Provided is an ultrasonic wave generating device including: a housing configured to seal an inside of a cartridge a transducer disposed in the housing and configured to generate ultrasonic waves a rotational force applying unit configured to receive a rotational force from an outside of the housing and perform a rotational motion a conversion unit configured to convert the rotational motion of the rotational force applying unit into a rectilinear motion and provide the rectilinear motion to the transducer and a controlling means configured to control an ultrasonic wave generating operation of the transducer.
