A prosthetic device for creating a vascular bypass from an arterial vessel has at least one prosthetic tube joined to an orifice of a flexible collar. The prosthetic tube extends from an outer face of the collar. The collar has an inner face surface for attachment to the arterial vessel. The collar has a connection zone has an annular cavity extending around and away from the orifice. The annular cavity is suitable for receiving an injected glue or bioabsorable haemostatic product so as to attach to the arterial vessel.
