Surgical treatment apparatus

A surgical treatment apparatus comprising:

• a treatment portion unit including a treatment portion that performs treatment on a living tissue;
• at least one operation portion provided in the treatment portion unit, the at least one operation portion being a pushable member that is movable in a radial direction relative to a central axis of the treatment portion unit between an unpressed position and a pressed position in response to an operation of an operator;
• a detection subject portion provided in the at least one operation portion;
• a gripping portion provided separately from the treatment portion unit, the gripping portion being detachable and attachable relative to the treatment portion unit;
• a non-contact type detection portion provided in the gripping portion and separated from the at least one operation portion, the detection portion being configured to detect an operation of the detection subject portion in accordance with whether the at least one operation portion is in the unpressed position or the pressed position;
• an energy supply portion provided within the gripping portion, the energy supply portion supplying energy to the treatment portion;
• and
• a driving device connected to the gripping portion, the driving device supplying energy to the energy supply portion in accordance with a detection result of the detection portion,
• wherein the detection portion is positioned to face the detection subject portion in the radial direction relative to the central axis of the treatment portion unit so that, when the treatment portion unit is attached to the gripping portion, the detection subject portion is within a range of being able to be detected by the detection portion.