Device for injecting fluid for medical use

Device for injecting a fluid for medical use, characterized in that it is comprised of a support (1) in which a container (2) for receiving the fluid to be injected is arranged, said container being formed of a body (6) made a of deformable material, having the shape of a bellows in order to be capable of being axially compressed and including a top surface (4) comprising a tip (7) through which the fluid passes, whereas the support (1) is comprised of a bottom wall (16) enabling the guiding of the rod of a piston (3) movable in axial translation, and of a top wall (11), characterized in that

• the tip (7) is engaged in a suitable arrangement (12), (13) of the top wall (11) of the support,
• the top surface (4) and the bottom wall (16) have the shape of a cone, whereas the enclosure (6) of the container (2) is comprised of circular rings, and the shape of the piston (3) is complementary to the shape of the housing (8) of the bottom wall (5), such that when the bellows is completely collapsed on itself after injection, the enclosure is empty, with no residual liquid.