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公开(公告)号:US20230200631A1
公开(公告)日:2023-06-29
申请号:US18175392
申请日:2023-02-27
Applicant: FUJIFILM Corporation
Inventor: Takumi DEJIMA , Tomohiro OHKI , Kenji NAGAMIYA , Shozo IYAMA
CPC classification number: A61B1/00154 , A61B1/31 , A61B1/0008
Abstract: An insertion assist tube for an endoscope includes an insertion assist tube body and a fluid suppression member. The insertion assist tube body has a pipe line through which an insertion part is inserted, and an opening portion. The fluid suppression member is provided in the opening portion to suppress passage of a fluid. The fluid suppression member has a first porous member on which a first slit is formed, and a second porous member on which a second slit intersecting the first slit is formed.
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公开(公告)号:US20210076909A1
公开(公告)日:2021-03-18
申请号:US17105631
申请日:2020-11-27
Applicant: FUJIFILM Corporation
Inventor: Yoshihiro UEDA , Nobuyuki TORISAWA , Shozo IYAMA
Abstract: An endoscope aid 100 to be attachably and detachably attached to a treatment tool insertion channel 23 of an endoscope 2 includes a tubular member 101 capable of being fixed to an outlet portion 25 in a state where the tubular member 101 is fitted inside the outlet portion 25 of the treatment tool insertion channel 23 that is kept in the shape of a straight pipe regardless of bending of a bending part 15 of the endoscope 2. When the tubular member 101 is fixed to the outlet portion 25, a proximal end 101A of the tubular member 101 located on a side opposite to an outlet side of the treatment tool insertion channel 23 is disposed closer to the outlet side of the treatment tool insertion channel 23 than a proximal end 15A of the bending part 15.
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公开(公告)号:US20200146531A1
公开(公告)日:2020-05-14
申请号:US16744187
申请日:2020-01-16
Applicant: FUJIFILM Corporation
Inventor: Takashi HARADA , Shozo IYAMA
IPC: A61B1/00
Abstract: An endoscope in which an erecting operation mechanism is provided at an operation section and that can prevent an increase in size of a holding part of the operation section is provided. An endoscope according to the present invention includes an operation section 22 having an operation section main body 32, a holding part 34 connected to the operation section main body 32, and an extension part 36 extending from the holding part 34 toward a distal end side; an insertion section 24 provided on a distal end side of the extension part 36; an erecting base 30 provided at a distal end part 26 of the insertion section 24; a movable member 96 that is provided at the extension part 36 and that moves in association with an operation of an erecting operation lever 20; a wire 60 that is coupled to the erecting base 30 at a distal end side thereof, that is coupled to the movable member 96 at a proximal end side thereof, and that is pushed/pulled by the movable member 96; and an attachment member 98 that is provided at a proximal end of the wire 60 and that is engaged with the movable member 96 in an attachable/detachable manner by a one-touch operation.
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公开(公告)号:US20180078121A1
公开(公告)日:2018-03-22
申请号:US15706772
申请日:2017-09-18
Applicant: FUJIFILM Corporation
Inventor: Hiroaki YASUDA , Tomohiro OHKI , Satoru OGAMI , Toshizumi TANAKA , Tatsuya MINAGAWA , Takashi HARADA , Shozo IYAMA
Abstract: An endoscope includes a standing base in a tip portion body, an operation wire of which a tip side is connected to the standing base, and a stretchable coating member that covers the operation wire along an extending direction of the operation wire and so as to allow the operation wire to be relatively movable over the entire region from a connection portion between the standing base and the operation wire to an operation wire-guide passage. A tip of the coating member and the standing base are liquid-tightly fixed to each other, and a base end of the coating member and the operation wire-guide passage are liquid-tightly fixed to each other, and the coating member is disposed at a position where a moving path of the coating member and a moving path of a treatment tool led from a treatment tool-guide passage do not interfere with each other.
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公开(公告)号:US20250107694A1
公开(公告)日:2025-04-03
申请号:US18900572
申请日:2024-09-27
Applicant: FUJIFILM Corporation
Inventor: Takashi HARADA , Shozo IYAMA
Abstract: Provided is an endoscope capable of improving cleanability of a distal end portion of an endoscope insertion part. An endoscope includes: a distal end portion including an elevator housing chamber and a lever housing chamber; an elevator housed in the elevator housing chamber; a lever housed in the lever housing chamber; an operation wire connected to the lever; a first partition wall that is provided at the distal end portion and that divides the elevator housing chamber and the lever housing chamber; a rotary shaft that couples the elevator and the lever to each other, the rotary shaft being inserted through a through-hole provided in the first partition wall; and a sealing member that is mounted on the rotary shaft and that seals the through-hole in a case in which the rotary shaft is inserted through the through-hole, the sealing member being attachable and detachable from a lever housing chamber side.
