Insertion assisting tool for endoscope

An insertion assisting tool for an endoscope comprising:

• a flexible tubular body having an endoscope insertion passage;
• a distal end opening provided at a distal end of the flexible tubular body in a longitudinal axis direction of the flexible tubular body, the distal end opening from which an insertion part of the endoscope inserted into the endoscope insertion passage can be led out;
• a notch formed in a sidewall of the flexible tubular body, the notch being a sidewall opening from which the insertion part of the endoscope inserted into the endoscope insertion passage can be led out;
• and
• a flexible flap integral with the sidewall of the flexible tubular body via a living hinge and having a shape which is complementary with the notch,
• wherein one end of the flexible flap is connected to the flexible tubular body and another end of the flexible flap is a free end,
• the flexible flap is deformable between a guide state where the flap guides the endoscope insertion part to the sidewall opening part and a retracted state where the flexible flap is retracted from the guide state, and
• further comprising a manipulating wire configured to manipulate the flexible flap to be deformed between the guide state and the retracted state.