Laser based metal deposition of implant structures
AssigneeMedicine Lodge, Inc.
InventorsDaniel F. Justin, Brent E. Stucker
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Abstract
A method of depositing a hard wear resistant surface onto a porous or non-porous base material of a medical implant. The medical implant device formed by a Laser Based Metal Deposition (LBMD) method. The porous material of the base promotes bone ingrowth allowing the implant to fuse strongly with the bone of a host patient. The hard wear resistant surface provides device longevity when applied to bearing surfaces such as artificial joint bearing surface or a dental implant bearing surface.
Claims54
A method for constructing a medical implant device, comprising:
- forming a porous metal base;
- depositing a corrosion barrier layer on said porous metal base, said deposition including laser based metal deposition (LBMD);
- and
- depositing a layer comprising a bearing material onto said corrosion barrier layer using LBMD.
A method as in clam 8, wherein said alloy comprised of cobalt (Co) and chromium (Cr) is formed as a foil, wherein despositing said bearing material layer comprises heating said foil with a laser.
A method as in clam 8, wherein said alloy comprised of cobalt (Co) and chromium (Cr) is formed as a powder, wherein depositing said bearing material layer comprises heating said wire with a laser.
A method as in clam 8, wherein said alloy comprised of cobalt (Co) and chromium (Cr) is formed as a wire, wherein depositing said bearing material layer comprises heating said wire with a laser.
A method for constructing a medical implant device, comprising:
- forming a first structure including a porous base;
- depositing a corrosion barrier layer on said porous metal base, said deposition including laser based metal deposition;
- depositing a layer comprising Co and Cr (Co—Cr) onto said corrosion barrier layer using laser based metal deposition;
- providing a second structure comprising Co—Cr;
- and bonding said deposited Co—Cr portion of said first structure onto said second structure.
A medical implant device, comprising:
- a porous metal base;
- corrosion barrier layer formed on said porous metal base by laser based metal deposition (LBMD);
- and
- a second layer formed on said corrosion barrier layer using LBMD, the second layer having a hardness greater than the porous metal base.
A method for constructing a medical implant device, the method comprising:
- forming a structure from a base metal having a biocompatible composition;
- and
- depositing a bearing material onto a surface of the base metal using Laser Based Metal Deposition (LBMD).
A medical implant device, comprising:
- a metal base structure having a biocompatible composition;
- and
- a bearing material formed onto said metal base structure by Laser Based Metal Deposition (LBMD);
- wherein the bearing material has a hardness greater than a hardness of the metal base structure.
A method for constructing a medical implant device, the method comprising:
- forming a base shaped to be secured to a body part of a patient;
- and
- depositing a bearing material onto a surface of the base using Laser Based Metal Deposition (LBMD).
A medical implant device comprising:
- a base shaped to be secured to a body part of a patient;
- and
- a bearing material formed onto said base by Laser Based Metal Deposition (LBMD);
- wherein the bearing material has a hardness greater than a hardness of the base.
Dependencies are inferred from the claim text.