Problem to be solved: to provide a catheter capable of being able to hold the other end portion of the tension yarn in a simple operation in the state where the tension is applied to one end portion of the tension thread in a simple operation, and to readily confirm the held state by visual inspection.The catheter 1 comprises a catheter body 3, a covering tube 5, an adapter 7, a tension thread 9 and a tightening member 11. One end portion of the tension thread 9 is connected to the distal end portion of the proximal portion 3a of the catheter body 3, and the other end portion of the tension thread 9 is connected to the fastening member 11. A tension is applied to one end of the tension yarn 9, so that a loop is formed in the proximal portion 3a of the catheter body 3.The tension member 9 is fitted around the outer periphery of the coating tube 5 in the state where a constant tension is applied to one end portion, and the tension member 11 is fitted so as to surround the other end portion of the wound tension thread 9 from the outside, and tension thread is applied to the outer periphery of the coating tube 9 is tightened.Diagram【課題】引張糸の一端部に一定の張力が付与された状態で引張糸の他端部をカテーテル本体に簡単な作業で保持することができ、かつ、保持した状態を目視で容易に確認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、カテーテル本体3、被覆管5、アダプタ7、引張糸9および緊締部材11を備える。引張糸9の一端部はカテーテル本体3の近位部3aの先端部に結着され、引張糸9の他端部は緊締部材11に結着されている。引張糸9が引っ張られてその一端部に一定の張力が付与されることでカテーテル本体3の近位部3aにループが形成される。一端部に一定の張力が付与された状態の引張糸9の他端部が被覆管5の外周部に巻き付けられ、その巻き付けられた引張糸9の他端部を外側から囲繞するように緊締部材11が嵌合されることで被覆管5の外周部に引張糸9が緊締される。【選択図】図1
