| abstract |
An object of the present invention is to easily perform an operation of pulling a broken wire material during a catheter manufacturing operation. An inner layer 11 formed of a resin material 111 and having a main lumen 20 therein, and a coil layer formed by winding a wire material 31 around a spiral groove 112 formed on an outer peripheral surface of the inner layer 11. 30, an outer layer 12 covering the coil layer 30, a groove 113 formed in series with the spiral groove 112 in the vicinity of the distal end 15 of the inner layer 11, and a spiral pitch gradually formed wider toward the distal end 15, And it forms with the tubular main body 10 which consists of the marker 40 with which the outer periphery of this concave groove 113 was mounted | worn. [Selection] Figure 1 |