Zimmer Gmbh

Bristol-myers Squibb Compnay

Steve Krebs

Clarence M Panchison

Steve T Lin

James J Morr

Deva Devanathan

H Ravindranath Shetty

Mike Hawkins

The invention is directed to a method of making an orthopaedic implant. An orthopaedic implant body is formed which has a supporting surface. A porous metal pad is formed to fit the supporting surface of the body. The porous metal pad is clamped and/or adhesively bonded to the supporting surface. A laser beam is coupled between the porous metal pad and the implant body at a plurality of locations so as to form a coalescence of metal between the porous metal pad and the body.

Orthopedic implant having a porous metal pad

The invention is directed to a method of forming an implant having a porous surface using an organic binder compound to enhance the bonding between the porous surface layer and implant. Preferably, the binder is formed from a water-soluble protein that carbonizes during the sintering process to alloy with the metal of the porous surface layer. The porous surface layer may be in the form of beads or of fiber metal and can be preformed to fit with an implant or formed over the surface of the implant.

Method of making an orthopaedic implant having a porous surface using an

An orthopaedic implant body is formed which has a supporting surface. A porous metal pad is formed to fit the supporting surface of the body. The porous metal pad is clamped and/or adhesively bonded to the supporting surface. A laser beam is coupled between the porous metal pad and the implant body at a plurality of locations so as to form a coalescence of metal between the porous metal pad and the body.

Method of making an orthopaedic implant having a porous metal pad

A method of forming an orthopaedic implant having a porous surface, the method including the steps of providing a porous surface including a porous layer attached to a substantially solid layer; positioning the porous layer on the orthopaedic implant; providing a high energy density welding device capable of producing a high energy density weld beam; and forming a weld bead substantially about the periphery of the porous layer by directing the high energy density weld beam about the periphery of the porous layer, wherein the weld bead bonds the porous layer to the implant. Two shaped porous pads may also be welded together about an implant body to avoid welding the body itself.

Method of making orthopaedic implant by welding

A method of forming an orthopaedic implant having a porous surface, the method including the steps of providing a porous surface including a porous layer attached to a substantially solid layer; positioning the porous layer on the orthopaedic implant; providing a high energy density welding device capable of producing a high energy density weld beam; and forming a weld bead substantially about the periphery of the porous layer by directing the high energy density weld beam about the periphery of the porous layer, wherein the weld bead bonds the porous layer to the implant.

Orthopaedic implant and method of making same

The method and material of this invention eliminates the necessity of removing imbedded particles remaining after shot blasting by providing a method for surface finishing an orthopaedic implant wherein the blasting medium is bioactive. The surface finishing with bioactive material may also be used to clean the porous surface after sintering or diffusion bonding. Since the particles are made from bioactive material, it is not a concern if particles remain in the porous surface after blasting.

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Fort Wayne, IN, United States of America

Steve Krebs