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    • 2. 发明授权
    • One-piece biocompatible absorbable rivet and pin for use in surgical procedures
    • 一体式生物相容性可吸收铆钉和针脚用于外科手术
    • US06846313B1
    • 2005-01-25
    • US09667729
    • 2000-09-22
    • Laurel L. RogersMariann SayerDavid W. OverakerShawn T. HuxelKevin CooperDennis D. JamiolkowskiJoseph R. Thomas
    • Laurel L. RogersMariann SayerDavid W. OverakerShawn T. HuxelKevin CooperDennis D. JamiolkowskiJoseph R. Thomas
    • A61B17/58A61B17/68A61B17/56
    • A61B17/68
    • A bioabsorbable rivet and pin fastener is formed as an elongated unit that may be used for anchoring, or for attachment of a fixation plate. The rivet has a head mechanically connected to two or more legs that extend generally distally from the head and may flex outwardly from a central rivet axis. The pin is integral with the rivet and oriented along the central axis by a connection such as a web or a plurality of braces, forming an integral, aligned, one-piece assembly that may, for example, be molded as a single piece. The connection breaks under force as the pin is driven into the rivet, so that the pin contacts internal surfaces of the legs and pushes the legs outward into frictional engagement with the surrounding bone. The one-piece assembly may be formed in a gated mold having a central pin with a relief passage that defines the braces between upper and lower portions of the rivet. The braces so formed at the weld line readily part from the mold, and are easily sheared when the pin is advanced during installation of the rivet.
    • 生物可吸收的铆钉和销紧固件形成为可用于锚定或用于附接固定板的细长单元。 铆钉具有机械连接到两个或更多个腿的头部,该两个或多个腿部从头部大致向远侧延伸并且可以从中心铆钉轴线向外弯曲。 该销与铆钉成一体并且通过诸如幅材或多个支架的连接件沿着中心轴线定向,形成整体的,对齐的整体式组件,其可以例如被模制成单件。 当销被驱动到铆钉中时,连接断裂,使得销接触腿的内表面并向外推动腿与周围的骨摩擦接合。 一体式组件可以形成在具有中心销的门控模具中,该中心销具有在铆钉的上部和下部之间限定支架的释放通道。 在焊接线处形成的支架容易地与模具成一部分,并且在铆钉安装期间当销前进时容易剪切。