An object of the present invention is to provide a catheter capable of preventing a core wire from coming off from a mesh member when the mesh member is expanded. The catheter 1 of the present invention is made of a metal material and has a tubular mesh member 110 that can be radially expanded and contracted, a first hollow shaft 120, a distal tip 130 connected to the distal end of the mesh member 110, The mesh member 110 and the first hollow shaft 120 are formed of a material such that the distal end is located at the distal end of the mesh member 110 and the proximal end is located closer to the proximal end than the proximal end of the first hollow shaft 120. A core wire 150 extending through the inside thereof, and a joining portion is formed by joining a tip portion of the core wire 150 and a tip portion of the mesh member 110.メッシュ部材の拡張時にメッシュ部材からコアワイヤが外れるのを防止することが可能なカテーテルの提供を目的とする。 本発明のカテーテル１は、金属材料で形成され、径方向に拡縮可能なチューブ状のメッシュ部材１１０と、第１の中空シャフト１２０と、メッシュ部材１１０の先端に接続された先端チップ１３０と、金属材料で形成され、先端がメッシュ部材１１０の先端に位置し、かつ基端が第１の中空シャフト１２０の基端よりも基端側に位置するようにメッシュ部材１１０および第１の中空シャフト１２０の内部を通って延びるコアワイヤ１５０と、を備え、コアワイヤ１５０の先端部とメッシュ部材１１０の先端部との接合により接合部が形成されている。
