CPC A61B 17/7038 (2013.01) [A61B 17/7037 (2013.01)] | 20 Claims |
1. A pedicle screw assembly, comprising:
a bone screw having a head and a shank, the head defining at least one groove; and
a modular head assembly comprising:
a housing having a proximal end and a distal end, the housing defining a throughbore extending along a longitudinal axis of the housing and between the proximal and distal ends of the housing;
an anvil disposed within the throughbore such that the anvil is translatable along the axis and inhibited from rotating relative to the longitudinal axis; and
a spring at least partially circumscribing an outer surface of the anvil and entirely disposed within the throughbore.
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