Trochlea implant for a femoro-patellar prosthesis
AssigneeSmith & Nephew Richards France
InventorsJacques Hummer, Michel Dive, Michel Lauren.cedilla.on, Jacques Clauze
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Abstract
A trochlea implant for a femoro-patellar prosthesis, the implant being L-shaped, comprising a trochlea branch and an inter-condyle branch, the posterior face of the implant including a rectangular longitudinal rib designed to be engaged in a groove of corresponding shape machined in the anterior face of the trochlea to improve the stability of the prosthesis.
Claims7
A trochlea implant for a femoro-patellar prosthesis, the implant being substantially L-shaped and comprising an upper trochlea branch and a lower intercondyle branch, said upper and lower branches being at an obtuse angle to each other in a sagittal plane, the implant having a curved anterior face for receiving a patellar element and a posterior face for applying against and fixing to a distal end of a femur, the anterior face of the implant having a convex shape in said sagittal plane and a concave shape with a circular cross-section in a transverse plane perpendicular to the sagittal plane, the posterior face of the implant having a convex cross-section in the form of a circular arch in a transverse plane perpendicular to the sagittal plane, the posterior face of the upper branch of the implant further comprising a projecting longitudinal rectilinear rib adapted to be engaged in a groove of corresponding shape machined in the trochlea.
Dependencies are inferred from the claim text.