A medical device of the present invention includes input unit for inputting prescribing information prescribed by a doctor for an examined patient, treatment unit for carrying out a treatment operation based on the prescribing information, and driving unit mounted to the treatment unit and controlling treatment unit to be in an operable state. Input unit, treatment unit and driving unit are configured to be separable from each other. By providing treatment unit in which prescribing information has been input and driving unit separately, a treatment operation can be carried out at a desired place. Thus, a medical device, with which the patient him/herself is able to carry out the prescribed treatment operation at a predetermined place such as the patients home, is achieved.