Laser based metal deposition (LBMD) of implant structures

Details Laser based metal deposition (LBMD) of implant structures Laser based metal deposition (LBMD) of implant structures

2006-05-10

2010-02-23

McNeil, Jennifer (Department: 1794)

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

C428S610000, C428S661000, C428S666000, C428S678000, C427S002240, C427S586000, C427S597000, C148S525000, C148S565000, C623S023530

Reexamination Certificate

active

07666522

ABSTRACT:
A method is provided for depositing a hard wear resistant surface onto a porous or non-porous base material of a medical implant. The wear resistant surface of the medical implant device may be formed by a Laser Based Metal Deposition (LBMD) method such as Laser Engineered Net Shaping (LENS). The wear resistant surface may include a blend of multiple different biocompatible materials. Further, functionally graded layers of biocompatible materials may be used to form the wear resistant surface. Usage of a porous material for the base may promote bone ingrowth to allow the implant to fuse strongly with the bone of a host patient. The hard wear resistant surface provides device longevity, particularly when applied to bearing surfaces such as artificial joint bearing surfaces or a dental implant bearing surfaces.

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