Thomas A. Alheidt,Christine Herrmann,Bryan D. Milz
申请号：
US13792810
公开号：
US20140257488A1
申请日:
2013.03.11
申请国别(地区):
US
年份:
2014
代理人:
摘要：
A spinal fixation device that includes a first engagement member. The first engagement member includes a first body and at least one extension. The first body includes a first aperture for receipt of a fastener. The at least one extension extends outwardly from the first body. Also included in the device, a second engagement member including a second body and a threaded extension that extends from the second body. The second body includes a second aperture for receipt of a fastener. Further, an expansion ring including a first end and a second end is included. The first end includes a threaded surface in threaded communication with the threaded extension. The second end is in rotatable communication with the at least one extension of the first engagement member. Where a torque is applied to the expansion ring, the second engagement member moves with respect to the first engagement member.
