ELEKTROCHIRURGISCHE VORRICHTUNG FÜR DIE LAPROSKOPIE UND ÄHNLICHE VERFAHREN

摘要

A safety shield for use in laparoscopic or like electrosurgical procedures where the shield surrounds the active electrode and extends from a trocar or the like to the field of view of the surgical procedure. The shield is connected to the return lead via a low impedance path which includes monitor circuitry for determining whether the shield current is associated with an abnormal condition.