公开(公告)号：US20190174993A1

公开(公告)日：2019-06-13

申请号：US16276897

申请日：2019-02-15

Applicant: OLYMPUS CORPORATION

Inventor： Kiwamu FUJITANI ,  Keisuke HATANO ,  Takayasu ITO

IPC: A61B1/005 ,  A61B1/015 ,  G02B23/24 ,  A61M25/01 ,  A61B1/00

Abstract: An endoscope operation portion includes: an operation portion body provided being connected to a grasping portion; a joystick-type bending operation lever provided on a back side of the operation portion body, including a lever shaft body, and configured to perform a bending operation of a bending portion; and a suction button provided on a front side of the operation portion body so that an angle formed by an operation axis in a pressing-down operation direction relative to a central axis of the lever shaft body is an obtuse angle, and an intersection point between the central axis and the operation axis is positioned inside the operation portion body.

公开(公告)号：US20190014972A1

公开(公告)日：2019-01-17

申请号：US15651520

申请日：2017-07-17

Applicant: OLYMPUS CORPORATION

Inventor： Keisuke HATANO ,  Kiwamu FUJITANI

IPC: A61B1/005 ,  A61B1/00

Abstract: An operation unit of an endoscope includes an insertion section that includes a bending portion, a plurality of operation wires configured to bend the bending portion, an operation lever that is provided on a freely tiltable operation section provided continuously to the insertion section, a wire pulling member swingably provided inside the operation section and having a plurality of arm portions, one end of the operation lever being coupled to the wire pulling member, a housing that is fixedly provided on the operation section, and that includes a through hole where the operation lever is arranged, a magnet that is provided on one of the housing and the other end portion of the operation lever, and a member on which attraction is generated by a magnetic force of the magnet, the member being provided on the other end portion of the operation lever or on the housing.

公开(公告)号：US20180333040A1

公开(公告)日：2018-11-22

申请号：US15974766

申请日：2018-05-09

Applicant: OLYMPUS CORPORATION

Inventor： Yudai HARADA ,  Kiwamu FUJITANI ,  Keisuke HATANO

IPC: A61B1/005 ,  A61B1/00 ,  G02B23/24

CPC classification number: A61B1/0052 ,  A61B1/00142 ,  G02B23/2476

Abstract: A cover member of a bending operation lever includes a center portion fixed to a shaft section of a bending operation lever of an endoscope, an intermediate portion extended in a peripheral direction from the center portion and having first hardness, and a periphery portion extended in the peripheral direction of the intermediate portion, having second hardness higher than the first hardness, and fixed to the endoscope.

公开(公告)号：US20170224194A1

公开(公告)日：2017-08-10

申请号：US15581697

申请日：2017-04-28

Applicant: OLYMPUS CORPORATION

Inventor： Kiwamu FUJITANI ,  Keisuke HATANO

IPC: A61B1/005 ,  A61B1/00 ,  A61B1/05 ,  A61B1/018

CPC classification number: A61B1/0057 ,  A61B1/00039 ,  A61B1/00114 ,  A61B1/00117 ,  A61B1/0052 ,  A61B1/0055 ,  A61B1/018 ,  A61B1/05 ,  G02B23/2476

Abstract: An endoscope according to the present invention includes: a bending tube including ring-like members pivotally joined via pairs of pivots facing each other relative to a center axis, the bending tube being bendable; a pair of first pull wire guides projecting inward of a ring-like member; a forceps channel disposed so as to be contactable with the pair of first pull wire guides; and a pair of second pull wire guides being provided so as to project inward of the ring-like member and being disposed so that a distance between distal end portions extending toward an inner circumferential side of the ring-like member is a distance that is smaller than an outer diameter of the forceps channel.

公开(公告)号：US20220233057A1

公开(公告)日：2022-07-28

申请号：US17717418

申请日：2022-04-11

Applicant: OLYMPUS CORPORATION

Inventor： Keisuke HATANO

IPC: A61B1/005

Abstract: A bending operation mechanism includes an operation lever, a wire pulling member, a pulling wire, a cylinder, and a pulley, and the pulley is disposed with a predetermined rotation shaft tilted so that an extended line of the predetermined rotation shaft intersects with the cylinder.

