To provide a medical device capable of eliminating collisions, etc., between two or more connectors set on the end parts of two or more cords in transportation, etc., and preventing damage or failure.

A universal cord 7 extended from the scope main body of a video scope 1 with a slender inserting part 3 is branched at a branch part 8 into an optical cord 9 and a signal cord 11, and an optical connector 10 is set on the end of the optical cord 9 and a signal connector 12 on the end of the signal cord 11. In this case, the length of the signal cord 11 and that of the optical cord 9 are made different to prevent collision between the optical connector 10 and the signal connector 12 to cause damage or failure.