ENDOSCOPE AID AND ENDOSCOPE
FIG11 is a perspective view of another modification example of the endoscope aid of FIG4
In the example illustrated in FIG11, projections 113 are provided around the distal-end-side opening of the suction pipe line 108. The distal-end-side opening of the suction pipe line 108 is provided in the distal end surface 106A of the extending part 106 of the tubular member 101, and is directed to the axial direction of the distal end part of the tubular member 101. For example, in a case where the distal-end-side opening of the suction pipe line 108 is disposed in the vicinity of the treatment target part that is bleeding and blood is suctioned, there is a case where the treatment target part sticks to the distal-end-side opening of the suction pipe line 108. However, as the projections 113 are provided around the distal-end-side opening of the suction pipe line 108, the sticking of the treatment target part is suppressed. This allows stable suction through the suction pipe line 108. The number of projections 113 is not particularly limited, may be one or plural.
perspective view
103
distal end part
11
operating part
113
projections
20
light guide
104
smaller-diameter part
105
sliding contact part
112
tubular projection tubular projections
101
tubular member
10
insertion part
108
suction pipe line
106
extending part
107
['1. An endoscope aid attachably and detachably attached to a treatment tool insertion channel of an endoscope, the endoscope aid comprising: a flexible tubular member longer than a total length of the treatment tool insertion channel, wherein the tubular member has a treatment tool insertion pipe line that extends from a proximal end part of the tubular member disposed on an inlet side of the treatment tool insertion channel to a distal end part of the tubular member, and a suction pipe line that is provided separately from the treatment tool insertion pipe line, wherein the distal end part of the tubular member has a sliding contact part that has an outer periphery coming in sliding contact with an inner peripheral surface of an outlet portion of the treatment tool insertion channel maintained in the shape of a straight pipe irrespective of bending of an endoscope bending part and is disposed in the outlet portion, and an extending part that extends from the sliding contact part to a distal end side and is disposed to protrude from an outlet of the treatment tool insertion channel, and wherein a distal-end-side opening of the suction pipe line is provided in the extending part.', '2. The endoscope aid according to claim 1, wherein a suction tube of the endoscope joins the treatment tool insertion channel, wherein the other portion excluding the distal end part of the tubular member is a smaller-diameter part thinner than the distal end part, and wherein a proximal-end-side opening of the suction pipe line is connected to a gap formed between an inner peripheral surface of the treatment tool insertion channel and an outer peripheral surface of the smaller-diameter part.', '3. The endoscope aid according to claim 2, wherein the outer periphery of the sliding contact part is formed by one or more annular projections provided on an outer peripheral surface of the sliding contact part.']