PROBLEM TO BE SOLVED: To provide a medical guide wire capable of preventing an excessive progress of prolapse.SOLUTION: The medical guide wire 1A has a configuration in which a front end side disk-like portion 6A and a base end side disk-like portion 6B as convex portions protruding outward centered on an axis line of the front end of a core shaft 2 are formed on the front end of the core shaft 2 side by side along the axis line direction of the front end of the core shaft 2, a separated distance c between the front and base end side disk-like portions 6A and 6B is set to be shorter than a height a or b of a lower convex portion, out of the height a of the convex portion of the front end side disk-like portion 6A and the height b of the convex portion of the base end side disk-like portion 6B, and an end face of the front end side disk-like portion 6A and an end face of the base end side disk-like portion 6B which are mutually adjacently facing approach and contact to each other when the front end of the core shaft 2 is bent.COPYRIGHT: (C)2012,JPO&INPIT【課題】プロラプスの過度の進展を防止できる医療用ガイドワイヤを提供する。【解決手段】医療用ガイドワイヤ1Aにあって、コアシャフト2の先端部に、コアシャフト2の先端部の軸線を中心にして外向きに張り出している凸部としての先端側円盤形状部6Aと基端側円盤形状部6Bとを、前記先端部の軸線方向に沿って並べて形成し、前記先端側円盤形状部6Aの凸部高さaと、前記基端側円盤形状部6Bの凸部高さbとのうち、低い方の凸部高さa,bよりも、前記先端側円盤形状部6Aと前記基端側円盤形状部6Bとの間の離間距離cが短くなるように設定し、前記コアシャフト2の先端部が屈曲した際に、隣り合う前記先端側円盤形状部6Aの先端と前記基端側円盤形状部6Bの先端とが接近して互いに当接するようにした。【選択図】図1
