Abstract: An information presentation system including a tubular system including a flexible tubular insertion portion configured to be inserted into an insertion subject, a storage medium configured to store a plurality of pieces of presentation information recognizable by a non-operator, a non-operator presentation display configured to present information in an output form recognizable by the non-operator and a processor including hardware, the processor configured to perform a selection of presentation information to be presented to the non-operator presentation display, and switch a presentation period of the selected presentation information to the non-operator presentation display.

Abstract: An endoscope system includes an illuminator configured to switch between a first illumination light and a second illumination light for which a ratio of a quantity of light is 1/?, an objective optical system, an image sensor, an optical path splitter which is disposed between the objective optical system and the image sensor, the optical path splitter has an optical path splitting surface, a first reflecting surface, and a second reflecting surface. A processor acquires for each of the first illumination light and the second illumination light, a first image pickup signal and a second image pickup signal, combines the first image pickup signal and the second image pickup signal for the first illumination light and the first image pickup signal and the second image pickup signal for the second illumination light, and generates an image of a high dynamic range. Here, ? denotes a coefficient.

Abstract: An endoscope system having: a transmission cable electrically connecting an actuator that moves an optical element along an optical axis direction and a driving signal generator for generating and supplying a driving signal for driving the actuator; a detector configured to detect magnitude of the driving signal output from the driving signal generator to be supplied to the actuator through the transmission cable; and a processor configured to supply the driving signal with an initial driving voltage value to the actuator for a predetermined time, calculate a combined resistance value including a resistance value of the transmission cable and a resistance value of the actuator, based on at least the detected magnitude of the driving signal, calculate a driving voltage of the actuator, based on the calculated combined resistance value and a preset rated current value of the actuator, and cause a storage to record the calculated driving voltage.

Abstract: A method of operating a power source device for a high-frequency treatment instrument adapted to perform high-frequency treatment for biological tissue includes causing a high-frequency power source circuit to output power; setting a target impedance value which gradually increases from a change-over impedance value to a stop impedance value; regularly comparing a measured impedance value to the target impedance value; causing the high-frequency power source circuit to lower the power by a first ratio if the measured impedance value is greater than the target impedance value, and to raise the power by a second ratio if the measured impedance value is smaller than the target impedance value; and causing the high-frequency power source circuit to terminate the output upon the value for impedance reaching the stop impedance value.

Abstract: A light source system includes an illumination device configured to generate illumination light, and a light source module having a function of supplying light to the illumination device and configured to be detachably attached to the illumination device. The illumination device includes a first light source and a first storage configured to store characteristic information of the first light source. The light source module includes a second light source and a second storage configured to store characteristic information of the second light source. The illumination device includes a control circuit configured to determine a driving condition of at least one of the first and second light sources, based on the characteristic information of the first and second light sources.

Abstract: The disclosed technology is directed to a method of operating a treatment tool for excising a lesioned portion of a body tissue. The method comprises applying a treatment tool to the lesioned portion. The treatment tool includes an elongated sheath having a snare wire disposed therein. The snare wire is configured to be movable forward or backward along a longitudinal direction. Next, forming the snare wire into a loop and tilting the loop in a plane transverse to the longitudinal axis of the elongated sheath with a force tending to push a snare wire portion out of a distal-end opening of the elongated sheath. And finally, placing the loop around the lesioned portion of the body tissue to excise the lesioned portion in a state in which the snare wire positioned transverse to the lesioned portion.

Abstract: An evaluation assistance method includes: acquiring a first image to be used for performance evaluation of trained models; generating a plurality of second images, each of the plurality of second images being a result of processing the first image by each of a plurality of trained models; and displaying each of the plurality of trained models in association with a corresponding second image of the plurality of second images.

Abstract: An endoscopic device includes a manipulator body and an insertion portion including opposed respective proximal and distal ends. The insertion portion is connected to the manipulator body via the proximal end. A first heat generator is configured to be attached to the manipulator body. A heat radiator is configured to be detachably attached to the manipulator body and is thermally connected to the first heat generator. The heat radiator includes at least one air inlet port through which air flows in and at least one air outlet port having an area smaller than an area of the at least one air inlet port.

