Patent ID: 6966891

Claim:
A catheter comprising: a sheath main body portion to be inserted into an organism; a first lumen, which is a passage provided in said sheath main body portion, which has a first axis, and through which a guide wire for guiding said sheath main body portion in said organism can be passed, said first lumen comprising a first distal end opening portion, which is provided on the distal end side in the direction of insertion into said organism and through which said guide wire can be passed, and a first proximal end opening portion, which is provided on the proximal end side and through which said guide wire can be passed; a sheath distal end portion provided at a distal end portion of said sheath main body portion; and a second lumen being a passage different from said first lumen, said second lumen being provided in said sheath distal end portion, said second lumen comprising a second distal end opening portion and a second proximal end opening portion through which a guide wire can be passed, and said second lumen having a second axis different from said first axis; said sheath main body portion comprising a reinforcing part at a joint portion between said sheath main body portion and said sheath distal end portion, a portion of said first lumen extending through said reinforcing part; wherein said second proximal end opening portion of said second lumen is provided on the distal end side of a position at a distance of 60 mm from said first distal end opening portion of said first lumen toward the proximal end side along said insertion direction.