Instruments For Minimally Invasive Surgery Total Knee Arthroplasty

    公开(公告)号:US20190150946A1

    公开(公告)日:2019-05-23

    申请号:US16155790

    申请日:2018-10-09

    Abstract: A surgical instrument for making femoral resections for seating a femoral implant on a distal femur, the instrument configured for orientation relative to an intramedullary rod. The instrument includes a medial distal cut guide having a cut guide portion, the cut guide portion having a cut slot therein for use in resecting a medial distal condyle of the femur. A medial distal cut paddle supports the medial distal cut guide. The medial distal cut paddle is configured to mount on the intramedullary rod to orient the medial distal cut slot substantially along an anterior-medial slope of the medial distal condyle when the medial distal cut paddle is mounted on the intramedullary rod to thereby define an anterior-medial approach for making a medial distal resection of the medial distal condyle.

    Instruments for minimally invasive surgery total knee arthroplasty
    2.
    发明授权
    Instruments for minimally invasive surgery total knee arthroplasty 有权
    微创手术全膝关节置换术

    公开(公告)号:US08734453B2

    公开(公告)日:2014-05-27

    申请号:US11358899

    申请日:2006-02-21

    Abstract: An anti-backout stylus comprising a stylus and a locking stylus holder. The locking stylus holder engages the stylus at a series of discrete positions during insertion of the stylus into the holder. The locking stylus holder prevents inadvertent backing out of the stylus by preventing the stylus from being withdrawn to a previous one of the discrete positions. The locking stylus holder can preferably be selectively disengaged from the stylus to allow for selective withdrawal of the stylus. Each engagement of one of the discrete positions by the locking stylus holder preferably indicates a femoral size. The discrete positions are preferably defined by detents formed on the stylus and a stop member on the locking stylus holder. The locking stylus holder can be provided on an anterior rough cut guide, with the anterior rough cut guide preferably mountable on an intramedullary rod.

    Abstract translation: 包括触针和锁定触笔支架的防背部触控笔。 在将触笔插入支架的过程中,锁定触笔座在一系列离散的位置处接合触针。 锁定触针支架通过防止触笔被取出到离散位置中的前一个位置来防止意外背出触针。 锁定触针支架可以优选地从触针选择性地脱离以允许选择性地拔出触针。 通过锁定触针保持器的离散位置之一的每个接合优选地表示股骨尺寸。 离散位置优选地由形成在触针上的制动器和锁定触针座上的止动构件限定。 锁定触针支架可以设置在前部粗切割引导件上,前部粗切割引导件优选地安装在髓内杆上。

    KNEE IMPLANT SYSTEM
    3.
    发明申请
    KNEE IMPLANT SYSTEM 有权
    KNEE植入系统

    公开(公告)号:US20130345820A1

    公开(公告)日:2013-12-26

    申请号:US13840931

    申请日:2013-03-15

    Abstract: Knee prosthesis includes a femoral component adapted to fit on a distal end of the femur and a tibial insert component. The femoral component includes a measured anterior/posterior dimension defined by the posterior condyle surface and the interior surface of the anterior flange and a distal peg provided on a distal bone facing surface of each of the lateral and medial condylar structures, wherein the distal pegs are positioned at a midpoint of the measured anterior/posterior dimension. The implant system provides two distinct sizing segments and the tibial insert has a medial tibial aspect ratio of 0.74 and a lateral tibial aspect ratio of 0.65 to 0.68 for all sizes.

    Abstract translation: 膝关节假体包括适于装配在股骨远端的股骨部件和胫骨插入部件。 股骨部件包括由后髁表面和前凸缘的内表面限定的测量的前/后尺寸,以及设置在每个侧向和内侧髁结构的远侧骨对表面上的远端栓,其中远端钉是 位于测量的前/后尺寸的中点。 植入系统提供两个不同的施胶段,并且胫骨插入物具有0.74的内侧胫骨长宽比和对于所有尺寸的胫骨外侧纵横比为0.65至0.68。

    Knee implant system
    4.
    发明授权
    Knee implant system 有权
    膝关节植入系统

    公开(公告)号:US08403994B2

    公开(公告)日:2013-03-26

    申请号:US13009158

    申请日:2011-01-19

    Abstract: Knee prosthesis includes a femoral component adapted to fit on a distal end of the femur and a tibial insert component. The femoral component includes a measured anterior/posterior dimension defined by the posterior condyle surface and the interior surface of the anterior flange and a distal peg provided on a distal bone facing surface of each of the lateral and medial condylar structures, wherein the distal pegs are positioned at a midpoint of the measured anterior/posterior dimension. The implant system provides two distinct sizing segments and the tibial insert has a medial tibial aspect ratio of 0.74 and a lateral tibial aspect ratio of 0.65 to 0.68 for all sizes.