Abstract: Provided is a method of molding an optical element to obtain the molded optical element. The method includes: preparing a die set including an upper die having an upper molding surface, a lower die having a lower molding surface, a side die in which a through hole is formed, and a sleeve configured to accommodate the upper die, the lower die, and the side die; disposing a mold material on the lower molding surface after inserting the lower die into the through hole of the side die; heating the mold material; press molding the mold material with the upper die and the lower die to integrally move the side die and the lower die with respect to the upper die and the sleeve; and pushing the optical element upward by raising the lower die with respect to the side die and the sleeve.

Abstract: An endoscope valve for switching connection states of a plurality of conduits formed in an endoscope includes: a cap including a leak hole through which a gas flowing via the conduit is dischargeable to an outside; and a shaft whose one end is connected to the cap, the shaft having a rod shape, extending in a longitudinal direction, and including: a main body portion including a hole portion forming a hollow space and a communication hole extending in a direction intersecting the longitudinal direction of the shaft and communicating with the hole portion and an outside; and a seal member including a protrusion portion provided in the hole portion and the communication hole, the protrusion portion protruding in the intersection direction from the communication hole.

Abstract: An ultrasound transducer includes: a tube; a transducer cable which is fixed to an end portion side of the tube and close to an outer periphery of the tube; a plurality of piezoelectric elements which are arranged along a circumferential direction surrounding a central axis of the tube to face an outer peripheral surface of the tube, each piezoelectric element being configured to output an ultrasound wave according to an electric signal input from the transducer cable, and convert an ultrasound wave input from an external portion into an electric signal; and a plurality of relays which are electrically connected respectively to a plurality of signal lines included in the transducer cable and the plurality of piezoelectric elements, the relays being configured to relay the plurality of signal lines and the plurality of piezoelectric elements.

Abstract: An imaging element includes: a pixel portion in which a plurality of pixels are disposed in a two-dimensional matrix; and a color filter including a plurality of filters that have different spectral transmission characteristics from each other in each of a visible region and a near-infrared region and that are disposed on the plurality of pixels, each filter corresponding to each pixel, any one or more of the plurality of filters being configured to transmit light in the near-infrared region, the plurality of filters including a first same-color filter and a second same-color filter which have different transmission wavelength characteristics from each other in a same color wavelength band, have a region with a constant spectral transmittance in each of the visible region and the near-infrared region, and have different spectral transmittances from each other in at least one of the visible region and the near-infrared region.

Abstract: An optical system for use with a stereo video endoscope with a fixed lateral viewing direction. The optical system including: a laterally-viewing distal optical assembly; and a proximal optical assembly, the distal optical assembly and proximal optical assembly jointly establishing a beam path, the proximal optical assembly including: a left channel lens system; and a right channel lens system similarly configured to the left channel lens system; wherein the distal optical assembly establishes an optical axis and is configured to couple incident light along the beam path from an object space into the left channel lens system and into the right channel lens system of the proximal optical assembly; and the optical system comprises an angle-selective optical element with a surface oriented perpendicular to the optical axis of the distal optical assembly, the surface being located in the beam path and coated with an incidence-angle-selective dielectric coating.

Abstract: An energy treatment device includes a movable handle including a jaw and a first through hole, an elongated member, and a sheath including a hollow portion and a second through hole, wherein the hollow portion is configured to receive the elongated member. The second through hole is configured to extend so as not to overlap with the hollow portion. The movable handle is configured to rotate about an axis which is configured to pass through the first through hole and the second through hole such that the jaw is rotatable with respect to the sheath, and (D1+D2)/2<L1 is satisfied, where D1 is a diameter of the hollow portion, D2 is a diameter of the first through hole, and L1 is a distance between a central position of the hollow portion and a central position of the first through hole in an opening/closing direction of the jaw.

Abstract: A medical image recording control apparatus includes a processor, a video source switching instruction circuit, and a video source switching device. The processor detects states of a plurality of devices and determines, from a detection result of the states of the plurality of devices, based on states of two or more devices including at least one of a room light, a surgical light, and a light source apparatus for endoscope included in the plurality of devices, a priority level of at least one video source device among a plurality of video source devices included in the plurality of devices. The video source switching instruction circuit generates a switching instruction signal corresponding to the determined priority level. The video source switching device receives the switching instruction signal, switches a video signal outputted to a video signal corresponding to the switching instruction signal, and outputs the video signal.

