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公开(公告)号:US08613746B2
公开(公告)日:2013-12-24
申请号:US12606676
申请日:2009-10-27
申请人: Frank Spratt , Henri Défossez , Duncan Colin Betts , Robert Hart
发明人: Frank Spratt , Henri Défossez , Duncan Colin Betts , Robert Hart
IPC分类号: A61B17/00
CPC分类号: A61B17/1671 , A61B17/1617 , A61B17/7064
摘要: 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.
摘要翻译: 用于制备脊椎上部小面以便于插入组合的螺钉/垫圈植入物的扩孔器,防止骨损伤和小面变弱,并且还允许放置移植的可能性,以最大化植入物的稳定性。 铰刀具有浅的外切割表面,用于切割用于钉插入的凹槽; 深的内部切割表面以切割用于插入螺钉的皮质穿透孔,并且在其间形成一个平面以限制这些切割表面的穿透。
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公开(公告)号:US20110098710A1
公开(公告)日:2011-04-28
申请号:US12606676
申请日:2009-10-27
申请人: Frank Spratt , Henri Défossez , Duncan Colin Betts , Robert Hart
发明人: Frank Spratt , Henri Défossez , Duncan Colin Betts , Robert Hart
IPC分类号: A61B17/16
CPC分类号: A61B17/1671 , A61B17/1617 , A61B17/7064
摘要: 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.
摘要翻译: 用于制备脊椎上部小面以便于插入组合的螺钉/垫圈植入物的扩孔器,防止骨损伤和小面变弱,并且还允许放置移植的可能性,以最大化植入物的稳定性。 铰刀具有浅的外切割表面,用于切割用于钉插入的凹槽; 深的内部切割表面以切割用于插入螺钉的皮质穿透孔,并且在其间形成一个平面以限制这些切割表面的穿透。
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