Patent ID: 9193033
Filing Date: 2015-11-24
Classification: A61F,B24C

Abstract:
1. A method for improving the bond between a molded PEEK joint component and bone cement, comprising: masking areas of the PEEK joint component that are subjected to high bending stress; thereafter roughening a surface of the molded PEEK joint component by air-blasting abrasive water-soluble particles against the PEEK component at a pressure between 105 and 110 PSI, and at a temperature less than the glass transition temperature of the PEEK until an average surface roughness of between 4 and 6 micrometers is attained; removing any residual abrasive water-soluble particles by submerging the PEEK component in water at a temperature of between 60 and 70 degrees Celsius for 2 to 3 minutes; and allowing the PEEK component to air dry; wherein 90 percent of the abrasive particles are less than 510 μm particles in size; and wherein the abrasive particles are nonmetal, water-soluble, and noncorrosive.