Abstract: An implant, in particular an intraluminal endoprosthesis, or a semi-finished part for an implant, having a hollow cylindrical body, wherein the body includes magnesium, and the body is enriched with gallium or a gallium alloy in a region close to a surface.

Abstract: A medical implant that includes a scaffold having at least one receptacle for an X-ray marker. The scaffold includes a first metal. At least one (preferably monolithic) X-ray marker is disposed in the receptacle. The X-ray marker includes a second metal. An electrically insulating coating is upon the X-ray marker to prevent corrosion-promoting contact between the X-ray marker and the scaffold.

Abstract: An orthopedic implant, such as a bone screw with a self-tapping thread, is formed of a biodegradable material such as a magnesium alloy. A bioactive surface coating is provided on the implant, such as at the threading. The coating contains micro-abrasives which assist with screw/implant penetration, and/or contains microcapsules containing lubricant, wherein the microcapsules rupture from pressure and frictional heat as the implant penetrates bone.

Abstract: An implant, in particular an intraluminal endoprosthesis, or a semi-finished part for an implant, having a hollow cylindrical body, wherein the body includes magnesium, and the body is enriched with gallium or a gallium alloy in a region close to a surface.

Abstract: A bone screw formed primarily of a magnesium alloy has a self-tapping thread, and is prestressed with a retained torsional stress oriented oppositely to the direction in which the screw is screwed into bone. The pre-stressing opposes the torsional stresses arising from screwing in the screw, thereby raising the effective strength of the screw and/or allowing for a reduction in its size/mass.

Abstract: A method for producing an implant and the implant itself, particularly an intraluminal endoprosthesis, wherein the implant is produced from a preferably hollow cylindrical semifinished article (10), wherein the semifinished article contains magnesium or a magnesium alloy, the method comprising preparing the semifinished article (10), and shaping the semifinished article at a temperature of between 250° C. and 550° C. using a tool, which has a metallic lubricant containing gallium and/or a gallium compound on at least a part of its surface that will come into contact with the semifinished article.

Abstract: A medical implant that includes a scaffold having at least one receptacle for an X-ray marker. The scaffold includes a first metal. At least one (preferably monolithic) X-ray marker is disposed in the receptacle. The X-ray marker includes a second metal. An electrically insulating coating is upon the X-ray marker to prevent corrosion-promoting contact between the X-ray marker and the scaffold.

Abstract: A method for producing a semifinished part (20) for an implant, in particular for an intraluminal endoprosthesis, which comprises the following steps: a) providing a first sleeve (11) from a first metallic material and at least one second sleeve (12, 13) from a second metallic material, b) arranging the first sleeve (11) and the at least one second sleeve (12, 13) into one another in such a manner that the sleeve combination (10) forms at least a press fit between said sleeves, and c) forming the sleeve combination (10) at an increased temperature by means of extrusion. The invention further includes a method for producing an implant, to a corresponding semifinished part or a corresponding implant, respectively.

Abstract: An orthopedic implant, such as a bone screw with a self-tapping thread, is formed of a biodegradable material such as a magnesium alloy. A bioactive surface coating is provided on the implant, such as at the threading. The coating contains micro-abrasives which assist with screw/implant penetration, and/or contains microcapsules containing lubricant, wherein the microcapsules rupture from pressure and frictional heat as the implant penetrates bone.

Abstract: A bone screw formed primarily of a magnesium alloy has a self-tapping thread, and is prestressed with a retained torsional stress oriented oppositely to the direction in which the screw is screwed into bone. The pre-stressing opposes the torsional stresses arising from screwing in the screw, thereby raising the effective strength of the screw and/or allowing for a reduction in its size/mass.

Abstract: The invention describes a stent (1) formed of at least two meander-shaped segments (3a and 3b), which has a supporting structure (8) for an active ingredient in areas of abated flow.

Abstract: A stent made of a material having a low strength and having a main body circumscribing a cylindrical shape and radially expandable from a contracted starting position into a dilated support position, comprising a) a plurality of support segments disposed around the circumference and arrayed on one another in the axial direction each segment being formed by a strut meandering in its coarse structure in its contracted starting position and having alternately opposing meandering curves expandable into the support position made of flexible material; b) a plurality of axial connectors connecting between zenith points of at least a part of the meandering curves in the axial-parallel direction of the support segments; (c) a plurality of x-ray marker projections, and d) at least one stabilizer for stabilizing the strut coarse structure in its contracted starting position against radial expansion and being automatically detachable upon radial expansion.

