Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A digital signature management method includes generating an item of milestone data as a new item of signature target data every time the number of items of signature target data inputted reaches a predetermined value. Each item of signature record data includes a hash value of a corresponding item of signature target data, a hash value of an item of signature target data inputted immediately previously, and a signature for the hash value of the corresponding item of signature target data and the hash value of the item of signature target data inputted immediately previously. Each item of milestone data includes a hash value of at least one item of milestone data generated earlier, and hash values of items of signature record data corresponding to all items of signature target data inputted after generation of an immediately previous item of milestone data.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: An endoscope apparatus includes an insertion portion, a liquid feeding apparatus, an air feeding apparatus, a third flow path, a joining portion, a processor, a distal end portion including an opening from which liquid and air are ejected, and a valve configured to perform a switching operation of flowing and cutoff of the air in the second flow path under operation control of the processor such that the liquid and the air alternately flow in the third flow path.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A moving object imaging device is provided in which an optical axis of a camera is changed by a plurality of movable mirrors having different sizes, and which not only improves image quality but also maintains tracking performance.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: An image processing device is configured to obtain first-type image data and second-type image data generated as a result of taking images of same photographic subject from different directions, and generate a parallax image based on the first-type image data and the second-type image data. The image processing device includes a processor comprising hardware. The processor is configured to: set an image selection mode in which an image is selectable based on an image displayed in a display; superimpose a frame data onto image data to be displayed in the display when the image selection mode is set, the frame data representing a boundary area whose size is set based on an optical system that forms an image of the photographic subject; and obtain the first-type image data and the second-type image data corresponding to selected image when the image selection mode is set.

Abstract: 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.