The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 11, 2018
Filed:
Sep. 28, 2016
Depuy Synthes Products, Inc., Raynham, MA (US);
Jason B. Langhorn, Warsaw, IN (US);
Gary R. Fernandes, Assonet, MA (US);
DEPUY SYNTHES PRODUCTS, INC., Raynham, MA (US);
Abstract
A method of treating an articular surface of a metal orthopedic implant includes polishing the surface, blasting the surface with a blast media after the first polishing step and polishing the blasted surface of the metal orthopedic implant after the blasting step. The blasting step roughens the surface to create a surface skew R/Sdefined by peaks and valleys. The second polishing step reduces the surface skew to a negative skew R/Sand produces an average roughness R/Sthat is acceptable. Lubrication at the interface of the treated articular surface and the corresponding bearing articular surface is improved, thereby improving wear resistance. Both polishing steps may be performed by drag finishing the surface through an abrasive media.