Abstract: An endoscope system includes a light source configured to generate either one of first illumination light and second illumination light, an image pickup apparatus configured to obtain an image by picking up an image of an object, and a processor. The processor is configured to make an instruction to set an observation mode of the endoscope system at either one of a first observation mode and a second observation mode, detect an observation state at a time of observing the object based on a feature value calculated from pixel values included in pixels forming a first image, and invalidate an instruction to set the observation mode of the endoscope system at the second observation mode when the observation state at the time of observing the object is not an appropriate observation state.

Abstract: An optical module for endoscope includes an optical element, an optical fiber, a ferrule including a first principal surface, a second principal surface, and a side surface, an opening of an insertion hole being present on the first principal surface, the insertion hole having a bottom surface made of a transparent material, the optical fiber being inserted into the insertion hole, the optical element being bonded to the second principal surface, an opening of a groove connected to the insertion hole being present on the first principal surface, the grove having a bottom surface made of the transparent material, and transparent resin disposed in the insertion hole and the groove of the ferrule.

Abstract: An endoscope includes: an internal conductor that is formed of a conductive material; an external conductor that is electrically insulated from the internal conductor and is formed of a conductive material that configures a part of an exterior; a holder that holds a first conductor that is electrically connected to the internal conductor and a second conductor that is electrically connected to the external conductor such that the first conductor and the second conductor are separated from each other by a space with a predetermined spatial distance; and a water-tightness holding member that holds water-tightness in the space.

Abstract: An optical system for a stereo video endoscope including: first and second lens system channels each having optical elements in identical configurations, the optical elements being arranged in a same position along first and second optical axes, respectively, an optical axis of first and second optical elements coincide with the first and second optical axes, respectively, first and second cross-sectional areas of the first and second optical elements are inscribed in first and second circumferential circles, respectively, centers of first and second circumferential circles each coincide with the first and second optical axes, respectively, to define a maximum radius of the first optical element and the second optical element, the first and second circumferential circles overlap one another, and circumferential shapes of the first and second optical elements deviate from the first and second circumferential circles circumscribing them such that the first and second optical elements do not contact.

Abstract: Examples of the present subject matter provide techniques for measuring thicknesses of materials using one or more acquisition cycles. The data from the one or more acquisition cycles may be amplified using a specified gain across the signal response, converted to a digital signal, and stored in a memory. The digital signal may be retrieved from memory, and signal processing techniques using one or more time-variable threshold(s) may be used to calculate one or more thickness(es) of the testing object.

Abstract: An operation switch includes a concave portion in which an inner peripheral surface is constituted by a first inclined surface that is reduced in diameter toward a bottom portion from an external surface of a frame and a cylindrical portion that is formed in a pressing type operation button mounted on the concave portion and in which an outer peripheral surface is constituted by a second inclined surface that has a gradient larger than a gradient of the first inclined surface and faces the inner peripheral surface of the concave portion.

Abstract: A disclosed image processing apparatus includes a processor comprising hardware, the processor being configured to obtain a plurality of temporally continuous images generated by continuously imaging a subject illuminated with illumination light; calculate a correction coefficient on the basis of a correction target frame among the plurality of images; revise the correction coefficient of the correction target frame on the basis of the correction coefficient of each of a plurality of frames within a predetermined time set beforehand from a shooting time of the correction target frame; and create a display image on the basis of the correction target frame and the correction coefficient.

Abstract: An endoscope includes: a plurality of wires each having a distal end connected to a bending portion of an insertion portion and a proximal end extending into an operation portion; one or more tubular members provided on the operation portion and including a first part extending in a direction of a longitudinal axis of the insertion portion, a second part provided on a proximal end side of the first part and extending in a side direction to the longitudinal axis, and a bent part connecting the first part and the second part, any one of the plurality of wires being inserted into the one or more tubular members, the first part and the second part being fixed to the operation portion; and a stopper fixed in the operation portion and arranged to prevent movement of the bent part by abutting on an inside of bending of the bent part.

