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    • 4. 发明申请
    • SLEEVE AUGMENT DEVICE FOR AN ARTICULATED JOINT
    • 用于连接接头的套筒装置
    • WO2017005512A1
    • 2017-01-12
    • PCT/EP2016/064720
    • 2016-06-24
    • WALDEMAR LINK GMBH & CO. KG
    • BAUER, EckhardLINK, Helmut D.
    • A61F2/30A61F2/38
    • A61F2/30734A61F2/30767A61F2/389A61F2002/30013A61F2002/30148A61F2002/30449A61F2002/30471A61F2002/30545A61F2002/30571A61F2002/30616A61F2002/30736A61F2002/30738A61F2002/30772A61F2002/30805A61F2002/30827A61F2002/3092
    • The invention relates to an augment device for a joint endoprosthesis, in particular a tibial augment for a knee joint endoprosthesis, comprising a sleeve (10) surrounding a channel (11) extending through the sleeve (10). The sleeve (10) is formed of porous material (2) for ingrowth of bony material, the sleeve (10) comprising an inner face (14) and an outer face (15). The sleeve (10) further comprises a wall (3) surrounding the channel (11), the wall (3) being made of solid material and forming a sandwich structure with the porous material (2), wherein the wall (3) forms a bulkhead between the inner face (14) and the outer face (15). Thereby, the bulkhead wall (3) will stop inflow of any cement across the sleeve (10) from its inner (14) to its outer face (15). The porous material (3) on the outer face (15) will be kept free from cement and its capability to promote bone ingrowth is reliably preserved. The augment devices are preferably provided as a set having different sizes and straight or stepped bottoms for improved versatility and maximum preservation of natural bone matter.
    • 本发明涉及一种用于关节内假体的增强装置,特别是用于膝关节内假体的胫骨增强件,包括围绕穿过套筒(10)的通道(11)的套筒(10)。 套筒(10)由用于骨材料向内生长的多孔材料(2)形成,套筒(10)包括内表面(14)和外表面(15)。 所述套筒(10)还包括围绕所述通道(11)的壁(3),所述壁(3)由固体材料制成并与所述多孔材料(2)形成夹层结构,其中所述壁(3)形成 在内表面(14)和外表面(15)之间的隔板。 因此,隔板壁(3)将阻止任何水泥通过套筒(10)从其内部(14)流入其外表面(15)。 外表面(15)上的多孔材料(3)将保持没有水泥,并且可靠地保持其促进骨向内生长的能力。 增强装置优选地作为具有不同尺寸和直的或阶梯式底部的组提供,以改善天然骨骼的多功能性和最大程度的保存。