Systems, methods and apparatus are provided through which movement of a medical imaging device is detected and the movement is assisted in magnitude by an external force. A calculated value, which is obtained by subtracting a front output power F_POWER and an accessory output power DV_POWER from a battery output power limit B_LimPow is set as an rear output power limit R_LimPow. An adhesive layer whose hardness is lower than the drive axle is used to attach the permanent magnet onto the drive axle. The device is configured to be user wearable through attachment directly to the skin by an adhesive. Further, a method for manufacturing a head for treating the surface of a media is disclosed. , a product or service, that is offered in the advertisement they can initiate a purchase procedure.