公开(公告)号：US20250099721A1

公开(公告)日：2025-03-27

申请号：US18973313

申请日：2024-12-09

Applicant: OLYMPUS CORPORATION

Inventor： Takahiro SUZUKI ,  Tomofumi KATAYAMA

IPC: A61M25/09 ,  A61B1/273 ,  A61F2/04 ,  A61F2/966 ,  A61M5/00 ,  A61M25/01

Abstract: A guide wire holder includes a sheath including a lumen, a central axis of the sheath extending along a longitudinal axis; an operation wire configured to be inserted into the lumen and configured to advance and retract in the lumen along the longitudinal axis; and a hook including a first end portion, a second end portion and a convex bending region, wherein the first end portion is connected to a distal end of the operation wire, and extends along the longitudinal axis on a first plane, wherein the second end portion extends along the longitudinal axis on the first plane, wherein the convex bending region includes a protruding end portion that curves on a second plane along a radial direction, wherein the second plane is not parallel to the first plane.

公开(公告)号：US20220160392A1

公开(公告)日：2022-05-26

申请号：US17531887

申请日：2021-11-22

Applicant: OLYMPUS CORPORATION

Inventor： Tomotaka HAYAKAWA ,  Tomofumi KATAYAMA ,  Takahiro SUZUKI ,  Atsushi UJINO ,  Yutaka YANUMA ,  Ayano YAMATANI

IPC: A61B17/34 ,  A61B1/00 ,  A61B1/018 ,  A61B17/00 ,  A61B18/14

Abstract: An access device used with an endoscope includes an access pipe configured to be inserted into a sheath of the endoscope, a piercer disposed on a distal end portion of the access pipe and configured to pierce into a hollow organ through a digestive tract of a patient, and a treatment tool configured to be inserted into the access pipe and to be introduced into the hollow organ by the piercer. The access device is switchable between a first configuration and a second configuration. In the first configuration, a piercing function of the piercer is switched on, so that the piercer pierces the digestive tract and the hollow organ to enter into an interior of the hollow organ, and in the second configuration, the piercing function of the piercer is switched off, the piercer is kept connected to the interior of the hollow organ.

公开(公告)号：US20210128889A1

公开(公告)日：2021-05-06

申请号：US17150655

申请日：2021-01-15

Applicant: OLYMPUS CORPORATION

Inventor： Takahiro SUZUKI ,  Tomofumi KATAYAMA ,  Yutaka YANUMA

IPC: A61M25/09 ,  A61F2/966

Abstract: A guide wire holder includes a sheath having a lumen, an operation wire which is inserted through the lumen to be able to advance and retract, and a hook which is continuous with a distal end of the operation wire and protrudes from a distal end of the sheath, wherein the sheath has an inner wall surface which forms a groove configured to extend from the distal end of the sheath to a proximal end side of the sheath, the groove has an opening portion which opens to an outer peripheral surface of the sheath, the hook has a guide wire engagement surface which is engageable with a guide wire, and the guide wire is able to be held between the guide wire engagement surface and the inner wall surface.

公开(公告)号：US20240358974A1

公开(公告)日：2024-10-31

申请号：US18765980

申请日：2024-07-08

Applicant: OLYMPUS CORPORATION

Inventor： Takuo ENDO ,  Tomofumi KATAYAMA

IPC: A61M25/06 ,  A61B1/018 ,  A61B8/12 ,  A61B17/34 ,  A61F2/966 ,  A61M25/09 ,  A61M27/00

CPC classification number: A61M25/06 ,  A61B1/018 ,  A61B8/12 ,  A61B17/3403 ,  A61F2/966 ,  A61M25/09 ,  A61M27/002 ,  A61B2017/3413 ,  A61M2025/0681

Abstract: The present invention relates a puncture needle includes: a sheath having a longitudinal axis; a needle tube that is arranged inside the sheath to be moved along the longitudinal axis and that has a needle tip; and a protective tube that is arranged inside the needle tube to be moved along the longitudinal axis and that has a lumen into which a guide wire is inserted. The needle tube has a step portion formed at a position midway along the needle tube. The protective tube has a protrusion, which protrudes radially outward, on an outer peripheral surface thereof at a position midway nearer a proximal end side of the protective tube than the step portion is. A distal end of the protective tube is positioned at a position to protrude from the distal end of the needle tube when the protrusion abuts the step portion.

公开(公告)号：US20210162181A1

公开(公告)日：2021-06-03

申请号：US17148799

申请日：2021-01-14

Applicant: OLYMPUS CORPORATION

Inventor： Takuo ENDO ,  Tomofumi KATAYAMA

IPC: A61M25/06 ,  A61B1/018 ,  A61M25/09 ,  A61B17/34 ,  A61F2/966 ,  A61B8/12

Abstract: The present invention relates a puncture needle includes: a sheath having a longitudinal axis; a needle tube that is arranged inside the sheath to be moved along the longitudinal axis and that has a needle tip; and a protective tube that is arranged inside the needle tube to be moved along the longitudinal axis and that has a lumen into which a guide wire is inserted. The needle tube has a step portion formed at a position midway along the needle tube. The protective tube has a protrusion, which protrudes radially outward, on an outer peripheral surface thereof at a position midway nearer a proximal end side of the protective tube than the step portion is. A distal end of the protective tube is positioned at a position to protrude from the distal end of the needle tube when the protrusion abuts the step portion.

公开(公告)号：US20210085930A1

公开(公告)日：2021-03-25

申请号：US17112003

申请日：2020-12-04

Applicant: OLYMPUS CORPORATION

Inventor： Takahiro SUZUKI ,  Tomofumi KATAYAMA

IPC: A61M25/09

Abstract: A guide wire holder includes a sheath having a lumen, an operation wire inserted into the lumen and configured to be able to advance and retract in the lumen, and a hook continuous with a distal end of the operation wire, being formed to be bent in a convex shape toward a distal side, and protrudes from a distal end of the sheath. The sheath has a side surface extending from the distal end of the sheath to a proximal end side in a direction of the longitudinal axis. The hook intersects a ridge line of the side surface and forms a closed region closed by the hook and the ridge line in a front view. The guide wire holder is configured to hold the guide wire located outside the sheath in the closed region in a state that the hook is disposed at a retracted position at which the hook is retracted.

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.