1. Field of the Invention
The present invention relates to an endoscope including a nozzle at a distal end portion of an insertion portion.
2. Description of the Related Art
For example, Jpn. Pat. Appln. KOKAI Publication No. 2000-83891 discloses an air supply/water supply nozzle which is attachable to/detachable from a distal end portion of an insertion portion. The nozzle is fixed to the distal end portion of the insertion portion by heating a resin material through the nozzle and fusing the resin material with respect to the distal end portion of the insertion portion and then cooling and solidifying the fused resin material.