2001-128990 is referenced by 814 patents.

PROBLEM TO BE SOLVED: To provide an electrosurgical instrument and an electrosurgical tool converter capable of limiting the supply of energy to a place of a requesting tissue without giving an excessive damage to the tissue. SOLUTION: This electrosurgical instrument has coaxial inner and outer cylindrical members 1, 2 formed of conductive material to constitute a coaxial transmission line. The inner member 1 is preferably formed to have such dimension as to receive an abdominal operation instrument with operating element of a tool projecting over the distal end 1D of the inner member 1. The inner member 1 itself may contain an operating member at the distal end. The outer member 2 is connected to the inner member 1 in a place distant from the distal end 1D of the inner member 1, and at the distal end side of a connecting point 7 between the inner and outer members, a radio frequency(r, f) feeder 4 is connected to the inner member 1. Serial impedance between both the connecting points (4), 7 is formed by the inner member 1 between the connecting points, or formed by the operational frequency of an instrument having a radio frequency(r, f) separation structure related to the inner member.

Electro surgical instrument and electrosurgical tool converter
Application Number
Publication Number
Application Date
May 26, 2000
Publication Date
May 15, 2001
Goble Colin Charles Owen
Amoah Francis
Penny Keith
Gyrus Medical
A61B 17/32
A61B 17/28
A61B 18/12