Patent ID: 7070596
Filing Date: 2006-07-04
Classification: A61B

Abstract:
1. A medical apparatus comprising a shaft including a shaft distal end portion and a shaft proximal end portion, the shaft distal end portion including at least one active electrode disposed thereon and having a shape comprising at least one curve proximal to the at least one active electrode, wherein the at least one curve comprises a first curve and a second curve proximal to the first curve, and the shaft distal end portion is adapted to be resilient such that upon the application of an external force the shape distorts, whereupon removal of the force the shape restores; further including an introducer needle having a needle lumen, the needle lumen adapted for passing the shaft distal end portion therethrough, wherein the shaft distal end portion includes a distal linear portion, the active electrode includes an electrode head located terminally at a distal tip of the shaft, the first curve is characterized by a first angle and the second curve is characterized by a second angle, wherein a transverse location of the electrode head within the needle lumen is determined by the first angle and by a length of the distal linear portion.