Product and methods for interlocking reverse hip and revision prosthesis
    7.
    发明授权
    Product and methods for interlocking reverse hip and revision prosthesis 有权
    用于互锁髋关节和修复假体的产品和方法

    公开(公告)号:US08540779B2

    公开(公告)日:2013-09-24

    申请号:US13024381

    申请日:2011-02-10

    Inventor: Zafer Termanini

    Abstract: A reverse hip prosthesis comprising an acetabular cup for implanting in an acetabular socket. The acetabular cup is secured to the acetabular socket of the pelvis using fasteners. The acetabular cup has a stem extending from the center of a concave portion thereof and an acetabular ball is attached to the stem, preferably by means of a Morse taper. A femoral implant is provided with a femoral cup attached to the proximal end thereof. The femoral cup has a stem which can be constructed in a modular fashion with several stem lengths in order to accommodate the various sizing requirements of different patients. After implantation of the acetabular cup and ball and the femoral cup, the members are assembled together so that the femoral cup can articulate on the acetabular ball. The prosthesis of the invention has a wide range of motion and substantially improved tribology. As the femoral cup is articulated, the edge of the femoral cup moves into a space located between the acetabular cup and the acetabular ball and thereby becomes restrained, thus reducing the likelihood of dislocation during extreme ranges of motion.

    Abstract translation: 一种髋关节假体,包括用于植入髋臼插管的髋臼杯。 髋臼杯使用紧固件固定在骨盆的髋臼插座上。 髋臼杯具有从其凹部的中心延伸的杆,并且髋臼球优选地通过莫氏锥度附接到杆上。 股骨植入物具有连接到其近端的股骨杯。 股骨杯具有可以以多个杆长度的模块化方式构造的杆,以适应不同患者的各种施胶要求。 在植入髋臼杯和球和股骨杯之后,将构件组装在一起,使得股骨杯可以在髋臼球上铰接。 本发明的假体具有宽范围的运动和显着改进的摩擦学。 当股骨杯铰接时,股骨杯的边缘移动到位于髋臼杯和髋臼球之间的空间中,从而变得受限制,从而减少在极限运动范围内错位的可能性。

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