公开(公告)号：US20180140812A1

公开(公告)日：2018-05-24

申请号：US15874608

申请日：2018-01-18

Applicant: OLYMPUS CORPORATION

Inventor： Koji ONISHI ,  Masaru YUASA ,  Koji MIYAKE ,  Norichika FUKUSHIMA ,  Shunsuke MIYAUCHI

IPC: A61M29/02 ,  A61M25/06 ,  A61M25/10

CPC classification number: A61M29/02 ,  A61M25/0102 ,  A61M25/0108 ,  A61M25/0662 ,  A61M25/1002 ,  A61M25/10182 ,  A61M25/10184 ,  A61M2025/0186 ,  A61M2025/1004 ,  A61M2025/1059 ,  A61M2025/1079 ,  A61M2205/3344 ,  A61M2205/583 ,  A61M2210/105

Abstract: A treatment tool for an endoscope of the present invention includes a sheath, a balloon provided at the sheath and configured to be expandable to an inflated state from a reduced diameter state by injecting a fluid, a shaft member inserted through an inside of the balloon and configured to extend along a longitudinal axis of the sheath from a distal end of the balloon to a proximal end thereof, and an adhering portion provided on a side of an inner surface of a central portion of the balloon in a direction of the longitudinal axis, formed of an adhering material applied or adhered to the shaft member and configured to hold the central portion in a state in which the central portion is reduced in diameter.

公开(公告)号：US20180153536A1

公开(公告)日：2018-06-07

申请号：US15875707

申请日：2018-01-19

Applicant: OLYMPUS CORPORATION

Inventor： Koji ONISHI ,  Koji MIYAKE ,  Norichika FUKUSHIMA ,  Masaru YUASA

IPC: A61B17/00 ,  A61B1/018 ,  A61B17/12

CPC classification number: A61B17/00234 ,  A61B1/00 ,  A61B1/018 ,  A61B17/12136 ,  A61B2017/0034 ,  A61B2090/376 ,  A61B2090/3937 ,  A61B2090/3966 ,  A61M25/10 ,  A61M2025/1004

Abstract: A treatment instrument for an endoscope is equipped with a sheath; and a balloon which is provided at the sheath, the balloon being configured to be expandable to an unfolded inflated shape from a folded initial shape by supplying a fluid, the balloon having a first region and a second region provided at both end portions in a longitudinal direction, and an intermediate section provided between the first region and the second region. In the initial shape of the balloon, an amount of residual strain of the intermediate section is larger than the amount of residual strain of the first region and the amount of residual strain of the second region. When an internal pressure of the balloon has a first internal pressure value, the first region and the second region are unfolded to be faster than the intermediate section, thereby having a greater diameter than the intermediate section.