Olympus Corporation

Olympus Medical Systems Corporation

Hitachi, Ltd.

Kazuhiko Hino

Takafumi Kubo

Fuminori Wake

Hidetada Sueyasu

Masahiro Mimura

Takuto Yoshinaga

Takashi Sawai

Masanobu Koitabashi

Takeo Suzuki

Masaaki Miyagi

Hidenobu Kimura

Yukiharu Makino

Toru Kuchimaru

Daisuke Matsuka

Momoko Yamanashi

Akihiro Shimazu

Tae Mitsuya

Takeshi Ogura

Takuji Suzuki

Shiho Matsukawa

Tsuyoshi Mandai

Daichi Yamasaka

Shiho Kabasawa

Masahiro Maeda

Chiaki Otahara

Hisao Sakazaki

An endoscope includes, in a distal end frame constituting a distal end portion, an objective optical unit including a voice coil motor that moves a moving lens frame forward and backward in a direction of an optical axis by using a plurality of magnets arranged on a periphery of the moving lens frame, and a plurality of internal components made of magnetic material and arranged around the objective optical unit. At least one of the internal components is arranged at a position where at least a part thereof intersects one of straight lines each connecting an extreme point of one of valleys of a specific isomagnetic line of magnetic fields formed by the magnets and one of two inflection points of the specific isomagnetic line, the two inflection points being located, with the one of the valleys positioned between the two inflection points.

Endoscope and endoscope system

An endoscope apparatus includes: an insertion section; a flow passage; a closed space forming member configured to form a closed space in at least a portion of an intestine; a pump configured to apply pressurization and depressurization to a liquid in the closed space a plurality of times through the flow passage in a state where the liquid is retained in the closed space; a flow passage allowing the liquid in the closed space to which the pressurization and the depressurization are applied the plurality of times through the flow passage to flow out to an outside of the intestine, and a liquid discharge opening.

Endoscope apparatus and method of operating endoscope apparatus

An endoscope includes a connector for connecting a movable body and a long member. The connector includes: an open-close member having a distal end portion and a proximal end portion which are opened or closed by swinging about a predetermined fulcrum, the proximal end portion having a holding portion which holds the long member when the proximal end portion is closed, the distal end portion having an engaging portion which projects outwardly in a radial direction of the distal end portion and is engageable with an inner side of the movable body; and a locking member which moves in a longitudinal direction outwardly in a radial direction of the open-close member, and locks the proximal end portion of the open-close member and the movable body with each other in a state where the long member is held.

Endoscope and method of attaching long member

An endoscope includes: an outer cylinder including an outer cylinder distal end portion held by a distal end holding portion provided inside an insertion section and an outer cylinder proximal end portion held by a proximal end holding portion provided on a proximal end side relative to the distal end holding portion; and an inner cylinder provided inside the outer cylinder, the inner cylinder including inside a wire coupled to a movable portion provided in the insertion section, an amount of stretch of the inner cylinder due to bending of the insertion section being larger than an amount of stretch of the outer cylinder due to the bending, the inner cylinder, in a stretch state where the inner cylinder stretches due to the bending, forming a gap in a longitudinal direction of the outer cylinder between the inner cylinder and the proximal end holding portion.

Endoscope

A hood for endoscope is attached to an endoscope including an insertion portion, a distal end portion and an air-feeding conduit, and the hood for endoscope includes a frame configured to be fitted to an outer circumference of the distal end portion, and a rectification plate configured to, so that gas spurted out forward in a longitudinal axis direction from an air-feeding port flows, changing an orientation in which the gas flows, from the longitudinal axis direction to a circumferential direction of the frame intersecting the longitudinal axis direction by the gas hitting the rectification member, guide the gas in a direction not toward a position of the distal end portion provided with an observation member.

Hood for endoscope and endoscope system

An endoscope includes a first pulling section, an first elongated member, a restricting portion, a sliding surface, and a partition. The restricting portion is provided inside the operation section, and is configured to restrict a position of the first pulling section. The sliding surface is provided in the restricting portion, and allows the first pulling section to move along the axial direction. The partition covers at least a part of the sliding surface and the first pulling section, and is configured to partition the first elongated member and the first pulling section. The partition and the restricting portion are configured to restrict a moving range of the connection portion within a range of the sliding surface.

A technology is provided in which moving objects positioned at a different place and having more than the number of the cameras are displayed on a display device. The present invention is directed to a moving object imaging device including a camera, a deflection unit, a controller configured to control the camera and the deflection unit, an imaging processing part, and an imaging display part, thereby imaging the moving object in a sequentially repeating manner and creating moving image data based upon images acquired by the image processing part to display the created moving image data on the image display part.

