Patent ID: 8894567

Claim:
A medical tube comprising: a flexible and bendable tubular member through which a conduit, through which a medical instrument is insertable, is pierced from a distal end to a rear end; and a side hole that is formed between the distal end and the rear end of the tubular member and causes an outer circumferential side surface of the tubular member and the conduit to communicate with each other, wherein: the tubular member includes a hardness changing portion that deforms a sectional shape of the tubular member in a region distal to the side hole in a linear direction connecting an axial core of the tubular member and the side hole, thereby capable of increasing rigidity of the tubular member in the linear direction in a vicinity of the side hole, and the hardness changing portion includes a leaf spring, and changes rigidity of the tubular member with respect to bendability by expanding, with elasticity of the leaf spring, an outer diameter of the tubular member in a direction in which the side hole faces and reducing the outer diameter in a direction orthogonal to the side hole to deform the sectional shape of the tubular member, by nipping and integrating, with a resilient force of the leaf spring, a distal end portion of the medical instrument inserted through the hardness changing portion, and causing the distal end portion of the medical instrument to slip off from the hardness changing portion.