Patent ID: 8974501
Filing Date: 2015-03-10
Classification: A61B,Y10T

Abstract:
1. A distal loading receiver for a polyaxial bone screw, comprising: a body member having a circumferential wall defining a bore disposed longitudinally through the body member; a skirt depending from a distal end of the body member, wherein the skirt defines one or more distally opening slots and an abluminal surface of the skirt includes one or more transverse ribs proximate to a distal end of the skirt; and a retaining ring including a luminal surface having one or more transverse recesses proximate to a distal end of the luminal surface and one or more walls extending inwardly from the luminal surface; wherein distal open ends of the slots receive the walls such that the walls fit within the slots and the recesses accommodate the ribs to attach the body member to the retaining ring when the distal end of the skirt is inserted into a proximal end of the retaining ring.