Abstract: The device for establishing anastomoses comprises a hollow housing (1), telescopically interconnected an outer sleeve (2) and an inner sleeve (3), both of said sleeves communicating with the hollow housing (1) through respective openings (4, 5) in their bottoms, an elastic ring (6) situated on the portion of the outside surface of the inner sleeve (3) that extends from the outer sleeve 2, a first bushing (7) having two annular grooves (11, 12) for anastomosis formation and adapted for one organ (9) being anastomosed to be fixed on said bushing, a second bushing (8) having an annular groove (13) for securing there on the other organ (10) being anastomosed, and a probe (14) passing through the interior spaces of the bushings (7, 8), the sleeves (2, 3) and the housing (1) and having a shoulder (16) for the first bushing (7) to rest upon.