Method for manufacturing catheter, and catheter
This method for manufacturing a catheter involves manufacturing a catheter that includes a braided body having a first element wire and a second element wire intersecting the first element wire, and an outer layer provided on the outer circumference of the braided body, the method comprising: a coating step in which the outer-circumferential side of the braided body is coated with a laser-light-transmissive coating member; a cutting step in which a portion of the first element wire and/or the second element wire in the braided body is irradiated with laser light from the outer side of the coating member and the element wire is cut, said portion being positioned further toward the distal-end side than an intersecting part; and a removal step in which the coating member is removed from the outer-circumferential side of the braided body.
1 . A catheter, comprising:
a braided body having first wires, and second wires crossing the first wires; and
an outer layer provided on an outer circumference of the braided body, wherein
in the braided body, the first wires and the second wires are radially overlapped and joined at crossing parts such that one of the first wires and the second wires are arranged radially inside the other of the first wires and the second wires, and
the crossing parts have recess parts on a tip side of at least radially outer surfaces of the crossing parts, and tip parts of the one of the first wires and the second wires do not protrude from at least a part of tip-side lateral surfaces of the crossing parts.
2 . The catheter according to claim 1 , wherein radially outer surfaces of the tip parts of the one of the first wires and the second wires, protruding to a tip side from width-directional side surfaces of portions of the other of the first wires and the second wires including the crossing parts, are arranged at identical radial direction positions on radially outer surfaces of the other of the first wires and the second wires, or arranged radially inside at the crossing parts.
3 . The catheter according to claim 2 , wherein the first wires and the second wires are formed by metal wires made of the same metallic material.
4 . The catheter according to claim 2 , wherein the tip parts of the one of the first wires and the second wires have one-side run-over parts extending so as to be away from the crossing parts along a longitudinal direction of the other of the first wires and the second wires.
5 . The catheter according to claim 2 , wherein the tip parts of the other of the first wires and the second wires have other-side run-over parts running out so as to protrude from the crossing parts in a longitudinal direction of the other of the first wires and the second wires.