Patent 7426415 was granted and assigned to Erbe Elektromedizin on September, 2008 by the United States Patent and Trademark Office.
In previously known neutral electrodes which are used in HF surgery, at least some portions comprise electrically conductive, stretchable, and flexible areas made of textile material, these areas being brought into contact with a body section of a patient. According to the invention, such an area is embodied as a stocking, tube, or similar anatomically shaped thromboembolism-preventing envelope, whereby secure contact of the neutral electrode is ensured without requiring any additional device.