| 摘要 |
<p>An endoscope includes an elongated insertion portion 5 inserted in a subject; a bending portion 10 including an independently bendable first bending part 11 and a second bending part 13 bendable together with the first bending part 11 in the same direction as a bending direction of the first bending part 11; a flexible tube portion 15; a first wire 20 inserted through the insertion portion 5 and having a distal end fixed to a distal end of the first bending part 11; a first guide pipe 21 through which the first wire 20 is inserted so as to be advanceable/retractable with respect to an insertion direction S, which has a distal end fixed between the bending portion 10 and the flexible tube portion 15; a second wire 30 inserted in the insertion portion 5 and having a distal end fixed between the first and second bending parts 11, 13, which causes the second bending part 13 to be rigid when pulled.</p> |