Abstract: An endoscope system includes an endoscope including a control section, an insertion section, and a light guide member, a light source configured to emit light guided by the light guide member, a failure-cause detecting circuit configured to detect a pre-failure state that causes a failure of the endoscope, and a light source controller configured to control an output of the light source based on a detection result of the failure-cause detecting circuit. The failure-cause detecting circuit includes a cause predicting circuit configured to detect a second pre-failure state in which it is predicted that the endoscope reaches a first pre-failure state that directly causes the failure of the endoscope. The light source controller controls the output of the light source based on a detection result of the cause predicting circuit.

Abstract: A diagram based visual procedure note writing, in one aspect, presents an image representing a structure on a user interface display. A plurality of objects is presented on the user interface display. Responsive to an object being placed onto the image of the structure, metadata associated with the object is updated based on region information associated with a position where the object is placed onto the image. The updated metadata is presented on the user interface display. A note is composed based on the updated metadata.

Abstract: An endoscope system includes an illuminator comprising a light source adapted to emit light of a light amount corresponding to a magnitude of supply energy, the illuminator configured to emit the light in a form of illumination light for illuminating a subject; an imager configured to image the subject to acquire an image; a controller configured to control the illuminator by adjusting the magnitude of the supply energy within a range less or equal to a maximum supply value, to bring brightness of the illumination light close to a target value; and a setter configured to set the maximum supply value according to a temperature of the light source.

Abstract: An endoscope tip attachment includes: a cylindrical casing that is arranged to surround a distal end portion of an endoscope that includes a raising base to raise a treatment tool; and a fluid controller that is positioned at an opening of a treatment-tool insertion channel of the endoscope inside the casing in a state in which the casing is attached to the distal end portion of the endoscope, the fluid controller being configured to control a flow of solution that has flowed from the treatment-tool insertion channel of the endoscope toward the distal end portion of the endoscope to flow equally along an entire surface of the raising base provided at the distal end portion of the endoscope, and being movable by pressure received from the solution.

Abstract: An endoscope includes: an image pickup device configured to convert image pickup light into an image pickup signal and output the image pickup signal; a light emitting element configured to output an optical signal based on the image pickup signal; a bonded prism including: a first prism including a first reflecting surface configured to reflect the image pickup light and a lower surface that is a first emitting surface configured to emit the image pickup light to the image pickup device; and a second prism including a second reflecting surface configured to reflect the optical signal that is incident from an upper surface and outputted from the light emitting element, the second reflecting surface being bonded with the first reflecting surface; and an optical fiber configured to transmit the optical signal reflected by the second reflecting surface.

Abstract: An observation system includes a processor. The processor manages a plurality of images acquired in time series with respect to a biological sample which is being cultured, records a first comment and a first region of interest (RoI) in a storage device in association with the images based on user's instructions, and records a second comment and a second ROI in the storage device in association with the first comment based on user's instructions.

Abstract: An endoscope valve switches connection states of a plurality of conduits formed in an endoscope to supply air or water, and includes: a cap; a rod-shaped shaft; and an attachment member into which the shaft is inserted. The shaft includes a main body portion including a hole portion having a hollow space extending along the longitudinal direction from another end which is a side opposite to a side of the one end, and a check valve configured to control a flow of a fluid in a space extending along the longitudinal direction from between the shaft and the attachment member. The check valve surrounds an outer surface of the main body portion, is exposed to an outside of the main body portion via the hole portion, has a diameter forming an outer periphery which increases toward a side of the other end, and is elastically deformable.

Abstract: An observation unit includes a printed circuit board, an image pickup device including an image pickup surface, at least one light-emitting diode, an optical frame to which optical members are fixed, and a convex portion. The printed circuit board includes a rectangular substrate on which the image pickup device is mounted, at least one strip-shaped substrate extending from a side corresponding to the one side of the rectangular substrate, the at least one strip-shaped substrate including, on an end face side, a light-emitting device arrangement portion on which the light-emitting diode is mounted, and a wiring substrate provided with a terminal on an end face side where the wiring substrate extends by a predetermined length from another side crossing the side of the rectangular substrate.

