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Helical flange with start structure and splay allowance to close and lock open bone anchor receivers
Helical flange with start structure and splay allowance to close and lock open bone anchor receivers
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机译:具有起始结构和张开余量的螺旋法兰,用于关闭和锁定打开的骨锚接收器
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摘要
Open implant closure structures include a helically wound guide and advancement flange form having splay control surfaces. Multi-start closures and closures with inner set screws have splay control contours for interlocking with cooperating flange forms of bone anchor receivers. Flange form heights, thicknesses and other geometry, such as splay control ramp angle may be varied.
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