Patent ID: 8940028
Filing Date: 2015-01-27
Classification: A61B

Abstract:
1. A polyaxial bone fixation system, the system comprising: (a) at least one fastener, the fastener being at least partially threaded and having a head portion and a shaft portion; and (b) 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 opening is adapted to receive the fastener, the opening having an inner surface with a plurality of fins integrally connected to, and protruding from, the inner surface, the plurality of fins having bases that intersect the inner surface, the intersection between the bases and the inner surface defining a single plane, wherein upon insertion of the fastener into the opening, the plurality of fins can bend and engage within the threads to hold the fastener in place at a desired insertion angle such that the fastener may be inserted and retained at any one of a plurality of angles relative to the opening.