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Spinal Fusion Apparatus
专利权人:
Paul E. Kraemer
发明人:
Paul E. Kraemer
申请号:
US15502867
公开号:
US20170231781A1
申请日:
2015.08.12
申请国别(地区):
US
年份:
2017
代理人:
摘要:
An interbody spinal fusion cage for posterior interbody fusion procedures includes a superior member and an inferior member connected to each other via a joint. The joint allows the interbody spinal fusion cage to achieve lordosis even if implanted non-orthogonal to the sagittal plane. For example, the joint can be a hinge oriented non-normal to a longitudinal axis of the interbody spinal fusion cage, a polyaxial ball joint, and/or a universal joint. Complementary locking mechanisms, such as locking teeth or a ratchet-and-pawl arrangement, can be provided near the posterior ends of the superior and inferior members in order to prohibit the posterior ends of the superior and inferior members from separating from each other in situ. Bone holes can be provided in the superior and inferior members.
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