Corrugated tube provided with passage maintenance member, and wire harness

A corrugated tube with a passage maintaining member, comprising:

• a corrugated tube having annular convex portions and annular concave portions alternately disposed along a longitudinal direction of the corrugated tube and a slit formed along the longitudinal direction;
• a die-molded passage maintaining member that maintains a shape at least part of which is curved along the longitudinal direction, the passage maintaining member having an arc-shaped horizontal cross section, an opening that passes through inner and outer circumferential sides of the passage maintaining member and extends along at least part of the longitudinal direction, the passage maintaining member being arranged along an outer circumference of the corrugated tube in a state in which the opening is arranged at an outer circumferential side of the slit;
• and
• a mounting member having (i) an inner circumferential-side engaging portion that is configured to engage an inner circumferential-side portion of the slit of the corrugated tube, (ii) an outer circumferential-side engaging portion that is configured to engage an outer circumferential-side portion of the opening of the passage maintaining member, and (iii) a connector that connects the inner and outer circumferential-side engaging portions.