Medical apparatus

A medical apparatus including a housing, the medical apparatus comprising:

• a power-supply section disposed in an inside of the medical apparatus;
• a power-supply button provided at an outer face of the housing, the power-supply button operating the power-supply section to be turned on/off as a result of depression of the power-supply button;
• a moving member capable of moving in conjunction with the depression of the power-supply button;
• a switch provided at the power-supply section so as to be in contact with the moving member, the switch switching the power-supply section on/off as a result of the switch being depressed along with movement of the moving member;
• and
• a movement amount adjusting mechanism that upon the depression of the power-supply button, if an amount of movement of the power-supply button exceeds a predetermined movement amount, adjusts an amount of movement of a contact portion of the moving member, the contact portion being in contact with the switch, so that the amount of movement of the contact portion of the moving member becomes smaller relative to the amount of movement of the power-supply button.