<p>The present invention generally provides a polyaxial fixation device having a shank with a spherical head formed on a proximal end thereof, and a receiver member having an axial passage formed therein that is adapted to polyaxially seat the spherical head of the shank. The polyaxial bone screw further includes an engagement member that is adapted to provide sufficient friction between the spherical head and the receiver member to enable the shank to be maintained in a desired angular orientation before locking the spherical head within the receiver member.</p>
申请公布号
EP2218414(A1)
申请公布日期
2010.08.18
申请号
EP20100163033
申请日期
2004.06.10
申请人
DEPUY SPINE SARL
发明人
KONIECZYNSKI, DAVID, D.;DOHERTY, THOMAS, V.;WHIPPLE, DALE;CASEY, NIALL;HALL, MARK