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公开(公告)号：US20230329706A1
公开(公告)日：2023-10-19
申请号：US18337648
申请日：2023-06-20
Applicant: OLYMPUS CORPORATION , National Cancer Center
Inventor： Takashi NAKAMURA , Hiroyuki TAKAYAMA , Satoru NONAKA , Ichiro ODA , Seiichiro ABE
IPC: A61B17/068
CPC classification number: A61B17/068 , A61B2017/003
Abstract: A medical stapler includes an attachment-detachment portion attached to a distal-end portion of an endoscope and including an opening from which an objective lens of the endoscope is exposed; and a grasping portion attached to the attachment-detachment portion and including a first grasping portion and a second grasping portion connected by a rotation shaft to be openable and closeable, wherein the second grasping portion includes a visual-field space penetrating a gap between the staple reception portion and the rotation shaft in an open-close direction, when the grasping portion is in the closed state, the staple extraction portion and the staple reception portion are opposite to each other, and when the grasping portion is in an open state, an optical axis of the objective lens passes through the visual-field space.
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公开(公告)号：US20230329705A1
公开(公告)日：2023-10-19
申请号：US18337255
申请日：2023-06-19
Applicant: OLYMPUS CORPORATION , National Cancer Center
Inventor： Takashi NAKAMURA , Satoru NONAKA , Ichiro ODA , Seiichiro ABE
IPC: A61B17/068
CPC classification number: A61B17/068 , A61B2017/00296
Abstract: A medical stapler includes an attachment-detachment portion that is attachable to and detachable from a distal-end portion of an endoscope; a grasping portion arranged at a distal-end side of the attachment-detachment portion and configured to grasp target tissue and suture the grasped target tissue; and an advancement-retraction mechanism configured to connect the grasping portion to the attachment-detachment portion such that the grasping portion is advanceable and retractable with respect to the attachment-detachment portion, wherein the advancement-retraction mechanism includes a wire sheath inserting through a penetration hole formed in the attachment-detachment portion, a distal end of the wire sheath is fixed to the grasping portion, and the grasping portion moves to the distal-end side by moving the wire sheath toward the distal-end side.
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公开(公告)号：US20230329684A1
公开(公告)日：2023-10-19
申请号：US18337236
申请日：2023-06-19
Applicant: OLYMPUS CORPORATION
Inventor： Takashi NAKAMURA
CPC classification number: A61B17/00 , A61B1/00195 , A61B2017/00318 , A61B2017/00367 , A61B2017/07221
Abstract: A medical stapler includes a grasping portion connected to an endoscope and having a first jaw and a second jaw connected by a rotation shaft; an operation portion configured to receive an external force for operating the grasping portion to open and close; a first wire configured to transmit the external force that is received by the operation portion to the grasping portion; and a movable pin attached to a distal end of the first wire, wherein the grasping portion is transitioned to an open state and a closed state by the first/second jaw relatively rotating with each other, and the movable pin is advanceable and retractable between positions at the proximal-end and distal-end side of the rotation shaft in a state in which the movable pin is engaged with an engagement groove formed in the first jaw.
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公开(公告)号：US20240197302A1
公开(公告)日：2024-06-20
申请号：US18594616
申请日：2024-03-04
Applicant: OLYMPUS CORPORATION , National Cancer Center
Inventor： Takashi NAKAMURA , Shotaro Takemoto , Satoru Nonaka , Ichiro Oda , Seiichiro Abe
IPC: A61B17/00 , A61B1/00 , A61B17/04 , A61B17/064
CPC classification number: A61B17/00234 , A61B1/00101 , A61B17/0469 , A61B17/0644 , A61B2017/00296
Abstract: A fastening device includes a shaft having a longitudinal axis, a fixing member configured to fix the shaft to an endoscope by being attached to the endoscope, a staple unit attached to a distal end of the shaft and rotatable around the longitudinal axis, an operation unit provided at a proximal-end portion of the shaft, and a rotation restriction mechanism configured to restrict rotation of the staple unit around the longitudinal axis with respect to the endoscope due to an operation of the operation unit.
