ALEXANDRIA, Va., March 31 -- United States Patent no. 12,588,941, issued on March 31, was assigned to Erbe Elektromedizin GmbH (Tuebingen, Germany).

"Electrosurgical instrument" was invented by Marc Mueller (Nagold, Germany), Achim Brodbeck (Metzingen, Germany) and Frederik Kleber (Wannweil, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "Instruments having a hood that defines and surrounds a flow chamber. The flow chamber can serve for suction of emissions that are produced due to influence of an electrode supplied with high frequency voltage on biological tissue. For elimination of tissue deposition and other clogging from the flow chamber the electrode is surrounded by a movable hood that can be tr...