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公开(公告)号：US09949781B2
公开(公告)日：2018-04-24
申请号：US15279137
申请日：2016-09-28
Applicant: OLYMPUS CORPORATION
Inventor： Tomoyuki Takashino , Yusuke Takei , Kazuhiro Tanaka
CPC classification number: A61B18/085 , A61B18/10 , A61B18/12 , A61B18/1445 , A61B2018/00083 , A61B2018/00601 , A61B2018/00702 , A61B2018/00791 , A61B2018/1452
Abstract: A grasping treatment unit includes a first jaw, and a second jaw openable and closable relative to the first jaw. In the first jaw, a heating wire continues without branching from a first extending end to a second extending end, and heat is generated over an entire length from the first extending end to the second extending end when the electric current flows through the heating wire. In a heating portion, a calorific value per unit area is higher in a distal portion than in a proximal portion in the first jaw when the heat is generated from the heating wire. On a treatment surface of the first jaw, an amount of heat transfer from the heating portion is greater in the distal portion than in the proximal portion.
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公开(公告)号：US11786288B2
公开(公告)日：2023-10-17
申请号：US16878998
申请日：2020-05-20
Applicant: OLYMPUS CORPORATION
Inventor： Yusuke Takei , Kazuhiro Tanaka , Tomoyuki Takashino
CPC classification number: A61B18/085 , A61B18/1442 , A61B2018/00077 , A61B2018/00601 , A61B2018/00702 , A61B2018/00714 , A61B2018/1455
Abstract: An electrically conductive plate of a treatment instrument includes a treating surface and a back surface facing an opposite side of the treating surface, and an electric component is arranged on the back surface of the electrically conductive plate. The electric component is electrically independent from the electrically conductive plate, and a holder supports the electrically conductive plate from the back surface side. A connector is made of a thermoplastic resin, and arranged on either side of and spaced from the electric component in a width direction intersecting with a longitudinal axis. The connector stationarily fixes each end of the electrically conductive plate in the width direction to the holder.
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公开(公告)号：US11707316B2
公开(公告)日：2023-07-25
申请号：US16227269
申请日：2018-12-20
Applicant: OLYMPUS CORPORATION
Inventor： Kazuhiro Tanaka , Yuki Kawaguchi , Yusuke Takei , Ojiro Kitamura , Akinori Kobayashi , Tomoyuki Takashino , Tatsuro Yamamoto
CPC classification number: A61B18/1445 , A61B17/2909 , A61B17/320092 , A61B18/085 , A61B2017/00845 , A61B2017/00858 , A61B2017/2901 , A61B2017/291 , A61B2017/2912 , A61B2017/2927 , A61B2017/2929 , A61B2018/00202
Abstract: A treatment instrument includes a rotating body and a housing. The rotating body includes a connecting portion including: a supported portion having a cylindrical outer peripheral surface, and an engaged portion that is adjacent to the supported surface. The housing includes a supporting portion that is configured to support the supported portion of the rotating body, the supporting portion being rotatable around a predetermined rotation axis; and an engaging portion that is configured to generate a frictional force larger than a frictional force between the supporting portion and the supported portion by coming into contact with the engaged portion.
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公开(公告)号：US20230200887A1
公开(公告)日：2023-06-29
申请号：US18170824
申请日：2023-02-17
Applicant: Olympus Corporation
Inventor： Akira MIYAZAKI , Hiroyuki Takayama , Daisuke Yanagi , Kazuhiro Tanaka , Ojiro Kitamura , Tomoyuki Takashino
IPC: A61B18/14
CPC classification number: A61B18/1445 , A61B18/1492
Abstract: A treatment tool includes: an insertion tube; a distal end part that is provided at a distal end of the insertion tube; a shaft that is provided in the distal end part and that includes an outer circumferential surface; and a pair of transmitters each of which is inserted into the insertion tube and is fixed to the distal end part, the pair of transmitters being configured to transmit a drive force that causes the distal end part to flex with respect to the insertion tube, each transmitter being arranged along the outer circumferential surface with the shaft being sandwiched between the pair of transmitters and, on a distal end side with respect to the shaft, the pair of transmitters extending in a state of being separate from each other in a distance smaller than a diameter of the outer circumferential surface of the shaft.
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公开(公告)号：US11596464B2
公开(公告)日：2023-03-07
申请号：US15930075
申请日：2020-05-12
Applicant: OLYMPUS CORPORATION
Inventor： Yusuke Takei , Kazuhiro Tanaka , Tomoyuki Takashino
Abstract: A medical apparatus includes a first jaw; a second jaw that opens and closes with the first jaw; a shaft to which the second jaw is pivotably attached; and a sliding member provided between the second jaw and the shaft, abutted to each of the second jaw and the shaft, and configured to be slidable with respect to at least one of the second jaw or the shaft.
