Abstract: An optical system includes in order from an object side, an objective optical system, a ?/4 wavelength plate including one birefringent material, a polarizing beam splitter which splits light from the objective optical system into two, and an image sensor which picks up two images split. The polarizing beam splitter causes to occur an axial astigmatism of an opposite sign with respect to an axial astigmatism occurred due to the ?/4 wavelength plate, the following conditional expression (1) is satisfied. 1.1?Fno/(d/|?n|)?49??(1) where, Fno denotes an effective F-number of the objective optical system, d denotes a thickness of the ?/4 wavelength plate, and ?n denotes a birefringence of the ?/4 wavelength plate for an e-line, provided that, |0.01|<?n.

Abstract: An imaging apparatus includes a processor, an imaging device, and a light source. The processor is configured to determine whether or not the imaging device has gone out of space of which at least part is surrounded by an object when the imaging device is performing imaging after the imaging device is inserted into the space. The processor is configured to execute power-saving control when the processor determines that the imaging device has gone out of the space. In the power-saving control, the processor is configured to make power consumption of a control target less than power consumption of the control target before the power-saving control is executed. The control target is at least one of the imaging device and the light source.

Abstract: A manufacturing method of an image pickup apparatus includes: fabricating a plurality of image pickup members each having a light-receiving surface on which a transparent plate is disposed and a plurality of spacers; measuring thicknesses of the transparent plates and the spacers; classifying the image pickup members into first groups depending on the thicknesses of the transparent plates; classifying the spacers into second groups depending on the thicknesses, selecting a combination of any one of the first groups and any one of the second groups such that a sum of the thickness of each of the transparent plates and the thickness of each of the spacers is within a predetermined range with a focusing length of optical members as a center; fabricating stacked bodies by stacking the image pickup members and the spacers in the selected combination; and disposing the optical members on the spacers in the stacked bodies.

Abstract: A medical apparatus remanufacturing method includes: disassembling a housing including a first housing and a second housing. The first housing can include a boss that is press-fitted to a boss hole of a press-fitted portion of a second housing to form an assembled state in which the first housing and the second housing are assembled to each other. The housing is disassembled by changing a temperature of at least one of the boss or the press-fitted portion to decrease a contact surface pressure between the boss and the boss hole, and removing the boss from the boss hole to release the assembled state.

Abstract: A light source device includes: a first light source including a first electrode to which a current is applied, a first light emitter configured to emit light by the current applied to the first electrode, and a first heat release region configured to release heat generated in the first light emitter; a second light source including a second electrode to which a current is applied, a second light emitter configured to emit light in a wavelength different from a wavelength of the first light emitter, by the current applied to the second electrode, and a second heat release region configured to release heat generated in the second light emitter; and a heat release portion electrically-connected with the first electrode, electrically-insulated from the second electrode, and thermally connected to the first heat release region and the second heat release region.

Abstract: An image acquisition unit acquires a simultaneously captured image group including a plurality of endoscopic images in which the same subject is imaged in a simultaneous imaging mode, and at least one of an imaging method or an image processing method is different from each other. A display image generator generates a display image and causes the display device to display the display image. The display image generator can change the number of endoscopic images to be displayed from the simultaneously captured image group.

Abstract: A treatment system includes: a treatment instrument for cutting living tissue in a liquid; and a controller for performing control, prior to cutting the living tissue with the treatment instrument, to suppress reduced visibility of a treatment area due to turbidity in the liquid caused by the cutting of the living tissue based on preparation information regarding cutting preparation for the treatment instrument.

Abstract: An image processing apparatus includes a processor, in which the processor is configured to receive a picked-up image of a swallowing motion in a swallowing test in which a swallow object is provided to a subject to observe the swallowing motion, detect a color of the swallow object in the picked-up image, and perform processing for improving an image quality of the picked-up image according to a detection result of the color of the swallow object.

