ALEXANDRIA, Va., March 17 -- United States Patent no. 12,575,876, issued on March 17, was assigned to ERBE Elektromedizin GmbH (Tuebingen, Germany).

"Device for tissue treatment and method for electrode positioning" was invented by Sandra Keller (Bisingen, Germany), Kathrin Hahn (Nuertingen, Germany) and Bjoern Seitz (Pfullingen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "An instrument (14) is suitable for treatment of lung tumors and other tissues and a respective apparatus (15) detects the correct positioning of instrument (14) and its two electrodes (19, 20) in a suitable target tissue by observation of two parameters (G1, G2) and particularly their time-dependent change. If the change (V1, V2...