Osmotic eels were sometimes employed in the process of cauterization. In 2151, Doctor Phlox sedated an injured Jonathan Archer while the eel cauterized his wound. (ENT: "Broken Bow") In 2152, Phlox told a crewman he would have to wait for the eel to cauterize his wound as several patients were ahead of him in line, or, as Phlox put it, the eel was "getting quite a workout today." (ENT: "Minefield") In 2368, Beverly Crusher instructed a medic to use a tool to cauterize the tissue of an injured member of the USS Denver's crew. (TNG: "Ethics" )