PROBLEM TO BE SOLVED: To provide a blood vessel suturing member capable of suturing a blood vessel easily and efficiently and anastomosing a blood vessel in a large diameter with a blood vessel in a small diameter efficiently and a blood vessel suturing device.SOLUTION: A blood vessel suturing member 10 reduces a diameter of a blood vessel P10 along a longitudinal direction, and includes a grip part 11 capable of gripping a part of a blood vessel peripheral wall part along the longitudinal direction from an outer side. The grip part 11 has a larger space than a suturing object part P10A of the blood vessel P10 in an open state, the space gripping the suturing object part P10A of the blood vessel P10 in a closed state. The grip part includes a wire 14 capable of changing its shape by being curved or bent according to a position of the blood vessel P10 in the longitudinal direction and keeping the changed shape.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2018,JPO&INPIT【課題】血管を容易かつ効率的に縫縮することができ、ひいては大径の血管と小径の血管を効率的に吻合することが可能な血管縫縮部材及び血管縫縮装置を提供すること。【解決手段】血管P10を長手方向に沿って縮径する血管縫縮部材10であって、前記長手方向に沿って血管周壁部の一部を外方から把持可能に構成された把持部11を備え、前記把持部11は、開いた状態で前記血管P10の縫縮対象部P10Aより大きな間隔を形成するとともに、閉じた状態で前記血管P10の縫縮対象部P10Aを把持する間隔を形成し、前記血管P10の長手方向における位置に応じて自在に湾曲、屈曲されて形状が変化可能とされ、かつその変化した形状を保持することが可能な針金14を備えていることを特徴とする。【選択図】図2