ENDOSCOPE INSERT PART, ENDOSCOPE, AND ENDOSCOPE SYSTEM

摘要

The present invention is an endoscope system (1) comprising an endoscope (2) provided with a distal end inserted into a subject body and a proximal end having a site capable of being held by a physician and provided with an endoscope insertion unit having a first flexible portion (6a) arranged on the distal end thereof and a second flexible portion (6b) coupled to the proximal end of the first flexible portion and provided with a site having an outer diameter larger than a site having the maximum outer diameter of the first flexible portion; and an endoscope insertion assisting device (20), in which the inner diameter of a distal opening of an insertion hole (20a) through which the endoscope insertion unit is inserted is substantially equal to the outer diameter of the second flexible portion.