Bone boring drill for e.g. dental implantology, has step with diameter larger than that of drill, mandrel with bore for allowing passage of cooling liquid, and lateral blade for cutting bone that is received in adjacent cavity

摘要

The drill (100) has a step (116), a mandrel (114) at an upper end, a blade at an end (111) for boring, and a lateral blade (112) for cutting a bone that is received in an adjacent cavity (113). The cavity is deep and presents a semi-circular area, and the mandrel presents a bore (115) for allowing passage of a cooling liquid. The step presents diameter larger than the diameter of the drill.