Abstract: A conduit connection device comprises a plurality of fluid circulation lines, each of the plurality of fluid circulation lines having a conduit, a plurality of relay fluid circulation lines, each of the plurality of relay fluid circulation lines having a relay fluid conduit, a plurality of conduit connectors, and interference components are attached to the conduit connectors such that, in a first connection combination, the conduit connectors on a first end of each of the plurality of fluid circulation lines cooperate with the conduit connectors on a first end of each of the plurality of relay fluid circulation lines to connect respective fluid circulation lines to respective relay fluid circulation lines, and wherein, in other than the first connection combination, the plurality of interference components prevent connecting at least one of the plurality of fluid circulation lines to at least one of the plurality relay fluid circulation lines.

Abstract: A manipulator system includes: a manipulator including a bending portion and a bending wire configured to bend the bending portion; a driving portion configured to pull and loosen the bending wire; and a control device configured to control the driving portion, wherein the control device controls the driving portion to perform an initialization operation that alternately repeats pulling and loosening of the bending wire so that an amount of change in a bending shape of the bending portion compared to when the initialization operation is started falls within a predetermined range.

Abstract: An image display device includes: a plurality of circuits configured to process image signals received from an endoscope, and display an endoscope image on a display; a battery configured to supply electric power to the plurality of circuits; and a processor. The processor switches a control mode in which the electric power is supplied to the plurality of circuits, from a normal mode to any one of a plurality of standby modes in which power consumption is set to be lower than in the normal mode; and the processor switches the control mode, in a case where date and time are out of a preset scheduled use period, to a second standby mode in which the power consumption is set to be lower than in a first standby mode of a case where the date and time are within the scheduled use period.

Abstract: An endoscope imaging unit includes: an objective lens including a first lens and a second lens; an imaging element configured to capture an image formed by the objective lens; a first lens frame configured to hold the first lens, the first lens frame including a lens barrel that holds the first lens and a flange portion that extends outward from an outer peripheral portion of the lens barrel; a second lens frame that is fixed to the first lens frame and holds the second lens; and a holder that accommodates at least part of the first lens frame and the second lens frame therein and holds the outer peripheral surface of the flange portion of the first lens frame; wherein the flange portion is fixed to the holder on a side surface thereof in an extending direction.

Abstract: An insertion instrument comprises an insertion portion, an operation portion located proximally relative to the insertion portion. The operation portion includes a housing having an exterior body, a light source apparatus located inside the exterior body, a conduit for a fluid. The conduit includes a first portion located outside the exterior body, a second portion located inside the exterior body and in contact with an outer surface of the light source apparatus.

Abstract: An endoscope system includes a first processor and a second processor. The first processor is configured to receive an information including a number of times an endoscope is used, and determine if the number of times the endoscope is used is equal to or larger than a predetermined number of times. The second processor is configured to overwrite a first image correction data with a second image correction data when the first processor determines the number of times the endoscope is used is equal to or larger than the predetermined number of times.

Abstract: An image acquisition unit acquires a medical image. An item recording unit records a plurality of items representing options for examination results. An item identifying unit identifies a display item group including one or more items from a plurality of items that can be included in an input screen. A display screen generation unit displays an input screen that is for a user to enter an examination result on the medical image and in which one or more items included in the display item group are arranged. An operation reception unit that receives a selection operation for a displayed item.

Abstract: A rigidity control apparatus includes a processor and controls a variable-rigidity apparatus. The variable-rigidity apparatus includes a variable-rigidity member, flexural rigidity of which increases when the variable-rigidity member is heated, and a heater configured to be able to heat the variable-rigidity member. The processor calculates information about temperature of the heater, and estimates information about temperature of the variable-rigidity member based on the information about the temperature of the heater.

