The ornamental design for a fingertippulseoximeter, as shown and described.
FIG. 1 is a first perspective view of a fingertip pulse oximeter showing my design;
FIG. 2 is a second perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a back view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a top view thereof; and,
FIG. 8 is a bottom view thereof.
The broken lines shown in the drawings depict portions of the fingertip pulse oximeter in which the design is embodied that form no part of the claimed design.