The invention relates to the related technical field of
medical instruments, in particular to a
contrast injection device for enhancing
nuclear magnetic resonance, which comprises a base, a mounting shell arranged at the upper part of the base, a first
barrel arranged at the left upper part in the mounting shell, a second
barrel arranged at the right upper part in the mounting shell, and a mixing
barrel arranged in the middle of the upper part of the mounting shell, a first
piston rod is arranged in the first barrel, a second
piston rod is arranged in the second barrel, communicating pipes are respectively communicated between the first barrel and the mixing barrel and between the second barrel and the mixing barrel, a one-way water inlet
pipe is arranged at the top of the barrel, and the one-way water inlet
pipe is communicated with an
external liquid storage tank. By rotating the adjusting screw rod, the adjusting screw rod drives the first wedge-shaped block to move to the position of the needed dosage, then the rodless air cylinder controls the
extrusion plate to move upwards, and after the
extrusion plate moves upwards and makes contact with the plate body, the
piston rods move upwards to inject the contrast agent and normal
saline of the corresponding dosage into the mixing barrel to be mixed.