Adjustable hip joint endoprosthesis
Patent 5336268 Issued on August 9, 1994. Estimated Expiration Date: 
December 15, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 15, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3067740 Hip prosthesis Hinge prosthetic joint with ball head Attachment mechanism for modular surgical products Modular hip stem prosthesis apparatus and method Modular hip joint prosthesis with adjustable anteversion Hip joint femoral component endoprosthesis with a lateral load-transferring support surface Patent #: 5211666 InventorAssigneeApplicationNo. 991347 filed on 12/15/1992US Classes:623/22.4Total femoral bone (i.e., including joint head and femoral stem)ExaminersPrimary: Isabella, David J.Attorney, Agent or FirmForeign Patent References
International ClassA61F 002/34Foreign Application Priority Data1991-12-17 DEAbstractAn adjustable hip joint endoprosthesis has an adjustable prosthesis head, which is connected with a stem that can be fixed in the femur. To absorb overloads, which would result in damage to the prosthesis part implanted into the femur and therefore in another implantation, a limiting element is provided. This limiting element is arranged in the prosthesis head and absorbs the overload by deformation, fracture or, in the case of a frictionally engaged connection, by sliding. After the occurrence of an overload, the limiting element must be replaced or re-adjusted. | |
