A device enabling food bolus flow between two stomas, said device having a pump forming means (3), said pump forming means (3) having an entry opening and an exit opening and being suitable for sucking food bolus through said entry opening and releasing it through said exit opening. The device further includes: —first watertight connection means (11) suitable for connecting said entry opening to a upstream stoma (S1) located on a patient's abdominal wall; —second watertight connection means (1) suitable for connecting said exit opening to a downstream stoma (S2), located on said patient's abdominal wall; said pump forming means being able to be activated by a user and suitable for being mounted on a patient's body, particularly on said patient's abdomen, in such a manner that once said device is mounted onto said patient's abdomen, food bolus flow can circulate from said upstream stoma (S1) to said downstream stoma (S2) outside of said patient's abdomen.