The invention relates to an implant for vascular use, which implant can be transported through a catheter and is intended in particular to influence the flow of blood in the area of arteriovenous defects, for example fistulas and aneurysms, to fill the bulge caused by the defect, to promote clot formation and to cover the neck of the defect. The implant according to the invention has an occlusion unit (1, 13) of three-dimensional shape composed of a plurality of sub-units (5a, 14) made from a framework of struts (5, 16, 17), wherein a cover, preferably a membrane (6), is located between struts (5, 16, 17).
