Electrode device for blocking or controlling nerves in body

An electrode device for nerve denervation or modulation in vivo, comprising:

• a main body including a shaft;
• an electrode unit formed to be drawn out from one end of the shaft and configured to denervate or modulate at least some of nerves on a tube in the body;
• an electrode guide including a plurality of joint units and a wire connecting the plurality of joint units to each other and configured to guide the electrode unit;
• and
• a driving unit located inside the main body and configured to drive the joint units and the wire to protrude from the one end of the shaft,
• wherein the driving unit includes:
• a rod block of which one end is connected to the joint units and which is moveable in forward and backward directions;
• a wire block configured to support the wire and which is moveable in the forward and backward directions;
• and
• a variable connection unit configured to connect the rod block and the wire block to each other and vary a distance between the rod block and the wire block when the rod block and the wire block move in the forward and backward directions,
• wherein a distance between the rod block and the wire block increases when the rod block moves in the forward direction and decreases when the rod block moves in the backward direction, and
• wherein an increase in the distance between the rod block and the wire block causes the wire to be pulled so as to bend the plurality of joint units and provide a force for winding the plurality of joint units around the tube.