PROBLEM TO BE SOLVED: To provide a balloon catheter capable of adjusting a balloon effective length by selectively switching it.SOLUTION: A balloon catheter 10 includes a shaft 12 having a plurality of lumens, a balloon part 14 having a plurality of balloons 14a-14c, a hub 20 having a hub lumen 56 for flowing fluid for expansion, and a switching mechanism 22 for switching a communication state through the shaft 12 between the inside of the plurality of balloons 14a-14c and the hub lumen 56. The switching mechanism 22 is configured so as to switch a state between the state in which only one balloon of the plurality of balloons 14a-14c is communicated with the hub lumen 56, and a state in which two or more, or all of the balloons are communicated with the hub lumen 56.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2017,JPO&INPIT【課題】バルーン有効長を選択的に切り換えて調整することができるバルーンカテーテルを提供する。【解決手段】バルーンカテーテル10は、複数のルーメンを有するシャフト12と、複数のバルーン14a~14cを有するバルーン部14と、拡張用流体を流すハブ内腔56を有するハブ20と、複数のバルーン14a~14cの内部とハブ内腔56とのシャフト12を介した連通状態を切り換える切換機構22とを備える。切換機構22は、複数のバルーン14a~14cのうち1つのバルーンのみとハブ内腔56とを連通させる状態と、2つ以上又はすべてのバルーンとハブ内腔56とを連通させる状態とに切り換え可能に構成されている。【選択図】図3