Patent ID: 11896270
Assignee: SMITH & NEPHEW, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A polyaxial bone fixation system, the system comprising:
at least one fastener, the fastener having a head portion and a shaft portion; and
a bone plate comprising a lower surface, an upper surface and at least one opening extending from the lower surface to the upper surface;
wherein:
the at least one opening is adapted and configured to receive the at least one fastener; and
the head portion of the at least one fastener includes threads, the at least one opening includes a plurality of non-circumferential fins integrally connected to, and protruding therefrom, the plurality of non-circumferential fins form a concave portion protruding from an inner surface of the at least one opening, the plurality of non-circumferential fins each include a base that meet at the inner surface in substantially the same plane, the plurality of non-circumferential fins being arranged and configured to move at least a portion of each fin independently toward the upper surface or toward the lower surface when the at least one fastener is inserted into the at least one opening to secure a position of the at least one fastener relative to the bone plate at any one of a plurality of angles.