PROBLEM TO BE SOLVED: To provide a medical tube and a guide wire which can be elastically stretched and / or contracted along an axial direction and can limit deformation in the stretching direction. SOLUTION: The medical tube 70 has a plurality of band portions 73 arranged in a spirally wound manner, and a first side surface 74 of the band portion 73 is a first branch extending from a first bottom portion 74B. It has a portion 74C and a first hook portion 74D extending from the first branch portion 74C in the extending direction of the band portion 73, and the second side surface 75 is a second branch portion extending from the second bottom portion 75B. It has a 75C and a second hook portion 75D extending from the second branch portion 75C in the extending direction of the band portion 73, and the second hook portion 75D is a first bottom portion 74B of another adjacent band portion 73. It is located between the first hook portion 74D and the first hook portion 74D, and the first hook portion 74D is located between the second bottom portion 75B and the second hook portion 75D of the other adjacent band portions 73. [Selection diagram] FIG. 7【課題】軸方向に沿って弾性的に伸長および／または収縮が可能であるとともに、伸長方向への変形を制限できる医療用管体およびガイドワイヤを提供する。【解決手段】螺旋状に巻回するように並ぶ複数の帯部７３を有する医療用管体７０であって、帯部７３の第１側面７４は、第１底部７４Ｂから延在する第１枝部７４Ｃと、第１枝部７４Ｃから帯部７３の延在方向へ延在する第１フック部７４Ｄと、を有し、第２側面７５は、第２底部７５Ｂから延在する第２枝部７５Ｃと、第２枝部７５Ｃから帯部７３の延在方向へ延在する第２フック部７５Ｄと、を有し、第２フック部７５Ｄは、隣接する他の帯部７３の第１底部７４Ｂおよび第１フック部７４Ｄの間に位置し、第１フック部７４Ｄは、隣接する他の帯部７３の第２底部７５Ｂおよび第２フック部７５Ｄの間に位置する。【選択図】図７
