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US 2026/0306141 A1Published application
Modular screw assembly
AssigneeZavation Medical Products, LLC
InventorsJohn Franklin Cummins, John Lawrence Walker
Life of this patent
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Abstract
A modular screw assembly for use in stabilizing a spinal column. The assembly has a fastener which couples to a screw head of a bone anchor, a screw head coupler, a retaining ring, and a friction ring. The fastener houses the screw head coupler, the retaining ring, and the friction ring. Translation of the fastener by the screw head results in the retaining ring elastically deforming and then snapping around the screw head.
Claims1
A modular screw assembly for use in stabilizing a spinal column, comprising:
- a fastener which couples to a screw head of a bone anchor;
- a screw head coupler;
- a retaining ring;
- and
- a friction ring,
- wherein
- the fastener houses the screw head coupler, the retaining ring, and the friction ring,
- translation of the fastener past the screw head results in the retaining ring engaging around the screw head.
5 more elements
Dependencies are inferred from the claim text.