Patent ID: 6623481
Filing Date: 2003-09-23
Classification: A61B

Abstract:
An electrosurgical probe, comprising:a cannula having a plurality of holes and a distal end and a proximal end; a plurality of filiform electrodes housed in said cannula and having an elastic memory of an arched shape, the number of said electrodes corresponding to the number of said holes in said cannula and each of said holes having a size to allow passage of a respective one of said electrodes therethrough; and a control rod movably arranged in said cannula and having a distal end and a proximal end, said electrodes being fixed to said distal end of said control rod and having a free end extending toward said proximal end of said cannula when housed in said cannula, each of said electrodes being arranged to move rearward in said cannula to pass through a respective one of said holes in said cannula and then to arch forward toward said distal end of said cannula upon pulling said proximal end of said control rod in a rearward direction such that the movement of said electrodes in said cannula and the direction of pulling of said control rod are in the same rearward direction.