The ornamental design for a medicaldevice, as shown and described.
FIG. 1 is a left side perspective view of a medical device of the present invention.
FIG. 2 is a right side perspective view of the medical device of FIG. 1.
FIG. 3 is a top perspective view of the medical device of FIG. 1.
FIG. 4 is a bottom perspective view of the medical device of FIG. 1.
FIG. 5 is a front perspective view of the medical device of FIG. 1.
FIG. 6 is a rear perspective view of the medical device of FIG. 1; and,
FIG. 7 is a three-quarter perspective view of the medical device of FIG. 1.
The broken line showing of the connector is directed to environment and is for illustrative purposes only; the broken lines form no part of the claimed design.