| 摘要 |
PROBLEM TO BE SOLVED: To improve treating performance by a method wherein a tip part is formed with an irregular cross sectional shape other than a circle to bury a fine diameter part thereinto and a bending point is so arranged to be easily bendable only in the direction of one axis passing through the axis of a wire material for the simplification and a higher efficiency of a series of operation processes in a preparatory work for the insertion of a catheter. SOLUTION: A tip part 5 with an irregular cross sectional shape of a guide wire 1 is formed with almost an evenly rectangular cross sectional shape made up of a long side L equal to the diameter D of a guide wire main part 6 and a short side S corresponding to the thickness thereof and is given a flat round- tipped shape internally existing centered on a fine diameter part 4 of a core line 2. The X axis of the center line in the direction of the long side L passing through the axis 7 of the fine diameter part 4 is plotted as neutral plane to make an easily bendable point and a corresponding bending rigidity exists in the direction except the X axis. This facilitates the preshaping work of the tip part 5 of the guide wire to stabilize the shape quality of a crooked bend part thereby improving the workability of insertion into a blood vessel while facilitating forward guiding of the tip part 5 to a branch blood vessel. |
