Surgical implants with solid interiors and porous surfaces
OwnerEdward T. Farris, J. Lester Matthewsinventors
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Abstract
A device is disclosed which has a solid interior and at least one surface which is porous. The porous surface has several desired characteristics, including: (1) the majority of pores have dimensions within a size range that encourages the migration of cells into said pores, such as about 50 to about 500 micron diameters, and (2) the pores have a controlled depth, such as about 300 microns or less. Such devices may be created by several methods, such as injecting casting material into a mold which is fitted with a shell of porous material having the desired shape and characteristics. Such devices are useful as artificial teeth and orthopedic appliances.
Claims4
A device for surgical implantation comprising a solid metallic core piece surrounded by a porous shell formed of a woven, metal material bonded firmly to said core piece, the pores of the shell having a depth of about 300 microns or less and a diameter or a diagonal of about 50 to about 500 microns.
Dependencies are inferred from the claim text.