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公开(公告)号:US20210121054A1
公开(公告)日:2021-04-29
申请号:US17138911
申请日:2020-12-31
Applicant: FUJIFILM Corporation
Inventor: Yoshihiro UEDA , Nobuyuki TORISAWA , Shozo IYAMA
Abstract: An endoscope aid is attachably and detachably attached to a treatment tool insertion channel of an endoscope where a suction tube joins. The endoscope aid includes a flexible tubular member having a length equal to or larger than a length ranging from at least an inlet-side end part of an outlet portion of the treatment tool insertion channel, which is maintained in the shape of a straight pipe regardless of bending of a bending part of the endoscope, to an inlet of the treatment tool insertion channel. The tubular member has a distal end part that has an outer periphery in sliding contact with an inner peripheral surface of the outlet portion of the treatment tool insertion channel and is disposed at the outlet portion, and a communication part that allows an outlet of the treatment tool insertion channel and the suction tube to communicate with each other.
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公开(公告)号:US20200015782A1
公开(公告)日:2020-01-16
申请号:US16577894
申请日:2019-09-20
Applicant: FUJIFILM Corporation
Inventor: Yasuhiko MORIMOTO , Toshizumi TANAKA , Shozo IYAMA
Abstract: An ultrasonic endoscope includes a distal end rigid portion that is located at a distal end of an insertion section; a treatment tool lead-out portion that is disposed on a proximal end side of an ultrasonic transducer and that includes an erecting base housing portion that has an opening whose opening direction is toward one side in a first direction, an opening forming surface in which the opening is formed, and a treatment-tool erecting base that is disposed in an inside of the erecting base housing portion and that changes a lead-out direction of a treatment tool; and an observation window that is disposed in an observation means forming surface located on the proximal end side of the opening forming surface. The position of the observation window in the first direction is located on one side in the first direction relative to a one-side opening position of the opening.
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公开(公告)号:US20180235453A1
公开(公告)日:2018-08-23
申请号:US15871890
申请日:2018-01-15
Applicant: FUJIFILM Corporation
Inventor: Yasuhiko MORIMOTO , Shozo IYAMA
CPC classification number: A61B1/126 , A61B1/00091 , A61B1/00098 , A61B1/00179 , A61B1/018 , A61B1/04 , A61B8/12 , A61B8/4405 , A61B8/445
Abstract: An endoscope includes an insertion part that includes a distal end and a proximal end, a distal-end-portion body that is provided on a distal end side of the insertion part, and an ultrasound transducer that is provided on a distal end side of the distal-end-portion body. The distal-end-portion body includes a pair of walls, a standing base that is disposed in a space formed by the pair of walls and connected to a treatment tool outlet, an observation window that is disposed on one wall of the pair of walls, and a nozzle that is provided on the flat surface opposite to the space across the observation window and ejects washing water to the observation window. The wall surface of the other wall of the pair of walls is positioned on an extension of an ejection direction of the washing water to be ejected from the nozzle.
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公开(公告)号:US20230285615A1
公开(公告)日:2023-09-14
申请号:US18319453
申请日:2023-05-17
Applicant: FUJIFILM Corporation
Inventor: Kojiro KOTANI , Yutaka SENDA , Shozo IYAMA
CPC classification number: A61L2/10 , A61L2/24 , A61B1/121 , A61L2202/24 , A61L2202/11 , A61L2202/122 , A61L2202/121 , A61L2202/16
Abstract: An endoscope sterilization device irradiates a distal end portion of an endoscope with light for sterilization. The endoscope sterilization device includes a housing that has a bottomed tubular shape including an opening portion, a peripheral surface portion, and a bottom surface portion and into which at least a portion of the distal end portion is insertable through the opening portion and a sterilization light source that is provided in the housing and that irradiates the distal end portion inserted into the housing with the light for sterilization.
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公开(公告)号:US20200146536A1
公开(公告)日:2020-05-14
申请号:US16744197
申请日:2020-01-16
Applicant: FUJIFILM Corporation
Inventor: Takashi HARADA , Tomohiro OHKI , Shozo IYAMA
IPC: A61B1/00
Abstract: An endoscope is provided in which an attachment/detachment operation of the proximal end of a wire can be easily performed to/from an erecting operation mechanism and the wire can be prevented from meandering in a wire channel. An endoscope has an operation section 22 provided with an erecting operation lever, and a movable member 96 that moves in association with an operation of the erecting operation lever. The movable member 96 is arranged to be exposed to outside of the operation section 22. A wire 60 has a distal end side coupled to an erecting base, and a proximal end side coupled to an attachment member 98 that is attachable to and detachable from the movable member 96 by a one-touch operation. The wire 60 is configured of a wire body 60A and a gap filling member 60B.
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