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公开(公告)号：US20240302643A1
公开(公告)日：2024-09-12
申请号：US18423328
申请日：2024-01-26
Applicant: FUJIFILM Corporation
Inventor： Takuro ASAOKA
CPC classification number: G02B23/243 , A61B1/00188 , H04N23/54 , H04N23/55 , H04N23/555
Abstract: Provided are an endoscope imaging device and an endoscope in which drive malfunction of a lens drive unit is suppressed.
An endoscope imaging device includes, on a distal end side, a plurality of lenses that include a first movable lens which is movable along an optical axis direction, and a sensor that captures a subject image formed by the plurality of lenses. The endoscope imaging device includes a lens accommodating portion that accommodates the first movable lens, a housing that is disposed alongside the lens accommodating portion as viewed from the optical axis direction, a coupling portion that couples the lens accommodating portion and the housing to each other in a state in which the lens accommodating portion and the housing communicate with each other, a lens drive unit that is accommodated in the housing, a receiving portion that is provided at an end part of the housing or an end part of the lens accommodating portion in an extension direction of the coupling portion, a pressing member that is provided at the end part of the lens accommodating portion or the end part of the housing facing the receiving portion in the extension direction and presses the lens accommodating portion or the housing, a first restricting portion that restricts a position of the lens accommodating portion in a cross direction crossing the extension direction, and a second restricting portion that restricts a position of the housing in the cross direction.-
公开(公告)号：US20230309806A1
公开(公告)日：2023-10-05
申请号：US18188285
申请日：2023-03-22
Applicant: FUJIFILM Corporation
Inventor： Kazuaki TAKAHASHI , Takuro ASAOKA
CPC classification number: A61B1/05 , A61B1/00096 , A61B1/00163
Abstract: Provided are an endoscope image pickup device and an endoscope capable of realizing a firm fixation and a stable connection strength.
There is provided an endoscope image pickup device that acquires an image of an observation target, the endoscope image pickup device including: a lens barrel provided with an internal image pickup lens; an image pickup element that receives light which has passed through the image pickup lens to perform photoelectric conversion; a holder that holds the lens barrel; a signal cable electrically connected to the image pickup element; and a connecting member that connects the holder and the signal cable to each other. The holder and the connecting member are engaged with each other at an engaging portion, and the engaging portion is provided with an adhesive layer containing a filler.-
公开(公告)号：US20250057403A1
公开(公告)日：2025-02-20
申请号：US18801995
申请日：2024-08-13
Applicant: FUJIFILM Corporation
Inventor： Takuro ASAOKA , Makoto SUGIZAKI
Abstract: An endoscope includes an insertion part including an imaging optical system, a tubular support member, an imaging element, a first circuit substrate, a second circuit substrate, a cable, a covering member, and a distal end member as defined herein, the support member includes a circular tubular portion having a circular tubular shape that supports the imaging optical system and a rectangular tubular portion having a rectangular tubular shape that supports the imaging element, the circular tubular portion is supported by the hole portion of the distal end member, a clearance is provided between the distal end member and the covering member or the rectangular tubular portion of the support member, the covering member covers at least a part of the rectangular tubular portion, and a diameter of a circumscribed circle of the rectangular tubular portion is equal to or larger than an outer diameter of the circular tubular portion.
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4.发明申请公开(公告)号：US20190246886A1
公开(公告)日：2019-08-15
申请号：US16392551
申请日：2019-04-23
Applicant: FUJIFILM Corporation
Inventor： Takashi HARADA , Takuro ASAOKA
CPC classification number: A61B1/018 , A61B1/0011 , A61B1/00128 , A61B1/00177 , A61B1/12 , A61B1/273
Abstract: According to a endoscope, an engaging part delivered from a delivery port advances while being guided to an opening of a housing part by an engagement guide path. Then, as the engaging part comes into contact with a deformation generating part, the engaging part is moved in a direction from a bottom surface of the housing part toward the opening, and thereby, the wire is elastically deformed. Then, in a case where the engaging part that advances within the engagement guide path has passed by the deformation generating part, the engaging part is housed in the housing part from the opening by a restoring force of the wire.
