Knee-joint-endoprothese
    4.
    发明授权
    Knee-joint-endoprothese 失效
    膝关节内窥镜

    公开(公告)号:US4178641A

    公开(公告)日:1979-12-18

    申请号:US856226

    申请日:1977-12-01

    CPC classification number: A61F2/38 A61F2002/3895

    Abstract: This invention relates to knee-joint endoprostheses, and provide an endoprosthetic member embodying condylar replacement surface means to simulate the natural slideway for the knee cap, said slideway defining a space for the cruciate ligaments of the natural joint, and also having a curved boundary to be brought into alignment with the transverse edge of the natural joint which forms the upper boundary of the space for the cruciate ligaments relative to the intercondylar eminence. The prosthesis for the inner tibial plateau is made concave and the prosthesis for the outer tibial plateau is made saddle-shaped to match the natural tibial plateaus, all the prosthetic parts being made from a wear-resistant plastics material such as polyethylene for example.More generally, the invention provide an endoprosthetic condylar surface member comprising a shell of wear-resistant plastics material having a cupped shape connected to a slideway projecting laterally therefrom or alternatively the shell may comprise two cup-shaped parts interconnected by a slideway bridging piece.

    Abstract translation: 本发明涉及膝关节内假体,并且提供一种体内髁更换表面装置来模拟膝盖帽的天然滑道的假体内构件,所述滑道限定了天然关节十字韧带的空间,并且还具有弯曲的边界 与天然关节的横向边缘对齐,其形成十字韧带相对于髁间隆起的空间的上边界。 用于内胫骨平台的假体被制成凹面,并且外胫骨平台的假体被制成鞍形以匹配天然胫骨平台,所有的假体部件由例如聚乙烯的耐磨塑料制成。 更一般来说,本发明提供了一种假体内髁表面构件,其包括耐磨塑料的外壳,其具有连接到从其侧向突出的滑道的杯形形状,或者壳可包括通过滑道桥接件相互连接的两个杯形部分。

    Shankless knee joint endoprosthesis
    5.
    发明授权
    Shankless knee joint endoprosthesis 失效
    无柄膝关节内假体

    公开(公告)号:US06245110B1

    公开(公告)日:2001-06-12

    申请号:US09460606

    申请日:1999-12-14

    CPC classification number: A61F2/38 A61F2/3868

    Abstract: A knee joint endoprosthesis has an element for the femur (2) which is substantially U-shaped when seen from a medial to a lateral angle, one horizontal, two diagonal and two vertical support surfaces facing the femur for accommodation on the resected femur bone, which is fitted with two runners (24, 25), and an element for the tibia (1) having two slide tracks (4, 5) on which the runners for the femur element can roll, and optionally slide, and a horizontal support surface (6) facing the tibia for accommodation on the resected tibia. The femur element (20) and tibia element (1) are configured without any shanks. At least both diagonal support surfaces of the femur element (2) and the horizontal support surface (6) of the tibia element (20) are fitted with an open-mesh, three-dimensional spatial network structure (7) which is an integral component of the base structures (8, 8′) of the femur element (20) and the tibia element (1). Two latches (21, 22) angled toward the femur and provided with at least one respective through hole (23) are medially and laterally formed on the femur element (20), whereby a bone screw (26) can be inserted therein; and two latches (11,12) angled toward the tibia and provided with at least one respective through hole (18) are formed on the tibia element, whereby a bone screw (14) can be inserted therein.

    Abstract translation: 膝关节内假体具有用于股骨(2)的元件,当从中间到侧向角度观察时,其基本上为U形,面向股骨的一个水平,两个对角线和两个垂直支撑表面,用于容纳在被切除的股骨上, 其配备有两个流道(24,25),并且用于胫骨(1)的元件具有两个滑动轨道(4,5),所述股骨元件的流道可以在其上滚动并且可选地滑动,并且水平支撑表面 (6)面向胫骨以在切除的胫骨上容纳。 股骨元件(20)和胫骨元件(1)构造成没有任何柄。 股骨元件(2)和胫骨元件(20)的水平支撑表面(6)的至少两个对角支撑表面都配有一个开放网状的三维空间网络结构(7),它是一个组成部分 的股骨元件(20)和胫骨元件(1)的基部结构(8,8')。 在股骨元件(20)上中间和横向地形成有朝向股骨倾斜并且设置有至少一个相应的通孔(23)的两个闩锁(21,22),由此能够将骨螺钉(26)插入其中; 并且在所述胫骨元件上形成有朝向所述胫骨成角度且设置有至少一个相应通孔(18)的两个闩锁(11,12),由此能够将骨螺钉(14)插入其中。

    Knee joint endoprosthesis
    6.
    发明授权
    Knee joint endoprosthesis 失效
    膝关节内假体

    公开(公告)号:US06793680B2

    公开(公告)日:2004-09-21

    申请号:US10463267

    申请日:2003-06-17

    CPC classification number: A61F2/3868 A61F2/3886

    Abstract: A knee joint endoprosthesis is provided having a femoral part (1) that can be linked with a shank part to be anchored in the femur, the femoral part being provided with two runners (2, 3) interlinked ventrally via a bridge. A tibia plateau part (5) interacts with a shank part to be anchored in the tibia and is provided with two slide guides (6) in which the runners (2, 3) of the femoral part (1) can roll off and slide. With increasing bend of the knee joint and upon exceeding a predetermined bending angle, the femoral part is allowed to perform an increasing rotation relative to the tibia plateau part (5).

