Patent ID: 7229443
Filing Date: 2007-06-12
Classification: A61B,F16B

Abstract:
1. A medical implant for use in the human body, comprising: a fixing element to be fastened to a substructure, said fixing element having at least one bore; at least one screw which can be passed through said at least one bore of said fixing element, and which can be screwed into said substructure, said screw having a shaft and a head; and at least one bushing arranged in said at least bore, through which said screw can be passed for screwing said screw into said substructure, said bushing being able to swivel in several spacial directions when seated in said bore, said bushing further comprising a seat for at least partially receiving at least a partial surface of said head of said screw, wherein an inner surface of said bore and an outer surface of said bushing are formed to be about spherically curved, such that a region of largest diameter of said inner surface and said outer surface is situated between an upper edge and a lower edge of said bore, and an upper portion of the bore has a diameter less than the region of largest diameter wherein said bushing is loss-proof pressed in said bore, and wherein said head of said screw and said seat of said bushing form a substantially form-locking threadless connection.