US Patent Issued to Covidien on Jan. 13 for "Systems and methods for calculating tissue impedance in electrosurgery" (Colorado Inventors)

ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,162, issued on Jan. 13, was assigned to Covidien LP (Mansfield, Mass.).

"Systems and methods for calculating tissue impedance in electrosurgery" was invented by Donald W. Heckel (Thornton, Colo.) and Andrey Belous (Longmont, Colo.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electrosurgical generator and associated methods determine a real part of the impedance of treated tissue. The electrosurgical generator includes an output stage, a plurality of sensors, and a controller that controls the output stage. The controller includes a signal processor that determines an RMS voltage, an RMS current, an average power, and a real part of the impedanc...