Patent ID: 6638274
Filing Date: 2003-10-28
Classification: A61B

Abstract:
A high-frequency coagulation apparatus comprising:a tubular body having an opening portion which is formed in an end portion of the tubular body, and is open in a predetermined direction; a high-frequency electric current generation section for generating a high-frequency electrio current; a first electrode provided on the end portion of the tubular body; a second electrode capable of performing a coagulation treatment on a part to be treated of a living body which is located between the first and second electrodes, in cooperation with the first electrode, when the high-frequency electric current is made to flow between the first and second electrodes; a third electrode provided separate from the tubular body to contact the living body; energizing means for electrically connecting the first and second electrodes to the high-frequency electric current generation section, to thereby cause the high-frequency electric current to flow between the first and second electrodes; a fluid supply section for supplying to the tubular body a fluid which is to be discharged from the opening portion of the tubular body, and is capable of transmitting a high-frequency electric current to be made to flow between the first and third electrode; and a controller for controlling supplying of the fluid from the fluid supply section to the tubular body, and also supplying of the high-frequency electric current from the high-frequency electric current generation section to the first to third electrodes, wherein the controller has a first mode for supplying the high-frequency electric current from the high-frequency current electric current generation section to the first electrode, and also the fluid from the fluid supply section to the tubular body, and making the current flow to the third electrode by using the fluid, and a second mode for supplying the high-frequency electric current generated from the high-frequency electric current generation section to the second electrode through the first electrode, and stopping the supplying of the fluid from the fluid supply section to the tubular body.