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：US20170065296A1

公开(公告)日：2017-03-09

申请号：US15354901

申请日：2016-11-17

Applicant: OLYMPUS CORPORATION

Inventor： Tomohiko MAMIYA

IPC: A61B17/34 ,  A61B10/04

CPC classification number: A61B17/3478 ,  A61B1/00 ,  A61B1/00098 ,  A61B10/02 ,  A61B10/04 ,  A61B17/34 ,  A61B2010/045 ,  A61B2017/3413

Abstract: A puncture needle for an endoscope includes a flexible sheath having a longitudinal axis and deformed to be bent by a raising base, a flexible needle tube having a needle tip and a distal opening section and that is movable in the sheath with respect to the sheath, and a stylet having a distal end surface that is able to advance and retreat in the needle tube and protrude and withdraw from needle tube along the longitudinal axis of the sheath, wherein the stylet retracts the needle tip such that the needle tip of the needle tube is separated from an inner surface of the sheath as the distal end surface of the stylet comes in contact with the inner surface of the sheath formed in the bent shape.

Abstract translation: 一种用于内窥镜的穿刺针具有：具有纵向轴线并变形以通过升高基部弯曲的柔性护套;具有针尖和远端开口部分的柔性针管，其相对于护套在护套中移动; 以及具有能够在针管内前进和后退的前端面的探针，其沿着护套的纵轴从针管突出而退出，其中，管心针缩回针尖，使针管的针尖 当探针的远端表面与形成为弯曲形状的护套的内表面接触时，与护套的内表面分离。

公开(公告)号：US20210177631A1

公开(公告)日：2021-06-17

申请号：US17169935

申请日：2021-02-08

Applicant: OLYMPUS CORPORATION

Inventor： Tomohiko MAMIYA

IPC: A61F2/966 ,  A61F2/95 ,  A61F2/90

Abstract: For the purpose of placing a stent at a position where the digestive tract wall and the bile duct wall are more reliably brought into close contact, provided is a stent delivery device including an inner shaft having a longitudinal axis and a tubular outer sheath through which the inner shaft is inserted so as to be movable along the longitudinal axis, wherein the inner shaft includes a fixing mechanism that fixes a distal-end section of a stent extended in accordance with relative movement of the inner shaft and the outer sheath, to the inner shaft in a releasable manner.

公开(公告)号：US20190321605A1

公开(公告)日：2019-10-24

申请号：US15960673

申请日：2018-04-24

Applicant: OLYMPUS CORPORATION

Inventor： Tomofumi KATAYAMA ,  Rei MATSUNAGA ,  Tomohiko MAMIYA

IPC: A61M27/00

Abstract: A stent delivery method includes: forming through-holes in an alimentary canal wall and a cyst wall so as to communicate with each other; passing a stent through the through-holes and placing a first expandable part in the alimentary canal and a second expandable part in the cyst; allowing the first expandable part to expand to an expanded state in the alimentary canal; and, after the expansion of the first expandable part, allowing the second expandable part to expand in the cyst while the alimentary canal wall is pressed by the first expandable part in the expanded state.

公开(公告)号：US20170079628A1

公开(公告)日：2017-03-23

申请号：US15372252

申请日：2016-12-07

Applicant: OLYMPUS CORPORATION

Inventor： Tomohiko MAMIYA

IPC: A61B10/04 ,  A61B1/04 ,  A61B8/12 ,  A61B10/02 ,  A61B1/00

CPC classification number: A61B10/04 ,  A61B1/00131 ,  A61B1/018 ,  A61B1/04 ,  A61B1/06 ,  A61B8/00 ,  A61B8/12 ,  A61B10/0233 ,  A61B17/3478 ,  A61B2010/045 ,  A61B2017/3413

Abstract: An endoscope puncture needle is provided with: an outer sheath; a needle tube arranged inside the outer sheath; an operation main body; a needle slider; an engaging mechanism; a proximal-end-side inner tube arranged at an inside of a proximal end of the outer sheath; and a distal-end-side inner tube arranged inside a distal end section of the outer sheath and has an inner circumferential surface that is relatively harder than the proximal-end-side inner tube. When the needle slider is engaged to the operation main body, a distal end of the needle tube is arranged inside the distal-end-side inner tube.

