Variable stiffness support members
    24.
    发明授权
    Variable stiffness support members 有权
    可变刚度支撑构件

    公开(公告)号:US07875059B2

    公开(公告)日:2011-01-25

    申请号:US11624401

    申请日:2007-01-18

    IPC分类号: A61B17/70

    摘要: Spinal support members having varying stiffnesses are disclosed. In one embodiment, an elongated spinal prosthetic includes a pair of curved elongated portions. The portions are formed of materials having different stiffness characteristics such that the stiffness of the prosthetic varies along its length. In another embodiment, an elongated spinal implant includes a pair of threadedly engaged elongated sections. The first section is formed of a first material having a first rigidity. The second section has an inner portion formed of the first material and an outer portion formed of a second material. The second material is less rigid than the first material. In another embodiment, a modular spinal rod is provided. The modular spinal rod includes a pair of connectable rod portions with different stiffness characteristics. In yet another embodiment, a kit for a modular spinal rod includes a plurality of connectable modular rod portions having different stiffness characteristics.

    摘要翻译: 公开了具有变化的刚度的脊柱支撑构件。 在一个实施例中,细长的脊椎假体包括一对弯曲的细长部分。 这些部分由具有不同刚度特性的材料形成,使得假肢的刚度沿其长度变化。 在另一个实施例中,细长脊柱植入物包括一对螺纹接合的细长部分。 第一部分由具有第一刚性的第一材料形成。 第二部分具有由第一材料形成的内部部分和由第二材料形成的外部部分。 第二种材料刚性比第一种材料硬。 在另一个实施例中,提供了一种模块化脊柱杆。 模块化脊柱杆包括具有不同刚度特性的一对可连接杆部分。 在另一个实施例中,用于模块化脊柱杆的套件包括具有不同刚度特性的多个可连接的模块化杆部分。

    Intervertebral prosthetic disc and method of installing same
    25.
    发明申请
    Intervertebral prosthetic disc and method of installing same 审中-公开
    椎间盘假体及其安装方法

    公开(公告)号:US20070173941A1

    公开(公告)日:2007-07-26

    申请号:US11339308

    申请日:2006-01-25

    申请人: Randall Allard

    发明人: Randall Allard

    IPC分类号: A61F2/44

    摘要: An intervertebral prosthetic disc that is configured to be installed within an intervertebral space that can be established between an inferior vertebra and a superior vertebra is disclosed. The intervertebral prosthetic disc includes an inferior articular half that can be configured to engage the inferior vertebra and a superior articular half that can be configured to engage the superior vertebra. The inferior articular half can be configured to cooperate with the superior articular half to allow relative angular motion between the inferior vertebra and the superior vertebra when installed. Further, the intervertebral prosthetic device can be sized and shaped to pass through a psoas muscle without injuring a spinal cord or a sympathetic chain.

    摘要翻译: 公开了一种被配置为安装在可以在下椎骨和上脊椎之间建立的椎间空间内的椎间假体盘。 椎间假体盘包括下关节半部,其可被配置为接合下椎骨,以及可被配置为接合上椎骨的上关节半部。 下关节半部可以被配置为与上关节半部配合,以允许在安装后的下椎骨和上椎骨之间的相对角运动。 此外,椎间假体装置的尺寸和形状可以通过腰肌而不损伤脊髓或交感神经链。