Abstract: A control apparatus includes a processor to control transmission/reception, a transmission/reception unit configured to transmit/receive wireless signals from a plurality of transmitting antennas using a plurality of receiving antennas that can transmit/receive the signals, a first sensitivity acquisition unit configured to acquire a first communication sensitivity of a first receiving antenna that receives main signals from the first transmitting antenna, and a second sensitivity acquisition unit configured to acquire second communication sensitivities of a plurality of antenna pairs each made up of any one of the plurality of transmitting antennas and any one of the plurality of receiving antennas for transmitting/receiving sub-signals, in which the plurality of receiving antennas are arranged at predetermined relative angles, and the second sensitivity acquisition unit calculates communication sensitivities of all the plurality of receiving antennas based on some of communication sensitivities of the plura

Abstract: An insertion instrument comprises an insertion section including a distal end portion, a bending portion, and a flexible tube portion. The distal end portion includes an opening, an objective lens, a first conduit, and a second conduit connected to the first conduit, the second conduit extending in a direction other than the longitudinal direction, the second conduit located distally relative to the first conduit. A space between a side surface of the objective lens and a side surface of the opening in the distal end surface defines a third conduit, the third conduit connected to the second conduit.

Abstract: An electrically conductive plate of a treatment instrument includes a treating surface and a back surface facing an opposite side of the treating surface, and an electric component is arranged on the back surface of the electrically conductive plate. The electric component is electrically independent from the electrically conductive plate, and a holder supports the electrically conductive plate from the back surface side. A connector is made of a thermoplastic resin, and arranged on either side of and spaced from the electric component in a width direction intersecting with a longitudinal axis. The connector stationarily fixes each end of the electrically conductive plate in the width direction to the holder.

Abstract: An image generation device that generates an image of a subject includes a processor configured to generate an ultrasonic image based on a reflected ultrasound signal, generate a photoacoustic image based on a photoacoustic wave signal, and generate an estimated photoacoustic image based on the photoacoustic image and the ultrasonic image.

Abstract: A system includes a memory that stores a trained model and a processor. The processor acquires a captured image in which at least one energy device and at least one biological tissue are imaged. The processor performs a process based on the trained model stored in the memory to estimate a heat diffusion region and a specific tissue region from the captured image. The processor determines a risk for heat damage on a specific tissue by energy output from the energy device from the estimated heat diffusion region and the estimated specific tissue region.

Abstract: A display processing unit causes a display device to display an endoscopic image of a living tissue in a somatic cavity captured by an endoscope. An operation reception unit receives a user operation that is performed so as to set an area of interest in the endoscopic image. An area-of-interest setting unit sets the area of interest in the endoscopic image based on the user operation. A three-dimensional information acquisition unit acquires three-dimensional shape information of the living tissue captured by the endoscope. A virtual surface derivation unit derives three-dimensional shape information of a virtual surface in the area of interest from three-dimensional shape information of an area different from the area of interest. A size information identification unit identifies information concerning a size of the virtual surface from the three-dimensional shape information of the virtual surface.

Abstract: A control device includes a processor. The processor controls an image sensor to read out first imaging signals in a first readout period, the first imaging signals being signals from a first quantity of pixels, and read out second imaging signals in a second readout period, the second imaging signals being signals from a second quantity of pixels, the second quantity being smaller than the first quantity, the second readout period being shorter than the first readout period. The processor controls a light source to emit first illumination light in a first exposure period before the first readout period, and emit second illumination light in a second exposure period before the second readout period. The processor generates a display image from the first imaging signals. The processor generates a support image from the second imaging signals. The processor generates support information based on the support image.

Abstract: An endoscope system includes: an endoscope equipped with an insertion portion inserted into a subject; a heating element provided in the insertion portion and configured to generate heat; a temperature sensor configured to acquire heating element temperature data on temperature of the heating element; and a processor. The processor outputs initial surface temperature, which is data on insertion portion surface temperature at a first time point prior to a heating start time of the heating element, based on the heating element temperature data at the first time point and estimates changes in the insertion portion surface temperature over time after the first time point based on the heating element temperature data after the first time point using the initial surface temperature as an initial value of the insertion portion surface temperature.

