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：US20220071609A1

公开(公告)日：2022-03-10

申请号：US17526650

申请日：2021-11-15

Applicant: OLYMPUS CORPORATION

Inventor： Miho TSUBOTA ,  Hirofumi ETO ,  Shuntaro HATTORI ,  Hiroyuki MORISHITA

IPC: A61B10/04 ,  A61B10/02

Abstract: An endoscope puncture needle including a tubular portion that includes first and second needle tip portions at a distal end thereof. The first needle tip portion includes a first needle tip at a distal end, and first and second blade surfaces extending towards the first needle tip. The second needle tip portion includes a second needle tip at a distal end, and third and fourth blade surfaces extending towards the second needle tip. The first blade surface and the third blade surface face in directions approaching each other, and the second blade surface and the fourth blade surface face in directions approaching each other.

公开(公告)号：US20190076283A1

公开(公告)日：2019-03-14

申请号：US15704198

申请日：2017-09-14

Applicant: OLYMPUS CORPORATION

Inventor： Takuya OKUMURA ,  Shunsuke MOTOSUGI ,  Yoshie AIKAWA ,  Hiroyuki MORISHITA

IPC: A61F5/00 ,  A61B1/273 ,  A61B18/14 ,  A61M25/00

Abstract: A gastrointestinal tract constricting method according to the present invention aims to constrict the gastrointestinal tract by contracting a desired region of the gastrointestinal tract by a simple and low-invasive procedure. The method includes forming spreading blocks while observing the gastrointestinal tract with an endoscope inserted into the gastrointestinal tract, the spreading blocks being formed at a position between a mucosa layer and a muscle layer and on both sides of a target region, which is to be damaged by a substance, in a circumferential direction of the gastrointestinal tract so that the spreading blocks block spreading of the substance in the circumferential direction of the gastrointestinal tract to prevent spreading of the substance to an outer side of the target region, and supplying the substance to a mucosal surface of the target region or to the position between the mucosa layer and the muscle layer after formation of the spreading blocks.

公开(公告)号：US20180317945A1

公开(公告)日：2018-11-08

申请号：US16037000

申请日：2018-07-17

Applicant: OLYMPUS CORPORATION

Inventor： Tsutomu OKADA ,  Hiroyuki MORISHITA

IPC: A61B17/221 ,  A61B1/00

CPC classification number: A61B17/221 ,  A61B1/00085 ,  A61B1/00087 ,  A61B1/00133 ,  A61B2017/0034 ,  A61B2017/2217

Abstract: An endoscope treatment tool includes: a sheath having a lumen; a basket section protruding from the lumen and having an elastic wire; and an operating wire. The elastic wire has: a maximum section where the outer diameter of the basket section is largest of the elastic wire; a first section that, in a lateral view from a direction orthogonal to a normal from the maximum section to the central axis of the basket section, is largest on the opposite side of the central axis from the maximum section between the maximum section and the proximal end; and a second section that is largest at a position away from the normal between the maximum section and the first section, and in the front view, the first section is located on the opposite side of a straight line orthogonal to the normal at the central axis from the maximum section side.

公开(公告)号：US20190269494A1

公开(公告)日：2019-09-05

申请号：US15911237

申请日：2018-03-05

Applicant: OLYMPUS CORPORATION

Inventor： Takuya OKUMURA ,  Shunsuke MOTOSUGI ,  Shinji TAKAHASHI ,  Takayuki HATANAKA ,  Hiroyuki MORISHITA

IPC: A61F2/04 ,  A61B1/273

Abstract: A gastrointestinal-tract constricting method includes, while observing the gastrointestinal tract by inserting an endoscope into the gastrointestinal tract, forming a spreading block that blocks infiltration of a substance, which damages a mucosa basal layer of the gastrointestinal tract, into the muscular layer underlying the mucosa basal layer, the spreading block being formed along a circumferential direction of the gastrointestinal tract and between the mucosa basal layer and the muscular layer; and supplying the substance along the circumferential direction of the gastrointestinal tract and to a surface of the mucosa that lies within a region that overlaps an inner side of the gastrointestinal tract with respect to the spreading block out of the entire circumference of the gastrointestinal tract in a transverse section of the gastrointestinal tract.

公开(公告)号：US20250161086A1

公开(公告)日：2025-05-22

申请号：US19027869

申请日：2025-01-17

Applicant: OLYMPUS CORPORATION

Inventor： Takuya OKUMURA ,  Shunsuke MOTOSUGI ,  Shinji TAKAHASHI ,  Hiroyuki MORISHITA

IPC: A61F2/958 ,  A61B17/00 ,  A61B17/12 ,  A61B90/00 ,  A61M25/10

Abstract: A drug supply device includes: a tube body; a first expansion member configured to be expanded to a first outer diameter and a second expansion member configured to be expanded to a second outer diameter that is greater than the first outer diameter, the first expansion member and the second expansion member being positioned on a distal-end side of the tube body; and a masking member that extends between the expansion members and that is connected to outer surfaces of the expansion members at two ends thereof. The tube body includes an outlet that opens between the expansion members and a channel that is in communication with the outlet, the masking member is formed in an arc shape in a lateral cross-section that is orthogonal to the longitudinal axis, and the masking member stretches between the expansion members in a state in which the expansion members are expanded.

