The ornamental design for a portableecographymachine, as shown and described.
FIG. 1 is a front-right side view of a portable ecography machine showing our new design, the portable ecography machine having a probe coupled thereto and of a cradle for support thereof;
FIG. 2 is a right side-front perspective view of the portable ecography machine of FIG. 1;
FIG. 3 is a rear-left side perspective view the portable ecography machine of FIG. 1;
FIG. 4 is a front-right side perspective view the portable ecography machine of FIG. 1, showing removability of the handle portion in one mode of employment; and,
FIG. 5 is a front-right side perspective view of the portable ecography machine of FIG. 1 without the cradle in another mode of employment by a clinician.
The broken lines connecting the centers of the separated components of the ecography machine in FIG. 4 are included to show the order of assembly. The broken lines in FIG. 5 represent the environmental subject matter. None of the broken lines form a part of the claimed design.