Patent ID: 7381205

Claim:
A device for adjustably displacing a distal end portion of a flexible catheter tube, said device having a guide wire made of spring-elastic material, which guide wire is guided slidably through the catheter tube into a starting position, in such a way that, when the wire is drawn to a greater or lesser extent from the starting position, the distal end portion of the flexible catheter tube is displaced, characterized in that the guide wire has a spirally shaped distal end portion lying in one plane and doubling back on itself so that at least a portion of said spirally shaped distal end portion overlaps an adjacent portion, and in the starting position lies directly in front of the distal end of the catheter tube, and, when the guide wire is drawn proximally from the starting position into the flexible catheter tube, the distal end portion of the flexible catheter tube is displaced under the action of the spring force of the spirally shaped distal end portion which necessarily opens out.