Surgical measurement and resection framework
    34.
    发明授权
    Surgical measurement and resection framework 有权
    手术测量和切除框架

    公开(公告)号:US07507242B2

    公开(公告)日:2009-03-24

    申请号:US10990191

    申请日:2004-11-15

    IPC分类号: A61F5/00

    摘要: A frame is attachable to first and second bone portions of a patient to facilitate measurement and resection of one or more bony landmarks. The frame has two anchoring features, each of which has a semispherical surface that permits rotational adjustment of the frame against the bone portions until the frame is secured. A bridging structure couples the anchoring features together such that the anchoring features are lockably movable with respect to each other. The bridging structure may have three linear sliders that provide the relative motion. A locking mechanism exerts pressure on all three sliders to lock them in place. An external anchoring feature enables attachment of the frame to a stationary reference to stabilize the frame. The frame also has registration features that permit attachment of measurement or resection tools to the frame. The frame is particularly useful for measuring and resecting spinal facets for facet replacement.

    摘要翻译: 框架可附接到患者的第一和第二骨部分,以便于测量和切除一个或多个骨骼地标。 框架具有两个锚固特征,每个锚定特征具有半球形表面,其允许框架相对于骨部分的旋转调节,直到框架被固定。 桥接结构将锚定特征联接在一起,使得锚定特征可相对于彼此锁定地移动。 桥接结构可以具有提供相对运动的三个线性滑块。 锁定机构对所有三个滑块施加压力以将它们锁定在适当位置。 外部锚固特征使得能够将框架附接到固定基准件以稳定框架。 该框架还具有允许将测量或切除工具附接到框架的配准特征。 该框架特别适用于测量和切除脊柱面用于小面置换。

    Polyaxial orthopedic fastening apparatus
    37.
    发明授权
    Polyaxial orthopedic fastening apparatus 有权
    多轴矫形紧固装置

    公开(公告)号:US07993373B2

    公开(公告)日:2011-08-09

    申请号:US11063941

    申请日:2005-02-22

    IPC分类号: A61B17/70

    摘要: An orthopedic fastener is designed to attach an implant to bone in such a manner that, until the fastener is tightened, the implant may be rotationally adjusted against the bone. The implant may have a semispherical bone apposition surface that permits polyaxial rotation of the implant against the bone. The orthopedic fastener has an interpositional member and a compression member. The interpositional member may be a split ring with a conical exterior surface that mates with a conical surface of the implant. The compression member has a threaded bore that engages a proximal end of a fixation member implanted in the bone such that, in response to rotation of the compression member, the interpositional member is sandwiched securely between the implant and the compression member. The conical surface of the implant compresses the interpositional member about a semispherical surface of the compression member, thereby restricting rotation of the implant.

    摘要翻译: 矫形紧固件被设计成将植入物附接到骨头上,使得直到紧固件被紧固为止,植入物可以相对于骨骼旋转调节。 植入物可以具有允许植入物相对于骨的多轴旋转的半球形骨位置表面。 矫形紧固件具有插入构件和压缩构件。 插入构件可以是具有与植入物的锥形表面配合的锥形外表面的开口环。 压缩构件具有螺纹孔,其接合植入骨中的固定构件的近端,使得响应于压缩构件的旋转,插入构件被牢固地夹在植入物和压缩构件之间。 植入物的锥形表面围绕压缩构件的半球形表面压缩插入构件,从而限制植入物的旋转。