Chad J. Patterson,Jeffrey G. Roberts,Robert M. Fenci
申请号：
US11060965
公开号：
US08221478B2
申请日:
2005.02.18
申请国别(地区):
US
年份:
2012
代理人:
摘要：
A snap-off surgical screw configured for threading into a bone of a patient using a driver member, comprising a shaft extension joined to a screw portion via a frangible connection. The frangible connection comprises at least one defect formed through an outer surface of the frangible connection. The defect is configured to promote selective separation of the shaft extension from the screw portion at the defect. A proximal end of the screw portion is preferably provided with a recess, and the frangible connection is preferably positioned in the recess to thereby configure the shaft extension to snap-off from the screw portion below the proximal end of the screw portion.
