Patent ID: 8652195

Claim:
An artificial blood vessel configured to replace a portion of a blood vessel in a living body which has been removed from a remaining portion of the blood vessel in the living body, the artificial blood vessel comprising: a flexible tube having a continuous outer peripheral surface and a portion configured to be fixed to a first part of the remaining portion of the blood vessel in the living body, the flexible tube possessing an inside, one end portion and an oppositely located other end portion, a structure fixed to the one end portion of the tube and configured to be positioned inside a second part of the remaining portion of the blood vessel in the living body, the structure being deformable between a first outside diameter and a second outside diameter, with the second outside diameter being greater than the first outside diameter; and the tube including a lock part fixed to the outer peripheral surface of the tube such that the lock part projects outwardly from the outer peripheral surface, the lock part being configured to be locked at a desired position by a position fixing device when the other end portion of the tube is folded back to the inside of the tube.