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US 6,306,172 B1Granted
Modular tibial insert for prosthesis system
AssigneeJohnson & Johnson Professional, Inc.
InventorsMichael J. O'Neil, Joseph Kennedy, James Boyko, George Cipolletti
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Abstract
A modular joint prosthesis includes a tibial component formed of a tibial bearing insert and a tibial plateau. The tibial bearing insert is a modular component formed of a tibial insert body and a modular element. The tibial insert body and the modular elements are provided in a variety of geometries and sizes to yield various types of tibial insert bodies. The same tibial insert body may be used, for example, to form both rotatable and non-rotatable tibial bearing inserts.
Claims23
A modular joint prosthesis system, comprising:
- a tibial insert body having a top, articulating surface and a bottom, mating surface;
- a tibial plateau having a bottom, bone engaging surface and a top surface matable with the bottom surface of the tibial insert body;
- a cavity formed in the mating surface of the tibial insert body;
- and
- a plurality of modular elements, at least one of which forms a rotatable prothesis system and at least another of which forms a non-rotable prosthesis system, the modular elements being matable within the cavity of the tibial insert body to yield insert having a different functionality.
2 more elements
Dependencies are inferred from the claim text.