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Multi-axis connection and methods for internal spinal stabilizers
专利权人:
Madhavan Pisharodi
发明人:
Madhavan Pisharodi
申请号:
US11827222
公开号:
US08317843B2
申请日:
2007.07.11
申请国别(地区):
US
年份:
2012
代理人:
摘要:
A multi-axis connection for transferring load from the vertebrae of a patient to a plate extending from one vertebra to another vertebra when affixed to the respective vertebrae by screws extending through holes in the plate at the level of the respective vertebrae, each screw being oriented at any of a plurality of angles relative to the plate. The threaded shank of each screw is screwed into the vertebral body and the head is positioned in the central portion of the hole, the hole being defined by an aperture, an opening through which the screw extends, and the central portion between aperture and opening. The diameter of the head is larger than the aperture of the hole in the plate and is provided with a screw thread that engages the smaller diameter aperture of the hole to pull the head into the central portion of the hole when the screw is rotated, the head of the screw being retained within the hole by the smaller diameter aperture and the opening of the hole.
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中国工程科技知识中心
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