发明名称 |
SPINAL FIXATION DEVICE |
摘要 |
A spinal fixation assembly has a bone screw with head having a continuously curved spherical outer surface. The curved surface nests in a split annular bushing having a plurality of segments curving around the screw head. The bushing has an outward extending flange that fits into a recess in a socket in a fixation plate. The plate has at least three legs which extend from ends of a cross-member to form one of an H shaped, X shaped or A shaped configuration. Each socket is curved to rotatably receive rotation of the bushing. The socket recess is larger than the bushing flange to allow the bushing to tilt a predetermined amount depending on a thickness of the outward extending flange.
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申请公布号 |
CA2728787(A1) |
申请公布日期 |
2009.12.30 |
申请号 |
CA20092728787 |
申请日期 |
2009.06.23 |
申请人 |
WESTMARK MEDICAL, LLC |
发明人 |
ANDERSON, MARK E.;MUNOZ, PAUL A. |
分类号 |
A61B17/80;A61B17/70;A61B17/86;A61B17/88;A61F2/44 |
主分类号 |
A61B17/80 |
代理机构 |
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代理人 |
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主权项 |
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