A kind of multi-compartment syringe unit (1) includes ontology (2), separating element (3) and bypass arrangement (26). The distal side (23) of main body (2), the proximal end of side (22) side (23) opposite with the distal end, one minimum limit, ontology (22) centrally are passed through from distal end to the side (23) of proximal lateral in distal side (23) and proximal end face (22) and longitudinal axis (27) by side wall (21). Resolution element (3) setting forms end room (24) in distal side (23) and resolution element (3) in body interior (2), and proximal chamber (25) is in proximal lateral (22) and resolution element (3). By-pass collar (26 260 268 It 269) is a part of (2) that wherein there is body interior constant non-circular cross section (261) to be orthogonal to longitudinal axis (27). Multi-cambered surface syringe unit (1) is efficiently to prepare and allow efficiently to provide or manage to add bakelite bits panel products quality high.
