Enhanced Off-Center Liner for Acetabular Cup with Textured Surface and Bio-Compatible Coating

An improved off-center liner for acetabular cups in hip joint replacement surgeries, featuring a textured surface for enhanced stability and a bio-compatible coating to reduce wear and tear on the acetabular cup.

The original patent disclosed an off-center liner for acetabular cups, addressing the need for improved alignment and stability in hip joint replacement surgeries. However, the original design had limitations, such as potential instability and wear on the acetabular cup. The new inventive concept builds upon the original design by introducing a textured surface on the concave bearing surface to enhance stability and a bio-compatible coating on the outer convex surface to reduce wear and tear.

The enhanced off-center liner features a proximal surface, an outer convex surface configured to at least partially extend into an acetabular cup, and a concave bearing surface recessed relative to the proximal surface. The concave bearing surface includes a textured surface to enhance stability of the hip joint, ensuring proper alignment and reducing the risk of dislocation. Additionally, the outer convex surface is coated with a bio-compatible material to reduce wear and tear on the acetabular cup, prolonging the lifespan of the implant. The liner can be implanted using an impactor aligned with visual indicators on the liner to ensure proper alignment.

The new inventive concept introduces two key innovations: the textured surface on the concave bearing surface and the bio-compatible coating on the outer convex surface. These features address the limitations of the original patent, providing enhanced stability and reduced wear and tear on the acetabular cup.

Alternative embodiments of the inventive concept could include different textures or patterns on the concave bearing surface, varying levels of bio-compatible coating, or alternative materials for the liner. Additionally, the visual indicators on the liner could be modified or replaced with alternative alignment systems.

The enhanced off-center liner has significant commercial potential in the orthopedic industry, particularly in hip joint replacement surgeries. The improved stability and reduced wear and tear on the acetabular cup could lead to increased adoption and market share for the inventive concept.