CPC A61B 1/0008 (2013.01) [A61B 1/00135 (2013.01)] | 20 Claims |
1. An endoscope comprising:
an insertion portion configured to be inserted into a subject, the insertion portion comprising a groove recessed relative to an outer circumferential surface of the insertion portion;
wherein the groove having an inclination surface at least at a proximal end of the groove;
the inclination surface being inclined in a longitudinal direction of the insertion portion such that the proximal end of the inclination surface terminates at the outer circumferential surface; and
the groove having a distal portion configured to fix at least a portion of a cross-sectional shape of a channel tube.
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