Medical elongated body and medical instrument set

A medical elongated body comprising:

• a shaft portion comprising a linear body and a proximal portion;
• a distal member disposed in a distal side of the shaft portion and having a distal end and a proximal end, the distal member having a distal end opening portion adjacent to the distal end of the distal member and a proximal end opening portion adjacent to the proximal end of the distal member, the distal member including a lumen extending from the distal end opening portion to the proximal end opening portion, the distal member having a first region having an inner layer and an outer layer which are made of a resin material, and a second region having the inner layer and the outer layer, and a tubular member disposed between the inner layer and the outer layer in the second region, the proximal end opening portion being disposed at a proximal end of the lumen, the proximal end opening portion comprising an inclined region having a proximally-decreasing dimension, and the proximal end opening portion of the distal member being located distal of the proximal portion of the shaft portion;
• and
• a reinforcement layer comprising a metallic material arranged between the inner layer and the outer layer of the first region of the distal member.

A medical elongated body comprising:

• a shaft portion comprising a linear body and a proximal portion;
• a distal member disposed in a distal side of the shaft portion and having a distal end and a proximal end, the distal member having a distal end opening portion adjacent to the distal end of the distal member and a proximal end opening portion adjacent to the proximal end of the distal member, the distal member including a lumen extending from the distal end opening portion to the proximal end opening portion, the distal member having a first region having an inner layer and an outer layer which are made of a first region resin material, and a second region having an inner layer and an outer layer which are made of a second region resin material, and a tubular member disposed between the inner layer and the outer layer in the second region, the tubular member has an opening portion, the outer layer of the second region is welded to the inner layer via the opening portion, the proximal end opening portion being disposed at a proximal end of the lumen, the proximal end opening portion comprising an inclined region having a proximally-decreasing dimension, and the proximal end opening portion of the distal member being located distal of the proximal portion of the shaft portion;
• and
• a reinforcement layer comprising a metallic material arranged between the inner layer and the outer layer of the first region.