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公开(公告)号：US12121213B2
公开(公告)日：2024-10-22
申请号：US17105631
申请日：2020-11-27
Applicant: FUJIFILM Corporation
Inventor： Yoshihiro Ueda , Nobuyuki Torisawa , Shozo Iyama
CPC classification number: A61B1/0055 , A61B1/00101 , A61B1/0014 , A61B1/018
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：US09795280B2
公开(公告)日：2017-10-24
申请号：US14339679
申请日：2014-07-24
Applicant: FUJIFILM Corporation
Inventor： Yoshihiro Ueda
CPC classification number: A61B1/00128 , A61B1/00119 , A61B1/015 , A61B1/121
Abstract: An endoscope system includes an endoscope and a cleaning adapter or connector. The endoscope has a port device or end sleeve, to which the cleaning adapter is coupled. The cleaning adapter includes a connector housing and a coupling sleeve, which has a male tapered portion. The connector housing includes a female thread (fastening device) and a guide surface. The port device includes a flange and a male thread. The guide surface guides the port device by contacting the flange. Thus, a male tapered surface or tapered sealing surface is axially aligned with a female tapered surface or tapered bore surface. The male tapered surface tightly contacts the female tapered surface by threaded engagement between the male and female threads. Accordingly, air-tightness or liquid-tightness can be ensured even in use of a plurality of connectors couplable selectively for connecting a related apparatus.
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公开(公告)号：US12213692B2
公开(公告)日：2025-02-04
申请号：US17665729
申请日：2022-02-07
Applicant: FUJIFILM Corporation
Inventor： Yoshihiro Ueda , Keiichiro Takahashi , Jun Sato
IPC: A61B17/29
Abstract: A treatment tool for an endoscope includes an operating part and a transmitting part that transmits an operation of the operating part to a grip part of a distal end part and a bendable part. The operating part has an operating member that is movable in a first direction and a second direction orthogonal to the first direction. The transmitting part has a first transmitting member that is moved to an operating part side based on an operation of the operating member in the first direction and closes the grip part and a second transmitting member that is moved to the operating part side based on an operation of the operating member in the second direction and bends the bendable part.
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公开(公告)号：US12035891B2
公开(公告)日：2024-07-16
申请号：US16940367
申请日：2020-07-27
Applicant: FUJIFILM Corporation
Inventor： Takumi Dejima , Yoshihiro Ueda
CPC classification number: A61B1/018 , A61B1/0057 , A61B1/0661 , A61B17/29 , A61B1/00009 , A61B2017/00862 , A61B2017/2927 , A61B18/1445
Abstract: An endoscope treatment tool includes an insertion part that is insertable into a first treatment tool channel of an endoscope of an endoscope system, an operation part, and a single operation wire pulled through operation of the operation part. The insertion part includes a distal end portion that has an openable and closable grip portion, a bending portion that is able to be bent, and a connecting-portion that connects the bending portion to the operation part. The connecting-portion is moved forward and backward along a longitudinal axis of the connecting-portion and is rotated about the longitudinal axis. As the connecting-portion is moved forward and backward or is rotated, the grip portion moves forward and backward or rotates, through the operation of the operation part. As the operation wire is pulled, the grip portion is closed, and the bending portion bends in a state where the grip portion is closed.
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Patent Agency Ranking
公开(公告)号：US10653303B2
公开(公告)日：2020-05-19
申请号：US15345477
申请日：2016-11-07
Applicant: FUJIFILM Corporation
Inventor： Takuro Asaoka , Yoshihiro Ueda
Abstract: Provided are an endoscope and a hardness adjustment device configured so that an arrangement space of built-in components in an operation portion can be ensured and that burden on a coil spring and a wire can be reduced. In an operation portion, a retained portion of a coil spring unit is retained at a first radial position by a coil spring holder as a first retainer, and a base end portion of a wire unit is retained at a second radial position by a wire holder as a second retainer. A base end portion of the coil spring unit is retained at a third radial position by a coil spring contact portion as a third retainer.
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公开(公告)号：US12096912B2
公开(公告)日：2024-09-24
申请号：US17170814
申请日：2021-02-08
Applicant: FUJIFILM Corporation
Inventor： Yoshihiro Ueda
CPC classification number: A61B1/0011 , A61B1/005 , A61B1/018 , A61B1/015 , A61B1/05
Abstract: Provided is an endoscope tube that has flexibility to withstand use in a flexible endoscope even in a case where the diameter is increased and easily detects damage to a fluororesin layer that forms an inner peripheral surface. The endoscope tube 100 includes an airtight inner layer tube member 101 that is made of a fluororesin, a permeable outer layer member 102 that has a hardness lower than that of the inner layer tube member 101 and covers an outer peripheral surface of the inner layer tube member 101, and a coil-shaped reinforcing member 103 that is wound around a spiral groove part 104 formed on an outer peripheral surface of the outer layer member 102. The endoscope 2 includes a treatment tool insertion channel 23 formed by the endoscope tube 100 in an insertion part 10.
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公开(公告)号：US11877726B2
公开(公告)日：2024-01-23
申请号：US17138911
申请日：2020-12-31
Applicant: FUJIFILM Corporation
Inventor： Yoshihiro Ueda , Nobuyuki Torisawa , Shozo Iyama
CPC classification number: A61B1/00119 , A61B1/00101 , A61B1/00128 , A61B1/00147 , A61B1/015 , A61B1/018
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：US11445889B2
公开(公告)日：2022-09-20
申请号：US16516265
申请日：2019-07-19
Applicant: FUJIFILM Corporation
Inventor： Yoshihiro Ueda
Abstract: An endoscope aid attachably and detachably attached to a treatment tool insertion channel of an endoscope includes a flexible tubular-member longer than a total length of the treatment tool insertion channel. The tubular-member has a treatment tool insertion pipe line and a suction pipe line. A distal end part of the tubular-member has a sliding contact part that has an outer periphery coming in sliding contact with an inner peripheral surface of an outlet portion of the treatment tool insertion channel maintained in the shape of a straight pipe irrespective of bending of a bending part of the endoscope and is disposed in the outlet portion, and an extending part that extends from the sliding contact part to a distal end side and is disposed to protrude from an outlet of the treatment tool insertion channel. A distal-end-side opening of the suction pipe line is provided in the extending part.
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公开(公告)号：US09839345B2
公开(公告)日：2017-12-12
申请号：US14496484
申请日：2014-09-25
Applicant: FUJIFILM Corporation
Inventor： Yoshihiro Ueda
CPC classification number: A61B1/0057 , A61B1/00078 , A61B1/005
Abstract: In an endoscope, a flexible device of an elongated tube has a variable stiffness device. The variable stiffness device includes a movable control wire and a coil spring, to which compression force is applied to change stiffness. There occur changes in stiffness of the flexible device in plural radial directions of the coil spring at an equal point in an axial direction. The variable stiffness device is so constructed that a difference between maximum and minimum levels of stiffness of the variable stiffness device is set at most 0.2 time as much as stiffness of the flexible device with internal structures other than the variable stiffness device. Thus, unexpected grip feeling in manipulation of an operator at the time of advance can be removed in relation to undulating motion of the coil spring.
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