    Abstract translation: 膝关节假体包括适于装配在股骨远端的股骨部件和胫骨插入部件。 股骨部件包括由后髁表面和前凸缘的内表面限定的测量的前/后尺寸,以及设置在每个侧向和内侧髁结构的远侧骨对表面上的远端栓,其中远端钉是 位于测量的前/后尺寸的中点。 植入系统提供两个不同的施胶段,并且胫骨插入物具有0.74的内侧胫骨长宽比和对于所有尺寸的胫骨外侧纵横比为0.65至0.68。

    Grating fastener
    5.
    发明授权
    Grating fastener 失效
    光栅紧固件

    公开(公告)号:US4362422A

    公开(公告)日:1982-12-07

    申请号:US186500

    申请日:1980-09-12

    CPC classification number: E04C2/428 F16B2/12 Y10T403/7117

    Abstract: A grating fastener is provided having a base member, a saddle clamp and a swivel clamp rotatably mounted on the base member and spring biased perpendicular to the base member for ease of installation. The fastener is easily installed by rotating the swivel clamp parallel to the base member and inserting the assembly between two adjacent bearing bars and allowing the swivel clamp to spring to its engaged position automatically engaging the bottoms of two adjacent bearing bars. The saddle clamp engages the tops of the same two bearing bars engaged by the swivel clamp.

    Abstract translation: 提供了一种格栅紧固件,其具有基部构件,鞍形夹具和可旋转地安装在基座构件上的旋转夹具,并且垂直于基座构件偏置的弹簧,以便于安装。 通过使旋转夹具平行于基部构件旋转并将组件插入两个相邻的支承杆之间并允许旋转夹具弹簧到其接合位置自动接合两个相邻支承杆的底部,从而容易地安装紧固件。 鞍座夹具与由旋转夹具接合的相同的两个轴承杆的顶部接合。

    KNEE IMPLANT SYSTEM
    6.
    发明申请
    KNEE IMPLANT SYSTEM 有权
    KNEE植入系统

    公开(公告)号:US20120185055A1

    公开(公告)日:2012-07-19

    申请号:US13009158

    申请日:2011-01-19

    Abstract: Knee prosthesis includes a femoral component adapted to fit on a distal end of the femur and a tibial insert component. The femoral component includes a measured anterior/posterior dimension defined by the posterior condyle surface and the interior surface of the anterior flange and a distal peg provided on a distal bone facing surface of each of the lateral and medial condylar structures, wherein the distal pegs are positioned at a midpoint of the measured anterior/posterior dimension. The implant system provides two distinct sizing segments and the tibial insert has a medial tibial aspect ratio of 0.74 and a lateral tibial aspect ratio of 0.65 to 0.68 for all sizes.

    Abstract translation: 膝关节假体包括适于装配在股骨远端的股骨部件和胫骨插入部件。 股骨部件包括由后髁表面和前凸缘的内表面限定的测量的前/后尺寸,以及设置在每个侧向和内侧髁结构的远侧骨对表面上的远端栓,其中远端钉是 位于测量的前/后尺寸的中点。 植入系统提供两个不同的施胶段,并且胫骨插入物具有0.74的内侧胫骨长宽比和对于所有尺寸的胫骨外侧纵横比为0.65至0.68。

    Tibial knee prosthesis
    7.
    发明授权
    Tibial knee prosthesis 有权
    胫骨假体

    公开(公告)号:US07261740B2

    公开(公告)日:2007-08-28

    申请号:US10696459

    申请日:2003-10-29

    CPC classification number: A61F2/389 A61F2002/30133 A61F2230/0015

    Abstract: A knee prosthetic including a tibial component defining medial and lateral concavities shaped to receive medial and lateral femoral condyles of the femur. The concavities have first portions for contact with the condyles during normal knee flexion and second portions for contact with the condyles during deep, or high, knee flexion. The medial concavity can include a conforming boundary that encompasses at least the first and second portions, wherein an area inside the conforming boundary has a generally flat surface. The flat surface allows the medial femoral condyle to slide and rotate posteriorly during high knee flexion. The conforming boundary can have a generally triangular shape with an apex extending anteriorly and a relatively wider base extending posteriorly, wherein the apex includes the first portion and the base includes the second portion. The relatively wider base portion advantageously allows additional area for posteriorly directed articulating contact during high knee flexion.

    Abstract translation: 一种膝关节假体,其包括限定内侧和外侧凹陷的胫骨部件,其形状用于接收股骨的内侧和外侧股骨髁。 凹陷具有在正常膝关节屈曲期间与髁部接触的第一部分,以及在深度或高度膝关节屈曲期间与髁突接触的第二部分。 内侧凹面可以包括至少包含第一和第二部分的符合边界,其中符合边界内的区域具有大致平坦的表面。 平坦的表面允许内侧股骨髁在高膝关节屈曲期间向后滑动并向后旋转。 符合边界可以具有大致三角形的形状,其顶点在前面延伸,并且相对较宽的基部向后延伸,其中顶点包括第一部分,并且基部包括第二部分。 相对较宽的基部部分有利地允许在高膝盖屈曲期间用于向后指向的关节接触的附加区域。

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