Non-destructive method for evaluating the strength of cancellous bone
    5.
    发明授权
    Non-destructive method for evaluating the strength of cancellous bone 有权
    用于评估松质骨强度的非破坏性方法

    公开(公告)号:US07448264B2

    公开(公告)日:2008-11-11

    申请号:US10884097

    申请日:2004-07-02

    IPC分类号: G01M19/00

    CPC分类号: G01N33/4833 G01N2203/0089

    摘要: A non-destructive method for evaluating the strength of cancellous bone includes the steps of performing at least two of the following tests on each cancellous bone of a population of cancellous bones: a manual compression test, an apparent density test, and an appearance test; determining a compressive strength for each cancellous bone based on the two tests performed; comparing the determined compressive strength of each cancellous bone against a predetermined compressive strength requirement; and, eliminating a subset of cancellous bone from the population of cancellous bone, which subset of cancellous bone fails to meet the predetermined compressive strength requirement.

    摘要翻译: 用于评价松质骨强度的非破坏性方法包括以下步骤:对松质骨群体的每个松质骨执行以下测试中的至少两项:手动压缩试验,表观密度试验和外观试验; 基于所进行的两次测试确定每个松质骨的抗压强度; 将每个松质骨的确定的抗压强度与预定的抗压强度要求进行比较; 并且从松质骨群体中消除松质骨的子集,松质骨的哪一个子组不能满足预定的抗压强度要求。

    Surgical bone screw
    6.
    发明授权
    Surgical bone screw 失效
    手术骨螺钉

    公开(公告)号:US06368322B1

    公开(公告)日:2002-04-09

    申请号:US09542556

    申请日:2000-04-03

    IPC分类号: A61B1786

    摘要: An interference screw suitable for surgical use is provided. The interference screw is constructed from bone and includes an elongated body having an outer threaded surface, a tapered insertion end and a central throughbore. Insertion tool engaging structure is formed along the walls defining the throughbore. The insertion tool engaging structure extends from the proximal end of the elongated body over a substantial portion of the length of the elongated body. The insertion tool engaging structure functions to distribute the forces required to insert the interference screw throughout the body of the interference screw to prevent fracturing of the interference screw during insertion into bone.

    摘要翻译: 提供适合于外科手术的干涉螺钉。 干涉螺钉由骨构成并且包括具有外螺纹表面,锥形插入端和中心穿透孔的细长主体。 插入工具接合结构沿着限定穿透孔的壁形成。 插入工具接合结构在细长体的长度的大部分上从细长体的近端延伸。 插入工具接合结构用于分配将干涉螺钉插入干涉螺钉的整个主体所需的力,以防止在插入骨中时干扰螺钉的断裂。

    Implant retaining device
    8.
    发明授权
    Implant retaining device 有权
    植入物保持装置

    公开(公告)号:US08672980B2

    公开(公告)日:2014-03-18

    申请号:US12861902

    申请日:2010-08-24

    IPC分类号: A61B17/70

    摘要: There is provided an implant retaining device, which has the effect of preventing an intervertebral implant from jutting out of the receiving bed. The implant retaining device generally includes a plate having at least one throughbore to receive a screw, and a screw for securing the plate to the vertebrae. The plate may be dimensioned to cover a portion of the opening of a receiving bed, and thus, need only be secured to a single vertebral body. In an alternate embodiment, the plate may be used during bone fracture correction procedures to prevent a bone screw from backing out of engagement with adjacent bone sections. A method of retaining an intervertebral implant using the device is also provided.

    摘要翻译: 提供了一种植入物保持装置,其具有防止椎间植入物从接受床突出的作用。 植入物保持装置通常包括具有至少一个通孔以容纳螺钉的板和用于将板固定到椎骨的螺钉。 该板的尺寸可以确定为覆盖接收床的开口的一部分,因此仅需要固定到单个椎体。 在替代实施例中,可以在骨折矫正程序期间使用该板,以防止骨螺钉脱离与相邻骨段的接合。 还提供了使用该装置保持椎间植入物的方法。