Patent ID: 8486010

Claim:
A bendable catheter comprising: a main tube comprising a distal end, a proximal end, and a first lumen and a second lumen that communicate from the distal end to the proximal end, wherein the first lumen is parallel with the second lumen; a bendable part having a longitudinal axis and including a first internal space formed along the longitudinal axis, wherein the bendable part is provided at the distal end of the main tube and is capable of being bent; a first coil including a second internal space formed along the longitudinal axis, wherein the first coil is fixed with a distal end of the first lumen at a position where the second internal space is communicated with the first lumen, and wherein the first coil extends to a distal end of the bendable part in the first internal space; a second coil including a third internal space formed along the longitudinal axis, wherein the second coil is fixed with a distal end of the second lumen at a position where the third internal space is communicated with the second lumen, wherein the second coil extends to the distal end of the bendable part in the first internal space, and wherein the second coil is arranged parallel with the first coil between the bendable part and the first coil in the longitudinal axis; and a bending manipulation wire inserted through the third internal space and the second lumen, wherein the bending manipulation wire is arranged so as to be movable along the longitudinal axis within the second coil, and wherein a distal end of the bending manipulation wire is fixed to the bendable part to cause the bendable part to bend in accordance with movement of the bending manipulation wire in a direction of the longitudinal axis, wherein the bendable part comprises a bendable tube fixed to the distal end of the main tube, and wherein the second coil is fixed in the distal end of the main tube.