Patent ID: 6451014
Filing Date: 2002-09-17
Classification: A61B

Abstract:
An electrode device for microwave surgery which allows control of the angle of the electrode thereof comprising:a handpiece provided with a rigid hollow support shaft extending toward a distal end, a movable support provided at the distal end of said support shaft and carrying thereon an electrode for microwave surgery, a microwave coaxial cable which is connected at the proximal end thereof to a microwave coaxial connector and connected within said movable support to corresponding portions of the electrode for microwave surgery, said cable extending through said handpiece and said support shaft, wherein said movable support comprises one or more links surrounding said coaxial cable and longitudinally connected to the distal end of said support shaft, and said movable support can be bent and stretched, in a single plane, between the direction of the longitudinal axis of said support shaft and a direction deflected therefrom, wherein said electrode device further comprises a resilient stiff member fixed at one end thereof to the deflection side of said most distal one of the links composing the movable support and also connected to a control section of said handpiece movable from outside said handpiece, whereby said resilient stiff member can be pulled and pushed back at the proximal end of said handpiece, and said resilient stiff member extends through said support shaft, and wherein said coaxial connector is attached to said handpiece in a manner which allows said connector to shift in the longitudinal direction within a predetermined range so that said connector can follow a longitudinal shift of said coaxial cable resulting from a positional change of said movable support between bent and stretched positions.