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:
Nov. 18, 2014
Filed:
May. 25, 2011
James Timothy Shawcross, Didcot, GB;
Andrew Derek Turner, Didcot, GB;
David Richard Lewis, Didcot, GB;
James Timothy Shawcross, Didcot, GB;
Andrew Derek Turner, Didcot, GB;
David Richard Lewis, Didcot, GB;
Accentus Medical Limited, , GB;
Abstract
Metal implants () are treated by anodising the surface () in contact with an electrolyte, and then briefly subjecting the anodised surface to a reversed voltage. During a first anodising stage the surfaces are passivated, while during a subsequent anodising stage pits are formed in the passivating surface layer. Rough portions () of the surface, in particular portions produced by plasma spraying of metal powder, are sealed with a watertight cover () during at least part of the anodising process. After rinsing, biocidal metal ions are subsequently absorbed into the surface of the implant. This provides the implant with biocidal properties. The use of the cover () enables a more uniform geometric distribution of biocidal metal ions to be achieved.