公开(公告)号：US20240350290A1

公开(公告)日：2024-10-24

申请号：US18760417

申请日：2024-07-01

Applicant: OLYMPUS CORPORATION

Inventor： Tomohiko MAMIYA

IPC: A61F2/966 ,  A61B17/11 ,  A61F2/90 ,  A61F2/95 ,  A61M27/00

CPC classification number: A61F2/966 ,  A61B17/1114 ,  A61F2/90 ,  A61F2/9522 ,  A61M27/002 ,  A61B2017/1139

Abstract: For the purpose of placing a stent at a position where the digestive tract wall and the bile duct wall are more reliably brought into close contact, provided is a stent delivery device including an inner shaft having a longitudinal axis and a tubular outer sheath through which the inner shaft is inserted so as to be movable along the longitudinal axis, wherein the inner shaft includes a fixing mechanism that fixes a distal-end section of a stent extended in accordance with relative movement of the inner shaft and the outer sheath, to the inner shaft in a releasable manner.

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.

公开(公告)号：US20220370821A1

公开(公告)日：2022-11-24

申请号：US17874426

申请日：2022-07-27

Applicant: OLYMPUS CORPORATION

Inventor： Tomohiko MAMIYA

IPC: A61N5/06 ,  A61B8/12 ,  A61B8/00

Abstract: Provided is a puncture device includes: a needle tube; and a tube that is accommodated within the needle tube, is capable of accommodating an optical fiber, and is composed of a cylindrical optically-transparent material. The needle tube includes a tip member fixed to a distal end of the tube and having a blade surface at a tip thereof, and a base member that is disposed at a position where the base member covers a proximal end of the tube relative to the tip member and that is movable along a longitudinal axis of the needle tube. The base member advances to cause a distal end of the base member to abut on a proximal end of the tip member. The base member retracts to cause the distal end of the base member to move away from the proximal end of the tip member in a direction of the longitudinal axis.

公开(公告)号：US20210023386A1

公开(公告)日：2021-01-28

申请号：US17062790

申请日：2020-10-05

Applicant: OLYMPUS CORPORATION

Inventor： Tomohiko MAMIYA

IPC: A61N5/06 ,  A61B8/12 ,  A61B17/34

Abstract: A phototherapy method includes: introducing an ultrasound endoscope into a digestive tract; visualizing an irradiation target site in a body by means of the ultrasound endoscope introduced into the digestive tract; puncturing a vicinity of the irradiation target site with a distal-end section of a needle tube that is made to protrude from a distal-end section of the ultrasound endoscope introduced into the digestive tract; exposing an optical fiber from the distal-end section of the needle tube that has punctured the vicinity of the irradiation target site, by making the needle tube retreat with respect to the optical fiber accommodated inside the needle tube; and radiating light emitted from the exposed optical fiber onto the irradiation target site.

公开(公告)号：US20210016102A1

公开(公告)日：2021-01-21

申请号：US17060691

申请日：2020-10-01

Applicant: OLYMPUS CORPORATION

Inventor： Tomohiko MAMIYA

IPC: A61N5/06

Abstract: A light-irradiation-device delivery apparatus includes: a metal needle tube having a longitudinal axis, a side hole, which penetrates from an inner circumferential surface to an outer circumferential surface, and a blade surface at a distal end thereof; an optical fiber that is accommodated inside the needle tube, the optical fiber including a core allowing light to propagate, a clad covering an outer circumferential surface of the core, and an emission area provided at a distal-end section of the optical fiber; and a positioning member that positions the emission area between a distal end and a proximal end of the needle tube in the longitudinal-axis direction. The distal end of the optical fiber is positioned in an interior space of the needle tube in a state where the emission area is positioned between the distal end and the proximal end of the side hole.