发明名称 |
Locking Polyaxial Ball And Socket Fastener |
摘要 |
A polyaxial ball and socket joint that can be locked into a fixed position. The fastening system consists of the polyaxial ball and socket joint used in conjunction with a bone screw having threads on one end for use in anchoring to the spine and a spherical connector on the other end operating as a pivot point about which a connecting assembly moves in a polyaxial fashion. A substantially U-shaped connecting assembly has a lower receptacle that operates as a socket for housing an upper retainer ring and a lower split retaining ring. The socket is receptive to the spherical connector which is inserted through the lower split retainer ring causing a momentary displacement thereof which allows for the positioning of the spherical connector between the upper and lower retainer rings.
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申请公布号 |
US2010125302(A1) |
申请公布日期 |
2010.05.20 |
申请号 |
US20090355145 |
申请日期 |
2009.01.16 |
申请人 |
HAMMILL SR JOHN E;DOUBLER ROBERT L |
发明人 |
HAMMILL, SR. JOHN E.;DOUBLER ROBERT L. |
分类号 |
A61B17/04 |
主分类号 |
A61B17/04 |
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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