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：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：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：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：US20220338716A1

公开(公告)日：2022-10-27

申请号：US17858223

申请日：2022-07-06

Applicant: OLYMPUS CORPORATION

Inventor： Nobuko MATSUO ,  Keiichi SATO ,  Takuya OKUMURA ,  Yuta HAYASHI

IPC: A61B1/00 ,  A61B18/14

Abstract: A treatment device and an endoscopic treatment method are disclosed. The treatment device includes a first pipeline that is made of material having electrical insulation, and includes an internal space; an electrode that is energizable with high frequency current; a distal-end tip that is attached to a distal end of the first pipeline, and includes a distal-end opening in communication with the internal space of the first pipeline; and a second pipeline that is inserted through the first pipeline and through which liquid can pass. The endoscopic treatment method includes puncturing a treatment target and performing a local injection using the treatment device.

公开(公告)号：US20220133295A1

公开(公告)日：2022-05-05

申请号：US17574848

申请日：2022-01-13

Applicant: OLYMPUS CORPORATION

Inventor： Takuya OKUMURA ,  Kunihide KAJI ,  Nobuko MATSUO

IPC: A61B17/04 ,  A61B17/08

Abstract: A tissue traction device includes a first needle connected to a distal end of a first thread; a second needle connected to a distal end of a second thread; an elongated main body connected to the first thread and extending between the first thread and the second thread, the main body being elastically deformable; a tube disposed at a proximal end of the main body; and a traction member having a distal end connected to a distal end portion of the main body, the traction member extending from the distal end portion of the main body toward a distal end of the tube.

公开(公告)号：US20220133290A1

公开(公告)日：2022-05-05

申请号：US17573100

申请日：2022-01-11

Applicant: OLYMPUS CORPORATION ,  NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY

Inventor： Yoshinori MORITA ,  Kunihide KAJI ,  Nobuko MATSUO ,  Takuya OKUMURA

IPC: A61B17/02 ,  A61B17/04

Abstract: A tissue traction device includes a first needle connected to a distal end of a first thread; a second needle connected to a distal end of a second thread; an elongated main body connected to the first thread and extending between the first thread and the second thread, the main body including a first hole; and a tube disposed at a proximal end of the main body, wherein the second thread is inserted through the first hole to be advanceable and retractable at a position between the second needle and a distal end of the tube, and the tube and the second thread are configured to be relatively movable in a longitudinal direction of the tube.