PROBLEM TO BE SOLVED: To provide an endoscope and an endoscope system for performing a suction operation from an adhesion part to intestinal wall, while operating an endoscope with both hands as in a conventional manner.SOLUTION: The endoscope 1 includes: the distal end opening 9 of a treatment implement insertion channel, which is arranged at the distal end of an insertion part 2 and is used also as a suction hole the adhesion part 20 to intestinal wall arranged in the outer circumference of the insertion part 2 a suction unit 18 connected to the distal end opening 9 and the adhesion part 20 to intestinal wall a suction operation changeover part 27 for performing an operation to change-over suction by the distal end opening 9 and adhesion to the intestinal wall by the adhesion part 20. The suction operation changeover part 27 selectively performs changeover between a first suction state where at least the distal end opening 9 communicates with the suction unit 18 and a second suction state where the adhesion part 20 communicates with the suction unit 18.COPYRIGHT: (C)2012,JPO&INPIT【課題】 本発明は、従来と同様に内視鏡を両手で操作しながら、腸壁吸着部からの吸引操作を行うことができる内視鏡と内視鏡システムを提供することである。【解決手段】 挿入部2の先端に設けられた吸引孔を兼ねる処置具挿通チャンネルの先端開口部9と、挿入部2の外周に設けられた腸壁吸着部20と、前記先端開口部9及び腸壁吸着部20と接続されている吸引機18と、前記先端開口部9による吸引及び前記腸壁吸着部20による腸壁の吸着を切り替え操作する吸引操作切り替え部27と、を備えた内視鏡1であって、前記吸引操作切り替え部27は、少なくとも先端開口部9と吸引機18が連通された第1の吸引状態と、腸壁吸着部20と吸引機18が連通された第2の吸引状態と、を選択的に切り替え可能である。【選択図】図4
