公开(公告)号：US11910996B2

公开(公告)日：2024-02-27

申请号：US16744190

申请日：2020-01-16

Applicant: FUJIFILM Corporation

Inventor： Takashi Harada ,  Toshizumi Tanaka

IPC: A61B1/00

CPC classification number: A61B1/00042 ,  A61B1/00098 ,  A61B1/00133

Abstract: An endoscope is provided in which an attachment/detachment operation of the proximal end of a wire is easily performed to/from an erecting operation mechanism and leakage of current to the outside can be prevented. An endoscope has an operation section 22 provided with an erecting lever, and a movable member 96 that moves in association with an operation of the erecting lever. The movable member 96 is arranged to be exposed to the outside of the operation section 22. A wire 60 is, at a distal end side thereof, coupled to an erecting base, and, at a proximal end side thereof, coupled to an attachment member 98 that is attachable to or detachable from the movable member 96 by a one-touch operation. The wire 60 includes a wire body 60A, and an insulating coat 60B coating a wire exposure region L.

公开(公告)号：US11839355B2

公开(公告)日：2023-12-12

申请号：US16932837

申请日：2020-07-20

Applicant: FUJIFILM Corporation

Inventor： Takashi Harada

IPC: A61B1/00 ,  A61B1/018

CPC classification number: A61B1/00098 ,  A61B1/0014 ,  A61B1/00052 ,  A61B1/00101 ,  A61B1/00133 ,  A61B1/018 ,  A61B1/00066

Abstract: There is an endoscope that allows operations for attaching and detaching the proximal end of a wire to and from an elevating operation mechanism to be easily performed, can reduce the influence of variations of the length of a soft part and the length of an operation wire, and can adjust an operating range of an elevating operation lever for an elevator. The endoscope includes: an operation unit that is provided with an operation member; an insertion unit that is provided on a distal end side of the operation unit and is to be inserted into an object to be examined; a treatment tool-elevator that is provided in a distal end part of the insertion unit; a rotating body that is disposed to be exposed to an outside of the operation unit and operates in conjunction with an operation of the operation member; a movable member that is attachably and detachably connected to the rotating body; a position adjustment member that is capable of adjusting a connection position of the movable member in a rotation direction of the rotating body; an elevating operation wire, of which a distal end side is connected to the treatment tool-elevator and a proximal end side is connected to the movable member and which causes the treatment tool-elevator to operate by being pushed or pulled according to an operation of the movable member; and a mounting member that is provided at a proximal end of the elevating operation wire and is attachably and detachably engaged with the movable member.

公开(公告)号：US20200345210A1

公开(公告)日：2020-11-05

申请号：US16932837

申请日：2020-07-20

Applicant: FUJIFILM Corporation

Inventor： Takashi Harada

IPC: A61B1/00 ,  A61B1/018

Abstract: There is an endoscope that allows operations for attaching and detaching the proximal end of a wire to and from an elevating operation mechanism to be easily performed, can reduce the influence of variations of the length of a soft part and the length of an operation wire, and can adjust an operating range of an elevating operation lever for an elevator. The endoscope includes: an operation unit that is provided with an operation member; an insertion unit that is provided on a distal end side of the operation unit and is to be inserted into an object to be examined; a treatment tool-elevator that is provided in a distal end part of the insertion unit; a rotating body that is disposed to be exposed to an outside of the operation unit and operates in conjunction with an operation of the operation member; a movable member that is attachably and detachably connected to the rotating body; a position adjustment member that is capable of adjusting a connection position of the movable member in a rotation direction of the rotating body; an elevating operation wire, of which a distal end side is connected to the treatment tool-elevator and a proximal end side is connected to the movable member and which causes the treatment tool-elevator to operate by being pushed or pulled according to an operation of the movable member; and a mounting member that is provided at a proximal end of the elevating operation wire and is attachably and detachably engaged with the movable member.

公开(公告)号：US11925316B2

公开(公告)日：2024-03-12

申请号：US16826300

申请日：2020-03-23

Applicant: FUJIFILM Corporation

Inventor： Takashi Harada

IPC: A61B1/00 ,  A61B1/012 ,  A61B1/018

CPC classification number: A61B1/00098 ,  A61B1/00042 ,  A61B1/00066 ,  A61B1/00105 ,  A61B1/00137 ,  A61B1/012 ,  A61B1/018

Abstract: Provided is an endoscope that can easily perform the attachment and detachment work of a proximal end side of a wire with respect to a slider.
An endoscope includes a base member (98) that forms a slider housing space (150) that is independent of an internal space of an operating part (22), an opening part (94) that is provided at a proximal end of a wire channel (62) and delivers the proximal end side of the wire (60) to a slider housing space (150), a slider (96) that is disposed in the slider housing space (150) and moves in a longitudinal direction of the operating part (22) depending on the operation of an erection operating lever (20) so as to be movable forward and backward, an engaged part (152) that is provided in the slider (96) and recessed toward a lateral side orthogonal to a movement direction of the slider (96), and an engaging member (154) that is provided at the proximal end of the wire (60) and is pushed into and engageable with the engaged part (152) from the lateral side.

