公开(公告)号：US20180279858A1

公开(公告)日：2018-10-04

申请号：US16002286

申请日：2018-06-07

Applicant: OLYMPUS CORPORATION

Inventor： Fuminori WAKE ,  Yuki HOSHINO ,  Seiko HAMADA

IPC: A61B1/00 ,  A61B1/018 ,  A61B17/00

Abstract: A treatment instrument insertion tool includes a tubular treatment instrument guide portion, configured to guide a treatment instrument into an insertion portion of an insertion device via a treatment instrument insertion port, a guide portion body freely attachably/detachably provided in a region of the insertion portion located outside a subject when the insertion portion is inserted into the subject, and a film member including a hole that allows insertion of the treatment instrument, water-tightly engaging with the treatment instrument when the treatment instrument is inserted into the hole, and being formed of a material freely expandable/contractible and restricting permeation of a liquid.