Abstract: A treatment system includes: a treatment instrument configured to cut living tissue in a liquid; an endoscope configured to capture an endoscopic image including an image of the treatment instrument and an image of the living tissue; a support data storage configured to store, as support data to support a cutting treatment, at least one of data regarding a posture of the treatment instrument and image data on a location of a treatment section of the treatment instrument; a support data generator configured to generate support data to be displayed on a display based on the support data stored; a controller configured to control the display to display the endoscopic image; and a turbidity detector configured to detect a degree of cloudiness of the liquid.

Abstract: An endoscope includes: a second exterior member formed by resin molding; a through hole formed in the second exterior member and having a center axis; an operating member disposed in the through hole, the operating member having a moving member configured to move along a predetermined axis; and a connecting member being fixedly mounted in the though hole, the connecting member being disposed so as to make the predetermined axis of the operating member intersect with the center axis of the though hole at a preliminarily set angle.

Abstract: A system including: a foot switch for controlling a medical device; and a receiver for the medical device to be controlled as components. Where the foot switch and the receiver are configured for wirelessly transmitting uniquely assignable control signals after completion of coupling at least from the foot switch to the receiver; one of the components comprises an NFC read module for reading out a transponder in a vicinity and an other component comprises the transponder that can be read out by the NFC read module; and the NFC read module is configured at least to initiate the coupling of the foot switch and the receiver on the basis of items of information read out from the transponder.

Abstract: An image sensor includes: a pixel unit including pixels configured to generate a first signal corresponding to an amount of received light, and output the first signal; an AD converter configured to convert the first signal into a digital second signal by performing AD conversion processing for the first signal, and output the second signal; a transmitter/receiver configured to transmit and receive, in a time division manner, transmission data including at least the second signal in a first period, and reception data input from an outside in a second period; and a first generator configured to generate a first clock signal synchronized with the clock edge included in the reception data. The transmitter/receiver is configured to switch between the first period and the second period every horizontal line in the pixel unit, and transmit and receive the transmission data and the reception data in a time division manner.

Abstract: A stent delivery system includes: a stent delivery device configured to carry a stent to a stenosis and indwell the stent; an observation device configured to observe the stenosis; and one or more processors comprising hardware, the one or more processors being configured to: acquire an observation image from the observation device, and determine, based on the observation image, at least one insertion position, which is a position within the stenosis where the stent delivery device is recommended to be inserted.

Abstract: The system includes a memory that stores a trained model, and a processor. The processor acquires at least one treatment image including an image in which at least one energy device and at least one biological tissue are captured. The processor acquires information regarding an amount of energy supply, the information regarding an energy output setting of the energy device. The processor estimates, based on the treatment image, the information regarding the amount of energy supply, and the trained model, estimated remaining heat information regarding an amount of heat or a temperature of the energy device. The processor causes a notification section to make a notification based on the estimated remaining heat information.

Abstract: The system includes a memory that stores a trained model, and a processor. The processor acquires a pre-treatment image in which at least one energy device and at least one biological tissue are imaged, and a state before application of energy is imaged. The processor estimates an estimated heat diffusion region from the pre-treatment image and information regarding an energy supply amount by processing based on a trained model stored in the memory. The processor superimposes the estimated heat diffusion region on a captured image of the camera and displays the captured image with the superimposed estimated heat diffusion region.

Abstract: An objective optical system including a first lens and a second lens that are arranged in this order from an object side along a main optical axis, wherein the first lens has a partially spherical shape having a first flat surface, the second lens has a partially spherical shape having a second flat surface, the first flat surface is disposed on a side of the object and is inclined with respect to the main optical axis, and the second flat surface is disposed on an opposite side which is opposite from the side of the object and is perpendicular to the main optical axis.

