Guide wire for medical devices

Abstract

The invention relates to a guide wire for medical devices, which has at least one marking, wherein the guide wire ( 1 ) in its distal area has a spiral ( 11 ), which extends from the distal end of the guide wire ( 1 ) in proximal direction and which has at least two adjoining spiral sections ( 110, 111 ) as markings, which at least at their surface consist of different materials.

1 . Guide wire for medical devices, which has at least one marking, characterized in that the guide wire in its distal area has a spiral, which extends from the distal end of the guide wire in proximal direction and which has at least two adjoining spiral sections as markings, which at least at their surface consist of different materials. 
     
     
         2 . Guide wire according to  claim 1 , characterized in that at least the surface of at least one of the at least two spiral sections consists of a material with lower transmissibility for radiation than the transmissibility for radiation of the material of at least one further spiral section of the at least two spiral sections. 
     
     
         3 . Guide wire according to  claim 1 , characterized in that at least one of the spiral sections has a coating. 
     
     
         4 . Guide wire according to  claim 3 , characterized in that the coating is vaporized. 
     
     
         5 . Guide wire according to  claim 1 , characterized in that at least the surface of at least one spiral section consists of a radiopaque material, in particular of gold and/or barium sulfate. 
     
     
         6 . Guide wire according to  claim 1 , characterized in that the spiral sections are separate parts, which are attached to each other at their ends which are facing towards each other, in particular are welded. 
     
     
         7 . Guide wire according to  claim 1 , characterized in that at least two spiral sections form a scale. 
     
     
         8 . Guide wire according to  claim 7 , characterized in that the spiral sections in the scale have a predetermined length and predetermined distances. 
     
     
         9 . Guide wire according to  claim 1 , characterized in that the at least two spiral sections have different lengths. 
     
     
         10 . Guide wire according to  claim 1 , characterized in that the guide wire has at least one indication at its proximal area, which corresponds to the at least one marking at the distal area of the guide wire. 
     
     
         11 . Guide wire according to  claim 1 , characterized in that the guide wire comprises a wire, which has a wire core at its distal end, on which at least at the distal end at least a part of the spiral is put on.