The ornamental design for a portableultrasounddevice, as shown and described.
FIG. 1 is a front perspective view of a portable ultrasound device, showing our new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a left side elevation view thereof;
FIG. 6 is a right side elevation view thereof;
FIG. 7 is a rear elevation view thereof;
FIG. 8 is a front perspective view of the portable ultrasound device shown in condition of use with the keyboard in the open position and the display screen in a vertical position; and,
FIG. 9 is another front perspective view of the portable ultrasound device shown in condition of use with the keyboard in the open position and the display screen in an angled position.
The broken lines immediately adjacent the shaded areas represent the bounds of the claimed design, while all other broken lines are directed to environment and are for illustrative purposes only; the broken lines form no part of the claimed design.