Patent ID: 8463356

Claim:
An ultrasonic therapy system adapted to reduce electromagnetic interference to an imaging device, said system comprising an imaging device, an ultrasonic therapy device and an electric control unit; wherein the ultrasonic therapy device comprises an ultrasonic therapy applicator and its movement positioning unit, and in said movement positioning unit, there is one or more driving motors to control the movement of the ultrasonic therapy applicator; wherein each driving motor is disposed beyond an area in which the electromagnetic waves of the driving motors can bring electromagnetic interference to the imaging device; wherein each driving motor is connected to the ultrasonic therapy applicator through a gearing unit; an outer shell of each driving motor is covered by a motor shielding cover, which shields the electromagnetic waves, and wherein a cutoff wave-guide pipe, which brings attenuation of electromagnetic waves, is arranged on an output shaft of each driving motor and is connected to the motor shielding cover at one end and is grounded; said movement positioning unit further comprises an X-board and the ultrasonic therapy applicator is placed on the X-board; a driving motor is connected to the X-board through an X-gearing unit, and the driving motor is the X-driving motor to drive the X-board to move in X-direction; said movement positioning unit further comprises a Y-board and a Y-driving motor which is used to drive the Y-board to move in a Y-direction; with said X-board placed on the Y-board, and a Y-driving motor is connected to the Y-board through a Y-gearing unit; and said movement positioning unit further comprises a Z-board and a Z-driving motor which is used to drive the Z-board to move in a Z-direction; with said Y-board placed on the Z-board, and a Z-driving motor is connected to the Z-board through a Z-gearing unit.