Abstract: A method of producing an optical element includes forming a base portion that supports a curved surface of the optical element by discharging a transmissive material that allows transmission of light in a first amount, and forming the curved surface by discharging, to the base portion, the transmissive material in a second discharge amount smaller than the first discharge amount.

Abstract: An endoscope includes a distal-end hard portion at a distal end of an insert, including a body, housing, first and second grooves in the body to extend inwardly, and a through-hole communicating the first and second grooves in the housing; a forceps-raising table in the first groove, including a fitting-groove along a through-hole extending direction; an arm portion including a pillar extending from the second groove to the first groove, a fit-in portion fitted in the fitting-groove on one side, and a connecting portion on the other side, the connecting portion being connected with a forceps-operating wire; and a seal portion on a periphery of the pillar, sealing water-tightly a first gap and a second gap, the first gap being between a periphery of the pillar and a periphery defining the through-hole, and the second gap being between the periphery of the pillar and a periphery defining the fitting-groove.

Abstract: A medical system includes a medical device, an over-tube, and a console. The medical device includes an insertion portion. The over-tube is configured to receive the insertion portion. A console having a first connector is attached to the medical device and a second connector is attached to the over-tube. The over-tube has a tubular main body and a proximal-end portion. The proximal-end portion comprises a tubular member having an insertion port for receiving the insertion portion of the medical device therethrough. A base portion is coupled to the second connector and a moving mechanism is coupled to both the tubular member and the base portion. The moving mechanism is configured to cause the tubular member to move with respect to the second connector such that the tubular member has two or more degrees of freedom with respect to the second connector.

Abstract: An imaging apparatus includes an imaging device and a processor. The processor is configured to determine brightness of an image when the imaging apparatus is operating in a second operation mode. The processor is configured to increase imaging sensitivity of the imaging device when the processor determines that the brightness is darker than or equal to a first brightness. The processor is configured to cause the imaging apparatus to operate in a first operation mode when the processor determines that the brightness is darker than or equal to a second brightness darker than the first brightness after the processor increases the imaging sensitivity.

Abstract: A washing tool includes a washing tool main body and a supplier. The washing tool main body is attached to a distal framing section of an insertion section of an endoscope in place of a cover, the cover being configured to be attached to the distal framing section. The washing tool main body accommodates the distal framing section in an inside of the washing tool main body in a state where the washing tool main body is attached to the distal framing section. The supplier is configured to supply a fluid to the inside of the washing tool main body.

Abstract: A bending operation device includes a bending operation lever, a wire pulling member, bending operation wires, and tubular members. The bending operation lever is tiltably supported to have an angle with respect to a longitudinal direction of an operation unit of an endoscope. The wire pulling member includes arm portions displaced in conjunction with tilt motion of the bending operation lever. The bending operation wires are connected to the arm portions. The bending operation wires cause bending motion of a bendable part disposed in an insertion section of the endoscope. A respective one of bending operation wires is inserted in each of the tubular members. The tubular members (i) change extension directions of the plurality of bending operation wires and (ii) guide the plurality of bending operation wires to the plurality of arm portions.

Abstract: An endoscope includes a bending operation member provided at an operation portion and configured to bend a bending portion of an insertion portion, a plurality of bending operation wires configured to be pulled or relaxed by the bending operation member, a plurality of tubular members provided inside the operation portion, into which the plurality of bending operation wires are inserted respectively, and disposed in a deflected state so as to avoid an internal component provided inside the operation portion, and a tubular member fixing member provided inside the operation portion and enabled to optimally adjust end portions of the plurality of tubular members at different positions along a longitudinal axis of the operation portion in a direction orthogonal to the longitudinal axis.

Abstract: An image processing device includes: an image acquiring unit configured to acquire a plurality of images that are captured with a same angle of view and are different from each other in a wavelength band of illumination light; a processor including hardware. The processor is configured to determine, based on a first image and a second image different from the first image in the plurality of images, whether a first light absorber in a living body in the first image and a second light absorber in a living body in the second image overlap in a depth direction of a living body, and extract light-absorption information as a result of absorption by the first light absorber, by using the first image, the second image, and a determination result.

