| 摘要 |
<p>A guide wire having a flexible distal end portion, uniform outer diameter and no stepped difference in the external surface is provided. The guide wire comprises a core wire (1) having a core body portion (11) having a relatively large cross sectional area and a distal end portion (12) provided at a distal end (111) of the core body portion (11) and having a relatively small cross sectional area, and a resin layer (2) coated on the core wire (1). At least the distal end portion (12) comprises a sparse bundle of a plurality of slender wire filaments (121), and substantially no stepped difference is present between the distal end portion (12) and the core body portion (11). The core body portion (11) is a slender wire filament having a section formed in a circular shape or a bundle of slender wire filaments whose number is more than that of the distal end portion and when used for inserting a catheter for PTCA, the diameter (average) of the core body portion (11) is preferably about 0.05 mm to 0.10 mm. <IMAGE></p> |
