The ornamental design for a suctioncobbperiostealelevator, as shown and described.
FIG. 1 is a first perspective view of a suction cobb periosteal elevator showing my new design;
FIG. 2 is a second perspective view thereof;
FIG. 3 is a first side view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a second side view thereof;
FIG. 6 is a front view thereof;
FIG. 7 is a top view thereof; and,
FIG. 8 is a bottom view thereof.
The broken lines shown in the views are included for the purpose of illustrating portions of the suction cobb periosteal elevator that form no part of the claimed design.