Patent ID: 11865011
Assignee: nan
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A tibial insert comprising:
a lateral articular surface configured to articulate with a lateral condyle of a femoral component and including an arcuate articular path extending in an anterior-posterior direction, wherein the arcuate articular path is defined by a plurality of points on the lateral articular surface and, when the tibial insert is viewed in a cross-sectional medial-lateral plane at each point, each point defines a distal-most point of the lateral articular surface in the corresponding cross-sectional medial-lateral plane, and wherein the lateral articular surface has a cross-sectional concave curvature orthogonal to the arcuate articular path, the cross-sectional concave curvature being uniform at each of the plurality of points; and
a medial articular surface configured to articulate with a medial condyle of the femoral component, wherein the medial articular surface is asymmetrically shaped relative to the lateral articular surface and has a coronal concave curvature that is non-uniform in the anterior-posterior direction, and wherein the medial articular surface includes a sagittal concave curvature, when viewed in a sagittal plane, that is defined by a plurality of curved sections and a medial dwell point that defines a distal-most point of the medial articular surface, wherein the medial dwell point is located on the sagittal concave curvature, and
wherein the plurality of curved sections includes a first curved section adjacent to the medial dwell point and extending posterior therefrom, a second curved section adjacent the medial dwell point and extending anterior therefrom, a third curved section adjacent to the second curved section and extending anterior therefrom, a fourth curved section adjacent to the third curved section and extending anterior therefrom, and a fifth curved section adjacent the fourth curved section and extending anterior therefrom, and
wherein a radius of curvature of the first curved section is greater than a radius of curvature of the second curved section, and wherein a radius of curvature of the third curved section is less that the radius of curvature of the second curved section, less than a radius of curvature of the fourth curved section, and less than a radius of the fifth radius of curvature.