公开(公告)号：US20170245738A1

公开(公告)日：2017-08-31

申请号：US15597352

申请日：2017-05-17

Applicant: OLYMPUS CORPORATION

Inventor： Kiwamu FUJITANI ,  Keisuke HATANO ,  Takayasu ITO ,  Eiji MATSUDA

IPC: A61B1/005 ,  A61B1/008 ,  A61B1/00

Abstract: A dividing wall member is provided inside a specific bending piece selected from a plurality of bending pieces, an internal space of the bending piece is divided by the dividing wall member into a first space that opens corresponding to one rotating shaft, of rotating shafts that form a left and right pair, and a second space that is larger than the first space and opens corresponding to another rotating shaft, of the rotating shafts that form a left and right pair, and rotating shafts that form an upper and lower pair, a signal cable is inserted as a first internal component inside a first space, and a pair of light guides and a treatment instrument insertion channel are inserted as second internal components inside the second space.

公开(公告)号：US20170215697A1

公开(公告)日：2017-08-03

申请号：US15486944

申请日：2017-04-13

Applicant: OLYMPUS CORPORATION

Inventor： Keisuke HATANO ,  Kiwamu FUJITANI

IPC: A61B1/005

CPC classification number: A61B1/0052 ,  A61B1/00066 ,  A61B1/0057 ,  A61B1/04 ,  G02B23/24

Abstract: A bending operation device, includes: a bending lever that is inclinably supported with respect to an operation section of an endoscope; an arm part that is provided in the bending lever and includes a distal end displaceable in conjunction with inclination operation of the bending lever; and an intermediate lever that is swingably supported with respect to the operation section, includes a force point at a middle of the intermediate lever, and includes a point of application at a position farther from a fulcrum (a shaft portion) than the force point, the force point being connected to the distal end of the arm part through an intermediate wire, and the point of application being connected to a bending wire.

公开(公告)号：US20170105602A1

公开(公告)日：2017-04-20

申请号：US15393396

申请日：2016-12-29

Applicant: OLYMPUS CORPORATION

Inventor： Kiwamu FUJITANI ,  Keisuke HATANO ,  Takayasu ITO

IPC: A61B1/00 ,  A61B1/015 ,  G02B23/24 ,  A61B1/005

CPC classification number: A61B1/0052 ,  A61B1/00066 ,  A61B1/00068 ,  A61B1/00094 ,  A61B1/00128 ,  A61B1/005 ,  A61B1/015 ,  A61B2017/003 ,  A61B2017/00318 ,  A61B2034/742 ,  A61M25/0133 ,  A61M25/0136 ,  G02B23/24

Abstract: An endoscope operation portion includes: an operation portion body provided being connected to a grasping portion; a joystick-type bending operation lever provided on a back side of the operation portion body, including a lever shaft body, and configured to perform a bending operation of a bending portion; and a suction button provided on a front side of the operation portion body so that an angle formed by an operation axis in a pressing-down operation direction relative to a central axis of the lever shaft body is an obtuse angle, and an intersection point between the central axis and the operation axis is positioned inside the operation portion body.

公开(公告)号：US20180310803A1

公开(公告)日：2018-11-01

申请号：US16026326

申请日：2018-07-03

Applicant: OLYMPUS CORPORATION

Inventor： Keisuke HATANO ,  Shigeyasu KISHIOKA

IPC: A61B1/005 ,  A61B34/00

CPC classification number: A61B1/00

Abstract: An operation lever type (joystick type) endoscope including an operation lever capable of adjusting a bending angle of a bending portion in response to a tilting operation of an operation portion, and an exterior cover an outer periphery portion of which is watertightly fixed to an operation portion body (an operation portion), and an inner periphery portion of which watertightly covers an outer circumference of the operation lever, the exterior cover being capable of deforming by pressure fluctuation inside the operation portion (that is, pressure fluctuation of a sealed space formed inside the endoscope), is provided with a restricting member 90 configured to restrict expansion of the exterior cover by the fluctuation of the internal pressure.

公开(公告)号：US20170251906A1

公开(公告)日：2017-09-07

申请号：US15597560

申请日：2017-05-17

Applicant: OLYMPUS CORPORATION

Inventor： Keisuke HATANO

IPC: A61B1/005 ,  A61B1/008 ,  A61B1/018 ,  A61B1/015

CPC classification number: A61B1/0057 ,  A61B1/0052 ,  A61B1/0055 ,  A61B1/008 ,  A61B1/015 ,  A61B1/018

Abstract: An endoscope includes stays extending inside an operation section along a direction of a longitudinal axis, and a suction pipeline fixed to the operation section at a distal end side and a proximal end side so as to extend inside the operation section, along the stays and in the direction of the longitudinal axis, where an inside of the operation section is partitioned into a first space portion and a second space portion by the stays and the suction pipeline, each angle wire is disposed inside the first space portion, and long internal components, such as a signal cable and a light guide, are disposed inside the second space portion.