Endoscopic treatment tool

An endoscopic treatment tool, comprising:

• a sheath extending in a longitudinal direction;
• a distal end member having insulation and the distal end member provided at a distal end of the sheath and having a through-hole penetrating in the longitudinal direction;
• an electrode having a first conduit extending in the longitudinal direction and the electrode being configured to advance and retract into the through-hole;
• and
• a rod extending in the longitudinal direction and arranged in at least a part of the first conduit, wherein the rod includes:
• a support column part extending in the longitudinal direction;
• and
• a distal end part provided on a distal end side of the support column part and having an outer diameter larger than that of the support column part, wherein the distal end part is configured to move distally relative to a distal end opening of the first conduit.

An endoscopic treatment tool, comprising:

• a sheath extending in a longitudinal direction;
• a distal end member having insulation and the distal end member provided at a distal end of the sheath and having a through-hole penetrating in the longitudinal direction;
• an electrode having a first conduit extending in the longitudinal direction and the electrode being configured to advance and retract into the through-hole;
• a rod extending in the longitudinal direction and configured to be arranged in at least a part of the first conduit, wherein the rod includes a plug that seals a distal end opening of the first conduit;
• a hollow operation wire having a second conduit communicating with the first conduit in the longitudinal direction, wherein the hollow operation wire includes a distal end connected to the electrode;
• and
• an operation unit configured to advance and retract the hollow operation wire in the longitudinal direction.