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    • 11. 发明授权
    • Threaded bone tunnel dilator
    • 螺纹骨隧道扩张器
    • US06540752B1
    • 2003-04-01
    • US09432477
    • 1999-11-01
    • Greg HickenGreta Jo HaysT. Wade Fallin
    • Greg HickenGreta Jo HaysT. Wade Fallin
    • A61B1760
    • A61B17/885A61B17/1604A61B17/1615
    • A cannulated threaded bone tunnel dilator that accurately advances through bone and dilates a bone tunnel in a gentle, controlled manner, including a distal tapered, threaded tip and a body mounted on the distal end of a shaft. The proximal end of the shaft includes a drive attachment for rotating the dilator so as to threadingly advance the dilator. In use, a guidewire is driven into bone, and then the surgeon advances the dilator along the guidewire until the tip of the dilator engages the bone. The surgeon then rotates the dilator clockwise so as to threadingly advance the dilator through the bone until the dilator reaches a desired depth. After reaching the desired depth, the surgeon removes the dilator by rotating the dilator counterclockwise and retracting the dilator from the then-compacted bone tunnel. The peaks and troughs of the dilator's thread compact the bone so as to create the dilated bone tunnel. However, the peaks and troughs do not extend beyond a smooth cylindrical body, thus, following dilation, the resultant bone tunnel is smooth and compacted.
    • 一种插管螺纹骨隧道扩张器,其准确地前进穿过骨骼,并且以温和,受控的方式扩张骨隧道,包括远端锥形螺纹尖端和安装在轴的远端上的主体。 轴的近端包括用于旋转扩张器的驱动附件,以便螺旋地推进扩张器。 在使用中,导丝被驱动进入骨骼,然后外科医生沿着导丝线推进扩张器,直到扩张器的尖端接合骨骼。 外科医生然后顺时针旋转扩张器,以便将扩张器螺纹推进穿过骨骼直到扩张器达到所需的深度。 达到所需的深度后,外科医生通过逆时针旋转扩张器并将扩张器从当时压实的骨隧道收回来移除扩张器。 扩张器的螺纹的峰和谷压缩骨骼,以产生扩张的骨隧道。 然而,峰和槽不延伸超过平滑的圆柱体,因此,在膨胀之后,所得到的骨隧道是光滑和压实的。