发明名称 |
Vertebral anchoring device and its blocking device on a polyaxial screw |
摘要 |
The vertebral anchoring device according to the present invention comprises a connector (2), a connecting rod (10) and a polyaxial anchoring screw (3) comprising a spherical head (15) and a screw-threaded body (16) whose external diameter d at a summit of the screw threads (17) is greater than the external diameter a of the spherical head (15), each connector (2) being constituted by a connecting element (4) comprising vertical branches (5, 6) delimiting an opening (7) of U shape, and by a locking clip (8) provided with a pressure screw (9) for blocking in the bottom of the U the connecting rod (10), said connecting element (4) being pierced at its middle with a vertical bore (11) permitting receiving opposite the opening (7) a blocking device (19) formed by a ring (20) and a screw-threaded socket (21) for the emplacement and positioning of the connector (2) on the spherical head (15) of the anchoring screw (3).
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申请公布号 |
US2004097933(A1) |
申请公布日期 |
2004.05.20 |
申请号 |
US20030697034 |
申请日期 |
2003.10.31 |
申请人 |
LOURDEL RODOLPHE;LEROY JEAN-YVES;POMMIER ARNAUD;ROKEGEM PASCAL |
发明人 |
LOURDEL RODOLPHE;LEROY JEAN-YVES;POMMIER ARNAUD;ROKEGEM PASCAL |
分类号 |
A61B17/70;(IPC1-7):A61B17/70 |
主分类号 |
A61B17/70 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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