Vascular anastomosis device

The invention relates to a vascular anastomosis device, and belongs to the technical field of medical instruments. The vascular anastomosis device comprises an anastomat male part and an anastomat female part, wherein the anastomat male part and the anastomat female part are each in a hollow circular ring shape, and the anastomat male part is provided with a nested section connected with the anastomat female part; and the outer diameter of the nested section of the anastomat male part is smaller than the inner diameter of the anastomat female part. According to the vascular anastomosis device, the blood vessel is anastomosed in a one-way clamping mode of the male part and the female part, a suture-free blood vessel anastomosis device is simple, safe and rapid, materials left in a blood vessel cavity do not exist, the anastomosis device is simple in structure, safe, reliable and effective to use and free of suture, and the occurrence of anastomosis needle eye errhysis is reduced to the maximum extent; and the