An endoscopic device includes a longitudinal shaft member having a lumen, a curved section formed at a distal portion of the longitudinal shaft member and having a first recovering force, and a guide section formed at a proximal end portion of the curved section of the longitudinal shaft member and having a second recovering force. The curved section has an opening section in communication with the lumen at a surface of an inner section of the curved shape recovered by the first recovering force, and a pressing surface configured to press a tissue by the second recovering force is formed at a surface of an outer section of the curved shape of the curved section opposite to the opening section.
