Zimmer Gmbh

Zimmer Technology, Inc.

Jeffrey P Anderson

Clarence M Panchison

Oludele O Popoola

Brian H Thomas

Joel G Scrafton

David M Miller

Devendra Gorhe

Lawrence F Peek

Steve M Allen

Gregory M Hippensteel

Michael E Hawkins

H Ravindranath Shetty

Joseph R Vargas

Steven Seelman

Todd S Johnson

Casey Harmon

David Miller

Oludele Popoola

Gregory Hippensteel

Monoblock orthopedic and/or dental implants are disclosed. The monoblock implants include a ceramic articulating surface and an osseointegrative bone-contacting surface. Methods of making such implants also disclosed.

Ceramic monoblock implants with osseointegration fixation surfaces

An orthopedic implant including an articulation portion having a pyrolytic carbon bearing surface and a porous bone on- or in-growth structure, and methods of making the same.

Pyrolytic carbon implants with porous fixation component and methods of making the same

A prosthetic device having a generally fixed member formed from a low friction material such as ultra-high molecular weight polyethylene and an articulating titanium member, which includes an articular bearing surface. The articular surface is a zirconium oxide layer formed by applying a coating of zirconium onto the titanium member and heating this in an oxygen-containing environment. This causes the zirconium to oxidize and further causes the zirconium to migrate into the titanium member forming a titanium zirconium diffusion layer, which prevents delamination.

Titanium alloy with oxidized zirconium for a prosthetic implant

A process for forming a ceramic layer comprising a compound of a metal on a deposition surface of a workpiece comprises providing a reactive gas, selecting the amounts of a vapor of the metal and ions of the metal relative to each other, generating the metal vapor, and projecting an ion beam of the metal ions. The metal vapor, the metal ions, and the reactive gas form the ceramic layer with a desired structure. The process may include the step of controlling a deposition surface temperature. In one embodiment, the metal vapor comprises zirconium vapor and the ion beam comprises zirconium ions. The relative amounts of the zirconium vapor and the zirconium ions are selected to form a zirconia ceramic layer on the deposition surface. The zirconia may have multiple crystal phases that are formed according to a predetermined ratio.

Process for forming a ceramic layer

A prosthetic implant having a thermally treated ceramic coating and a method of producing a coated prosthetic implant. The ceramic coating is deposited onto the prosthetic implant such as by a plasma spray coating process. The prosthetic implant is thermally treated in a low oxygen environment to increase the hardness and wear-resistance of the ceramic coating for improved articulation of the prosthetic implant.

Thermally treated ceramic coating for implants

A method for bonding a porous tantalum structure to a substrate is provided. The method comprises providing a substrate comprising cobalt or a cobalt-chromium alloy; an interlayer consisting essentially of at least one of hafnium, manganese, niobium, palladium, zirconium, titanium, or alloys or combinations thereof; and a porous tantalum structure. Heat and pressure are applied to the substrate, the interlayer, and the porous tantalum structure to achieve solid-state diffusion between the substrate and the interlayer and between the interlayer and the porous tantalum structure.

Method for bonding a tantalum structure to a cobalt-alloy substrate

A method for producing a zirconia-layered orthopedic implant component includes depositing zirconium onto the orthopedic implant component, thereby forming a zirconium-layered component, and converting at least a portion of the zirconium into a substantially monoclinic zirconia surface layer unaccompanied by a substantial underlying &#x3b1;-phase. A method for producing a zirconia-layered orthopedic implant component includes depositing zirconium onto the orthopedic implant component by ion bombardment and deposition in a vacuum to form a zirconium-layered component including an intermix zone at least 1000 &#x212b; thick and a zirconium layer about 3-5 &#x3bc;m thick, and heat treating the zirconium-layered component at a temperature of about 500-600&#xb0; C. in an atmosphere containing oxygen.

Method for producing a zirconia-layered orthopedic implant component

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Warsaw, IN, United States of America

Jeffrey P Anderson