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NEEDLE FOR DIRECTIONAL CONTROL OF THE INJECTION OF BONE CEMENT INTO A VERTEBRAL COMPRESSION FRACTURE
NEEDLE FOR DIRECTIONAL CONTROL OF THE INJECTION OF BONE CEMENT INTO A VERTEBRAL COMPRESSION FRACTURE
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机译：方向控制将骨水泥注入椎体压缩性骨折的方向
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摘要
A needle for use in a surgical procedure includes an outer cannula including a shaft portion having a side wall and an end wall. A first aperture extends through the side wall of the outer cannula, and a second aperture extending through the end of the outer cannula. The needle also includes an inner cannula that is disposed within the outer cannula and includes a shaft portion having a bore extending therethrough. The inner cannula is selectively movable relative to the outer cannula between a first orientation and a second orientation. In the first orientation, communication is provided between the bore of the inner cannula and a first external region that is located adjacent to the second end of the outer cannula. In the second orientation, communication is provided between the bore of the inner cannula and a second external region that is located adjacent to the second end of the outer cannula.
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