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Implantable orthopaedic device composed of a support structure having at least one orifice associated with a nut, for the passage of a locking screw
专利权人:
Guillaume Derouet
发明人:
Guillaume Derouet
申请号:
US12445022
公开号:
US08114140B2
申请日:
2008.04.17
申请国别(地区):
US
年份:
2012
代理人:
摘要:
The device includes a support structure (2) having an orifice (3) that delimits a seat (5) for receiving a nut (6) intended to cooperate with a locking screw (4). The seat (5) comprises an upper part (5a) and a lower part (5b), both shaped as truncated spheres and concentric to each other. Furthermore, the nut (6) has a spherical contour (11), and the screw head (15) has a lower part (15b), also with a spherical contour, and an upper part (15a) provided with a thread (17). The upper (15a) and lower (15b) parts of the screw head (15) cooperate respectively with the complementary thread (14) of the nut (6) and with the lower part (5b) of the receiving seat (5) such that, in the final phase of screwing the spherical contour (11) of the nut (6) bears against the upper spherical part (5a) of the seat (5), and of the lower part of the screw head (15b) against the lower spherical part (5b) of the seat (5).
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中国工程科技知识中心
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