CANINE ACETABULAR CUP
    79.
    发明申请

    公开(公告)号:WO2005117761A2

    公开(公告)日:2005-12-15

    申请号:PCT/US2005/018429

    申请日:2005-05-25

    Abstract: A plurality of canine acetabular cups designed to fit within different sized spherical reamed bone cavities to produce controlled interference without use of cements, screws or nails. Each of the canine acetabular cups, regardless of size, mates with a common femoral head, providing interchangeability. The controlled interference is obtained through use of a multiple curvature Ti-Al-V shell having a porous coating. The interference starts from zero at 50 degrees from the apex of the shell and extends to full interference value at 90 degrees from the apex. The Ti-Al-V shell carries a UHMW polyethylene insert, which is locked by interference, a non-circular post mated with an elongated opening and a circumferential locking groove mated with an interior projection. Initial stability is provided immediately after surgery due to the interference arrangement; long term stability is afforded by bone ingrowth.

    Abstract translation: 多个犬髋臼杯设计成适合不同尺寸的球形扩孔骨腔,以产生受控的干扰,而不使用水泥,螺钉或指甲。 每个犬髋臼杯,无论尺寸如何,都与普通股骨头配合,提供互换性。 通过使用具有多孔涂层的多曲率Ti-Al-V壳体获得受控的干涉。 干扰起始于距离壳体顶点50度的零点,并从顶点延伸到90度的全干扰值。 Ti-Al-V壳携带UHMW聚乙烯插入物,其通过干涉而被锁定,非圆形的柱与配合有内部突出部的细长开口和周向锁定槽配合。 由于干扰布置,手术后立即提供初始稳定性; 长期稳定性由骨向内生长提供。

Patent Agency Ranking