Patent ID: 11877726
Assignee: FUJIFILM CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A

Claim 9:
10. An endoscope aid to be attachably and detachably attached to a treatment tool insertion channel of an endoscope where a suction tube joins, the endoscope aid comprising:
a flexible tubular member having a length equal to or larger than a length ranging from at least an inlet-side end part of an outlet portion of the treatment tool insertion channel, which is maintained in a shape of a straight pipe regardless of bending of a bending part of the endoscope, to an inlet of the treatment tool insertion channel,
wherein the tubular member includes
a distal end part that has an outer periphery in sliding contact with an inner peripheral surface of the outlet portion of the treatment tool insertion channel and is disposed at the outlet portion, and
a communication part that allows an outlet of the treatment tool insertion channel and the suction tube to communicate with each other,
wherein a portion of the tubular member other than the distal end part is a smaller-diameter part thinner than the distal end part,
the communication part has a through-hole that penetrates the distal end part in an axial direction, and
the through-hole 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.