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US 9,427,269 B2Granted
Locking screws and plates
AssigneeGenossis LLC
InventorAmit Sinha
Life of this patent
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Abstract
A screw is configured to be inserted into an aperture of a plate. The screw comprises a head, a neck that extends distally from the head and having a diameter, a shoulder that extends distally from the neck and has a diameter, and a shaft that extends distally from the shoulder and has a thread, a major diameter and a minor diameter. The diameter of shoulder is larger than the diameter of the neck and larger than the minor diameter of the shaft.
Claims13
A locking screw configured to be inserted into an aperture of a plate, the screw comprising:
- a head;
- a neck extending distally from the head and having a diameter;
- a shoulder extending distally from the neck and having a diameter;
- and a shaft extending distally from the shoulder and having a thread, a major diameter and a minor diameter, wherein the screw is configured to lock relative to the plate in a longitudinal direction after the shoulder is inserted through the aperture of the plate while being rotatable relative to the plate, wherein the shoulder includes a thread and a minor diameter, wherein the major diameter of the shoulder is larger than the major diameter of the shaft and the minor diameter of the shoulder is larger than the diameter of the neck and is larger than the minor diameter of the shaft, wherein the diameter of the neck is greater than the minor diameter of the shaft;
- the shoulder includes less than three crests in longitudinal profile, wherein the shoulder includes a rounded bulge configured to snap through the aperture in the plate.
2 more elements
Dependencies are inferred from the claim text.