其中间部分是多轴头,绳索,弹簧等形式。小面植入物还可以与放置的小平台间隔件结合使用 在第一和第二面之间。

    PHASE SEPARATED, BRANCHED, COPOLYMER HYDROGEL
    20.
    发明申请
    PHASE SEPARATED, BRANCHED, COPOLYMER HYDROGEL 失效
    相分离,分支,共聚物HYDROGEL

    公开(公告)号:US20090124722A1

    公开(公告)日:2009-05-14

    申请号:US11938488

    申请日:2007-11-12

    IPC分类号: C08F120/56

    摘要: The present invention provides a hydrogel composition comprising a mixture of a hydrophilic polymer and a polymer chain modifying agent, wherein the polymer chain modifying agent is selected from the group consisting of an aromatic tetracarboxylic dianhydride, a titanate, and a polyetherimide. The present invention also provides a method for producing a phase separated, branched, copolymer hydrogel comprising a mixture of a hydrophilic polymer and a polymer chain modifying agent. The present invention also provides an implantable medical device comprising a phase separated, branched, copolymer hydrogel wherein the phase separated, branched, copolymer hydrogel is formed of a hydrophilic polymer and a polymer chain modifying agent.

    摘要翻译: 本发明提供包含亲水性聚合物和聚合物链改性剂的混合物的水凝胶组合物,其中所述聚合物链改性剂选自芳族四羧酸二酐,钛酸酯和聚醚酰亚胺。 本发明还提供一种制备包含亲水性聚合物和聚合物链改性剂的混合物的相分离的支链共聚物水凝胶的方法。 本发明还提供了一种可植入医疗装置,其包括相分离的支链共聚物水凝胶,其中相分离的支化共聚物水凝胶由亲水性聚合物和聚合物链改性剂形成。