ENDOSCOPE

PURPOSE:To make an endoscope have stiffness for resisting a pushing force, ensure proper torque transmission characteristics at an oscillation section and enable a three- dimensional field of view to be secured by applying the constitution wherein a metal flat braid is externally coupled onto a metal plate dense coil and a resin cover layer is further externally coupled thereto, and inserting an oscillation traction wire of bare state directly in a tubular body at the flat dense coil. CONSTITUTION:The tubular body 7 of the portion of a physical insertion section 2 except an oscillation section 3 is constituted of a metal plate dense coil 12, a metal flat braid 13 covering the aforesaid coil 12 and a resin cover layer 14 concealing the aforesaid braid 13. As a result, slip resistance between the coil 12 and the braid 13 becomes a pertinent value, and torque can be properly transmitted from operation hands to the tubular body 7 of a physical insertion section 2, thereby enabling a field of view of three-dimension to be maintained, aided by the oscillation operation of the oscillation section 3. An oscillation traction wire 5 is kept bare in the second tubular body 7, and in direct slidable contact with the inner side of the plate dense coil 12. A tubular body inner layer, therefore, can resist a compression force generated when the traction wire 5 is strongly pulled by hands.