Mobile bearing unicompartmental knee

Details Mobile bearing unicompartmental knee Mobile bearing unicompartmental knee

2005-09-20

2005-09-20

Snow, Bruce E (Department: 3738)

Prosthesis (i.e., artificial body members), parts thereof, or ai

Implantable prosthesis

Bone

C623S020300

Reexamination Certificate

active

06946001

ABSTRACT:
An orthopedic knee component for implanting within a single compartment of a human knee includes, in a first embodiment a tibial tray having a superior surface having a plurality of tabs disposed along an exterior edge thereof, a bearing component having a superior surface adapted to articularly engage a femoral knee prosthesis and a circumferential groove disposed therearound with which the tabs of the tibial tray cooperatively engage such that the bearing component is movable relative to the tibial tray. In a second embodiment, an orthopedic knee component for implanting within a single compartment of a human knee includes: a tibial tray in supporting engagement with a bearing component, wherein the bearing component includes a superior surface adapted to articularly engage a femoral knee prosthesis and a pair of slots disposed along the superior surface of the bearing component, the femoral component having a pair of rails extending from the articulating surface thereof such that the rails can slidingly engage the slots, and such that the bearing component is movable relative to the tibial tray.

REFERENCES:
patent: 4340978 (1982-07-01), Buechel et al.
patent: 4711639 (1987-12-01), Grundei
patent: 5282868 (1994-02-01), Bahler
patent: 5871541 (1999-02-01), Gerber
patent: 0 519 872 (1992-12-01), None
patent: 2 778 332 (1999-11-01), None
patent: WO 95/14444 (1995-06-01), None

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