WO2009005275A3 - Bending section for endoscope - Google Patents

Abstract

A bending device for an endoscope having a camera mounted on one end for photographing the inside of a human body, a machine, a pipe and the like is provided. For flexible bending with the smallest external diameter and the largest extended internal diameter and free selection of bending directions, the bending device includes a plurality of cylindrical axial pipes (10a) to (10d) having an internal hole (11) and a pair of connection pins (12) protruded from opposite upper outer surfaces; and a plurality of bending pipes (20a) to (20d) having insertion holes (21) into which the axial pipes (10a) to (10d) are inserted, and a pair of connection rings (22) formed on a lower end and extending downward to rotatably engage with the connection pins (12) of the axial pipes (10a) to (10d), wherein the respective axial pipes (10a) to (10d) are inserted into and coupled with the respective insertion holes (21) and the respective connection pins (12) are sequentially engaged with the respective connection rings (22), resulting in a bending connection (10, 20), and a camera (30) is coupled to one end of the bending connection (10, 20). Thus, sufficient promptness, convenience, and flexibility for inside photographing can be achieved.