Importance

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Abstract

A medical appliance adapted to bridge and stabilize spaced apart bone segments having outside, ledge and inside surfaces. The appliance has an elongate bottom plate, an elongate top plate, and a locking member. The bottom plate is attachable to the ledge surface of the bone and has a bottom base plate, a plurality of screw barrels extending from the bottom base plate in a first direction for receiving barrel screws, and a plurality of openings in the base plate for rotatably retaining the screw barrels. The elongate top plate has a top plate base, a plurality of slots aligned to allow the barrel screws to engage the screw barrels of the bottom plate. The locking member is dispoaed in a countersink to engage the bone screws such that axial and rotational movement of the bone screws may be restricted. The screw barrels are equipped with an angle first end and a riveted second end to restrain screw movement but allow the screws to engage the barrels at various angles. A locking member includes a locking ring having a plurality of tapered rachet teeth on an interior surface.

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First Claim