PROBLEM TO BE SOLVED: To provide a catheter, the whole body of which has visibility under X-ray fluoroscopy, that has no anisotropy in torque transmission and easily adjust the strength and rigidity of the catheter body to appropriate ones.SOLUTION: The cather includes a resin inner cylinder, a reinforcement layer disposed outside the resin inner cylinder, and a resin outer cylinder covering the reinforcement layer. The reinforcement layer is constituted by braiding formed by winding two types of wires with different rigidity around the resin inner cylinder and braiding them into a net shape. At least one of the two types of wires has radiopacity, and the two types of wires are wound around the resin inner cylinder symmetrically into a clockwise and counterclockwise manner with respect to the same type of wires.COPYRIGHT: (C)2016,JPO&INPIT【課題】放射線透視下においてカテーテル全体が視認性を有し、トルク伝達の異方性がなく、カテーテル本体の強度及び剛性を適度に調整しやすいカテーテルを提供すること。【解決手段】樹脂製内筒、該樹脂製内筒の外側に配設される補強層、及び、該補強層を覆う樹脂製外筒を備え、前記補強層は、剛性の異なる2種類の線材が前記樹脂製内筒に巻き付けられて網目状に編み込まれる編組により構成され、前記2種類の線材のうち少なくとも一方は放射線不透過性を有する線材であり、前記2種類の線材は、同じ種類の線材について、前記樹脂製内筒に右巻き及び左巻きに対称に巻き付けられるカテーテル。【選択図】図2
