PROBLEM TO BE SOLVED: To provide a catheter for stent placement with excellent drawing property in addition to pushability, torque transmission and followability.SOLUTION: The catheter for stent placement is provided with a cylindrical body 10 including a first layer 11 in which adjacent metal wires 11a are closely attached and spirally wound, a second layer 12 in which adjacent metal wires 12a are closely attached and spirally wound in a direction different from the first layer 11 and an inner peripheral surface is closely attached to the outer peripheral surface of the first layer 11, and a cylindrically formed third layer 13 in which the inner peripheral surface is closely attached to the outer surface of the second layer 12. A sheath 3 movable relative to the cylindrical body 10 along the axial direction of the cylindrical body 10 is provided around the cylindrical body 10, and a stent arrangement area 2 is provided on the distal end side from the cylindrical body 10. The sheath 3 covers the stent arrangement area 2 when the distal end of the sheath 3 is positioned on the distal end side from the distal end of the cylindrical body 10, and the stent arrangement area 2 is exposed when the distal end of the sheath 3 is moved to the proximal end side from the distal end of the cylindrical body 10.COPYRIGHT: (C)2013,JPO&INPIT【課題】押し込み性、トルク伝達性、追従性に加え、引き込み性が良好なステント留置用カテーテルを提供する。【解決手段】隣り合う金属線11aが密着し、螺旋状に巻回された第1層11と、隣り合う金属線12aが密着し、第1層11とは異なる方向に螺旋状に巻回され、内周面が第1層11の外周面に密着した第2層12と、筒状に形成され、内周面が第2層12の外表面に密着した第3層13とを含む筒状体10が設けられている。その筒状体10の周囲に筒状体10の軸方向に沿って筒状体10と相対移動可能なシース3が設けられ、筒状体10よりも先端側にステント配置領域2が設けられている。このシース3の先端が筒状体10の先端よりも先端側に位置しているときは、シース3はステント配置領域2を覆い、筒状体10の先端よりも基端側へ移動したときはステント配置領域2が露出する。【選択図】図1
