公开(公告)号：US20230200804A1

公开(公告)日：2023-06-29

申请号：US18178195

申请日：2023-03-03

Applicant: OLYMPUS CORPORATION

Inventor： Yuta HAYASHI ,  Masatoshi TONOMURA ,  Kunihide KAJI

IPC: A61B17/04

CPC classification number: A61B17/0469 ,  A61B2017/0496

Abstract: A traction tool for performing traction of suture thread under a flexible endoscope is provided. The tool includes a shaft, a first holder which is provided at a distal end of the shaft and is configured to hold the suture thread or a suture needle attached to the suture thread, and second holder which is provided closer to a proximal end side of the shaft than the first holder and to which the suture thread is hooked. The second holder is expandable in a radial direction of the shaft.

公开(公告)号：US20220218330A1

公开(公告)日：2022-07-14

申请号：US17683771

申请日：2022-03-01

Applicant: OLYMPUS CORPORATION

Inventor： Kosuke OKA ,  Masatoshi TONOMURA ,  Kunihide KAJI

IPC: A61B17/062 ,  A61B17/04

Abstract: A needle holder includes a sheath, a grasper capable of grasping a target object, an operation portion capable of opening and closing the grasper, and an operation wire. The operation portion includes a main body, a slider, and an elastic member that is elastically deformable depending on an opening and closing position of the grasper. The slider is connected to the grasper via the operation wire. The grasper can release grasping of the target object and can grasp the target object with a first grasping force in response to an operation of moving the slider against a restoring force of the elastic member. The grasper can grasp the target object with a second grasping force smaller than the first grasping force when the restoring force of the elastic member and tension of the operation wire are balanced.

公开(公告)号：US20210000475A1

公开(公告)日：2021-01-07

申请号：US17022168

申请日：2020-09-16

Applicant: OLYMPUS CORPORATION

Inventor： Risako HORIKOSHI ,  Nobuko MATSUO ,  Masatoshi TONOMURA

IPC: A61B17/122 ,  A61B17/29

Abstract: A clip unit includes: an arm portion including arms extending from a proximal end portion to a distal end portion so as to be openable and closeable; a holder than can hold the arms in a closed state by accommodating the proximal end portion of the arm portion; and a thread grip attached to at least one of the arms and positioned between the arms. In a state where the arms are spread open, a dimension of the thread grip in the opening/closing direction of the arms is equal to or larger than a distance between the arms in the closed state. The thread can be elastically deformed in the closed state.

公开(公告)号：US20230200806A1

公开(公告)日：2023-06-29

申请号：US18179037

申请日：2023-03-06

Applicant: Olympus Corporation

Inventor： Hiroyuki MORISHITA ,  Kunihide KAJI ,  Keita OZAWA ,  Tsutomu OKADA ,  Masatoshi TONOMURA ,  Nobuko MATSUO ,  Kosuke OKA

IPC: A61B17/04

CPC classification number: A61B17/0469 ,  A61B17/0483

Abstract: A traction tool for performing traction, of a suture thread under a flexible endoscope is provided. The traction toot includes a first holder configured to hold the suture thread or a suture needle attached to the suture thread; a second holder having an engaging surface configured to engage the suture, thread such that the suture thread is capable of advancing and retracting and configured to release an engagement with the suture thread; and a guide member holding the first holder and the second holder such that the first holder and the second holder are relatively movable.

公开(公告)号：US20190021708A1

公开(公告)日：2019-01-24

申请号：US16144042

申请日：2018-09-27

Applicant: OLYMPUS CORPORATION

Inventor： Hirofumi ETO ,  Yasuhiko KIKUCHI ,  Katsuji UEMICHI ,  Masatoshi TONOMURA ,  Jin HIRAOKA

IPC: A61B10/04 ,  A61B10/02

Abstract: An endoscopic treatment tool includes a sheath; a treatment portion capable of protruding and retracting from a distal end of the sheath; a manipulation main body; a slider which advances and retracts in a longitudinal axis direction to cause the treatment portion to protrude and retract from the sheath; a first locking mechanism which locks the slider at a position at which the distal end of the treatment portion is accommodated in the sheath in accordance with a retracting manipulation of the slider; a second locking mechanism provided at further distal side than the first locking mechanism and restricts advance of the slider by being locked to the manipulation main body; a fixing mechanism provided in the second locking mechanism and fixed to the manipulation main body by sliding; and a restricting portion which restricts fixing of the fixing mechanism to the manipulation main body.