Although ultrasound is a diagnostic imaging device, the working principle and imaging technology of ultrasound is a combination of sound waves and light wave technology. The sound waves generated by ultrasound are ultrasound, which is a sound wave with a frequency higher than the frequency of the sound heard by people’s ears. When the ultrasound produced by the ultrasound diagnostic equipment into the human body, the body’s tissues and organs of the formation of reflected waves, return to the ultrasound diagnostic equipment. And then through the ultrasound diagnostic instrument within the high-energy electronic computer, sound energy and light energy energy conversion after the formation of images, to be used for ultrasound diagnosis.