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Patent Agency Ranking
公开(公告)号：US20230181233A1
公开(公告)日：2023-06-15
申请号：US18167558
申请日：2023-02-10
Applicant: Olympus Corporation
Inventor： Akira MIYAZAKI , Kazuhiro Tanaka , Ojiro Kitamura
IPC: A61B18/08
CPC classification number: A61B18/085 , A61B2018/00601
Abstract: A treatment tool includes: a tubular insertion tube; an end effector that is provided at a distal end of the insertion tube and is bendable with respect to the insertion tube, the end effector being configured to apply treatment energy to a living tissue according to supplied power to treat the living tissue; a shaft body that is provided in the end effector and has an outer peripheral surface located on a circumference of a specific circle centered on a rotation axis when viewed from a direction along the rotation axis, the rotation axis allowing the end effector to be bent with respect to the insertion tube; and a wiring that is inserted through the insertion tube and serves as a supply path of the power, the shaft body including a passage through which the wiring is inserted.
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公开(公告)号：US09827034B2
公开(公告)日：2017-11-28
申请号：US15051229
申请日：2016-02-23
Applicant: OLYMPUS CORPORATION
Inventor： Tomoyuki Takashino , Yusuke Takei , Kazuhiro Tanaka
CPC classification number: A61B18/085 , A61B18/1445 , A61B2017/00115 , A61B2018/00101 , A61B2018/00601 , A61B2018/0063 , A61B2018/00791 , A61B2018/00898 , A61B2090/061
Abstract: A treatment device includes: a treatment portion including an abutment surface which is abutted on the living body tissue, and a back surface opposed to the abutment surface, the treatment portion being capable of applying energy to the living body tissue via the abutment surface, and heat being transferred toward the back surface in accordance with the application of the energy; a cover covering the back surface of the treatment portion; and an adjuster disposed between the treatment portion and the cover, and configured to vary a distance between the treatment portion and the cover, and to adjust an air layer region between the treatment portion and the cover.
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公开(公告)号：US11617613B2
公开(公告)日：2023-04-04
申请号：US16685324
申请日：2019-11-15
Applicant: Olympus Corporation
Inventor： Akira Miyazaki , Yuki Kawaguchi , Kazuhiro Tanaka
Abstract: A medical instrument comprises a housing and an elongated sheath configured to be attached to the housing. The elongated sheath includes opposed distal end and proximal end along a longitudinal axis. An end effector is configured to be attached to the distal end of the elongated sheath. The end effector includes a pair of grasps. A direction changer is used to change a direction of the end effector with respect to the distal end of the elongated sheath. A first drive shaft movable in the elongated sheath in ganged relation for opening and closing movement of the pair of grasps. A second drive shaft movable in the elongated sheath in ganged relation for angular movement of the end effector by the direction changer with respect to the elongated sheath. An operating member is configured to actuate the second drive shaft between a bent positions and a neutral position.
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公开(公告)号：US11134972B2
公开(公告)日：2021-10-05
申请号：US16220010
申请日：2018-12-14
Applicant: Olympus Corporation
Inventor： Kazuhiro Tanaka , Yusuke Takei , Ojiro Kitamura , Akinori Kobayashi , Tatsuro Yamamoto
IPC: A61B17/29 , A61B17/068 , A61B17/3201 , A61B17/00 , A61B17/072
Abstract: A treatment tool includes a housing, a sheath rotatable around a predetermined axis of rotation with respect to the housing. An end effector is disposed on a distal-end portion of the sheath and rotatable in unison with the sheath around the axis of rotation. A locking member for restraining rotation of the sheath with respect to the housing by engaging the sheath. A manipulating member is mounted on the housing and moves with respect to the housing for causing the locking member and the sheath to switch between engaging and disengaging positions.
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公开(公告)号：US20200078087A1
公开(公告)日：2020-03-12
申请号：US16685324
申请日：2019-11-15
Applicant: Olympus Corporation
Inventor： Akira Miyazaki , Yuki Kawaguchi , Kazuhiro Tanaka
IPC: A61B18/14
Abstract: A medical instrument comprises a housing and an elongated sheath configured to be attached to the housing. The elongated sheath includes opposed distal end and proximal end along a longitudinal axis. An end effector is configured to be attached to the distal end of the elongated sheath. The end effector includes a pair of grasps. A direction changer is used to change a direction of the end effector with respect to the distal end of the elongated sheath. A first drive shaft movable in the elongated sheath in ganged relation for opening and closing movement of the pair of grasps. A second drive shaft movable in the elongated sheath in ganged relation for angular movement of the end effector by the direction changer with respect to the elongated sheath. An operating member is configured to actuate the second drive shaft between a bent positions and a neutral position.
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