公开(公告)号：US20220296078A1

公开(公告)日：2022-09-22

申请号：US17835190

申请日：2022-06-08

Applicant: OLYMPUS CORPORATION

Inventor： Motohiko SUZUKI ,  Takuto YOSHINAGA ,  Tsukasa OTA ,  Wataru MATSUURA ,  Keita MITSUHASHI

IPC: A61B1/005

Abstract: A bending operation mechanism includes a bending operation member configured to bend a bending portion, a wire pulling member configured to rotate along with rotation of the bending operation member, a lock operation member supported to a rotational axis, a cam member having a cam surface and integrally provided with the lock operation member, and a brake member having a cam follower surface capable of sliding relative to the cam surface. The cam member moves along with rotation of the lock operation member. The brake member moves in a direction in which a contact surface contacts a circumference of the wire pulling member as the cam follower surface slides on the cam surface in accordance with movement of the cam member.

公开(公告)号：US20210338065A1

公开(公告)日：2021-11-04

申请号：US17373938

申请日：2021-07-13

Applicant: OLYMPUS CORPORATION

Inventor： Takuto YOSHINAGA ,  Tsukasa OTA ,  Xiongwei WANG

IPC: A61B1/018

Abstract: An insertion device includes: a tube having a first hole extending along a longitudinal axis of an insertion portion inserted into a subject and a second hole communicating with the first hole; and a frame member covering a periphery of an opening of the second hole formed on an outer peripheral surface of the tube, wherein the frame member includes a forceps channel which includes a first conduit including a first tubular path forming a first angle being an acute angle to the longitudinal axis, a second conduit including a second tubular path forming a second angle smaller than the first angle to the longitudinal axis, and an intermediate conduit including an intermediate tubular path, and the forceps channel includes a plurality of bent regions, and curvature centers of the plurality of bent regions are disposed in different directions with respect to the forceps channel.

公开(公告)号：US20200367723A1

公开(公告)日：2020-11-26

申请号：US16906138

申请日：2020-06-19

Applicant: OLYMPUS CORPORATION

Inventor： Takuto YOSHINAGA ,  Tsukasa OTA ,  Xiongwei WANG

IPC: A61B1/005 ,  A61B1/008 ,  A61B1/06

Abstract: An operation section includes a pressing member, a stopper, a lever fixing member and, an exterior member. The lever fixing member is positioned with respect to the exterior member such that a projecting portion is continuously brought into contact with the exterior member when the lever fixing member is rotated, and a recessed portion which changes a contact state of the projecting portion with respect to the exterior member along with the rotation of the lever fixing member is formed in the exterior member.

公开(公告)号：US20200245853A1

公开(公告)日：2020-08-06

申请号：US16855520

申请日：2020-04-22

Applicant: OLYMPUS CORPORATION

Inventor： Xiongwei WANG ,  Tsukasa OTA ,  Takuto YOSHINAGA

IPC: A61B1/012 ,  A61B1/018 ,  A61B1/005

Abstract: An endoscope system includes a mother endoscope, a baby endoscope and a fixing member. The mother endoscope includes a first insertion section, a first operation section, a treatment instrument insertion channel and an opening. The baby endoscope includes a second insertion section and a second operation section. The first operation section includes a projection portion. The second operation section includes a recess portion that is a recessed face formed such that at least part of the recessed face comes into face contact with a surface of the projection portion. The second operation section is fixed to the first operation section in a state where the recess portion is in contact with the surface of the projection portion.

公开(公告)号：US20220313063A1

公开(公告)日：2022-10-06

申请号：US17843464

申请日：2022-06-17

Applicant: OLYMPUS CORPORATION

Inventor： Motohiko SUZUKI ,  Takuto YOSHINAGA ,  Tsukasa OTA ,  Wataru MATSUURA ,  Keita MITSUHASHI

IPC: A61B1/005

Abstract: A bending operation mechanism for an endoscope, which is a pulley unit, includes: an up-down bending pulley which is a rotation body; an angle wire which is a bending-portion pulling member having a distal end side connected to a bending portion and a proximal end side that is pulled by the up-down bending pulley; and a spiral spring which is a slack absorption member having a first end connected to the an proximal end of the angle wire and a second end side connected to the up-down bending pulley and configured to pull the angle wire in the direction toward the up-down bending pulley.

