The present invention relates to a therapeutic device that emits multi-frequency
ultrasound, and more specifically, to a
skin disease treatment device capable of alternately or selectively emitting
ultrasound of
multiple frequency bands within the range of 0.6 MHz to 20 MHz from an
ultrasound transducer when performing
ultrasound treatment using an ultrasound
transducer in contact with the surface of
human skin, particularly the
skin of the face. Unlike
conventional ultrasound transducers that emit only ultrasound of a single
frequency band, a single ultrasound
transducer is used that alternately or selectively emits ultrasound of
multiple frequency bands within the range of 0.6 MHz to 20 MHz. Specifically, a high-frequency generating ultrasound transducer that generates a waveform with a large amplitude and a short period (
high frequency band), a low-frequency generating ultrasound transducer that generates a waveform with a relatively smaller amplitude and longer period than the high-frequency generating ultrasound transducer (
low frequency band), and a medium-frequency generating ultrasound transducer in the
intermediate frequency band can be replaced by a single ultrasound transducer. Since high-frequency, medium-frequency, and low-frequency ultrasounds can be selectively or alternately generated, this device is suitable for specialized
skin hospitals or skin
massage clinics. Since it is possible to perform skin treatment with optimal ultrasound using a minimal number of ultrasound devices without having to equip a business with various types of ultrasound devices, individuals, specialized skin clinics, or specialized skin
massage businesses can minimize the
purchase cost of ultrasound devices and reduce maintenance costs. Additionally, by generating high-frequency, medium-frequency, and low-frequency ultrasounds tailored to the lesions, it can have an excellent effect in treating lesions that have been difficult to treat until now, such as intractable
rosacea and
acne.