<p>A reamer for preparing a spinal upper facet to facilitate insertion of combined screw/washer implant, preventing bone damage and facet weakening, and also allowing possibility to place grafting so as to maximize implant stabilization. The reamer has shallow outer cutting surfaces to cut a groove for spike insertion; deep inner cutting surfaces to cut a cortical-penetrating bore for insertion of the screw, and a flat therebetween to limit penetration of these cutting surfaces.</p>
申请公布号
WO2011056457(A1)
申请公布日期
2011.05.12
申请号
WO2010US53614
申请日期
2010.10.21
申请人
DEPUY SPINE, INC.;SPRATT, FRANK;DEFOSSEZ, HENRI;BETTS, DUNCAN, COLIN;HART, ROBERT
发明人
SPRATT, FRANK;DEFOSSEZ, HENRI;BETTS, DUNCAN, COLIN;HART, ROBERT