Non-constrained total joint system
Patent 5314486 Issued on May 24, 1994. Estimated Expiration Date: 
January 19, 2013. 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.
January 19, 2013. 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 3889300 Ankle prosthesis Great (large) toe prosthesis and method of implanting Joint endoprosthesis Toe implant Device at artificial joints Patent #: 5061288 InventorsAssigneeApplicationNo. 007370 filed on 01/19/1993US Classes:623/21.19Toe boneExaminersPrimary: Isabella, David J.Assistant: Brittingham, Debra S. Attorney, Agent or FirmInternational ClassesA61F 002/42A61F 002/30 AbstractA non-constrained total joint prosthetic replacement device for metatarso-phalangeal joint. A first component comprises a convex-bearing surface and a rearwardly projecting stem configured to be received in the resected metatarsal bony shaft, and a second component includes a concave-bearing surface and a stem configured to be received within the resected phalangeal bony shaft. A non-bearing intermediate land offsets the convex-bearing surface of the first component from the stem, allowing a full range of anatomical motion notwithstanding the presence of bony overgrowth. | |
