Novel anastomosis ring

The utility model provides a novel anastomosis ring which comprises a first anastomosis ring body and a second anastomosis ring body which are matched with each other and coaxially arranged, the first anastomosis ring body and the second anastomosis ring body are oval or round, the first anastomosis ring body is connected with a first base, the second anastomosis ring body is connected with a second base, and a guide part is arranged between the first base and the second base. The guide part comprises a guide hole and a guide column which are arranged on the first base and the second base respectively, and the guide column can be inserted into the guide hole in a matched mode. The novel anastomosis ring is suitable for acceptor vein anastomosis in a transplantation operation, the anastomosis ring is designed to be oval, the shape of the anastomosis ring is better matched with the actual shape of a blood vessel in the operation, and the operation efficiency is improved. And a guide device is arranged, so that