Abstract: A device for use as an endoprosthesis, having a base body (1, 1?), comprising a metallic material, and a function element (3, 3?) that is attached to the base body and has a different metallic material composition in comparison with the material of the base body (1, 1?). To reduce direct metal contact between the base body (1,1?) and the function element (3, 3?), a first layer (5, 5?) is introduced into the borderline area (9, 9?) between the base body (1, 1?) and the function element (3, 3?), extending to the surface, wherein the first layer is produced by plasma-chemical treatment in an aqueous solution containing phosphate ions, or comprises magnesium stearate.

Abstract: A stent comprising an essentially tubular open supporting structure (4) of interconnected trusses (9), whereby the supporting structure (4) can be widened radially with deformation of the trusses (9) for application of the stent, and predetermined breaking points (14) in the supporting structure (4) for fragmentation of the stent after application, and the ends (10, 11) of the trusses (9) that are adjacent to the respective predetermined breaking point (14) having a joint design and which are provided in the area of the predetermined breaking point (14), such that the ends (10, 11) of the trusses (9) are held together with articulation under an applied pressure with the predetermined breaking point (14) broken.

Abstract: An implant having a base body, comprised either entirely or in part of a biocorrodible metallic material wherein at least the parts of the base body having the biocorrodible metallic material are at least partially covered with a coating of a crosslinked CFx layer that is nonpolymerized and has an F/C ratio in the range of 0.5 to 1.5.

Abstract: A method for producing a semifinished part (20) for an implant, in particular for an intraluminal endoprosthesis, which comprises the following steps: a) providing a first sleeve (11) from a first metallic material and at least one second sleeve (12, 13) from a second metallic material, b) arranging the first sleeve (11) and the at least one second sleeve (12, 13) into one another in such a manner that the sleeve combination (10) forms at least a press fit between said sleeves, and c) forming the sleeve combination (10) at an increased temperature by means of extrusion. The invention further includes a method for producing an implant, to a corresponding semifinished part or a corresponding implant, respectively.

Abstract: A stent made of nitinol having improved axial or radial stiffness, the stent having a support structure which comprises peripheral struts around the circumference, wherein the peripheral struts are linked to one another in the axial direction via connection struts. The support structure may assume a first compressed state and a second expanded state. The nitinol is in the support structure in a martensitic microstructure in the compressed state and largely in an austenitic microstructure in the second expanded state. One or more support structure sections, however, are entirely or partially in a martensitic microstructure in the second expanded state.

Abstract: A stent made of a material having a low strength and having a main body circumscribing a cylindrical shape and radially expandable from a contracted starting position into a dilated support position, comprising a) a plurality of support segments disposed around the circumference and arrayed on one another in the axial direction each segment being formed by a strut meandering in its coarse structure in its contracted starting position and having alternately opposing meandering curves expandable into the support position made of flexible material; b) a plurality of axial connectors connecting between zenith points of at least a part of the meandering curves in the axial-parallel direction of the support segments; (c) a plurality of x-ray marker projections, and d) at least one stabilizer for stabilizing the strut coarse structure in its contracted starting position against radial expansion and being automatically detachable upon radial expansion.

Abstract: The invention relates to stents made of a material with an elongation at rupture of 30% or less and with a tubular base body which entirely or in parts comprises structural segments which are interconnected in longitudinal direction of the stents by means of transverse connectors and in which the structural segments comprise a zigzagging or undulating structure of a brace which is wrapped around the longitudinal axis of the stent. Due to the mechanical properties of the materials used, adaptation of the stent design is required. This is achieved in that in a turning region of the zigzagging or undulating structure the brace comprises a straight bending section aligned in circumferential direction.

Abstract: The invention relates to a device, in particular for medical use as an endoprosthesis, preferably as an intraluminal endoprosthesis, having a base body (1, 1?), comprising at least partially a metallic material, and having a function element (3, 3?) that is attached to the base body and has a different metallic material composition in comparison with the material of the base body (1, 1?) in at least a portion of its volume, preferably having at least partially radiopaque and/or radiologically opaque material.