Medical fluid injection device

FIG. 1 is a perspective view of the medical fluid injection device;

FIG. 2 is a front elevation view of the medical fluid injection device;

FIG. 3 is a rear elevation view of the medical fluid injection device;

FIG. 4 is a left side elevation view of the medical fluid injection device;

FIG. 5 is a right side elevation view of the medical fluid injection device;

FIG. 6 is a top plan view of medical fluid injection device; and,

FIG. 7 is a bottom plan view of the medical fluid injection device.

The features shown in broken lines depict environmental structure only and form no part of the claimed design.