panel application_number US 44224403 A description hereinbelow embodiments of the present invention will be described with reference to the drawings 0017 fig1 and 2 show an ultrasonic operating apparatus according to the first embodiment of the present invention fig1 is a block diagram schematically showing the system structure of the ultrasonic operating apparatus 1 and 0018 fig2 is a flowchart showing an example of a control operation characterized by a control portion in the ultrasonic operating apparatus 1 referring to fig1 the ultrasonic operating apparatus 1 according to the first embodiment comprises an apparatus main body 2 as a main apparatus of the ultrasonic operating apparatus 1 and the apparatus main body 2 comprises a control portion 2 b for systematically controlling the ultrasonic operating apparatus 1 and a vibration driving circuit 2 a further the apparatus main body 2 comprises an operating and display panel 3 a pinch valve 4 a water supply pump 5 and connectors 6 and 7 on an outer surface thereof the operating and display panel 3 has an integral arrangement of a display member such as an lcd and an operating button sets various processing displays the type of a selected operation and an operating state and performs various operations a plug of a hand piece 8 is detachably connected to the connector 6 and a driving signal from the vibration driving circuit 2 a is transmitted to the hand piece 8 via the connector 6 a foot switch 9 detachably connected to the connector 7 controls the operation of the driving signal in this case an arbitrary number of switches 9 a are provided to the foot switch 9 in accordance with the necessary output operation a foot easily operates the switches by.