公开(公告)号：US20220175387A1

公开(公告)日：2022-06-09

申请号：US17678395

申请日：2022-02-23

Applicant: OLYMPUS CORPORATION

Inventor： Tomohiro TSUJI ,  Kensuke UESAKA ,  Shinya ANSAI

IPC: A61B17/128 ,  A61B17/122

Abstract: A ligation device includes a first arm, a second arm, a holding tube, an operation wire, a sheath, and a link mechanism having a first link and a second link which are connected to each other and engage the holding tube with the sheath, wherein the link mechanism is configured to be switch between a disengaged configuration in which engagement between the holding tube and the sheath is released and an engaged configuration in which the holding tube is engaged with the sheath due to the operation wire.

公开(公告)号：US20210315585A1

公开(公告)日：2021-10-14

申请号：US17358180

申请日：2021-06-25

Applicant: OLYMPUS CORPORATION

Inventor： Tomohiro TSUJI ,  Kensuke UESAKA ,  Shinya ANSAI

IPC: A61B17/128 ,  A61B17/122

Abstract: A ligation device includes a first arm, a second arm, a holding tube, an operation wire, a sheath, and a link mechanism having a first link and a second link which are connected to each other and engage the holding tube with the sheath, wherein the link mechanism is configured to be switch between a disengaged configuration in which engagement between the holding tube and the sheath is released and an engaged configuration in which the holding tube is engaged with the sheath due to the operation wire.

公开(公告)号：US20190133597A1

公开(公告)日：2019-05-09

申请号：US16236692

申请日：2018-12-31

Applicant: OLYMPUS CORPORATION

Inventor： Shingo OSAKA ,  Tomohiro TSUJI ,  Tomohiko MAMIYA

IPC: A61B17/128

Abstract: An endoscope treatment tool includes: a sheath; a clip unit; a biasing member arranged between a distal end part of the sheath and the clip unit; and a first rotation preventing part capable of preventing the clip unit from rotating relative to the distal end part of the sheath about a longitudinal axis. The clip unit includes: a clip body; a holding tube; and a second rotation preventing part capable of preventing the clip body from rotating relative to the holding tubes about the longitudinal axis. The biasing member biases the holding tube so as to separate from the distal end part of the sheath. When a proximal end part of the holding tube comes into contact with the distal end part of the sheath against the biasing force of the biasing member, the first rotation preventing part prevents the relative rotation of the clip unit.

公开(公告)号：US20210267602A1

公开(公告)日：2021-09-02

申请号：US17313252

申请日：2021-05-06

Applicant: OLYMPUS CORPORATION

Inventor： Tomohiro TSUJI ,  Kensuke UESAKA ,  Yuya HIDAKA ,  Naoki FUJIKAWA ,  Akane YASUKAWA ,  Naoki TAKIZAWA

IPC: A61B17/122 ,  A61B17/00

Abstract: Provided is an endoscope clip and an operation method for a clip. The clip includes a clip arm that is configured to be transitioned between a first, second and third configurations. The clip includes a slider to operate the clip arm to be transitioned between the configurations, and a limiter configured to restrict movement of the slider so as to restrict the transition of the clip arm from one configuration to another of the configurations.

公开(公告)号：US20170215886A1

公开(公告)日：2017-08-03

申请号：US15490334

申请日：2017-04-18

Applicant: OLYMPUS CORPORATION

Inventor： Yuta MUYARI ,  Tomohiro TSUJI

IPC: A61B17/128 ,  A61B17/122

Abstract: A clip device of the present invention includes: a restraining tube having an insertion passage; first and second arm parts that are inserted into the insertion passage to protrude from a distal end of the restraining tube; an operation wire that is connected to the first arm part and retreats the first arm part with respect to the restraining tube; and a movement adjustment mechanism that retreats the second arm part along with the retreat of the first arm part when the operation wire is operated for retreat by a predetermined amount.

