Patent ID: 9028498
Filing Date: 2015-05-12
Classification: A61B

Abstract:
1. A bone fixation plate assembly comprising: (a) a proximal plate assembly comprising: a proximal plate having a proximal body with a first proximal bone screw hole passing therethrough and a first proximal arm projecting therefrom, the first proximal arm having an elongated expansion slot extending through a portion thereof and a threaded bore formed thereon so as to communicate with the expansion slot; and a first proximal set screw received within the threaded bore of the first proximal arm, the first proximal set screw having a top surface with a driver engaging feature formed thereon and an encircling perimeter edge; and (b) a distal plate assembly comprising: a distal plate having a distal body with a first distal bone screw hole passing therethrough and a first distal sleeve projecting therefrom, the first distal sleeve having an exterior surface and an interior surface that bounds a first distal socket, the interior surface of the first distal sleeve comprising a ceiling surface, an opposing floor surface, and interior side surfaces that extend therebetween, the first proximal arm being slidably received within the first distal socket, an access opening extending on the first distal sleeve from the exterior surface to the interior surface, the access opening being configured so that the driver engaging feature is accessible through the access opening while at least a portion of the perimeter edge of the first proximal set screw is covered by the first distal sleeve so as to preclude the first proximal set screw from passing out through the access opening.