Prosthetic joint device
    1.
    发明授权
    Prosthetic joint device 失效
    假体关节装置

    公开(公告)号:US4085466A

    公开(公告)日:1978-04-25

    申请号:US821905

    申请日:1977-08-04

    IPC分类号: A61F2/38 A61F1/24

    CPC分类号: A61F2/3868 A61F2002/3895

    摘要: A prosthetic joint device is provided with first and second components respectively providing convex and relatively flat articulatory bearing surfaces, and a third component is located between the former components and has two surfaces which are complementary to and engage the convex and flat surfaces. Preferably the two pairs of engaged surfaces are suitably respectively spherically shaped and planar. The device can move under natural muscular and ligamentous control, in a varying manner closely simulating that of a natural joint which maintains uniform load distribution. Initial development centered on the provision of a knee joint endoprosthesis, but the mechanics of the device are well suited to other joints, particularly of non-congruous form, and also to joints in exoprostheses.

    摘要翻译: 假肢关节装置设置有分别提供凸形和相对平坦的关节轴承表面的第一和第二部件,并且第三部件位于前部件之间并且具有与凸表面和平坦表面互补并接合的两个表面。 优选地,两对接合表面适当地分别是球形和平面的。 该装置可以在天然肌肉和韧带控制下移动,以不同的方式紧密地模拟保持均匀载荷分布的天然关节的方式。 初步发展以提供膝关节内假体为中心,但该装置的力学特性非常适合于其他关节,特别是非整体形状,也适用于假体内关节。

    Endoprosthetic knee joint device
    3.
    发明授权
    Endoprosthetic knee joint device 失效
    内假体膝关节装置

    公开(公告)号:US5871542A

    公开(公告)日:1999-02-16

    申请号:US777794

    申请日:1996-12-31

    IPC分类号: A61F2/38

    CPC分类号: A61F2/3868 A61F2002/3895

    摘要: The invention concerns endoprosthetic knee joint devices of the so called `meniscal knee`variety.A device is provided of the above type wherein the mutually engaging bearing surfaces of the tibial platform and the meniscal component have a part-cylindrical shaping to allow rotation therebetween about an antero-posterior axis, the superior bearing surface of the tibial platform preferably being convex.Movements of the natural joint can still be closely simulated and full congruency can be retained throughout the natural range of movement, but there is an additional degree of restraint at the tibio-meniscal interface. Unrestricted antero-posterior relative movement is allowed, as in the conventional meniscal knee, but the part-cylindrical interface shaping serves to reduce the risk of lateral or medial dislocation.

    摘要翻译: 本发明涉及所谓的“半月板膝盖”多变的内假肢膝关节装置。 提供上述类型的装置,其中胫骨平台和半月板部件的相互接合的支承表面具有部分圆柱形的形状以允许其围绕前后轴旋转,胫骨平台的上支承表面优选地是凸的 。 天然关节的运动仍然可以被密切模拟,并且在整个自然运动范围内可以保持完全一致,但在胫骨 - 半月板界面上还有一定程度的约束。 允许无限制的前后相对运动,如在常规半月板膝盖中,但部分圆柱形界面成形用于减少侧向或内侧错位的风险。

    Stylus assembly
    4.
    发明授权
    Stylus assembly 有权
    触笔组装

    公开(公告)号:US09226755B2

    公开(公告)日:2016-01-05

    申请号:US13389894

    申请日:2010-08-03

    IPC分类号: A61B17/15 A61B17/17

    摘要: A stylus assembly (10) adapted to align a surgical tool with a bone, the stylus assembly (10) comprising: a mounting element (12,18); a tool guide (50) adjustably mounted relative to the mounting element (12,18); a stylus (16) adjustably mounted relative to the mounting element (12,18) and having a curved portion for engagement with a predetermined part of the bone; and a lockable retaining member (14) for simultaneously locking the surgical tool guide (50) and the stylus (16) to the mounting element (12,18).

    摘要翻译: 一种适于将手术工具与骨对准的触针组件(10),所述触针组件(10)包括:安装元件(12,18); 相对于安装元件(12,18)可调节地安装的工具引导件(50); 相对于安装元件(12,18)可调节地安装的触针(16),并且具有用于与骨的预定部分接合的弯曲部分; 以及可锁定的保持构件(14),用于将外科手术工具导向件(50)和触针(16)同时锁定到安装元件(12,18)。

    Tibial component
    5.
    发明授权

    公开(公告)号:US07060101B2

    公开(公告)日:2006-06-13

    申请号:US10692016

    申请日:2003-10-24

    IPC分类号: A61F2/38

    CPC分类号: A61F2/3868 A61F2/389

    摘要: A tibial knee joint prosthesis for attachment to a suitably prepared tibial bone, providing bearing portions in the lateral and medial compartments. The lateral and medial bearing surfaces of the component are inclined at different angles in the anterior to posterior direction of the knee, so that when mounted to the tibia, the lateral bearing surface of the prosthesis is higher than the medial bearing surface to the posterior side of the knee. In this way the lateral ligament is tightened progressively more than the medial ligament as the knee moves from extension to flexion, resulting in increased stability in the lateral compartment.

    Prosthetic knee joint device
    7.
    发明授权
    Prosthetic knee joint device 失效
    假膝关节装置

    公开(公告)号:US5871545A

    公开(公告)日:1999-02-16

    申请号:US818791

    申请日:1997-03-14

    IPC分类号: A61F2/38

    CPC分类号: A61F2/3868

    摘要: The invention concerns prosthetic knee joint devices, in particular of the meniscal type having femoral, tibial and meniscal components co-operable to allow congruence of the interfacing articulation surfaces while allowing close simulation of the natural joint in flexion-extension. The device features meniscal and tibial components each of one-piece bicompartmental construction having a pair of mutually spaced portions respectively defining condylar articulation surfaces, such portions being joined by way of an intercondylar portion, and the tibial and meniscal intercondylar portions being interengageable by means of complementary elements of a rib-and-groove joint arranged substantially in the antero-posterior direction, both the rib and the groove having curved side faces to allow limited long axis rotation between the components, and the groove being open at at least one end. With appropriate dimensioning, the device allows movement of the meniscal component in the antero-posterior direction, limited movement in the medio-lateral direction and limited long-axis rotation. It also provides in a simple and effective manner a securement against tibio-meniscal dislocation.

    摘要翻译: 本发明涉及假肢膝关节装置,特别是具有股骨,胫骨和半月板部件的半月板类型,其可共同操作以允许接合关节表面的一致,同时允许在屈曲伸展中的天然关节的近似模拟。 该装置具有半月板和胫骨部件,每个部件具有一对相互间隔的部分,每个部分相互间隔开的部分分别限定髁关节表面,这些部分通过髁间部分连接,胫骨和半月板间髁部分可通过 基本上沿前后方向布置的肋 - 沟槽接头的互补元件,肋和凹槽都具有弯曲的侧面,以允许部件之间的有限的长轴旋转,并且凹槽在至少一端是敞开的。 通过适当的尺寸,该装置允许半月板部件在前后方向上移动,中内侧方向上的有限运动和有限的长轴旋转。 它还以简单有效的方式提供抵抗胫骨 - 半月板脱位的固定。