PROBLEM TO BE SOLVED: To achieve the enhancement of the restoration properties of a leading end part from U-shaped bending in a medical guide wire and the prevention of the development of the U-shaped bending of the guide wire in use of the guide wire.SOLUTION: The guide wire 1 includes a core shaft 2 having a leading end part reduced in diameter, an outside flexible pipe body 4 for surrounding the outer periphery of the core shaft 2 and an inside flexible pipe body 5 for surrounding the leading end part of the core shaft 2 inside the outside flexible pipe body 4. The inside flexible pipe body 5 is formed so that the outer diameter thereof is formed into a tapered shape gradually becoming fine toward the tip thereof or becoming fine stepwise toward the tip thereof.COPYRIGHT: (C)2012,JPO&INPIT【課題】医療用のガイドワイヤにおいて、先端部のU字屈曲からの復元性を向上させ、ガイドワイヤ使用時のガイドワイヤのU字屈曲の発達を防止することを目的とする。【解決手段】ガイドワイヤ1は、細径の先端部を有するコアシャフト2と、コアシャフト2の外周を囲う外側可撓管体4と、外側可撓管体4の内側でコアシャフト2の先端部を囲う内側可撓管体5とを備え、内側可撓管体5は、その外径が先端に向かって徐々に細くなるテーパ状を呈している、又は、先端に向かって段階的に細くなっている。【選択図】 図2
