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    Unitary locking cap for use with a pedicle screw
    2.
    发明授权
    Unitary locking cap for use with a pedicle screw 失效
    单一锁定帽，用于椎弓根螺钉

    公开(公告)号：US5667508A

    公开(公告)日：1997-09-16

    申请号：US641504

    申请日：1996-05-01

    Applicant: Thomas J. Errico ,  James D. Ralph ,  Steven Tatar

    Inventor： Thomas J. Errico ,  James D. Ralph ,  Steven Tatar

    IPC: A61B17/58 ,  A61B17/70 ,  A61B17/86 ,  A61F2/44

    CPC classification number: A61B17/7032 ,  A61B2017/867

    Abstract: A unitary locking cap mechanism, which is used with pedicle screws and other orthopaedic implant devices which couple bones to rods, includes rim and post portions which are rotationally freely coupled to one another to permit independent motion relative to one another. The rim element has a cylindrical body with an open end and a closed end; the closed end alternatively having a concentric hole defined by an inwardly directed flange. In one embodiment, the flange includes a series of slots, dividing into a plurality of wedge-shaped pie sections. In another embodiment, the sidewall of the cylindrical portion of the rim includes an annular recess. The post is a cylindrical shaft having surface elements at one end which provide for mutual engagement with the rim. These surface elements may be deflecting arms which seat into the annular recess of the rim, or an annular recess in the shaft into which the wedge-shaped pie sections of the flange portion may be resiliently snapped into. In an alternative embodiment, the shaft and the rim are coupled together through the concentric hole by a retaining ring which is placed around the shaft, in an annular recess therein, after the insertion of the shaft through the hole. Each embodiment are alternatively designed such that the post or the inner surface of the rim portions are threaded so that it can mate with a threading on the inner or outer upwardly extending, U-shaped channel forming, members of the heads of the pedicle screws.

    Abstract translation: 与椎弓根螺钉和将骨骼连接到杆的其他矫形植入装置一起使用的单一锁定帽机构包括轮缘和后部，其相互旋转地自由联接以允许彼此独立运动。 轮辋元件具有开口端和封闭端的圆柱体; 封闭端可替代地具有由向内指向的凸缘限定的同心孔。 在一个实施例中，凸缘包括一系列狭槽，其分成多个楔形馅饼部分。 在另一个实施例中，边缘的圆柱形部分的侧壁包括环形凹部。 该柱是圆柱形轴，其一端具有表面元件，其提供与轮缘的相互接合。 这些表面元件可以是位于轮辋的环形凹部中的偏转臂或者轴中的环形凹部，凸缘部分的楔形饼形部分可以弹性地卡入其中。 在替代实施例中，轴和边缘通过保持环通过同心孔联接在一起，该保持环在轴插入孔之后围绕轴放置在环形凹部中。 每个实施例可选地设计成使得边缘部分的柱或内表面是螺纹的，使得其可以与形成椎弓根螺钉的头部构件的内部或外部向上延伸的U形通道上的螺纹配合。

    Insertion tool for use with trial intervertebral distraction spacers
    3.
    发明授权
    Insertion tool for use with trial intervertebral distraction spacers 失效
    插入工具用于试验性椎间牵引垫片

    公开(公告)号：US06855151B2

    公开(公告)日：2005-02-15

    申请号：US10115751

    申请日：2002-04-03

    Applicant: James D. Ralph ,  Steven Tatar ,  Thomas J. Errico

    Inventor： James D. Ralph ,  Steven Tatar ,  Thomas J. Errico

    IPC: A61B17/02 ,  A61F2/46 ,  A61B17/58

    CPC classification number: A61B17/025 ,  A61B2017/0256 ,  A61F2/4684

    Abstract: An instrument for inserting and removing an intervertebral spacer into and out from an intervertebral space between adjacent vertebral bones, the spacer having a trunk portion having a longitudinal axis and flange portions at each longitudinal end of the trunk, the instrument including: a shaft having a proximal end and a distal end; the proximal end including a handle; and a holding structure provided at the distal end, which holding structure includes an enclosure within which the trunk of the spacer may be selectively introduced and maintained therein, the holding structure having an opening leading to the enclosure and through which opening the trunk of the spacer may be selectively passed to when forced therethough.

    Abstract translation: 一种用于将椎间隔垫插入和移出相邻椎骨之间的椎间空间的仪器，所述间隔件具有躯干部分，所述躯干部分具有纵向轴线，并且在躯干的每个纵向端处具有凸缘部分，所述器械包括：轴，其具有 近端和远端; 所述近端包括手柄; 以及保持结构，其设置在所述远端，所述保持结构包括外壳，所述间隔件的主体可以选择性地引入并保持在所述外壳内，所述保持结构具有通向所述外壳的开口，并且所述保持结构通过所述开口穿过所述间隔件 可能会被选择性地传递到当强制的时候。

    Insertion tool for use with tapered trial intervertebral distraction spacers
    8.
    发明授权
    Insertion tool for use with tapered trial intervertebral distraction spacers 有权
    插入工具用于锥形试验椎间牵引垫片

    公开(公告)号：US06478801B1

    公开(公告)日：2002-11-12

    申请号：US09906121

    申请日：2001-07-16

    Applicant: James D. Ralph ,  Steven Tatar ,  Thomas J. Errico

    Inventor： James D. Ralph ,  Steven Tatar ,  Thomas J. Errico

    IPC: A61B1758

    CPC classification number: A61F2/4684 ,  A61F2/442 ,  A61F2/4611 ,  A61F2002/30772 ,  A61F2002/3082

    Abstract: An instrument for insertion, implanting, and removing a cylindrical inter vertebral spacer member having a deep circumferential groove, including: a shaft having a proximal end and a distal end, said proximal end forming a handle and the distal end forming a spacer member engaging subassembly; said spacer member engaging subassembly including at least one selectively expanding and contracting enclosure into which a central core of the spacer member may be introduced when the engaging subassembly is in the expanded state, and which holds the spacer member so that it cannot move when the selectively expanding and contracting enclosure is rendered into the contracted state; and an actuating mechanism, extending from the proximal end to the distal end, by which the spacer member engaging subassembly may be selectively expanded and contracted.

    Abstract translation: 一种用于插入，植入和移除具有深的周向凹槽的圆柱形椎间隔构件的器械，包括：具有近端和远端的轴，所述近端形成手柄，并且所述远端形成间隔件接合子组件 ; 所述间隔构件接合子组件包括至少一个选择性地膨胀和收缩的外壳，当接合子组件处于膨胀状态时，隔离构件的中心芯可以被引入到其中，并且保持间隔件，使得当选择性地 扩大和收缩的围墙被纳入合同国家; 以及从近端延伸到远端的致动机构，通过该致动机构可以选择性地扩展和收缩间隔件接合子组件。

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