Articulated prosthetic knee and method for implanting same
    1.
    发明授权
    Articulated prosthetic knee and method for implanting same 失效
    铰接假肢膝盖及其植入方法

    公开(公告)号:US4358859A

    公开(公告)日:1982-11-16

    申请号:US81713

    申请日:1979-10-04

    CPC classification number: A61F2/3845

    Abstract: An articulated knee prosthesis in which a femoral implant has a condyle section and a femoral stem that is cemented into the femur. A tibial implant carries a tibial plateau section on which is mounted a stop plate for engaging the condyle section and arresting movement of the knee beyond its fully extended position. The tibial implant includes a tibial stem that is cemented into the tibia. A pivotal connection between the two implants is positioned posteriorly of the implant and at an elevation above a lowermost point of the condyle section (when the implants are fully extended). The pivot axis of the connection and the stems are positioned with respect to each other so that upon the implantation of the implant, the patient's tibia is moved in an anterior direction as compared to the normal anatomical position of the tibia relative to the femur. At least a portion of the hinged connection, which frequently includes the pivot axis, is located posteriorly of portions of the femur proximate the knee joint to maximize the arc through which the knee can be flexed.

    Abstract translation: 一种关节膝关节假体,其中股骨植入物具有骨髁部分和股骨柄,该股骨柄被胶合到股骨中。 胫骨植入物携带胫骨平台部分,其上安装有止动板用于接合髁部分并阻止膝盖移动到其完全伸出位置。 胫骨植入物包括胫骨柄,其被固定到胫骨中。 两个植入物之间的枢转连接位于植入物的后方并且位于髁部分的最低点之上(当植入物完全延伸时)的高度。 连接件和杆的枢转轴线相对于彼此定位,使得在植入物植入时,与胫骨相对于股骨的正常解剖位置相比,患者的胫骨在前方向上移动。 经常包括枢转轴线的铰链连接的至少一部分位于靠近膝盖关节的股骨部分的后方,以最大限度地使得膝盖能弯曲的电弧最大化。

    Endoprosthesis for a knee joint
    2.
    发明授权
    Endoprosthesis for a knee joint 失效
    膝关节内置假体

    公开(公告)号:US4268920A

    公开(公告)日:1981-05-26

    申请号:US946872

    申请日:1978-09-29

    CPC classification number: A61F2/385 A61F2002/30635

    Abstract: A knee joint endoprosthesis includes a femoral component, a tibial component and a slide bearing providing for relative pivotal movement between the components and formed of a femoral bearing half carried by the femoral component and a tibial bearing half carried by the tibial component. The bearing halves are arranged for being pressed to one another while free from being connected to one another. There is further provided an arrangement for cardanically guiding the bearing halves with respect to one another with degrees of freedom in horizontal and vertical directions.

    Abstract translation: 膝关节内假体包括股骨部件,胫骨部件和滑动轴承,其提供部件之间的相对枢转运动,并由股骨部件承载的股骨承载半部和由胫骨部件承载的胫骨支承半部形成。 轴承半部被布置成彼此压紧,同时彼此不连接。 还提供了一种用于在水平和垂直方向上以自由度相对于彼此主导地引导轴承半部的布置。

    Femoral pin for hip prosthesis
    3.
    发明授权
    Femoral pin for hip prosthesis 失效
    股骨针为髋关节假体

    公开(公告)号:US4266302A

    公开(公告)日:1981-05-12

    申请号:US81228

    申请日:1979-10-02

    Applicant: Alain Tornier

    Inventor: Alain Tornier

    Abstract: A femoral pin for a hip prosthesis, wherein the pin is in the form of a plurality of funicular elements, or strands, issuing from a hilt member. The strands have graduated lengths, are grouped according to their lengths and have their ends opposite the hilt member connected together. The longest strands form the outer contour of the pin member and the shorter strands are within this tapered contour.

