The ornamental design for mobile biopsy positioner, as shown and described.
FIG. 1 is a front perspective view of a mobile biopsy positioner showing our new design;
FIG. 2 is another perspective view of the mobile biopsy positioner shown in an alternate position with broken line environment; and,
FIG. 3 is another perspective view of the mobile biopsy positioner shown in another alternate position.
The broken lines in the drawing views are included for the purpose of illustrating portions of the mobile biopsy positioner that form no part of the claimed design.