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    • 3. 发明授权
    • Securing fasteners
    • 固定紧固件
    • US08771324B2
    • 2014-07-08
    • US13117379
    • 2011-05-27
    • Michael BlackMatthew HansellJon Suh
    • Michael BlackMatthew HansellJon Suh
    • A61B17/86
    • A61B17/8038A61B17/8047A61B17/8057A61B17/8605A61B17/8685
    • A fastener, for example a bone screw, is sized to pass into an aperture of an implant, for example a bone plate, the fastener having an anchor portion engageable with body tissue, and a head portion formed by an assembly of an insert and an anchor extension. The implant has an aperture with a reduced entry dimension. The insert and anchor extension cooperate to form a reduced dimension passable into the aperture, and an expanded dimension not passable out of the aperture. The size of the assembly is configurable by bending resilient tabs of the anchor extension or the implant, using ramped surfaces, or an expanding diameter of a threadable insert.
    • 紧固件,例如骨螺钉的尺寸设置成进入植入物的孔中,例如骨板,所述紧固件具有可与身体组织接合的锚定部分,以及由插入件和 锚扩展。 植入物具有具有减小的入口尺寸的孔。 插入物和锚固件延伸部配合以形成通过孔的减小的尺寸,并且扩张尺寸不能从孔中通过。 组件的尺寸可通过使用倾斜表面或可螺纹插入件的扩展直径弯曲锚定延伸部或植入物的弹性突片来配置。