Cam action vertebral spreader
    1.
    发明授权
    Cam action vertebral spreader 有权
    凸轮动作椎体吊具

    公开(公告)号:US06709438B2

    公开(公告)日:2004-03-23

    申请号:US09923063

    申请日:2001-08-06

    IPC分类号: A61B1766

    摘要: This invention comprises an apparatus and a method of spreading an intervertebral space to help guide tools that will prepare the vertebrae for accepting an implant. The spreader is a thin blade with cam surfaces forming a paddle on the proximal end, which spreads the vertebra when rotated 90 degrees about its axis. A stem between the paddle and a handle is notched to clear the vertebral protrusions so the vertebra will be distracted on the vertebral end plates. Since the spreader is in the center of the end plates, the centerline of the spreader shaft will coincide with the vertebral end plate centerline. The surgeon can monitor the spreading, stop and remove the spreader to make adjustments or to change the size of spreader as required at the time of the surgery. Once the vertebrae are distracted a tube may be placed over the handle and aligned with the vertebral end plates.

    摘要翻译: 本发明包括扩展椎间空间的装置和方法,以帮助引导准备用于接受植入物的椎骨的工具。 撒布机是一种薄刀片,凸轮表面在近端形成一个桨叶,当围绕其轴线旋转90度时,椎骨会扩展椎骨。 在桨和手柄之间的杆被切口以清除脊椎突起,使得椎骨将在椎骨端板上分心。 由于吊具位于端板的中心,所以吊具轴的中心线与椎体终板中心线重合。 外科医生可以根据手术时的需要监测扩张,停止和移除吊具进行调整或改变吊具的尺寸。 一旦椎骨分心,可以将管子放置在手柄上并与椎骨端板对齐。

    Method and apparatus utilizing interference fit screw shanks for nonmetallic spinal stabilization
    3.
    发明授权
    Method and apparatus utilizing interference fit screw shanks for nonmetallic spinal stabilization 有权
    使用过盈配合螺钉柄进行非金属脊柱稳定的方法和装置

    公开(公告)号:US06695845B2

    公开(公告)日:2004-02-24

    申请号:US09977663

    申请日:2001-10-15

    IPC分类号: A61B1758

    摘要: A device and a method for stabilizing cervical vertebrae in a human spine for the purpose of fixing one vertebra with respect to other vertebrae and with respect to other parts of the spinal column. This device comprises a plate and bone screws fabricated from non-metals. The bone screws maintain the plate in contact with the vertebrae. An interference fit screw head is pulled into a hole in the plate and into a machined hole in the vertebral bone, locking the screw to the plate and locking the screw to the bone. This locking reduces the screw bending within the plate and within the bone. The screw thread runout is threaded below the screw/bone interference fit area, protecting the runout stress raisers from bending and shear stresses. The interference fit is configured to create sufficient friction to eliminate the screw from backing out.

    摘要翻译: 一种用于在人类脊柱中稳定颈椎的装置和方法,其目的是相对于其他椎骨和相对于脊柱的其他部分固定一个椎骨。 该装置包括由非金属制成的板和骨螺钉。 骨螺钉使板与椎骨保持接触。 将过盈配合的螺钉头拉入板中的孔中并进入椎骨中的加工孔中,将螺钉锁定到板上并将螺钉锁定到骨上。 该锁定减少了板内和骨骼内的螺钉弯曲。 螺纹螺纹穿过螺纹/骨头过盈配合区域以下螺纹,保护跳动应力提升器免受弯曲和剪切应力的影响。 过盈配合被配置成产生足够的摩擦力以消除螺丝脱离。

    Dynamized vertebral stabilizer using an outrigger implant
    4.
    发明授权
    Dynamized vertebral stabilizer using an outrigger implant 有权
    使用外伸支架植入物的动态椎体稳定器

    公开(公告)号:US06682530B2

    公开(公告)日:2004-01-27

    申请号:US10340967

    申请日:2003-01-13

    IPC分类号: A61B1770

    摘要: A device and a method for stabilizing lumbar and thoracic vertebra or individual bones in human spine or bone column is provided for the purpose of fixing a vertebra or individual bone with respect to other vertebra or individual bones and with respect to other parts of the spinal or bone column. While providing spinal stabilization, the stabilizer allows axial load sharing or construct dynamized action. The device allows the vertebra or individual bones to be held in compression allowing subsidence along the plate axis or to be fixed with respect to the plate for rigid stabilization. The vertebra or individual bones will be prevented from distraction by a stop lock clamp. The device may be configured as a fully or partially rigid system.

    摘要翻译: 提供一种用于稳定人脊柱或骨柱中的腰椎和胸椎或单个骨的装置和方法,用于相对于其他椎骨或个体骨骼以及相对于脊柱或骨的其他部分固定椎骨或单个骨骼 骨柱。 在提供脊柱稳定性的同时,稳定器允许轴向负载共享或构造动态作用。 该装置允许椎骨或单个骨保持压缩,允许沿板轴下沉或相对于板固定以进行刚性稳定。 椎骨或个体骨骼将被阻止锁定夹子分心。 该装置可以被配置为完全或部分刚性的系统。

    Hand operated end cutting sheet metal shear

    公开(公告)号:US06591506B2

    公开(公告)日:2003-07-15

    申请号:US09945925

    申请日:2001-09-04

    申请人: Donald J Hackman

    发明人: Donald J Hackman

    IPC分类号: B26B1702

    CPC分类号: B23D29/005

    摘要: This invention describes a hand operated, end cutting, sheet metal shear that makes cuts perpendicular to the axis of the tool handle. The shearing surfaces consist of a moving shear blade with a fixed rake angle and shear angle, cutting along a blunt anvil. The shear blade is pivotally mounted to the tool body and actuated by a toggle linkage and a movable handle. A stroke adjustment screw is incorporated into the fixed handle. The blade passes along the fixed anvil in response to squeezing the handles. The blade is angled so that the shearing action takes place sequentially along the anvil edge. The end cutting sheet metal tool is used to produce cuts at an angle to cuts made with sheet metal cutting tools.