Balloon catheter
The invention relates to a balloon catheter, in particular for the widening of stents in fenestrations and for T-branch protheses, being provided with a balloon ( 4 ), a supply line in the catheter ( 2 ) leading to the balloon ( 4 ), which allows the balloon ( 4 ) to be pressurized, and a central lumen ( 3 ) for a guidewire, with the balloon ( 4 ) in the expanded state having at least two areas (P, D, M) of different diameter, with these areas merging into one another by forming a step.
1. Balloon catheter, for TIPS procedures, being provided with a balloon, supply lines in the catheter leading to the balloon, which allow the balloon to be pressurized, and a central lumen for a guidewire,
wherein the balloon in its expanded state is subdivided into at least two segments, each segment having a separate supply line for pressurization purposes and wherein the at least two segments of the balloon are of different diameter and longitudinally spaced along a longitudinal axis of the balloon catheter, with these at least two segments merging into one another by forming a step,
characterized in that the balloon comprises first and second segments comprising opposing walls that are non-sharing and that the segments are serially connected to each other via individual weld spots located on and between said opposing walls and that the first segment has a spherical-like shape and has a diameter that is enlarged by 50% to 100% relative to the diameter of the second segment.
2. The balloon catheter of claim 1 with a crimped-on stent.