Physician certificate, practice certificate, professional title certificate, and cosmetology qualification certificate. Ultrasound scalpels belong to medical beauty institutions. All medical practitioners engaged in beauty operations in a formal plastic surgery institution need to have four certificates, including physician certificate, practice certificate, professional title certificate, and cosmetology qualification certificate. Ultrasonic scalpel uses ultrasonic principles to cut the internal tissues of the human body like a real knife. It uses the extremely strong penetrating power of ultrasonic waves to emit hundreds of beams of high-energy ultrasonic waves through an ultrasonic transmitter.