公开(公告)号：US20160220301A1

公开(公告)日：2016-08-04

申请号：US15098447

申请日：2016-04-14

Applicant: OLYMPUS CORPORATION

Inventor： Tetsuya YAMAMOTO ,  Fuminori WAKE ,  Shunsuke MOTOSUGI

IPC: A61B18/14

CPC classification number: A61B18/14 ,  A61B1/00133 ,  A61B1/018 ,  A61B18/12 ,  A61B18/1492 ,  A61B2017/00269 ,  A61B2017/00367 ,  A61B2018/00083 ,  A61B2018/00196 ,  A61B2018/00482 ,  A61B2018/00577 ,  A61B2018/00595 ,  A61B2018/00601 ,  A61B2018/00607 ,  A61B2018/00982 ,  A61B2018/1475 ,  A61B2217/007 ,  A61B2218/002

Abstract: Provided is a high-frequency treatment tool including a cylindrical sheath, an electrode member that is made to protrude and be retracted with respect to a distal-end portion of the sheath, and a liquid-feeding unit for feeding a liquid toward the distal-end side inside a flow channel in the sheath, wherein a distal end of the electrode member is provided with a distal-end expanded portion that extends radially outward in a radiating manner and that has a base-end surface that is made to protrude and be retracted with respect to a distal-end portion of the sheath, wherein the sheath is provided with a restricting portion that restricts the movement of the electrode member toward the base-end side at a position at which a portion of the distal-end expanded portion is accommodated inside the sheath and an accommodating portion that can accommodate at least a portion of the distal-end expanded portion.

Abstract translation: 本发明提供一种高频处理工具，其包括圆筒形护套，相对于护套的前端部突出并缩回的电极构件，以及用于将液体朝向远端侧供给的液体供给单元， 所述电极构件的前端设置有以辐射方式径向向外延伸的前端扩张部，并且具有突出的基端面，并且为 相对于护套的前端部缩回，其中，所述护套设置有限制部，其限制所述电极部件朝向所述基端侧的移动，所述限制部在所述前端扩张部的一部分 容纳在护套内部，容纳部分可容纳至少一部分远端扩张部分。

公开(公告)号：US20170245842A1

公开(公告)日：2017-08-31

申请号：US15594911

申请日：2017-05-15

Applicant: OLYMPUS CORPORATION

Inventor： Takashi ITO ,  Shunsuke MOTOSUGI ,  Fuminori WAKE ,  Tetsuya YAMAMOTO

IPC: A61B10/04 ,  A61B1/00 ,  A61B10/06

CPC classification number: A61B10/04 ,  A61B1/00137 ,  A61B1/015 ,  A61B10/06 ,  A61B17/00234 ,  A61B17/32 ,  A61B17/320016 ,  A61B18/149 ,  A61B18/1492 ,  A61B2017/00269 ,  A61B2017/22049 ,  A61B2017/320032 ,  A61B2017/320052 ,  A61B2018/1422 ,  A61B2018/1475 ,  A61B2090/033 ,  A61B2090/034 ,  A61B2090/035 ,  A61B2218/002 ,  A61B2218/007

Abstract: An endoscopic treatment tool includes: a tubular insertion part; a stopper having a through hole and provided at a distal end part of the insertion part; a manipulation wire inserted through the insertion part; a treatment part provided at a distal end part of the manipulation wire and inserted through the through hole; and a restriction member provided closer to a proximal end side than the stopper and connecting the treatment part and the manipulation wire. When the restriction member is pressed against the stopper, the treatment part is locked not to be rotated about an axis of the insertion part with respect to the insertion part, and an opening causing a fluid to flow from an inside of the insertion part to the through hole is formed on an outer peripheral surface of the restriction member.