Cast bone ingrowth surface

Details Cast bone ingrowth surface Cast bone ingrowth surface

A - Human Necessities

61

L

3/100

A61L 27/00 (2006.01) A61F 2/30 (2006.01) A61F 2/00 (2006.01) A61F 2/36 (2006.01) A61F 2/38 (2006.01)

Patent

CA 2026301

64680-562 PC(HO) 7655 ABSTRACT A prosthetic part for use as an orthopaedic implant has a cast metal base member and a tissue ingrowth surface spaced outwardly therefrom. The tissue ingrowth surface is in the form of a cast metal lattice element which covers at least a part of the outer surface of the base member . The cast metal lattice element is cast simultaneously and integrally with the base member from the same metal. This metal may be any well known castable material for ortho-paedic implants such as Vitallium or titanium. The lattice element is in the form of a grid-like mesh which includes spacer members cast integrally with the wire mesh and the base member to space the lattice element a predetermined distance above the prosthesis surface. An investment casting technique wherein a meltable material is coated with a ceramic casting shell is utilized to produce the integrally cast orthopaedic implant and tissue ingrowth surface.

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