The invention relates to an implant (6, 18) for influencing the blood flow in the region of aneurysms which are localised at vascular branches; wherein the implant (6, 18) is available in an expanded state, in which it is implanted in the blood vessel, and in a contracted state, in which it can be moved through the blood vessel; wherein the implant (6, 18) comprises a first (1, 14) and a second braided portion (2, 15) which are tubular in the expanded state and the walls of which are constructed from individual interwoven wires (3); wherein the first (1, 14) and the second braided portion (2, 15) each comprise an opening (4, 5, 16, 17) in the wall and at least the size of the opening (5, 17) in the second braided portion (2, 15) is sufficient for the first braided portion (1, 14) to be guided through; wherein the openings (4, 5, 16, 17) in the walls are made such that the wires (3) forming the braided portions (1, 2, 14, 15) are radially displaced at the positions of the openings (4, 5, 16, 17) and the first braided portion (1, 14) is guided through the opening (5, 17) in the wall of the second braided portion (2, 15) such that the opening (4, 16) in the wall of the first braided portion (1, 14) points towards the opening (5, 17) in the wall of the second braided portion (2, 15).
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