Patent ID: 8500735

Claim:
A treatment method for a living tissue using energy comprising: a first step of holding the living tissue with a pair of holding members; a second step of intermittently outputting high-frequency energy from a high-frequency electrode of the holding members to the living tissue, destroying cell membranes of the living tissue to discharge proteins outside cells of the living tissue and welding the proteins to each other; a third step of detecting biological information indicating a state of dehydration of the living tissue with a first detector; and a fourth step of applying heat energy from a heater of the holding members to the living tissue and dehydrating the living tissue, wherein the heater includes a plurality of discrete heater members, which are arranged on a back surface of the high-frequency electrode without contacting the living tissue, when the living tissue is held between the holding members wherein the method comprises: setting a setting value including at least one of a temperature and a time in regard to the heater by a setting portion; and controlling, by a control section, the electrode to intermittently output the high-frequency energy in order to dehydrate the living tissue and then stop outputting the high-frequency energy and thereafter controlling, by the control section, the heater to apply the heat energy to the living tissue in accordance with a detection result by the first detector, in order to further dehydrate the living tissue which has been subjected to the high-frequency energy by the heat energy and then stop applying the heat energy, based on the setting value set by the setting portion.