The invention provides an anastomosis device for joining together hollow lumens or viscera, the device being suitable for being deployed at the surface of two superposed adjacent lumens, said device comprising a main tubular body of longitudinal axis (L), having first and second open ends and opposite outside and inside faces, said main tubular body comprising at least three columns of loops and at least three rows of loops. In characteristic manner, said tubular body further comprises sets of proximal and distal radial projections extending from said tubular body along at least a depth (E) at the peripheries of said first and second ends respectively, said distal and proximal sets being spaced apart by a minimum internal distance (D), and further comprises a set of intermediate radial projections extending from said body along at most a depth (e) and arranged between the sets of proximal and distal radial projections, in that (e) is less than (E), and in that the minimum internal distance (D) is determined so as to receive two superposed adjacent lumens.
