Porous coated implant and method of making same

Details Porous coated implant and method of making same Porous coated implant and method of making same

1993-04-06

1995-08-22

Prebilic, Paul B.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Making porous product

623 23, 623901, 623 16, A61F 228

Patent

active

054435102

ABSTRACT:
The method forms a thin layer of metal mesh on the surface of the implant for the bonding with a porous surface layer to prevent the formation of notches within the body of the implant. The layer of metal mesh can be formed by a number of known methods including conventional welding processes such as arc welding, resistance welding, electron beam welding, laser beam welding, friction welding, ultrasonic welding, cladding. The porous metal surface layer is preferably formed from titanium wire or titanium beads in a known process. The porous surface layer is bonded by a known process such as diffusion bonding, sintering, welding, or cladding.
By bonding the porous surface layer to the thin layer of metal mesh, notches normally formed in the body of the implant are substantially eliminated. Therefore, the designer of the implant is not limited as to the location and amount of porous surface layer to be placed on the implants.

REFERENCES:
patent: 4636219 (1987-01-01), Pratt et al.
patent: 4943412 (1990-07-01), Bania et al.
patent: 4969904 (1990-11-01), Koch et al.
patent: 4976738 (1990-12-01), Frey et al.
patent: 4980127 (1990-12-01), Parris et al.
patent: 5198308 (1993-03-01), Shetty et al.

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