PROBLEM TO BE SOLVED: To provide a catheter capable of firmly fastening a distal end tip and a core wire, and capable of securing flexibility of a distal end part.SOLUTION: A catheter 1 comprises: a first hollow shaft； a tubular mesh member 20 whose base end is joined to a distal end of the hollow shaft and which is configured to expand or contract in a radial direction； a distal end tip 30 joined to a distal end of the mesh member 20； and a core wire 50 whose distal end part is joined to the distal end tip 30 and which extends inside the mesh member 20 and the first hollow shaft so that a base end of the core wire 50 is positioned on a base end side with respect to a base end of the first hollow shaft. One or a plurality of through holes 54 are formed at the distal end part 53 of the core wire 50 and a part of the distal end tip 30 enters the through holes 54.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2020,JPO&INPIT【課題】先端チップとコアワイヤとを強固に固着することができ、先端部の柔軟性を確保することができるカテーテルを提供する。【解決手段】カテーテル１は、第１中空シャフトと、基端が中空シャフトの先端に接合され、径方向に拡張または収縮するように構成されたチューブ状のメッシュ部材２０と、メッシュ部材２０の先端に接合された先端チップ３０と、先端部が先端チップ３０に接合され、基端が第１中空シャフトの基端よりも基端側に位置するように、メッシュ部材２０および第１中空シャフトの内側を延びるコアワイヤ５０と、を備え、コアワイヤ５０の先端部５３には１又は複数の貫通穴５４が形成され、貫通穴５４に先端チップ３０の一部が入り込んでいる。【選択図】図３