    Abstract translation: 提供了一种膝关节内置假体,其具有股骨部分(1),所述股骨部分可以与要锚固在股骨中的柄部连接,所述股骨部分设置有经由桥连接在内侧的两个流道(2,3)。 胫骨平台部分(5)与胫骨部分相互作用以锚定在胫骨中并且设置有两个滑动引导件(6),其中股骨部分(1)的流道(2,3)可以滚动并滑动。 随着膝关节的弯曲增加并且超过预定的弯曲角度,允许股骨部分相对于胫骨平台部分(5)执行增加的旋转。

    Knee-joint endoprostheses
    8.
    发明授权
    Knee-joint endoprostheses 失效
    膝关节内假体

    公开(公告)号:US4064568A

    公开(公告)日:1977-12-27

    申请号:US739819

    申请日:1976-11-08

    CPC classification number: A61F2/385

    Abstract: A knee-joint endoprosthesis comprising an upper and lower shank for attachment to the femur and tibia and provided with two pads which are yoked together across a central ridge. In such an endoprosthesis, the invention provides the improvement which consists in that a saddle-shaped ridge is provided with a fixed guiding cross-shaft which forms a free spigot on either side of said ridge and which lies off and to the rear of the center axis of said lower shank when the joint is in the extended position, in that two curved, hollowed-out bearing faces, and said supporting pads, which conform to said bearing faces in the extended position, diminish in width from front to rear as a result of said ridge becoming wider in the rearwards direction, in that said spigots engage with clearance in guide grooves in said supporting pads which extend approximately parallel to the lower faces of said pads and which open upwards at their rear ends, and in that the extension of the two sections of the joint is restricted by an abutment.

    Abstract translation: 一种膝关节内假体,包括用于附接到股骨和胫骨的上部和下部柄部,并且设置有跨越中心脊线一起被钩在一起的两个垫。 在这种假体中,本发明提供了一种改进,其特征在于,鞍形脊设置有固定的导向横向轴,所述固定导向横向轴在所述脊的任一侧上形成自由凸起,并且位于中心的后部 当接头处于延伸位置时,所述下部柄部的轴线在两个弯曲的中空支承面中,并且与延伸位置中的所述支承面一致的所述支撑垫片从前到后的宽度减小为 所述脊的结果在向后方向上变宽,因为所述插口与所述支撑垫中的引导槽中的间隙接合,所述引导槽大致平行于所述垫的下表面延伸,并且在其后端向上敞开,并且延伸 关节的两个部分受到支座的限制。

    Valve arrangement for power-assisted steering systems
    9.
    发明授权
    Valve arrangement for power-assisted steering systems 失效
    动力辅助转向系统的阀门装置

    公开(公告)号:US06345682B1

    公开(公告)日:2002-02-12

    申请号:US09600042

    申请日:2000-09-06

    CPC classification number: B62D5/061

    Abstract: The invention relates to a hydraulically assisted steering system for a motor vehicle. Because there is associated with the hydraulic system an electromechanical valve 12 which, in the open state, hydraulically indirectly or directly connects the working chambers 3 , 4, it is possible to dispense with conventional mechanical pressure limiting valves, secondary suction valves and limit stop valves.

    Abstract translation: 本发明涉及一种用于机动车辆的液压辅助转向系统。 因为与液压系统相关联的机电阀12在打开状态下液压间接地或直接连接工作室3,4,所以可以省去传统的机械限压阀,二次吸入阀和限位截止阀 。

    Implant for replacing a rear patella part
    10.
    发明授权
    Implant for replacing a rear patella part 失效
    用于替换后部髌骨部分的植入物

    公开(公告)号:US5522901A

    公开(公告)日:1996-06-04

    申请号:US78703

    申请日:1993-06-16

    CPC classification number: A61F2/3877 A61F2/30907 A61F2002/3092

    Abstract: An implant to replace a rear patella part is provided, which comprises a prosthesis part imitating the patella part and a metal attachment part fixed in the prosthesis part, with which the implant can be attached in the natural patella part. In order to produce a gentle and secure attachment for the implant, the attachment part has a convexly curved external contour, which at least in sections has an open-cell and open-pore surface structure.

    Abstract translation: 提供了用于替换后部髌骨部分的植入物,其包括模仿髌骨部分的假体部分和固定在假体部分中的金属附接部分,植入物可以通过该植入物附接在天然髌骨部分中。 为了产生用于植入物的温和且牢固的附件,附接部分具有凸形弯曲的外部轮廓,其至少在截面中具有开放孔和开孔表面结构。

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