公开(公告)号：EP3482706A1

公开(公告)日：2019-05-15

申请号：EP16908148.6

申请日：2016-07-06

申请人： Olympus Corporation

发明人： FUKUSHIMA Norichika ,  ONISHI Koji ,  MIYAUCHI Shunsuke ,  YUASA Masaru ,  NITTA Satoshi

IPC分类号： A61B17/94 ,  A61M25/10

摘要： A treatment tool for an endoscope includes: a sheath; a balloon provided at a distal end of the sheath, formed of a film of a transparent material, and configured to be expandable from a folded initial shape to an unfolded inflated shape; an inner shaft configured to protrude from a distal end of the balloon through an inside of the balloon; a middle marker configured to indicate a middle position of the balloon in a direction of a length of the balloon; and at least one or more positioning markers provided on the inner shaft independently of the middle marker and configured to be visible through the film of the balloon. The balloon has a proximal end-side region, a distal end-side region, and a middle part that is provided between the proximal end-side region and the distal end-side region. The positioning marker positioned at a most distal end is provided at a position corresponding to a predetermined range close to a proximal end from a boundary between the middle part and the proximal end-side region at a side closer to the proximal end than the middle part in a direction of a longitudinal axis of the inner shaft.

公开(公告)号：EP3326678A1

公开(公告)日：2018-05-30

申请号：EP16827497.5

申请日：2016-05-17

申请人： Olympus Corporation

发明人： ONISHI Koji ,  YUASA Masaru ,  MIYAKE Koji ,  FUKUSHIMA Norichika ,  MIYAUCHI Shunsuke

IPC分类号： A61M25/10

CPC分类号： A61M29/02 ,  A61M25/0102 ,  A61M25/0108 ,  A61M25/0662 ,  A61M25/10 ,  A61M25/1002 ,  A61M25/10182 ,  A61M25/10184 ,  A61M2025/1004 ,  A61M2205/3344 ,  A61M2205/583 ,  A61M2210/105

摘要： A treatment tool for an endoscope of the present invention includes a sheath, a balloon provided at a distal end of the sheath and configured to be expandable to an inflated state from a reduced diameter state by injecting a fluid, and an adhering portion provided on a side of an inner surface of a central portion of the balloon in a direction of a longitudinal axis of the sheath and configured to hold the central portion in a reduced diameter state, wherein the balloon is configured so that, when the fluid is injected and an internal pressure of the balloon is equal to or lower than a first internal pressure, sticking of the central portion and the adhering portion is held, and only a distal end portion located on a distal end side from the central portion, and a proximal end portion located on a proximal end side from the central portion inflate, and when the internal pressure of the balloon is higher than the first internal pressure, the adhering portion is peeled off and the central portion inflates.

公开(公告)号：EP3329959B1

公开(公告)日：2020-08-26

申请号：EP16830123.2

申请日：2016-05-11

申请人： Olympus Corporation

发明人： ONISHI Koji ,  MIYAKE Koji ,  FUKUSHIMA Norichika ,  YUASA Masaru

IPC分类号： A61M25/10 ,  A61M25/098 ,  A61B1/018 ,  A61B17/00

公开(公告)号：EP3329959A1

公开(公告)日：2018-06-06

申请号：EP16830123.2

申请日：2016-05-11

申请人： Olympus Corporation

发明人： ONISHI Koji ,  MIYAKE Koji ,  FUKUSHIMA Norichika ,  YUASA Masaru

IPC分类号： A61M25/10 ,  A61B1/00 ,  A61M25/098

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

摘要： A treatment instrument for an endoscope is equipped with a sheath; and a balloon which is provided at a distal end of 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 state 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. When the internal pressure of the balloon has a second internal pressure value greater than the first internal pressure value, the first region, the second region, and the intermediate section are unfolded to have the inflated shape, and the diameter of the intermediate section and the diameters of the first region and the second region are substantially the same.