Abstract: An artificial bone replacement device includes opposite end connectors interconnected to each other by a flexible unit consisting of an outer plastic tube and an inner plastic tube. The flexible telescoped tubes provide a flexible joint permitting angular movement of the connectors relative to each other. The connector are constructed for connection to a bone structure of a cadaver or to a bone replacement element in a cadaver such as a tubular member. A shoulder replacement device includes a first connector having a projecting screw member for threading into the collar bone. The opposite connector includes a tubular member connected to the tubular plastic tubes and having an opposite outer end tubular connector for interconnection to a bone or an artificial replacement member. The tubes are secured to the connectors by a cross screw threaded through the respective connectors and tubes. A similar screw is provided to connect the outer tubular connector to the bone or a bone replacement element.

Abstract: A bone replacement structure for cadavers which includes telescoping tubes which are joined to each other with a stepped coupling. The coupling includes a first member with a series of spaced openings or holes and a second member having at least one end opening larger than the diameter of the spaced openings or holes. The members are joined by a plastic covered wire which is inserted with a press fit through the small openings to firmly and fixedly interconnect the extended members in position. The outer ends of the bone replacement tubes have a hangscrew unit which is separately secured to the tube end. Each hangscrew unit includes a short cup-shaped cap which telescopes over the end of the elongated tubular member. Prior to attachment of the cap, a hangscrew is clamped to the face of the cap by an internal nut and an external nut on the threaded rod to firmly fix the hangscrew to the member with the self-tapping screw projecting therefrom.