Treatment instrument system

A treatment system configured to apply energy to biological tissues as fusion targets and give a treatment to the biological tissues, comprising:

• an energy source which is configured to generate high-frequency energy and thermal energy;
• an insertion portion which includes a distal end portion, a proximal end portion, and a longitudinal direction defined by the distal end portion and the proximal end portion, and which is extended from the proximal end portion toward the distal end portion along the longitudinal direction;
• a first jaw which is provided at the distal end portion of the insertion portion and includes a first holding surface;
• a second jaw which is provided at the distal end portion of the insertion portion, and which includes a second holding surface that faces the first holding surface and that is configured to hold the biological tissues as the fusion targets in cooperation with the first holding surface;
• an absorbent member which is arranged to be discharged into the biological tissues as the fusion targets from the first jaw through the first holding surface, thermally deformed when the thermal energy is applied thereto, and configured to be absorbed into the biological tissues as the fusion targets with time while being arranged in the biological tissues as the fusion targets;
• a first energy discharge portion which is slidably provided on the first holding surface along the longitudinal direction, which is configured to discharge the absorbent member toward the second holding surface through the first holding member when it slides along the longitudinal direction, and which is configured to supply the high-frequency energy and the thermal energy to the biological tissues;
• a second energy discharge portion which is provided on the second holding surface, which is configured to come into contact with at least a part of the absorbent member when the absorbent member is discharged, and which is configured to supply the high-frequency energy and the thermal energy to the biological tissues;
• and
• a control unit which is configured to control the energy source to enable application of the high-frequency energy and the thermal energy to the biological tissues as the fusion targets in the mentioned order through at least one of the first energy discharge portion and the second energy discharge portion, and which is configured to control the energy source to supply the thermal energy after discharging the absorbent member to the biological tissues.