公开(公告)号：US20160331454A1

公开(公告)日：2016-11-17

申请号：US15223888

申请日：2016-07-29

Applicant: OLYMPUS CORPORATION

Inventor： Tsukasa KOBAYASHI ,  Yuji SAKAMOTO ,  Hiroyuki MORISHITA

IPC: A61B18/14

CPC classification number: A61B18/1492 ,  A61B1/0014 ,  A61B2017/00318 ,  A61B2018/00494 ,  A61B2018/00601 ,  A61B2018/00607 ,  A61B2018/00982 ,  A61B2018/144

Abstract: A treatment tool for an endoscope, includes a sheath which has a center axis along a longitudinal axis; a pre-curved portion which is disposed at a distal portion of the sheath; a knife wire lumen which has a center axis and is formed along the longitudinal axis; a cutting portion which protrudes from an outer circumference surface positioned at an inward side of the curved shape to outside of the pre-curved portion and extends from a distal end portion toward a proximal end portion of the pre-curved portion; a guide wire accommodation portion which is formed along the longitudinal axis of the sheath; a proximal slit formation portion which is communicated from the guide wire accommodation portion to the outside of the sheath; and a distal slit formation portion which is extended from the proximal end of the pre-curved portion to an intermediate portion of the pre-curved portion.

Abstract translation: 一种用于内窥镜的治疗工具，包括具有沿着纵向轴线的中心轴线的护套; 设置在护套的远端部分的预弯曲部分; 具有中心轴线并沿着纵向轴线形成的刀线管腔; 切割部，其从位于所述弯曲部的内侧的外周面向所述预弯曲部的外侧突出，并且从所述预弯曲部的前端部朝向所述基端部延伸; 沿着护套的纵向轴线形成的导丝容纳部分; 近端狭缝形成部，其从所述导丝收容部连通到所述鞘的外部; 以及远端狭缝形成部，其从所述预弯曲部的近端延伸到所述预弯曲部的中间部。

公开(公告)号：US20240299025A1

公开(公告)日：2024-09-12

申请号：US18654196

申请日：2024-05-03

Applicant: OLYMPUS CORPORATION

Inventor： Masatoshi SATO ,  Hiroyuki MORISHITA ,  Keisei SHIMODA ,  Takayuki HATANAKA ,  Masaya OTA ,  Kei MATSUOKA

IPC: A61B17/062 ,  A61B17/00 ,  A61B17/06

CPC classification number: A61B17/062 ,  A61B2017/00296 ,  A61B2017/0608

Abstract: A needle holder for holding a curved needle to which a suture thread is connected. The needle holder includes a flexible tube; and a grasper provided at a distal end of the flexible tube. The grasper includes a first jaw having a groove, and a protrusion at a distal end portion of the first jaw; and a second jaw movably connected to the first jaw. The grasper can hold the curved needle between the second jaw and the protrusion of the first jaw, and can hold a part of the suture thread between a surface of the groove and the second jaw such that another part of the suture thread passes through a gap formed between another surface of the groove and the second jaw. The protrusion has a hook surface for hooking the suture thread extending outside the groove.

公开(公告)号：US20190298476A1

公开(公告)日：2019-10-03

申请号：US15942617

申请日：2018-04-02

Applicant: OLYMPUS CORPORATION

Inventor： Takuya OKUMURA ,  Shunsuke MOTOSUGI ,  Hiroyuki MORISHITA

IPC: A61B90/00 ,  A61B17/00 ,  A61B1/273 ,  A61B17/34 ,  A61K31/728 ,  A61K31/045

Abstract: A gastrointestinal-tract constricting method comprises: while observing the gastrointestinal tract with an endoscope inserted into the gastrointestinal tract, placing a protection substance, which does not damage tissue, in at least one of a region between the mucosal layer and muscular layer of the gastrointestinal tract and a region in a mucosal surface of the mucosal layer so as to form a protection region that protects the mucosa basal layer from a medical substance that damages the tissue; and, after forming the protection region, supplying the medical substance to a mucosal surface in a target region, which is at a position different from the protection region in a circumferential direction of the gastrointestinal tract, or to a position between the mucosal layer and the muscular layer.

公开(公告)号：US20160338771A1

公开(公告)日：2016-11-24

申请号：US15225486

申请日：2016-08-01

Applicant: OLYMPUS CORPORATION

Inventor： Tsukasa KOBAYASHI ,  Yuji SAKAMOTO ,  Hiroyuki MORISHITA ,  Isamu NAKAJIMA

IPC: A61B18/14

CPC classification number: A61B18/1492 ,  A61B2018/00494 ,  A61B2018/00982 ,  A61B2018/144

Abstract: A treatment tool for an endoscope includes a sheath which is extended along a longitudinal axis; a pre-curved portion which is disposed at a distal portion of the sheath; a knife wire lumen which is formed along the longitudinal axis of the sheath; a first communication hole and a second communication hole which are open on an outer circumferential surface to communicate the outer circumferential surface positioned with the knife wire lumen; a wire-shaped cutting portion which is protruded from the first communication hole and the second communication hole, and is extended in a position spaced from the outer circumferential surface and the virtual plane; a fixing portion which is provided to fix an end portion of a wire connected to the cutting portion inside the knife wire lumen, and a bending portion which is provided to bend the wire.

Abstract translation: 一种用于内窥镜的治疗工具，包括沿着纵向轴线延伸的护套; 设置在护套的远端部分的预弯曲部分; 沿着护套的纵向轴线形成的刀线管腔; 第一连通孔和第二连通孔，所述第一连通孔和第二连通孔在外周面上开口以连通与所述刀丝内腔定位的外周面; 从所述第一连通孔和所述第二连通孔突出的线状切断部，并且在与所述外周面和所述假想平面间隔开的位置延伸; 固定部分，其设置成将连接到切割部分的切割部分的线的端部固定在刀丝内腔内;弯曲部分，其设置成弯曲所述丝线。