Ultrasonic transducer tissue selectivity

An ultrasonic surgical apparatus for performing a surgical procedure at a surgical site, comprising:

• a handpiece;
• at least one drive ceramic disposed in the handpiece, the at least one drive ceramic electrically coupled to at least one controller that selectively generates dynamic output for driving the at least one drive ceramic, wherein the at least one drive ceramic generates corresponding ultrasonic waves in response to being driven by the dynamic output;
• a surgical tip mechanically coupled to the at least one drive ceramic, wherein the surgical tip transmits the ultrasonic waves, generated by the at least one drive ceramic, to the surgical site;
• and
• at least one sense ceramic disposed in the handpiece, the at least one sense ceramic providing a sense electrical output that corresponds to deflection of the surgical tip;
• wherein at each control cycle of a plurality of control cycles, the at least one controller generates the dynamic output at the control cycle based on the sense electrical output at the control cycle and based on controlling an amplitude of the dynamic output in accordance with a corresponding amplitude modification parameter for the control cycle, wherein the corresponding amplitude modification parameter is utilized in controlling the amplitude at the control cycle based on being one of a plurality of amplitude modification parameters stored in association with a currently selected tissue selectivity level.