发明名称 |
SPINAL SURGERY INSTRUMENT SETS AND METHODS |
摘要 |
A minimally invasive system includes a bone screw (100), and a tissue retractor (200) having a partial pathway through it. The tissue retractor is removably couplable to the bone screw. An instrument (400) has a hollow cavity (406) and is removably couplable to the tissue retractor. A drive shaft (504) for a cap (700) of the bone screw has a diameter less than a diameter of the hollow cavity. A counter- torque handle (600) has an interlock end portion (604) by means of which it can be rotatably fixed to the instrument. The interlock end portion also includes an open-ended slot having a width greater than the drive shaft diameter such that the counter- torque handle is movable to and from the assembled configuration while the drive shaft is within the hollow cavity. A removal instrument (1200) has an interface (1204) for removing the retractor from the screw.
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申请公布号 |
CA2795665(A1) |
申请公布日期 |
2011.10.27 |
申请号 |
CA20102795665 |
申请日期 |
2010.04.23 |
申请人 |
SYNTHES USA, LLC |
发明人 |
PETERSON, JOE;SOLITARIO, RALPH |
分类号 |
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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