Illustrated and described is an anastomotic device (1 ) for forming anastomoses, in particular of intestine anastomoses, with an introducer sheath (2) for insertion into a body lumen, wherein a thrust bearing part (6) is provided for the head section (3) and within the head section (3) an extendable and retractable knife (7) and a retaining pin (8) are arranged. According to the invention at least the actuating part (4) and the head section (3) of inter- connected fluid supply channel (16) and at the head section (3) at least one fluid outlet (17) connected with the fluid supply channel (16) are provided for producing a fluidic connection between the actuating part (4) and the head section (3) while inserting the head section (3) into the body lumen and/or when pushing the introducer sheath (2) into the body lumen, in which the fluidic connection is configured for discharging an inflation liquid (19) into the body lumen.
