High-frequency coagulation apparatus

A high-frequency coagulation apparatus comprising:

• a tubular body having at an end thereof an opening portion which opens in a predetermined direction;
• a high-frequency electric current generation section for generating a high-frequency electric current;
• a first electrode exposed and provided at an end portion of said tubular body;
• a second electrode capable of performing a coagulation treatment at a part to be treated of a living body positioned between said first electrode and said second electrode in cooperation with said first electrode by causing said high-frequency electric current to flow between said first electrode and said second electrode;
• energizing means for electrically connecting said first and second electrodes with said high-frequency electric current generation section so as to cause said high-frequency electric current to flow between said first electrode and said second electrode;
• a fluid supply section for supplying to said tubular body a fluid which is discharged from said opening portion of said tubular body and can transmit said high-frequency electric current supplied to said first electrode to said part to be treated of said living body;
• and
• a controller for controlling supply of said fluid from said fluid supply portion to said tubular body and controlling supply of said high-frequency electric current from said high-frequency electric current generation section to said first and second electrodes,
• wherein said controller has a first mode for supplying a high-frequency electric current from said high-frequency electric current generation section to said first electrode and supplying said fluid from said fluid supply section to said tubular body, and a second mode for supplying said high-frequency electric current from said high-frequency electric current generation section to at least either said first electrode or said second electrode and interrupting supply of said fluid from said fluid supply section to said tubular body.