Ultrasonic scalpel is to focus high-intensity ultrasound on the end of the knife through the horn, and use the strong vibration of the knife to cut soft tissues such as human body or animals. Clinically, this method is used to remove the tumor of human soft tissue. The cut tumor group can be washed and sucked out, and the surrounding blood vessels and nerves are not easy to be damaged. Therefore, it is known as bloodless scalpel.
The current of the host machine of the ultrasonic scalpel system is transmitted to the handle, and the piezoelectric ceramic sheet in the handle is activated to work. The ceramic sheet converts electrical energy into mechanical energy, generating longitudinal mechanical vibration and expanding at the node of the transmission axis. The vibration is transmitted to the bite of the scalpel head to reach the maximum vibration of 55.5khz. The scalpel head contacts tissue protein, breaks protein hydrogen bond and reorganizes protein structure, and the protein solidifies to close the small lumen. The protein is vibrated to produce secondary energy, which can deeply coagulate and close the larger lumen, so as to cut and coagulate the tissue and stop bleeding. Compared with scalpel, electric scalpel, laser scalpel and other instruments, ultrasonic scalpel has unique advantages.
At present, ultrasonic scalpel is mainly used in phacoemulsification, ultrasonic orthopedic surgery, ultrasonic surgical suction, ultrasonic hemostasis, ultrasonic extracorporeal stone crushing, high-intensity ultrasound focusing surgery, etc. The main function of BBT ultrasonic scalpel is ultrasonic hemostasis and cutting lesions.