1. Optimized curved dome can better match the inner joint surface;
2. Higher uniformity of acetabulum liner’s wall thickness is helpful to the internal stress distribution of ceramic materials;
3. The curved dome allows the liner to be centered automatically to make the installation smoother.
Arc corner:
1. Adds a turning edge chamfer;
2. The round edge avoids the collision between the ceramic liner and metal prosthesis;
3. Prevents edge wear when the ball head is slightly detached from the acetabular cup.
Fixing cone for connection:
1. Long cone design with a better guiding performance;
2. Helps to achieve the correct liner angle;
3. Avoids "ceramic fracture" on the edge of ceramic liner.
Joint surface:
1. Improved gap tolerance of head liner makes it easier to obtain a satisfactory liquid film lubrication effect;
2. Unified joint surface form to ensure all sizes of liners have the same center of rotation.