Patent ID: 8603388

Claim:
A method for obtaining a metal implant for support and/or replacement of tissue comprising at least one solid metal core and at least one open porosity metallic superstructure, said method being characterized in that it comprises the following stages: (i) selecting a mould ( 1 ), nonconductive, of suitable shape corresponding to the desired implant, (ii) arranging in said mould at least one solid metal core ( 7 ), (iii) filling out the volume of the mould ( 1 ) remaining available with a powder of microspheres ( 3 ), and (iv) consolidating the microspheres ( 3 ) with each other as well as with said at least one solid core ( 7 ) by electrical discharge sintering, said stage iv) of electrical discharge sintering being realized by discharge of an electrical current, of a predetermined voltage in order to obtain an energy surface density J lower or equal to 10 J/mm 2 between on one hand, at least a first electrode ( 5 ) at the periphery of the mould ( 1 ) and on the other hand, at least a second electrode ( 5 ′) of opposite polarity and positioned so as the lines of current formed between these two electrodes are not parallel to the microspheres/metallic core ( 7 ) interface of higher surface.