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US 7,632,575 B2Granted
Laser based metal deposition (LBMD) of implant structures
AssigneeIMDS Corporation
InventorsDaniel F. Justin, Brent E. Stucker
Life of this patent
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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.
Claims35
A device comprising:
- a medical implant comprising:
- a metal base structure;
- and
- a bearing material formed onto said metal base structure by Laser Based Metal Deposition (LBMD) in an inert gas atmosphere to provide a small bonding zone at which material is deposited and rapidly cooled to form an articulating bearing surface;
- wherein the bearing material comprises a biocompatible composition and has a hardness greater than a hardness of the metal base structure;
- wherein the bearing material comprises a thickness ranging from about 0.01 inches to about 0.2 inches.
3 more elements
A device comprising:
- a medical implant comprising:
- a base;
- and
- a bearing material formed onto said base by Laser Engineered Net Shaping (LENS) in an inert gas atmosphere to provide a small bonding zone at which material is deposited and rapidly cooled to form an articulating bearing surface, thereby forming a medical implant device implantable into a body of a patient;
- wherein the bearing material has a hardness greater than a hardness of the base;
- wherein the bearing material comprises a thickness ranging from about 0.01 inches to about 0.2 inches.
3 more elements
A method for constructing a medical implant device, the method comprising:
- forming a medical implant structure from a base metal;
- and
- forming an articulating surface on said medical implant structure using Laser Based Metal Deposition (LBMD) in an inert gas atmosphere to provide a small bonding zone at which material is deposited and rapidly cooled, wherein the articulating surface comprises a biocompatible composition;
- wherein the bearing material comprises a thickness ranging from about 0.01 inches to about 0.2 inches.
1 more element
Dependencies are inferred from the claim text.