Abstract: When a first mode is set in an endoscope apparatus, a light source control unit causes a light source to be turned on during a period including all or a part of a period during which available storage periods of pixels in all simultaneous exposure lines. An imaging device generates a first image. When a second mode is set, the light source control unit causes the light source to be turned on during a period including all of the available storage period of the pixels in each of a plurality of rows. The imaging device generates a second image. The rolling distortion determination unit determines a situation of occurrence of rolling distortion using the first image and the second image.

Abstract: A light radiating device includes an optical element held at a desired position by a holder and configured to exhibit desired optical performance based on incoming light entered at the desired position, a detector configured to detect an amount of positional deviation of the optical element relative to the desired position, and a discrimination unit configured to discriminate whether the light radiating device is in a normal state or an abnormal state based on the detected amount of positional deviation. The normal state is a state where the optical element exhibits the desired optical performance by being disposed at the desired position. The abnormal state is a state where the optical element is disposed at a position deviating from the desired position.

Abstract: An endoscope image processing device includes a processor. The processor sequentially receives an observation image obtained by performing image pickup of an object inside a tubular portion of a subject, performs processing for detecting a region of interest with respect to the observation image, performs judgement processing as to whether degradation of visibility of the region of interest included in the observation image is predicted, and performs emphasis processing for emphasizing the position of the region of interest when a judgement result indicating that the degradation of visibility of the region of interest included in the observation image is predicted is acquired by the judgement processing.

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: An endoscope apparatus includes a light emitting element, an image pickup device of a rolling shutter scheme, and a control section. The control section performs control for switching between a first illumination mode for irradiating light on a subject in a readout period in which readout of an electric signal is performed in order for each of lines in the image pickup device and a second illumination mode for not irradiating light on the subject in the readout period. The control section controls the image pickup device to perform electronic shutter processing in all-line exposure period in which exposure of a plurality of lines is simultaneously performed in a frame corresponding to timing when one of the first illumination mode and the second illumination mode is switched to the other illumination mode.

Abstract: An overtube is provided with a flexible elongated portion provided with a channel, the channel is configured to pass therethrough in a longitudinal direction of the elongated portion so as to insert a medical device; a shape fixing mechanism provided in the elongated portion, and the shape fixing mechanism switches the state of the elongated portion between a bendable state and a shape-fixed state; and a gate mechanism disposed on a base-end side of the elongated portion, the gate mechanism is configured to close the channel when the state of the elongated portion is switched to the bendable state, and open the channel when the state of the elongated portion is switched to the shape-fixed state.

Abstract: An endoscope system, wherein a processor reads out light distribution information which is information indicating a relationship between an arrangement of an image pickup device and a distribution of illumination light emission positions and which includes information about a light distribution angle of illumination light and the number of illuminating portions, a part of parameters of a light adjustment parameter and a parameter flag from an endoscope, and controls amounts of light of the illuminating portions by selecting the part of the parameters with priority over the light adjustment parameters at time of selecting the light adjustment parameter based on the light distribution information, if it is specified by the parameter flag that the part of the parameters are used for the light adjustment.

Abstract: An endoscope apparatus includes an image pickup device, an illumination element, a power source unit, a processor, an image processing unit, and a monitor as a display unit. The illumination element is capable of executing illumination light reduction processing. The image pickup device is capable of executing frame rate reduction processing and pixel count reduction processing. When the processor selects a low power consumption operation mode, at least one of the illumination light reduction processing, the frame rate reduction processing and the pixel count reduction processing is executed, and the image processing unit performs image restoration processing relevant to the illumination light reduction processing, the frame rate reduction processing and the pixel count reduction processing.

Abstract: A cover includes a cover body and a covering portion. The cover body can include an opening edge exposing a part of a distal structure portion, an annular portion surrounding a periphery of the distal structure portion, a proximal edge, a dividing portion provided in the annular portion in a manner to define a slit that is continuous with the opening edge portion and the proximal edge portion, and an overlapping portion. The dividing portion includes a first cylindrical wall portion, and a second cylindrical wall portion. The first cylindrical wall portion and the second cylindrical wall portion overlap at least partly in the overlapping portion. The covering portion is configured to cover a part, where at least the dividing portion is provided.