公开(公告)号：US20220087510A1

公开(公告)日：2022-03-24

申请号：US17542950

申请日：2021-12-06

Applicant: OLYMPUS CORPORATION

Inventor： Takuto YOSHINAGA ,  Kazuma KANEKO ,  Masanori SUMIYOSHI ,  Tsukasa OTA ,  Wataru MATSUURA

IPC: A61B1/00 ,  A61B1/04

Abstract: A plug of a connector for connecting an optical waveguide provided in a medical instrument includes: a coupling portion configured to be inserted into a receptacle of the connector; a connecting surface formed at an end in a first direction in which the coupling portion is inserted into the receptacle; an opening portion provided on the connecting surface, the opening portion having a recessed shape; and a holding portion configured to hold the optical waveguide such that an end face of the optical waveguide is directed in the first direction. The holding portion and the optical waveguide are disposed on a side of a second direction with respect to the connecting surface, the second direction being opposite to the first direction.

公开(公告)号：US20210113064A1

公开(公告)日：2021-04-22

申请号：US17095927

申请日：2020-11-12

Applicant: OLYMPUS CORPORATION

Inventor： Takuto YOSHINAGA ,  Tsukasa OTA ,  Xiongwei WANG

IPC: A61B1/005

Abstract: A bending operation mechanism of an endoscope including: a first pulley configured to pull a first wire by being rotated in a first rotation direction; a second pulley, which is coaxial with the first pulley, configured to pull a second wire by being rotated in a second rotation direction opposite to the first rotation direction; and a rotation shaft member including a first protrusion that engages only with the first engagement portion of the first pulley when the rotation shaft member is rotated in the first rotation direction from a neutral position when a bending portion is not bent and a second protrusion that engages only with the second engagement portion of the second pulley when the rotation shaft member is rotated in the second rotation direction from the neutral position.

公开(公告)号：US20220296089A1

公开(公告)日：2022-09-22

申请号：US17835210

申请日：2022-06-08

Applicant: OLYMPUS CORPORATION

Inventor： Keita MITSUHASHI ,  Tsukasa OTA ,  Takuto YOSHINAGA ,  Wataru MATSUURA ,  Motohiko SUZUKI

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

Abstract: An endoscope includes an image pickup module having an optical axis that defines a visual field direction and provided with an electric contact, a cable that is disposed on a proximal end side of the image pickup module and transfers an image pickup signal generated by the image pickup module, a channel provided beside the image pickup module, and a movable board electrically connecting the electric contact and the cable to transfer the image pickup signal and including a movable portion capable of forming a curved surface that is freely displaceable in an optical axis direction. The movable portion of the movable board is arranged at a position where a distance between the curved surface and the channel is longer than a distance between the curved surface and the optical axis.

公开(公告)号：US20200315426A1

公开(公告)日：2020-10-08

申请号：US16907420

申请日：2020-06-22

Applicant: OLYMPUS CORPORATION

Inventor： Takuto YOSHINAGA ,  Tsukasa OTA ,  Xiongwei WANG

IPC: A61B1/005 ,  A61B1/01 ,  A61B1/00 ,  A61B1/012

Abstract: An insertion apparatus includes: a tube in which a water feeding communication hole opens on an outer peripheral surface of the tube; a tube connector in which a water feeding branch conduit which allows an inner surface of a tube insertion hole to communicate with an outside is formed, and a second stopper portion which protrudes toward the inside of the tube insertion hole is formed; an O ring which is positioned by contacting with the second stopper portion; a spacer which is positioned by contacting with the O ring, and in which a communication hole which allows an inner surface side and an outer surface side of a wall portion to communicate with each other is formed; and an O ring which is positioned by contacting with the spacer.

公开(公告)号：US20190191965A1

公开(公告)日：2019-06-27

申请号：US16289751

申请日：2019-03-01

Applicant: OLYMPUS CORPORATION

Inventor： Tsukasa OTA ,  Yuka IDE

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

CPC classification number: A61B1/0051 ,  A61B1/00 ,  A61B1/00147 ,  A61B1/005 ,  A61B1/01 ,  A61B1/05 ,  A61B1/0676 ,  G02B23/24 ,  G02B23/2476

Abstract: An endoscope is provided with: a wire; a distal end nodal ring, in which the wire is arranged immediately below a first through hole including openings at predetermined positions on the inner circumferential face and an outer circumferential face of the distal end nodal ring; a distal end member including a small diameter portion arranged to be fitted in a distal end side inner circumferential face of the distal end nodal ring and a large diameter portion provided on a distal end side of the small diameter portion, the large diameter portion having a diameter larger than a diameter of the small diameter portion; an accommodating portion formed on an outer circumferential face side of the small diameter portion, the first end portion of the wire being accommodated in the accommodating portion; and a relief portion formed by the accommodating portion extending to the large diameter portion.