Patent ID: 7837470
Filing Date: 2010-11-23
Classification: A61C

Abstract:
1. A movable mandible articulator apparatus for reproducing movements of a mandibular cast and a maxillary cast, said apparatus comprising: a base assembly having a main skeletal framework, said base assembly having a base member with a pair of vertical columns at respective left and right posterior ends thereof, said pair of vertical columns supporting a condylar hinge assembly therebetween, said pair of vertical columns having a first condylar guide and a second condylar guide respectively attached thereto, said base assembly having a maxillary incisal table at an anterior portion of said base member; a middle mandibular member having a U-shaped frame terminating interiorly in a pair of horizontal condylar shafts, said U-shaped frame having a pair of auditary pins extending exteriorly at respective open ends of said U-shaped frame, said pair of condylar shafts having respective condylar balls at medial ends thereof, said condylar balls being attached to said pair of condylar shafts respectively by a pair of condylar ball screws, said middle mandibular member having a horizontal platform on said U-shaped frame, said horizontal platform holding a mounting plate at a center thereof, said horizontal platform having an incision on an anterior extension thereof, said middle mandibular member having an arc-shaped mandibular incisal pin with an end held by a lock screw in said incision, said arc-shaped mandibular member having another end held within a holder, said holder housing a vertical portion of said incisal pin, said holder having a lock screw secured to said vertical portion of said incisal pin; an upper maxillary assembly having an upper maxillary member with a maxillary mounting plate at an underside thereof, said underside of said upper maxillary member having a semicircular plate for an orbital pointer secured thereto by a locknut, said upper maxillary assembly having a maxillary incisal pin with an angular top portion and a rectangular middle portion and a pointed tip at a terminal end thereof, said angular top portion passing through said incision and secured thereto by a lock screw; and a pair of condylar box assemblies each being a mirror image of the other, each of said pair of condylar box assemblies being a rectangular box which houses said condylar balls, each of said pair of condylar boxes having a top plate and a central locking screw and side shift locknuts and condylar box lock screws thereon, the condylar box having a condylar hinge plate on a medial side thereof, said condylar hinge plate having a slot receiving said condylar hinge therein, said pair of condylar boxes being on the respective condylar hinges, said condylar hinge plate extending angularly by up to 300° to vertical in a coronal plane so as to allow said side shift guide plates to rotate up to 300° in the coronal plane.