Patent ID: 9649135
Date: 2017-05-16
CPC Classifications: A61B

Claim:
1. An orthopedic device for stabilizing bones comprising: a bone screw having a first end and a second end, said first end constructed and arranged as a shank portion for penetrating securement to a bone, said second end constructed and arranged as a head portion; a connector for securing a rod to an anchored bone screw, said connector consisting of a clamp and a compression ring wherein said clamp is positioned within said compression ring, and securable to said head portion of said anchored bone screw, said clamp having an elongated body with an exterior wall, said exterior wall including at least one annular bulge to provide a change in the external diameter of said exterior wall and a second bulge distal to said at least one annular bulge wherein the second annular bulge forms a receptacle section and is of a size to accommodate the head of the bone screw anchor whereby said head portion of said bone screw head is inserted therethrough, a rod slot extending across said exterior wall constructed and arranged to accept said rod, and a compression ring surrounding said exterior wall, said compression ring linearly traversable along said exterior walls between a first position and a second position by application of a force consisting of a linear force along a longitudinal axis of said clamp, whereby traversal of said compression ring from said first position to said second position causes said compression ring to cooperate with said at least one annular bulge to apply concurrent compressive forces to said clamp to simultaneously immobilize movement between said clamp and said rod and said clamp and said anchored bone screw.