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公开(公告)号：US20160000485A1
公开(公告)日：2016-01-07
申请号：US14466581
申请日：2014-08-22
CPC分类号： A61B17/8047 , A61B17/7059 , A61B17/80 , A61B17/8033 , A61B17/8042 , A61B17/8052 , A61B17/8057 , A61B17/808 , A61B17/84 , A61B17/86 , A61B17/8695 , F16B41/002
摘要： A bone anchor locking device for receiving a bone anchor having a shank and an enlarged head, the device has a bone anchor, a dome and a conical split washer. The receiving portion has a base extending radially outward and inwardly to a wall. The dome has a center aperture sized to pass a bone anchor. The split washer has an inner conical surface sloped to slide and expand against at least a portion of the base on insertion of a bone anchor to allow a maximum diameter of a head of a bone anchor to pass and thereafter the split washer retracts overlying the maximum diameter of the head to prevent a bone anchor from backing out.
摘要翻译： 一种用于接收具有柄和扩大头部的骨锚的骨锚固定装置，所述装置具有骨锚，穹顶和锥形分裂垫圈。 接收部分具有径向向外延伸到壁的底部。 圆顶有一个中心孔，大小可通过骨锚。 分开的垫圈具有内锥形表面，该内锥形表面在骨锚固件插入时倾斜至基部的至少一部分而滑动和膨胀，以允许骨锚的头部的最大直径通过，此后，分离垫圈缩回到最大 头部的直径以防止骨锚脱离。
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公开(公告)号：US09782207B2
公开(公告)日：2017-10-10
申请号：US14466581
申请日：2014-08-22
CPC分类号： A61B17/8047 , A61B17/7059 , A61B17/80 , A61B17/8033 , A61B17/8042 , A61B17/8052 , A61B17/8057 , A61B17/808 , A61B17/84 , A61B17/86 , A61B17/8695 , F16B41/002
摘要： A bone anchor locking device for receiving a bone anchor having a shank and an enlarged head, the device has a bone anchor, a dome and a conical split washer. The receiving portion has a base extending radially outward and inwardly to a wall. The dome has a center aperture sized to pass a bone anchor. The split washer has an inner conical surface sloped to slide and expand against at least a portion of the base on insertion of a bone anchor to allow a maximum diameter of a head of a bone anchor to pass and thereafter the split washer retracts overlying the maximum diameter of the head to prevent a bone anchor from backing out.
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