A Dynamic Impedance Matching System based on Phase Difference Detection for Ultrasonic Generator in Focused Ultrasound Surgery

Focused ultrasound surgery (FUS) has been widely used as a non-invasive treatment for solid tumors and metastatic diseases. Ultrasonic generator is one of the critical parts in FUS therapy system. In order to realize real-time impedance matching of the ultrasonic generator and improve its energy transmission efficiency, a novel dynamic impedance matching system is designed and tested in this study...