| 摘要 |
PROBLEM TO BE SOLVED: To solve technical problem in obtaining guide wire having both of: easiness in folding for quick reaching to entrance part of vascular lesion site by intensionally bending tip end part of guide wire to deform into U-shape as a prevention means for undesired entrance into side branch other than the lesion site; and excellent passing ability at the vascular lesion site.SOLUTION: There is provided a guide wire in which core-wire tip end part comprises fine diameter tip and first head cone from tip end to rear end or comprises combined head cone comprising the first head cone, rotational transmission property to the tip side and the like are provided as structure of the first head cone in which easiness in folding of the tip end part is enhanced by making ratio between the length of fine diameter tip in longitudinal direction and the length of the first head cone in longitudinal direction to meet a constant relational expression and whose outer diameter is enlarged from tip end to rear end or combined head cone structure in which one or more head cones are connected to rear end of the first head cone, so as to quickly reach vascular lesion site and excellent passing ability at the vascular lesion site is provided.SELECTED DRAWING: Figure 9 |
