Implant for influencing the blood flow in arteriovenous malformations

摘要

The invention relates to an implant (1) for blood vessels, in particular for influencing the blood flow in the area of arteriovenous malformations, with a wall made of individual filaments (2), which are combined to form an essentially tubular braid that extends in the axial direction from proximal to distal extends, the individual filaments (2) crossing each other and forming points of intersection (3) with one another, the implant (1) being deformable in such a way that it takes on a shape with a reduced diameter in an insertion catheter and adjusts at the site of the implantation the blood vessel diameter expands, at the proximal and / or distal end of the braid the filament ends are each brought together at least in pairs and are permanently connected to one another, the connected filament ends being atraumatically shaped, and the crossing filaments (2) at the points of intersection located distal to the filament ends (3) a m proximal end (10) of the implant (1) are each directly or indirectly connected to each other. In this way it is ensured that the implant (1) also expands to the vessel walls at the proximal end after release and that the filament ends do not protrude into the vessel lumen.