Medullary drill head
AssigneeSynthes USA, LLC
InventorsChristof Muller, Peter Christen
Life of this patent
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Abstract
A drill head for intramedullary drilling has a front part, a middle part and a rear part and is shaped as a hollow body of revolution. The front and rear parts have spiral slots formed with cutting edges. The rear part has an attachment for coupling to a drilling shaft.
Claims17
A drill head for drilling out the medulla of a tubular bone comprising a hollow body of revolution having a front part, a middle part and a rear part, each of the front and rear parts having spiral slots with cutting edges, the middle part providing an area free from slots separating the slots of the front and rear parts from one another and the rear part having coupling means for attachment to a drill.
Dependencies are inferred from the claim text.