Abstract: The invention comprises a method and a device for fixing a joint prosthesis (1, 2; 5) in which all surfaces intended for tissue contact consist of titanium or a titanium-based tissue-compatible metallic material. For safely anchoring the prosthesis in relation to the bone tissue, use is made of pointed fixing elements (3, 11,16) which from the side of the bone tissue that should be facing the prosthesis are driven into the bone tissue with their pointed portions, and which are anchored in cement (9) between the prosthesis and the bone tissue or directly to the prosthesis, such that a solid connection is established by the bone tissue growing onto the anchored pointed portions. For proper adjustment of the prosthetic joint cup and the prosthetic joint ball, these members are moulded under pressure and heat, each respective articular surface being shaped against a model mould of the mating articular surface, and are hardened or sintered in shape contact for minimizing any aftertreatment.

Abstract: The object of the invention is a process of manufacturing a sintered compact of sinterable pulverulent material, in which the powder is moulded against a moulding surface and sintered in contact with the moulding surface and in which the pores in at least local areas of the compact are sealed by infiltration with an infiltration material which during a stage of the infiltration process is in liquid form and which by temperature decrease is caused to solidify in the pores, and the characteristic features of the invention are that the moulding takes place on the moulding surface in such a way that the moulding surface is covered with relatively fine-grained sinterable powder which by its own adhesion or by adhesion intensified by additives is caused to form an at least temporarily retained fine powder layer (3) on the moulding surface, and that at least one layer (5) of sinterable coarse powder is applied to the fine powder layer, and that both layers are sintered and infiltration is effected such that the infi

Abstract: Article produced in a mould for a plastics moulding tool having a mould surface defining the contours of the article, with the article comprising a body formed from a composition comprising a sinterable material having a sintering temperature which material, before sintering, is shapable into a desired shape and which during sintering forms a porous body having pores, the sinterable material being at least partially sintered in the mould, and also comprising a matrix having a lower melting point than the sintering temperature of the sinterable material, with the matrix comprising a matrix metal which is infiltrated in the porous body to substantially fill the pores.

Abstract: The invention relates to a method for manufacturing tubes by sintering and infiltration, the characteristic features of the invention being that the tube wall is formed from a metal powder on a mandrel and is sintered and that the tube wall, during one sintering stage, is sealed by infiltration by means of an infiltration material which solidifies in situ when the temperature is lowered after sintering and which is capable, when in the liquid state, of wetting the metal powder particles, the molding of the tube from the metal powder being preferably carried out by a wet or dry pressing process or by extrusion of the metal powder.