Importance

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Abstract

In a steerable, flexible, torsionally-stable guide wire for medical catheters which is surrounded at its distal end region by a helically wound spring which protrudes beyond the end of the guide wire, an improved atraumatic guidance of the guide wire within particularly narrow passages is obtained in the manner that the guide wire is a continuously hollow metal tube (2) the outside diameter of the metal tube (2) is about 0.1 to 1.0 mm and preferably 0.2 to 0.5 mm at least in the distal end region (3), and at least the distal end region (3) of the metal tube (2) is cylindrical. In this way it is possible to apply contrast agent or therapeutic agent to the tip of the guide wire and advance it in this way under fluoroscopic control.

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First Claim