Boachie-Adjei, Oheneba,Carbone, John,Jones, Scott,McClintock, Larry,Strauss, R. Kevin
申请号：
AU2011291476
公开号：
AU2011291476A1
申请日:
2011.08.22
申请国别(地区):
AU
年份:
2013
代理人:
摘要：
A polyaxial pedicle screw includes a housing, a bone screw member, and an anvil. The bone screw member includes a head and a threaded shaft extending from the head. The head is selectively securable within the housing. The anvil is positionable within the housing adjacent to the head of the bone screw member when the anvil and the head of the bone screw member are positioned within the housing. The anvil may define one or more grooves in an outer surface of the anvil. The groove defines a flap that is flexibly attached to the anvil to enable the anvil to flex an amount sufficient to maintain the head of the bone screw in constant contact with the anvil when the bone screw member is moved relative to the anvil.
