Patent ID: 9517136
Filing Date: 2016-12-13
CPC Classification: A61F

Claim Text:
1. A method for manufacturing a silicon nitride ceramic hip prosthesis, the method comprising the steps of: performing a first isopressing process to form a base portion of a monolithic acetabular cup, wherein the base portion comprises a silicon nitride ceramic material at a first density; performing a second isopressing process to form coating particles comprising a silicon nitride ceramic material; combining the coating particles with the base portion in an isopress mold; performing a third isopressing process on the combined base portion and coating particles to form a first layer of silicon nitride ceramic made up of the coating particles on the base portion, wherein the first layer comprises a second density, and wherein the second density is less than the first density; and firing the combined base portion and coating particles to form a monolithic acetabular cup for a hip prosthesis.