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    Patella recession instrument and method for anatomically-shaped patellar prostheses
    7.
    发明授权
    Patella recession instrument and method for anatomically-shaped patellar prostheses 失效
    髌骨切除仪器及解剖形状髌骨假体的方法

    公开(公告)号：US5716360A

    公开(公告)日：1998-02-10

    申请号：US497537

    申请日：1995-06-30

    申请人： James L. Baldwin ,  James M. Freid ,  Steven I. Whitlock ,  Mark L. Rehmann

    发明人： James L. Baldwin ,  James M. Freid ,  Steven I. Whitlock ,  Mark L. Rehmann

    IPC分类号： A61B17/16 ,  A61B17/17 ,  A61B19/00 ,  A61B17/56

    CPC分类号： A61B17/1677 ,  A61B17/1767 ,  A61B2017/1602 ,  A61B2090/033

    摘要： A patella recession instrument (10) and method provides a guide for producing an oval, tri-oval, or elliptically shaped recess on the posterior surface of the osteotomized patella for receiving a similarly shaped backing portion of a patellar implant. The apparatus includes a guide bushing (12) and a bushing positioning mechanism (14) for securing the bushing against the posterior of the osteotomized patella, with a guide opening (54) formed through the bushing covering the total area to be recessed. A reamer guide structure, which may be a separate structure (16) received in the bushing guide opening (54) or integrally formed with the bushing (12), receives one or more rotary reamer tools (18) in a plurality of reaming positions. The cutting face (80) of the rotary reamer tool (18) in each different reaming position covers a different portion of the total area to be recessed. The recession method includes securing the guide bushing (12) in the proper operating position against the patella, sequentially positioning the cutting face (80) of the reamer tool (18) or tools in the plurality of different reaming positions, and operating the tool or tools to produce a series of intermediate recesses that combine to approximate the total area to be recessed.

    摘要翻译： 髌骨衰退仪器（10）和方法提供了用于在截骨的髌骨的后表面上产生椭圆形，三椭圆形或椭圆形凹陷的引导件，用于接收髌骨植入物的类似形状的背衬部分。 所述装置包括用于将所述套管固定在所述截骨的髌骨的后部的引导衬套（12）和衬套定位机构（14），所述引导开口（54）穿过所述衬套形成，所述导向开口穿过所述衬套覆盖要被凹进的总体区域。 可以是容纳在衬套引导开口（54）中或与衬套（12）一体形成）的单独结构（16）的扩孔器引导结构在多个铰接位置中接收一个或多个旋转扩孔器工具（18）。 每个不同的铰接位置的旋转扩孔器工具（18）的切割面（80）覆盖要凹进的总面积的不同部分。 经济衰退的方法包括将引导衬套（12）固定在抵靠髌骨的适当操作位置，顺序地将扩孔器工具（18）的切割面（80）或工具放置在多个不同的铰孔位置中，并操作工具或 用于生产一系列中间凹槽的工具，其组合以接近要凹进的总面积。

    Spinal plate extender system and method
    8.
    发明授权
    Spinal plate extender system and method 失效
    脊柱扩张器系统及方法

    公开(公告)号：US07303564B2

    公开(公告)日：2007-12-04

    申请号：US10356391

    申请日：2003-01-31

    申请人： James M. Freid ,  Erik J. Wagner

    发明人： James M. Freid ,  Erik J. Wagner

    IPC分类号： A61B17/56 ,  A61F2/30

    CPC分类号： A61B17/8047 ,  A61B17/7059 ,  A61B17/808 ,  A61B17/8888 ,  A61B17/8894

    摘要： A bone plate system is provided which maintains intervertebral spacing and stability of a spine. In an embodiment, a bone plate system may include a base plate with an opening through which the fastener may be positioned to allow the fastener to be inserted into a human bone at a desired angle relative to the plate. Some embodiments of a bone plate system may include a base plate and an extender plate. An extender plate may be coupled to a base plate while the base plate is coupled to the bone.

    摘要翻译： 提供一种骨板系统，其保持脊柱的椎间间隙和稳定性。 在一个实施例中，骨板系统可以包括具有开口的基板，紧固件可以通过该开口定位，以允许紧固件相对于板以期望的角度插入人骨骼。 骨板系统的一些实施例可以包括基板和延伸板。 扩展板可以联接到基板，同时基板联接到骨。