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Patent Agency Ranking
公开(公告)号：US20210106373A1
公开(公告)日：2021-04-15
申请号：US17132131
申请日：2020-12-23
Applicant: OLYMPUS CORPORATION
Inventor： Takashi NAKAMURA
Abstract: A medical treatment tool includes: a grasping portion having a first jaw and a second jaw; a plate-shaped blade that is provided in the first jaw and that has a thickness direction; a heater that supplies, to the first blade, thermal energy for treating a tissue grasped by the grasping portion; an energy insulating member that is arranged such that only an output surface of the blade, which comes into contact with the tissue, is exposed and that blocks leakage of the thermal energy to an outside of the first jaw; and first wiring that supplies electrical energy to the heater, wherein the blade, the heater, and the first wiring are arranged so as to be laminated in the thickness direction, and an area of a supply surface where the heater supplies the thermal energy to the blade is larger than an area of the output surface.
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公开(公告)号：US20250090170A1
公开(公告)日：2025-03-20
申请号：US18969746
申请日：2024-12-05
Applicant: OLYMPUS CORPORATION
Inventor： Ryu KUBO , Takashi NAKAMURA
Abstract: A medical stapler is a medical stapler used together with an endoscope and includes a flexible elongated member extending in a length direction of the endoscope, a wire inserted inside the elongated member and movable forward and backward with respect to the elongated member, a suture assembly connected to a distal end of the wire and being able to suture a gripped treatment target with a staple, an operation unit connected to a rear end of the wire and ejecting the staple from the suture assembly by moving the wire forward and backward, and an ejection restriction structure restricting ejection of the staple when a tension applied to the wire is equal to or less than a first tension caused by a change in shape of the elongated member.
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公开(公告)号：US20240206872A1
公开(公告)日：2024-06-27
申请号：US18596894
申请日：2024-03-06
Applicant: OLYMPUS CORPORATION
Inventor： Takashi NAKAMURA , Chisato Karasawa
IPC: A61B17/068 , A61B17/00
CPC classification number: A61B17/0684 , A61B17/00234 , A61B2017/00296 , A61B2017/00367 , A61B2017/00738
Abstract: A medical stapler includes a stapling head including a staple ejection portion, an anvil openably and closably coupled to the stapling head by a rotation shaft, a staple receiving portion provided in the anvil and provided at a position facing the staple ejection portion when the stapling head and the anvil are in a closed state, a lever rotatably provided on the stapling head, and a lever operation wire connected to the lever and provided to extend in a direction of a proximal end of the stapling head, in which the lever is capable of raising upward with respect to the stapling head in accordance with advance and retraction of the lever operation wire.
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公开(公告)号：US20210361150A1
公开(公告)日：2021-11-25
申请号：US17392494
申请日：2021-08-03
Applicant: OLYMPUS CORPORATION
Inventor： Takashi NAKAMURA
Abstract: A medical instrument includes a main body, a first tubular member configured to transmit power by rotating or periodically deforming, and a second tubular member configured to be attached to or detached from the first tubular member, in which the second tubular member includes an external gear member disposed on an outside of the first tubular member in a radial direction, and configured to have a plurality of external teeth arranged in a circumferential direction on an outer circumferential surface and to swing or deform according to power of the first tubular member, and an internal gear member disposed on an outside of the external gear member in the radial direction and configured to have a plurality of internal teeth arranged in the circumferential direction on an inner circumferential surface, and the number of internal teeth is greater than the number of external teeth.
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公开(公告)号：US20200078033A1
公开(公告)日：2020-03-12
申请号：US16681988
申请日：2019-11-13
Applicant: OLYMPUS CORPORATION
Inventor： Takashi NAKAMURA
Abstract: Provided is a treatment tool including an elongated inserting section that is curvable or bendable, a wire that is disposed from an end effector to a proximal end side of the inserting section through the inserting section, the end effector being connected to a tip of the inserting section, and a power input section that is disposed on the proximal end side of the inserting section and configured to input power to a proximal end portion of the wire, and the wire transmits, to the end effector, power to drive the end effector, and the power input section is configured to increase the power to be input into the proximal end portion of the wire in response to displacement of the proximal end portion of the wire in a longitudinal direction, the displacement accompanying a curve or bend of the inserting section.
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