Back to results
US 2018/0008329 A1Published application
Orthopedic screws
AssigneeZavation Medical Products, LLC
InventorsJohn Franklin Cummins, John Lawrence Walker
Life of this patent
Estimating the term…
Abstract
Self-drilling, self-tapping and self-advancing orthopedic screws are provided. An orthopedic screw includes a relief cut at the tip of the screw that is timed to the distal-most thread at the end of the screw tip to create a wide and sharp cutting edge for the screw.
Claims11
An orthopedic screw comprising:
- a main shaft extending along a central axis from a proximal end to a distal end, the main shaft comprising a plurality of threads between the proximal end and the distal end;
- and
- a tip extending along the central axis from the distal end of the main shaft, the tip having a minor diameter and a major diameter, the tip comprising:
- a tip shaft defining the minor diameter of the tip;
- a distal-most thread have a leading edge and defining the major diameter of the tip, the distal-most thread ending the tip;
- and
- a relief cut having a leading end and a trailing end, the trailing end extending in a plane different than the leading edge of the distal-most thread, the leading end of the relief cut starting at the leading edge of the distal-most thread.
4 more elements
Dependencies are inferred from the claim text.