Cannulated screw and associated driver system

Details Cannulated screw and associated driver system Cannulated screw and associated driver system

B - Operations, Transporting

25

B

B25B 15/00 (2006.01) A61B 17/00 (2006.01) A61B 17/16 (2006.01) A61F 2/38 (2006.01) A61F 2/46 (2006.01) A61F 2/76 (2006.01) A61B 17/86 (2006.01) A61B 17/88 (2006.01)

Patent

CA 2414910

A driver for inserting cannulated screws has a tool portion, e.g., in the form of a hex wrench that slips into the cannula of the screw. A tapered threaded tip on the tool extends beyond the front tip of the screw. An abutment surface provided, e.g., by the tool holder acts as a limit to rearward motion of the screw when it is being screwed into a substrate such as bone. The threaded tip of the tool cuts the bone to allow the threads of the cannulated screw to follow into the substrate permitting use of a softer material, such as a bioabsorbable material for the screw. 13

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