公开(公告)号：US11918181B2

公开(公告)日：2024-03-05

申请号：US16744182

申请日：2020-01-16

Applicant: FUJIFILM Corporation

Inventor： Takashi Harada

IPC: A61B1/00

CPC classification number: A61B1/00066 ,  A61B1/00042 ,  A61B1/00098 ,  A61B1/00133

Abstract: An endoscope is provided in which an attachment/detachment operation of the proximal end of a wire is easily performed to/from an erecting operation mechanism. An endoscope 10 according to the present invention includes an operation section 22 provided with an erecting operation lever 20; an insertion section 24 provided on a distal end side of the operation section 22; an erecting base 30 provided at a distal end part 26 of the insertion section 24; a movable member 96 that is arranged to be exposed to outside of the operation section 22 and that moves in association with an operation of the 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 in accordance with a movement of the movable member 96 to move the erecting base 30; and an attachment member 98 that is provided at a proximal end of the wire 60 and that is engaged with the movable member in an attachable/detachable manner by a one-touch operation.

公开(公告)号：US10786140B2

公开(公告)日：2020-09-29

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

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

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.

公开(公告)号：US12251080B2

公开(公告)日：2025-03-18

申请号：US17675133

申请日：2022-02-18

Applicant: FUJIFILM Corporation

Inventor： Takashi Harada

IPC: A61B1/00 ,  A61B1/018

Abstract: Provided is an endoscope including a cap that can suppress deformation due to a load and that is easily removable. The endoscope incudes a distal-end-portion body and a cap that is removably attached to the distal-end-portion body and that has an open window. The cap includes a cantilever piece that is formed on a wall portion on at least one of sides facing each other with the open window therebetween and that elastically bends, the cantilever piece having a fixed end and a free end and the cantilever piece including a stopper-target portion that is provided at the free end. The distal-end-portion body includes a stopper portion on a side facing the cantilever piece, the stopper portion engaging with the stopper-target portion. The stopper-target portion is removable from the stopper portion.

公开(公告)号：US12185914B2

公开(公告)日：2025-01-07

申请号：US17744741

申请日：2022-05-16

Applicant: FUJIFILM Corporation

Inventor： Takashi Harada

IPC: A61B1/00

Abstract: Provided are a distal end cap detachment jig and an endoscope capable of simply and easily detaching a distal end cap from a distal end portion body.
A distal end cap detachment jig that is used to detach, from a distal end portion body of an endoscope insertion part, a distal end cap which is attachable to and detachable from the distal end portion body and which is provided with a locking portion for mounting capable of being locked to the distal end portion body when the distal end cap is mounted on the distal end portion body, the distal end cap detachment jig including: a jig body having an accommodation space portion of which one end is provided with an opening portion; a locking release portion provided in the jig body; and a holding portion provided in the jig body, in which in a case where the distal end cap is accommodated in the accommodation space portion, the locking release portion is in a locking release state in which locking of the locking portion with respect to the distal end portion body is released and the holding portion is in a holding state in which the distal end cap is held by the holding portion, to make the distal end cap integral with the jig body so that the distal end cap is capable of being pulled out from the distal end portion body.

公开(公告)号：US12133627B2

公开(公告)日：2024-11-05

申请号：US17374172

申请日：2021-07-13

Applicant: FUJIFILM Corporation

Inventor： Takashi Harada

IPC: A61B1/00 ,  A61B1/018

Abstract: Provided are an endoscope and a mounting component which are capable of safely detaching a distal end cap from a distal-end-portion body.
An endoscope includes an operation part that is provided with an operation member; an insertion part that is provided on a distal end side of the operation part and is inserted into an object to be examined; an elevator that is provided in a distal end portion of the insertion part; a distal end cap that is mounted on the distal end portion and has an inner space communicating with a cap opening; an elevating operation wire of which a distal end side is connected to the elevator and which is pushed and pulled in response to operation of the operation member to operate the elevator; a wire channel through which the elevating operation wire is inserted; and a mounting component that is attachably and detachably mounted on the operation part, in which the mounting component has a wire fixing section that mechanically connects the operation member and the elevating operation wire to each other, and a jig section capable of detaching the distal end cap from the distal end portion.

公开(公告)号：US20240324860A1

公开(公告)日：2024-10-03

申请号：US18603195

申请日：2024-03-12

Applicant: FUJIFILM Corporation

Inventor： Takashi Harada

IPC: A61B1/005

CPC classification number: A61B1/0052 ,  A61B1/0057

Abstract: An endoscope includes: a rotation operating part that is rotatably provided on an endoscope operation unit and that moves a bending operation wire forward and backward by being rotationally operated; an engaging part that frictionally engages with the rotation operating part; and a pressing part that is movable between a braking position coming into contact with the engaging part and a non-braking position positioned on a distal side with respect to the engaging part from the braking position. The rotation operating part and the engaging part are integrally rotatable in a case where the pressing part is positioned at the non-braking position, and the rotation operating part and the engaging part are relatively rotatable in a case where the pressing part is positioned at the braking position.