    Abstract translation: 一种用于髋关节假体的股骨销,其中所述销为多个缆索元件或股线的形式,所述多个缆索元件或绞线从斜面构件发出。 绞线具有刻度长度,根据其长度分组,并且其端部与连接在一起的刀柄构件相对。 最长的线形成销构件的外轮廓,较短的股线在该锥形轮廓内。

    Prosthetic knee joint tibial implant
    4.
    发明授权
    Prosthetic knee joint tibial implant 失效
    假体膝关节胫骨植入物

    公开(公告)号:US4257129A

    公开(公告)日:1981-03-24

    申请号:US41084

    申请日:1979-05-21

    Applicant: Robert G. Volz

    Inventor: Robert G. Volz

    Abstract: A prosthetic implant for replacement of the proximal end of the tibia includes a metal anchor member which is cemented into the intramedullary canal of the tibia and a replaceable high density polyethylene articulation member which is pinned to the anchoring member. The anchoring member and the replaceable articulation member slidably fit together by movement in a lateral direction by means of a dovetail fitting and a raised tab portion is provided as a stop means in order to assure proper positioning of one member with respect to the other. Once the two members are properly aligned, a vertical pin is inserted therethrough and is secured in position by a two prong horizontal clip arrangement which inserts through the articulation member and clips about a reduced diameter portion of the vertical pin member. Notches are provided in both the anchoring member as well as the replaceable articulation member for clearance of ligaments and the outer peripheral edge of the anchoring member includes a depending sharp lip and a depending groove therebehind which facilitate cementing of the anchoring member in place by compacting acrylic bone cement into the prepared surface of the tibia.

    Abstract translation: 用于替换胫骨近端的假体植入物包括:金属锚定构件,其粘结到胫骨的髓内管中,以及可更换的高密度聚乙烯铰接构件,其被固定到锚定构件。 锚定构件和可更换的关节运动构件通过燕尾配件沿横向移动而可滑动地配合在一起,并且凸起的突出部分被设置为止动装置,以便确保一个构件相对于另一构件的适当定位。 一旦两个构件正确地对准,则垂直销插入其中并且通过插入通过关节运动构件并围绕垂直销构件的减小直径部分夹紧的两个插脚水平夹子装置固定在适当位置。 在锚定构件以及可替换的关节运动构件中设置槽口,用于使韧带间隙,并且锚定构件的外周边缘包括垂直的锐利唇缘和垂直的凹槽,这些凹槽有助于通过压实丙烯酸粘合固定构件就位 骨水泥进入胫骨的准备表面。

    M.C.P. Joint replacement
    5.
    发明授权
    M.C.P. Joint replacement 失效
    M.C.P. 关节置换

    公开(公告)号:US4242759A

    公开(公告)日:1981-01-06

    申请号:US19517

    申请日:1979-03-12

    Inventor: Robert C. White

    Abstract: There is provided a metacarpal-phalangeal joint replacement having two members, one for insertion into each of the respective bones in the joint. Each member defines a tail and a head, and the two heads are adapted to fit with each other in such a way that when the finger is extended, the joint and thus the finger have a limited degree of lateral freedom to swing from side to side, whereas when the finger is flexed, this lateral freedom is considerably restricted. This variation is brought about by making the face of one head generally protuberant, and the face of the other head generally recessed or channeled. The "match" in contour between the two faces thus varies during the pivoting of the one member with respect to the other, between a substantially complementary fit when the finger is flexed, to a "loose" or "wobble" fit when the finger is extended.

