Patent ID: 7819865
Filing Date: 2010-10-26
Classification: A61B

Abstract:
1. An electrosurgical system, comprising: a generator adapted to generate electrosurgical energy for treating tissue, the generator including at least one active output terminal that supplies energy to the tissue, the at least one active output terminal operatively connected to at least one supply line, the generator also including at least one return output terminal that returns energy from the tissue, the at least one return output terminal operatively connected to at least one return line; an electrosurgical instrument operatively connected to the at least one supply line; at least one return electrode operatively connected to the at least one return line; and an electrosurgical cable including the at least one supply line and the at least one return line, a portion of the at least one supply line and the at least one return line being wound in a double helix fashion such that the electrical field along the cable is mitigated along the length thereof, wherein an apex distance between an apex of a first helix and a nearest apex of a second helix is about half a distance between two apexes of the same helix and the first and second helices are disposed a predetermined distance apart as a function of the apex distance, wherein at least one parameter of the wound portion of the cable and at least one parameter of an unwound portion of the cable are optimized to control inductive and capacitive components of the electrosurgical cable and reduce capacitive leakage due to RF radiation.