Moving object imaging device and moving object imaging method

An optical unit includes: an objective lens unit arranged on a distal end side; an image pickup unit arranged on a proximal end side of the objective lens unit; an optical frame; an image pickup device frame; a proximal-end-side outer circumferential face provided on a proximal end side of the optical frame; an inner circumferential face of a distal-end-side frame body provided on a distal end side of the image pickup device frame; a plurality of notches provided apart in a circumferential direction on an outer circumferential face of one of the frames, the plurality of notches having opening portions on end faces where the optical frame and the image pickup device frame face each other; and holding portions provided on an outer circumferential face of the other frame different from the one frame, the holding portions passing through the opening portions and being accommodated in the notches.

Optical unit

The endoscope apparatus includes an endoscope insertion portion configured to be inserted into a subject and including a distal end portion, a distal end covering portion configured to cover at least an outer periphery of the distal end portion of the endoscope insertion portion and held by the distal end portion, a suction conduit provided with an opening in the distal end covering portion and configured to discharge a fluid including gas generated from an inside of the subject to outside of the subject via the opening, and a positioning portion configured to define a position of the opening of the suction conduit in a rotation direction with a long axis of the endoscope insertion portion as a center when the distal end covering portion is held by the distal end portion of the endoscope insertion portion.

Endoscope apparatus and endoscope system providing angular orientation between overtube and endoscope insertion section inserted in overtube

A stereoscopic endoscope apparatus includes: an image pickup device configured to pick up optical images for a right eye and a left eye; a similarity degree determination portion configured to receive input of an image signal for the right eye and an image signal for the left eye outputted from the image pickup device, and calculate a similarity degree between the image for the right eye and the image for the left eye; and an image signal output portion configured to switch and output a three-dimensional image signal formed of the image signal for the right eye and the image signal for the left eye and a two-dimensional image signal formed of either one of the image signal for the right eye and the image signal for the left eye, based on the similarity degree calculated by the similarity degree determination portion.

Stereoscopic endoscope apparatus and video processor using two images formed by objective optical system

A stereoscopic endoscope apparatus includes: an insertion portion; a variable focus objective optical system; a fixed focus objective optical system; an image pickup section; an image signal generation output section that outputs an image signal for two-dimensional display when a focal length of the variable focus objective optical system and a focal length of the fixed focus objective optical system are different from each other, and outputs an image signal for stereoscopic observation when the focal length of the variable focus objective optical system and the focal length of the fixed focus objective optical system are coincident with each other in the near point observation state.

Stereoscopic endoscope apparatus having variable focus and fixed focus objective optical systems

An operation switching mechanism includes a wire, a reciprocating movement member, a first biasing member, a second biasing member, switching members configured to switch states in which the first biasing member and the second biasing member perform biasing, and an operation member configured to operate the switching members according to operation from an outside and move the reciprocating movement member to a first movement position or a second movement position.

Operation switching mechanism and endoscope

A first housing region A which is provided in the operation portion and in which a bending drive mechanism is housed, a second housing region B which is provided in the operation section and in which a flexible member is housed, and a third housing region C which is provided in the operation portion and in which an electric part is housed are provided, the first housing region A and the second housing region B are located to be lined up in an orthogonal direction Q, and the third housing region C is located to be adjacent to both of the first housing region A and the second housing region B so that a first boundary line Tis orthogonal to a second boundary line T

The dial unit includes a dial including a shaft and being rotatable around the shaft, a detector to detect a rotation amount of the dial, a rotator engaged with the dial and rotatable together with the dial. The dial unit includes a rotation transmission member to keep the dial and the rotator separated from each other before the rotation angle of the dial reaches a first angle and to transmit rotation of the dial to the rotator when the rotation angle exceeds the first angle. The dial unit includes an elastic member which is shaped as a coil-shaped portion and contains the rotator inside the coil-shaped portion. The elastic member applies to the rotator a torque in an opposite direction to a rotational direction of the rotator when the rotator rotates.

Dial unit and introduction apparatus

A substrate connecting structure includes a circuit substrate where an electrical component is installed on the back face, a signal cable into which a plurality of signal transmission lines electrically connected to first signal line connecting portions and to second signal line connecting portions, respectively, are inserted, and a coupling member that is formed by a conductive member including a fixing section disposed at the end portion of the signal cable, a flat section on the front face of the circuit substrate, and a through hole, the coupling member fixing the signal cable and the circuit substrate, wherein the central axis of the signal cable is displaced toward the back face side with respect to the central axis of the circuit substrate.

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Hachioji, Japan

Kazuhiko Hino