Endoscope system

An endoscope system comprising:

• a first device and a second device each comprising:
• an insertion section having an elongated shape configured to be inserted into a subject,
• an operation section disposed on a proximal end side of the insertion section, and
• an operator protruding from a surface of the operation section along an axis which intersects with a longitudinal axis of the insertion section;
• and
• a fixing member configured to connect and fix the first device and the second device to each other, wherein:
• the fixing member comprising a first fitting portion that protrudes from an outer surface of the operation section of the second device, the first fitting portion having a U shape protruding from the outer surface of the operation section of the second device, one end of the U shape is attached to the second device and an other end of the U shape has a convex portion protruding away from the second device;
• the fixing member further comprising a second fitting portion, the second fitting portion comprising a concave portion disposed on the first device, the convex portion being configured to fit in the concave portion to fix the second device to the first device;
• the fixing member is configured to separate the first and second devices from each other by an amount greater than or equal to a protrusion amount of the operator of the second device;
• and
• the fixing member is configured to fix the first device and the second device together so that, when the first device is connected and fixed to the second device, the operator of the first device protrudes toward the operation section of the second device, the operator of the second device protrudes toward the operation section of the first device and the operator of the second device is separated from the operator of the first device longitudinally toward the insertion section of the first device.