US Patent 12102378 Electrosurgical handpiece with accurate tissue sensing

Systems described herein include a two-tip handpiece that delivers current from two sources at two different frequencies. Signals at different frequencies are absorbed differently in the body. Accordingly, both monopolar and bipolar systems using this two-tip handpiece and dual-frequency signal can detect impedance (or other frequency-dependent characteristics) of the target tissue at the tips while delivering treatment, which was not possible or practical using conventional systems.