Die Erfindung betrifft einen Ballonkatheter zur Behandlung einer Stenose in einem Körpergefäß 2, insbesondere zum Einbringen eines Stents 1 in das Körpergefäß 2, wobei der Ballon 10 derart ausgebildet ist, dass er im expandierten Zustand die gekrümmte oder gebogene dreidimensionale Form des Körpergefäßes 2 annimmt.The catheter has an expandable balloon (10) utilized for treating stenoses in bodily vessels. The expandable balloon is formed in an expanded state, and comprises a curved or wound three-dimensional (3D) form in the expanded state. Individual segments of the balloon are welded or glued together at bordering edges. Wires (32-34) are connected to material of the balloon along a curve i.e. helix, such that rigidity of the expandable balloon in an unexpanded state differs in a portion along a first line over the expandable balloon from rigidity along a second line over the expandable balloon. The wires are round wires, profiled wires, flat strips, straight wires and spiral wires.
