METHOD OF TEXTURING PROSTHETIC IMPLANTS

A method of treating an articular surface of a metal orthopaedic 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 orthopaedic implant after the blasting step. The blasting step roughens the s...

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Bibliographische Detailangaben
Hauptverfasser:	LANGHORN, Jason B, FERNANDES, Gary R
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL BANDAGES, DRESSINGS OR ABSORBENT PADS DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS DRESSING OR CONDITIONING OF ABRADING SURFACES FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION GRINDING HUMAN NECESSITIES HYGIENE MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING MEDICAL OR VETERINARY SCIENCE ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PERFORMING OPERATIONS POLISHING PROSTHESES TRANSPORTING TREATMENT OR PROTECTION OF EYES OR EARS
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Beschreibung
Zusammenfassung:	A method of treating an articular surface of a metal orthopaedic 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 orthopaedic implant after the blasting step. The blasting step roughens the surface to create a surface skew R sk / S sk defined by peaks and valleys. The second polishing step reduces the surface skew to a negative skew R sk / S sk and produces an average roughness R a / S a that 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.