Tibial prosthesis
January 31, 2015. 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 2934065 3064645 Knee joint prosthesis Prosthetic device adapted to promote bone/tissue ingrowth Prosthesis for tibial component of knee joint Modular knee prosthesis Modular tibial prosthesis Modulator knee prosthesis system Modular hip stem prosthesis apparatus and method Longitudinally grooved shaft prosthesis InventorsAssigneeApplicationNo. 381118 filed on 01/31/1995US Classes:623/20.32Tibial boneExaminersPrimary: Isabella, David J.Attorney, Agent or FirmForeign Patent References
International ClassA61F 002/38AbstractA tibial prosthesis includes a tibial tray and a post extending therefrom for receiving one or more modular stems of differing sizes. The stem provides a closed socket that registers with the post. A wedge lock fit tightens the stem to the post upon assembly. The stem has a cylindrical section and a tapering section. Fins extend longitudinally from the proximal end to the distal end of the stem, tracking both the cylindrical and tapering portion thereof so that each of the fins tracks a uniform diameter section of the stem for a majority of its length. The tapering section of the stem is equal to about one third of its over all length, and defines the distal end of the stem. The fins are longitudinally placed about the stem exterior surface, and are generally parallel. Between the fins are U-shaped channels that are similarly longitudinally extending and generally parallel. The stem provides a central longitudinal axis. The fins and channels are parallel to the central longitudinal axis of the stem.Other References
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