Treatment tool and treatment tool system

A treatment tool system comprising:

• a treatment tool comprising:
• a cylindrical tube;
• an introducing tool configured to be attached to an opening formed in an abdominal wall, the cylindrical tube being inserted in the introducing tool;
• a treatment instrument which is disposed at a distal end of the cylindrical tube and used for performing a treatment;
• a treatment assisting instrument which is disposed at the distal end of the cylindrical tube and has a grasper configured to assist an operation of the treatment instrument during the treatment, the grasper being capable of moving between a first position near the treatment instrument and a second position moved from the first position in a direction which intersects a longitudinal axis of the cylindrical tube to be spaced a part from the treatment instrument;
• a motor configured to move the grasper of the treatment assisting instrument;
• and
• an operating device which is disposed at a proximal end of the cylindrical tube;
• and
• a controller configured to:
• receive a detection result from a sensor of the treatment tool, the detection result indicates an amount of movement of the cylindrical tube with respect to the introducing tool and an orientation of the cylindrical tube;
• receive an input from an input device of the treatment tool;
• operate a first mode to control the motor based on the input received from the input device of the treatment tool,
• operate a second mode to control the motor based on the detection result received from the sensor of the treatment tool;
• and
• switch between the first mode and the second mode based on a state of a switch of the treatment tool.