Joel G Scrafton

7833274, Nov 16, 2010

Jan 14, 2009

12/353692

Oludele O. Popoola - Granger IN, US
Joel G. Scrafton - Leesburg IN, US

Zimmer, Inc. - Warsaw IN

A61F 2/38

623 2035, 623 2018, 623 2014

A femoral prosthesis may be formed as a femoral component incorporating a base material and an articulating material. In one exemplary embodiment, the base material is a metal and the articulating material is a polymer. Specifically, the base material provides strength and rigidity to the femoral component, while the articulating material contacts a tibial prosthesis or natural tibia during joint articulation. In one exemplary embodiment, the articulating material forms the articulating surface of one or more condyle portions of the femoral component.

8602290, Dec 10, 2013

Apr 22, 2011

13/092174

Gregory M. Hippensteel - South Whitley IN, US
Lawrence F. Peek - Warsaw IN, US
Jeffrey P. Anderson - Warsaw IN, US
Devendra Gorhe - Warsaw IN, US
Steve M. Allen - Winona Lake IN, US
Joel G. Scrafton - Syracuse IN, US
Casey Harmon - Warsaw IN, US

Zimmer, Inc. - Warsaw IN

B23K 28/00

228194, 228193, 2282621, 22826271, 428660, 428613

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.

8642112, Feb 4, 2014

Jul 15, 2009

12/503535

Joel G. Scrafton - Syracuse IN, US
Jeffrey P. Anderson - Warsaw IN, US
David M. Miller - Warsaw IN, US
Oludele O. Popoola - Granger IN, US

Zimmer, Inc. - Warsaw IN

A61L 33/00

427 224, 427 21, 427294, 427295, 4274121

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.

20030232124, Dec 18, 2003

Jun 6, 2003

10/455846

Dana Medlin - Warsaw IN, US
Steven Charlebois - Goshen IN, US
William Clarke - Warsaw IN, US
Dirk Pletcher - Walkerton IN, US
Joel Scrafton - Leesburg IN, US
H. Shetty - Warsaw IN, US
Dale Swarts - Warsaw IN, US

A61L002/00

427/002260

A method for attaching a porous metal layer to a dense metal substrate, wherein the method is particularly useful in forming orthopedic implants such as femoral knee components or acetabular cups. The method, in one embodiment thereof, comprises providing a structured porous layer; providing a dense metal substrate; providing a binding mixture; applying the binding mixture to the exterior of the substrate; placing the porous layer against the substrate such that the binding mixture is disposed there between forming an assembly; and heat treating the assembly to metallurgically bond the porous layer to the substrate.

20050242162, Nov 3, 2005

Jun 7, 2005

11/146571

Dana Medlin - Warsaw IN, US
Steven Charlebois - Goshen IN, US
William Clarke - Warsaw IN, US
Dirk Pletcher - Walkerton IN, US
Joel Scrafton - Leesburg IN, US
H. Shetty - Warsaw IN, US
Dale Swarts - Warsaw IN, US

B23K020/00

228194000

A method for attaching a porous metal layer to a dense metal substrate, wherein the method is particularly useful in forming orthopedic implants such as femoral knee components or acetabular cups. The method, in one embodiment thereof, comprises providing a structured porous layer; providing a dense metal substrate; providing a binding mixture; applying the binding mixture to the exterior of the substrate; placing the porous layer against the substrate such that the binding mixture is disposed there between forming an assembly; and heat treating the assembly to metallurgically bond the porous layer to the substrate.

20080288081, Nov 20, 2008

May 16, 2007

11/749598

Joel Scrafton - Leesburg IN, US
Popoola Oludele - Granger IN, US

A61F 2/38

623 2033

An implant articular surface wear reduction system improves orthopedic prosthetic joint longevity by reducing frictional abrasive wear. The system includes a polymeric implant component and a rigid implant component. A hard wear layer is attached to the polymeric implant. The hard wear layer represents one opposing articular surface of a joint. The rigid implant component has a working surface and may represent another opposing articular surface in the joint. In one embodiment, the rigid implant component and the hard wear layer are ceramic. In another embodiment, a non-metallic wear layer is attached to the working surface. The non-metallic wear layer represents another opposing articular surface of the joint. In one embodiment, the polymeric implant component is a tibial implant and the rigid implant component is a femoral implant and the non-metallic wear layer is a polymer, such as polyethylene, self-reinforced polyphenylene, or PEEK.

20110015750, Jan 20, 2011

Sep 24, 2010

12/889910

Oludele O. Popoola - Granger IN, US
Joel G. Scrafton - Syracuse IN, US

ZIMMER, INC. - Warsaw IN

A61F 2/38

623 2032

A femoral prosthesis may be formed as a femoral component incorporating a base material and an articulating material. In one exemplary embodiment, the base material is a metal and the articulating material is a polymer. Specifically, the base material provides strength and rigidity to the femoral component, while the articulating material contacts a tibial prosthesis or natural tibia during joint articulation. In one exemplary embodiment, the articulating material forms the articulating surface of one or more condyle portions of the femoral component.

20110230973, Sep 22, 2011

Apr 22, 2011

13/092169

Gregory M. Hippensteel - South Whitley IN, US
Lawrence F. Peek - Warsaw IN, US
Jeffrey P. Anderson - Warsaw IN, US
Devendra Gorhe - Warsaw IN, US
Steve M. Allen - Winona Lake IN, US
Clarence M. Panchison - Warsaw IN, US
David M. Miller - Warsaw IN, US
Joel G. Scrafton - Syracuse IN, US
Casey Harmon - Warsaw IN, US

ZIMMER, INC. - Warsaw IN

A61F 2/28
B23K 20/00
B23K 31/02

623 236, 228194, 2281736

Methods for bonding a porous tantalum structure to a substrate are provided. The method includes placing a compressible or porous interlayer between a porous tantalum structure and a cobalt or cobalt-chromium substrate to form an assembly. The interlayer comprising a metal or metal alloy that has solid state solubility with both the substrate and the porous tantalum structure. Heat and pressure are applied to the assembly to achieve solid state diffusion between the substrate and the interlayer and the between the porous tantalum structure and the interlayer.