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    SELF-RETAINING DENTAL SCREW
    1.
    发明申请
    SELF-RETAINING DENTAL SCREW 审中-公开
    自锁牙科螺丝

    公开(公告)号：US20160317254A1

    公开(公告)日：2016-11-03

    申请号：US15104270

    申请日：2014-12-22

    申请人： STRAUMANN HOLDING AG

    发明人： Stéphane COURVOISIER ,  Silvio BLUMENTHAL

    IPC分类号： A61C8/00

    CPC分类号： A61C8/0068 ,  A61C8/0048 ,  A61C8/0062 ,  A61C13/225

    摘要： A self-retaining screw assembly comprising a dental secondary component and a screw. The secondary component comprises a through passage having an apical and a coronal open end, and a screw seat located between said apical and coronal ends. The screw comprises a screw rod and a screw head, the screw head being dimensioned to abut against the screw seat and the screw rod being dimensioned to pass unhindered through the through passage such that the apical end of the rod can protrude from the apical end of the through passage. The through passage further comprises, coronal of the screw seat, a first section and, directly coronal of the first section a second section having a narrower diameter than the first section, such that the second section forms a restriction in the through passage. The screw head comprises a radially outwardly extending retaining element.

    摘要翻译： 一种自固定螺钉组件，包括牙齿辅助部件和螺钉。 次级部件包括具有顶端和冠状开口端的通路，以及位于所述顶端和冠端之间的螺钉座。 螺杆包括螺杆和螺钉头，螺钉头的尺寸被设计成抵靠螺钉座，并且螺杆的尺寸被设计成不受阻碍地穿过通孔，使得杆的顶端可以从顶端的顶端突出 通过通道。 贯通通道还包括螺钉座的冠部，第一部分和第一部分的直接冠状物，具有比第一部分更窄的直径的第二部分，使得第二部分在通道中形成限制。 螺钉头包括径向向外延伸的保持元件。