Prosthetic wrist unit

Claim 1

IN A PROSTHETIC WRIST UNIT, A TUBULAR BODY ADAPTED FOR MOLDING IN A PROSTHETIC ARM, SAID BODY COMPRISING A COLLAR FOR PLACEMENT EXTERIOR OF THE PROSTHETIC ARM AND A PORTION ADAPTED TO BE MOLDED INTO SAID PROSTHETIC ARM, SAID BODY HAVING AN AXIAL BORE, A TUBULAR FRICTION INSERT POSITIONED IN SAID AXIAL BORE, SAID TUBULAR INSERT HAVING A THREADED INTERIOR BORE, SAID INSERT HAVING A PAIR OF SLOTS CUT THROUGH THE WALL THEREOF; SAID INSERT BEING ADAPTED TO RECEIVE THE THREADED EXTENSION OF A PROSTHETIC HOOK IN SAID THREADED BORE THEREOF, SAID SLOTS DEFINING A PART OF THE WALL STRUCTURE OF SAID TUBULAR INSERT THAT IS SLIGHTLY MOVABLE WITH RESPECT TO THE OTHER PART OF THE WALL STRUCTURE THEREOF, AND A SCREW THREADED INTO SAID COLLAR OF SAID BODY, SAID SCREW BEING ACCESSIBLE FROM THE EXTERIOR OF THE PROSTHETIC ARM FOR ENGAGING SAID PART OF SAID WALL STRUCTURE FOR CLAMPING SAID PART AGAINST THE THREADED EXTENSION OF THE PROSTHETIC HOOK AND PROVIDE FRICTION FOR HOLDING SAID HOOK AGAINST TURNING.