    Abstract translation: 提供了具有两个构件的掌骨 - 指骨关节置换物,一个用于插入到关节中的每个相应的骨中。 每个构件限定尾部和头部,并且两个头部适于彼此配合,使得当手指伸出时,接头和手指具有有限的横向自由度以从一侧到另一侧摆动 而当手指弯曲时,这种横向自由度受到很大的限制。 这种变化是通过使一个头部的表面大体隆起而形成的,而另一个头部的表面通常凹进或引导。 在两个面之间的轮廓中的“匹配”在一个构件相对于另一个构件的枢转期间在手指弯曲时在基本上互补的配合之间变化,当手指是“松动”或“摆动” 延长

    Patellar flange and femoral knee-joint prosthesis
    9.
    发明授权
    Patellar flange and femoral knee-joint prosthesis 失效
    髌骨法兰和股骨膝关节假体

    公开(公告)号:US4353135A

    公开(公告)日:1982-10-12

    申请号:US148291

    申请日:1980-05-09

    CPC classification number: A61F2/38 A61F2/3877

    Abstract: A patellar flange for a knee joint prosthesis comprising a curved base and a pair of condylar runners, one of said condylar runners being attached to each lateral side of the base and extending outwardly anteriorly therefrom diverging from each other and converging to the base superiorly and a femoral knee joint prosthesis containing the flange.

    Abstract translation: 一种用于膝关节假体的髌骨法兰,其包括弯曲的基部和一对髁突,其中一个所述髁滑动件附接到基部的每个侧面并且向前向前延伸,从而彼此分开并且向上倾斜并且一个 股骨膝关节假体含有法兰。

    New Jersey meniscal bearing knee replacement
    10.
    发明授权
    New Jersey meniscal bearing knee replacement 失效
    新泽西半月板轴承膝盖置换

    公开(公告)号:US4309778A

    公开(公告)日:1982-01-12

    申请号:US53694

    申请日:1979-07-02

    Abstract: A prosthesis for the surgical replacement of a dysfunctional knee joint. The prosthesis includes a tibial platform, one or two tibial bearing inserts, and a femoral component.In a unicompartmental embodiment of the invention, the tibial platform includes a spike for securing the tibial platform to the tibia. The tibial platform, in the unicompartmental embodiment, includes a track, which may be curved, and which is slidably engaged in dovetail fashion by a tibial bearing insert. The superior surface of the tibial bearing insert is concave spherical, designed to slidably engage the inferior surface of the femoral component. The inferior surface of the femoral component is generally convex spherical, with radius of curvature slightly smaller than the radius of curvature of the tibial bearing insert.In a bicompartmental or tricompartmental embodiment of the invention, the tibial platform includes two tracks, each of which may be curved, and each of which slidably engages in dovetail fashion a tibial bearing insert. The two tibial bearing inserts each engage, via their superior concave spherical surfaces, mating inferior convex surfaces of the femoral component. The two curved tracks are in general not concentric; rather, the center of each falls on a line normal to the plane of such curved track and passing through the center of curvature of the concave spherical surface of the tibial bearing insert of the other curved track.

    Abstract translation: 用于手术置换功能障碍性膝关节的假体。 假体包括胫骨平台,一个或两个胫骨支承插入物和股骨部件。 在本发明的单室实施例中,胫骨平台包括用于将胫骨平台固定到胫骨的钉。 在一部分实施例中的胫骨平台包括可以是弯曲的并且通过胫骨承载插入件以燕尾形式可滑动地接合的轨道。 胫骨支承插入件的上表面是凹形球形的,设计用于可滑动地接合股骨部件的下表面。 股骨部件的下表面通常为凸形球形,其曲率半径略小于胫骨支承插入件的曲率半径。 在本发明的双室或室内实施例中,胫骨平台包括两个轨道,每个轨道可以是弯曲的,并且每个轨道以燕尾形式可滑动地接合胫骨支承插入件。 两个胫骨支承插入件通过其上面的凹形球形表面接合股骨部件的配合的下凸形表面。 两个弯曲的轨道通常不是同心的; 相反,它们的中心落在与这种弯曲轨迹的平面垂直的线上,并穿过另一个弯曲轨道的胫骨承载插入物的凹球面的中心。

Patent Agency Ranking