CPC A61B 17/7032 (2013.01) [A61B 17/7037 (2013.01); A61B 17/86 (2013.01); A61B 17/8625 (2013.01); A61B 17/863 (2013.01)] | 18 Claims |
1. A fastener configured for spinal applications comprising: a head having a channel adapted to receive a spinal rod; and a shaft extending from the head to a distal tip and having a thread, at least a portion of the thread being serrated, wherein the serrated portion of the thread includes serrations having respective widths measured perpendicular to a longitudinal axis of the shaft, successive widths decreasing in magnitude along a portion of a length of the thread toward the distal tip, wherein each serration includes a peak defined by a linear edge at an abutment between surfaces connecting the peak with adjacent troughs.
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