公开(公告)号：US20190104926A1

公开(公告)日：2019-04-11

申请号：US16216643

申请日：2018-12-11

Applicant: OLYMPUS CORPORATION

Inventor： Shingo OSAKA ,  Tomohiro TSUJI ,  Tomohiko MAMIYA

IPC: A61B1/00 ,  A61B17/122 ,  A61B1/005 ,  A61B1/018

Abstract: An endoscope treatment tool includes: a tubular sheath part; an operation wire; an arm member; a holding tube; and a biasing member. The sheath part includes an elongated body part, and a tubular member. In a state where the holding tube and the tubular member are in contact with each other, the holding tube and the tubular member are connected to each other so as not to be rotated relative to each other about an axis and to be movable relative to each other in a direction in which a central axis of the sheath part extends. The arm member and the holding tube have a rotation restricting structure that prevents the arm member from rotating about an axis of the holding tube in a state where the arm member is in contact with the holding tube against the biasing force of the biasing member.

公开(公告)号：US20240407789A1

公开(公告)日：2024-12-12

申请号：US18811918

申请日：2024-08-22

Applicant: OLYMPUS CORPORATION

Inventor： Tomohiro TSUJI ,  Kensuke UESAKA ,  Yuya HIDAKA ,  Naoki FUJIKAWA ,  Akane YASUKAWA ,  Naoki TAKIZAWA

IPC: A61B17/122 ,  A61B17/00

Abstract: Provided is an endoscope clip. The clip includes an arm having a first arm and a second arm, the arm configured to be transitioned between a first configuration in which the first arm and the second arm are separated from each other by a first amount and a second configuration in which the first arm and the second arm are separated from each other by a second amount larger than the first amount. The clip includes a slider to operate the arm to be transitioned between the configurations, and a limiter configured to restrict movement of the slider so as to restrict the transition of the arm from one configuration to another of the configurations.

公开(公告)号：US20210236134A1

公开(公告)日：2021-08-05

申请号：US17235687

申请日：2021-04-20

Applicant: OLYMPUS CORPORATION

Inventor： Tomohiro TSUJI

IPC: A61B17/128 ,  A61B17/122

Abstract: An endoscope clip has a clip unit having an arm member configured from a plurality of arms; an operation wire connected to the arm member and configured to move toward a distal end side to cause the arm member to transition from a closed configuration to an open configuration; and a restrictor, wherein the clip unit applies a biasing force to the operation wire toward the distal end side when the arm member is in the closed configuration, and when the arm member is in the closed configuration, the restrictor is configured to restrict the arm member from transitioning from the closed configuration to the open configuration by applying a force being opposite to the biasing force to the operation wire to restrict the movement of the operation wire toward the distal end side.

公开(公告)号：US20200093497A1

公开(公告)日：2020-03-26

申请号：US16699196

申请日：2019-11-29

Applicant: OLYMPUS CORPORATION

Inventor： Yuta MUYARI ,  Tomohiro TSUJI

IPC: A61B17/128 ,  A61B17/122

Abstract: A clip device includes a restraining tube having an insertion passage with a first arm part and a second arm part facing each other and disposed within the insertion passage and configured to protrude from the restraining tube. The clip device further includes an operation wire configured to move the first arm part. A first stopper is engaged to the first arm part and a second stopper is engaged to the second arm part. The first stopper is disposed in a region closer to a distal end of the restraining tube than the second stopper. The first stopper is configured to, in response to the operation wire moving from the distal end of the restraining tube to a proximal end of the restraining tube, move relative to the second stopper, contact the second stopper, and move in contact with the second stopper.

公开(公告)号：US20190133598A1

公开(公告)日：2019-05-09

申请号：US16236706

申请日：2018-12-31

Applicant: OLYMPUS CORPORATION

Inventor： Kensuke UESAKA ,  Yuta MUYARI ,  Tomohiro TSUJI ,  Tomohiko MAMIYA

IPC: A61B17/128

Abstract: An endoscopic surgical device that includes: a sheath; a manipulator; a manipulation wire; a clip body having a pair of arms, connected to a distal end of the manipulation wire, and configured to be capable of advancing and retracting in accordance with manipulation of the manipulator along with a longitudinal axis of the manipulation wire; a holding tube into which a proximal portion of the clip body is inserted to be capable of advancing and retracting; and a biasing member configured to hold a position of the manipulation wire at an initial position. The clip body is nonrotatable around the longitudinal axis at the initial position. When the manipulation wire is advanced a prescribed amount against a biasing force of the biasing member, the clip body is rotatable around the longitudinal axis, and is allowed adjustment of an opening-closing direction of the pair of arms.