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    • 8. 发明授权
    • 보철고정장치
    • KR100396430B1
    • 2003-12-31
    • KR1019950036369
    • 1995-10-20
    • 바이오메디칼엔지니어링트러스트아이
    • 마이클제이.파퍼스프레드릭에프.보이첼
    • A61F2/38A61B17/58
    • A61F2/389A61F2002/30065A61F2002/3013A61F2002/3082A61F2002/30879A61F2002/30884A61F2002/4631A61F2210/0071A61F2230/001
    • A tibia fixturing device (10) comprises a metal tray (20) formed with annularly spaced recesses in its underside at a depth of at least about 1.5 mm and from which a stem depends for axial insertion into a tibia conical cavity. The stem (18) has a circular cylindrical portion proximal the tray (20) and a conical portion distal the tray. Fins (28) radially extend from the stem cylindrical portion and penetrate the tibia to provide some torsional resistance. Axially extending channels (36) are formed about the stem periphery which channels (36) have bottom surfaces parallel to the stem axis (32) to provide further torsional resistance. The channels (36) are arranged to not interlock with the cement in the axial direction to permit the cement to separate first from the device during axial removal of the device from the bone. The fins (28) have inclined edges (30) distal the tray (20) and inclined radial outer edges to align and center the stem (18) to the bone cavity edge. Cement in the tray recesses bonds the tray to a tibia resected surface to provide major torsional resistance of the tray (20) about the cavity longitudinal axis (19').
    • 胫骨固定装置(10)包括金属盘(20),金属盘(20)在其下侧以至少约1.5mm的深度形成有环形间隔开的凹部,并且杆从该金属盘用于轴向插入胫骨锥形腔中。 杆(18)具有靠近托盘(20)的圆柱形部分和远离托盘的圆锥形部分。 翅片(28)从杆柱形部分径向延伸并穿过胫骨以提供一定的扭转阻力。 轴向延伸的通道(36)围绕杆周边形成,该通道(36)具有平行于杆轴线(32)的底部表面以提供进一步的扭转阻力。 通道(36)布置成在轴向方向上不与水泥互锁以允许水泥在装置从骨头轴向移除期间首先从装置分离。 翅片(28)具有远离托盘(20)的倾斜边缘(30)和倾斜的径向外边缘,以将杆(18)与骨腔边缘对齐并居中。 托盘凹槽中的水泥将托盘粘合到胫骨切除表面,以提供托盘(20)围绕腔纵向轴线(19')的主要扭转阻力。 <图像>