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Patent Agency Ranking
公开(公告)号：US20170127910A1
公开(公告)日：2017-05-11
申请号：US15345477
申请日：2016-11-07
Applicant: FUJIFILM Corporation
Inventor： Takuro ASAOKA , Yoshihiro UEDA
IPC: A61B1/005
CPC classification number: A61B1/0052 , A61B1/0055 , A61B1/0057
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：US20170113263A1
公开(公告)日：2017-04-27
申请号：US15299449
申请日：2016-10-20
Applicant: FUJIFILM Corporation
Inventor： Takuro ASAOKA , Yoshihiro UEDA
CPC classification number: B21F35/00 , A61B1/0011 , A61B1/0055 , A61B1/0057
Abstract: A plastic deformation method of a tightly wound coil spring includes a regulating process and a plastic deformation process. In the regulating process, a tightly wound coil spring is inserted into a pipe, and deformation of the tightly wound coil spring in a tightly wound coil spring radial direction is regulated by the pipe. In the plastic deformation process, a compression force is applied to the tightly wound coil spring inserted into the pipe from one end or both ends in a tightly wound coil spring axial direction. Then, a rod is inserted into the pipe from a left-end opening portion of the pipe, and the compression force is applied to the tightly wound coil spring by a pressing force of the rod.
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公开(公告)号：US20240293017A1
公开(公告)日：2024-09-05
申请号：US18444738
申请日：2024-02-18
Applicant: FUJIFILM Corporation
Inventor： Motoki NOKO , Takuro ASAOKA
Abstract: An endoscope includes an imaging device that includes a lens barrel and an imaging unit, a distal end part body that has an insertion hole into which the lens barrel is inserted, and an extending part that is provided by being extended from a proximal end surface of the distal end part body, in which the imaging device includes, in a state in which the lens barrel is inserted into the insertion hole, an exposed part that is exposed from the proximal end surface of the distal end part body, and the extending part is disposed at a position facing at least the exposed part of the imaging device.
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公开(公告)号：US20240081620A1
公开(公告)日：2024-03-14
申请号：US18358971
申请日：2023-07-26
Applicant: FUJIFILM Corporation
Inventor： Takuro ASAOKA , Takeshi YUKIIRI
CPC classification number: A61B1/00096 , A61B1/012 , A61B1/051 , A61B1/0669
Abstract: Provided is an endoscope with a narrower diameter at a distal end portion of an insertion part to be inserted into a body of a subject.
The endoscope includes: a forceps port; and an imaging unit, in which the forceps port and the imaging unit are disposed side by side at a distal end of the endoscope, the imaging unit includes an imaging lens, an imaging element having a light-receiving surface disposed parallel to an optical axis of the imaging lens, an optical element that bends the optical axis of the imaging lens by 90° to make light that has transmitted through the imaging lens incident on the imaging element, and a holder that holds the imaging lens and the optical element, a forceps pipe connected to the forceps port is disposed on a light-receiving surface side of the imaging element, in a case in which the imaging unit is viewed in a first direction perpendicular to the light-receiving surface of the imaging element, a central axis of the imaging element that passes through a center of an outer shape of the imaging element and is parallel to the optical axis is located closer to a forceps port side than the optical axis is, a part of the forceps pipe connected to the forceps port overlaps the light-receiving surface of the imaging element, and a central axis of the forceps pipe is located outside the imaging element. On a plane that passes through the optical axis and is parallel to the light-receiving surface, a part farthest from the optical axis is opposite to the central axis of the imaging element with respect to the optical axis in a case in which the imaging unit is viewed in the first direction.-
公开(公告)号：US20230131639A1
公开(公告)日：2023-04-27
申请号：US18069154
申请日：2022-12-20
Applicant: FUJIFILM Corporation
Inventor： Hideyuki YAMADA , Takuro ASAOKA
Abstract: An image pickup device that is provided at a distal end portion of an insertion unit of an endoscope having a longitudinal axis, includes: a first lens barrel that houses a first optical system; a second lens barrel that is disposed on a proximal end side of the first lens barrel, houses a second optical system on which light having passed through the first optical system is to be incident, and includes a second lens barrel-distal end portion that is a distal end portion having a diameter smaller than a diameter of a first lens barrel-proximal end portion which is a proximal end portion of the first lens barrel; a sliding part that is provided around an outer peripheral surface of the second lens barrel-distal end portion and that is in contact with the first lens barrel-proximal end portion; and a pressing member that is externally fitted over the sliding part from the first lens barrel-proximal end portion. The pressing member includes a pressing member-inner peripheral surface that is in contact with both an outer peripheral surface of the first lens barrel-proximal end portion and an outer peripheral surface of the sliding part, and a movement restricting portion that restricts a movement of the sliding part in an axial direction of the longitudinal axis between the first lens barrel-proximal end portion and the movement restricting portion.
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