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    • 5. 发明授权
    • Patella reaming system
    • 髌骨扩孔系统
    • US5536271A
    • 1996-07-16
    • US252885
    • 1994-06-02
    • Anne M. DalyTimothy J. BlackwellTroy D. Martin
    • Anne M. DalyTimothy J. BlackwellTroy D. Martin
    • A61B17/16A61B17/17A61B17/56
    • A61B17/1677A61B17/1767A61B2017/1602
    • A system is disclosed for preparing a natural patella for implantation of a patellar prosthesis. Substantially the same amount of bone removed from the natural patella is replaced by the prosthesis so that the reconstructed patella will replicate the natural one in diameter and thickness. To this end, the patella is held stationary and two operations are performed simultaneously. First, a posterior side of the patella is resected to form a prosthesis receiving surface for reception of a fixation surface of the patellar prosthesis. Second, a mounting bore is formed into the resected surface of the patella for reception of fixation members of the patellar prosthesis. A reamer is guided for movement between a first position spaced from the posterior surface of the patella and a second position in operative engagement with the patella at which formation of both the receiving surface and of the mounting bore therein has been completed. The reamer is stopped at the second position which is preselected according to the thickness of the patella such that the amount of the patella removed is substantially equal to the thickness of the patellar prosthesis.
    • 公开了一种用于制备用于植入髌骨假体的天然髌骨的系统。 基本上从天然髌骨移除的骨量相同,由假体代替,使得重建的髌骨将复制直径和厚度的天然髌骨。 为此,髌骨保持静止,同时进行两次手术。 首先,切除髌骨的后侧以形成用于接收髌骨假体的固定表面的假体接收表面。 其次,安装孔形成在髌骨的切除表面中,用于接收髌骨假体的固定构件。 导向器用于在与髌骨的后表面间隔开的第一位置和与髌骨有效接合的第二位置之间移动,在该髌骨处,接收表面和其中的安装孔的形成已经完成。 铰刀被停止在根据髌骨厚度预选的第二位置,使得髌骨的移除量基本上等于髌骨假体的厚度。
    • 7. 发明授权
    • Finely adjustable resection assembly
    • 精细可调的切除组件
    • US07670344B2
    • 2010-03-02
    • US11410404
    • 2006-04-25
    • Diane L. BiharyTroy D. Martin
    • Diane L. BiharyTroy D. Martin
    • A61F5/00
    • A61B17/157
    • A finely-adjustable resection guide has two bodies pivotally connected to each other. One of the bodies has a plurality of threaded through-bores extending in perpendicular directions through the body. Two thumbscrews extend through the threaded through-bores. The thumbscrews can translate linearly with respect to the body as they are turned. A cutting block is pivotally connected to the body that has the thumbscrews. Linear translation of one of the thumbscrews causes the cutting guide surface of the cutting block to pivot about one axis and linear translation of the other thumbscrew causes the cutting guide surface to pivot about another axis that is perpendicular to the first axis. A third threaded member is provided to adjust the proximal-distal position of the cutting guide surface.
    • 精细可调节的切除引导件具有彼此枢转连接的两个主体。 其中一个主体具有穿过主体的垂直方向延伸的多个螺纹通孔。 两个指旋螺丝穿过螺纹穿孔。 指旋螺钉在转动时可以相对于身体线性平移。 切割块枢转地连接到具有指旋螺钉的主体。 一个指旋螺钉的直线平移导致切割块的切割引导表面围绕一个轴线枢转,并且另一个指旋螺旋线的直线平移导致切割引导表面围绕垂直于第一轴线的另一个轴线枢转。 提供第三螺纹构件以调节切割引导表面的近端远端位置。