Patent ID: 7959490
Filing Date: 2011-06-14
Classification: A61F,B24B,H01F,Y10T

Abstract:
1. A method of preparing a component of a prosthetic implant for use in orthopaedic surgery, comprising: forming a magnetorheological polishing fluid including nanoparticles coated in a two-stage microwave plasma synthesis process; providing the magnetorheological polishing fluid to a polishing zone; controlling the consistency of the magnetorheological polishing fluid in the polishing zone; bringing the component into contact with the magnetorheological polishing fluid in the polishing zone; causing the component and the magnetorheological polishing fluid in the polishing zone to move with respect to each other; monitoring the rate of material removal from the component; determining the direction and velocity of movement of the polishing zone relative to the component; and determining the number of cycles of polishing to be performed on the component.