Abstract: Provided is a control device for controlling a schedule of at least one medical event that includes at least one of a surgery, an examination, and a medical interview. The control device includes at least one processor that includes hardware. The at least one processor is configured to: grasp progress of the medical event that is currently being performed; and determine whether adjustment of the schedule is necessary or not, based on the progress. The schedule includes information about a required time of each stage that is performed in each medical event. The at least one processor is configured to: grasp a current stage of the medical event that is currently being performed, based on an endoscopic image of the medical event that is currently being performed; and grasp the progress based on the current stage and the schedule.

Abstract: A laser scanning method including emitting a pulsed laser beam from a distal end of an optical fiber in a liquid medium during a first period, the pulsed laser beam being emitted for generating a bubble at the distal end, stopping emission of the pulsed laser beam from the distal end during a second period, wherein the first period is a period for moving the optical fiber closer toward an operation member disposed parallel to the optical fiber by utilizing contraction of the bubble that comes into contact with or close to the operation member, and wherein the second period is a period for moving the optical fiber away from the operation member.

Abstract: A laser scanning method that is a method for scanning a laser beam emitted from a distal end of an optical fiber in a liquid medium. The laser scanning method includes emission of a pulsed laser beam from the distal end in the medium, wherein the emission of the pulsed laser beam includes: generating a bubble that is to come into contact with the distal end and an operation member by means of the laser beam emitted from the distal end, the operation member being disposed only at one side of the distal end in a radial direction of the optical fiber; and contracting the bubble by stopping the emission of the laser beam from the distal end.

Abstract: An endoscope includes an insertion portion that is inserted into a subject, and a suction channel that suctions a liquid along with a crushed calculus. The suction channel includes a channel main body, which is inserted in the insertion portion, and a small-diameter channel portion that is provided on a distal end side of the channel main body and has an inner diameter smaller than an inner diameter of the channel main body. The suction channel is configured to satisfy the relational expression R1/R2>1.27, where R1 represents the inner diameter of the channel main body and R2 represents the inner diameter of the small-diameter channel portion.

Abstract: A surgical tool, which can be identified in a simple and at the same time unambiguous manner. This is achieved in that a surgical tool has an electrical conductor element having a tool-specific electronic signature. An unambiguous identification of the tool is possible via this tool-specific electronic signature. Each surgical tool of the claimed type thus has a signature, using which it can be unambiguously identified.

Abstract: Provided is a method of bonding an operation wire used in a medical equipment. The method includes: locally heating an adjacent region of a bonding region of an operation wire to generate an oxide in the adjacent region of the operation wire; coating the bonding region and the adjacent region with flux to remove an oxide in the bonding region and the oxide in the adjacent region; inserting a bonding end portion of the operation wire into a through-hole of a coupling material; injecting a melted bonding material into between the coupling material and the operation wire to integrally bond the coupling material and the operation wire such that the oxide remaining in the adjacent region prevents wet-spreading of the bonding material.

Abstract: A stent delivery system includes: a stent delivery device configured to carry a stent to a stenosis and indwell the stent, an observation device configured to observe the stenosis, and one or more processors comprising hardware, the one or more processors being configured to: acquire an observation image from the observation device, and determine at least one stent candidate to be placed in the stenosis based on the observation image.

Abstract: A pixel region includes: pixels each including a plurality of photoelectric conversion devices; a light-shielding region; and an effective region. A reading circuit reads, from a first row of the pixel region, a pixel signal obtained by adding signals of the plurality of photoelectric conversion devices, and reads, from a second row of the pixel region, a plurality of signals including phase difference information. A horizontal streak correction circuit performs one of a first offset correction based on a signal read from the light-shielding region and a second offset correction based on a predetermined value on a pixel signal obtained from a second row of the effective region. An image processing circuit processes image data according to a parameter. The horizontal streak correction circuit selects the first offset correction or the second offset correction according to the parameter.

Abstract: An electrosurgical generator for operating an electrosurgical instrument is characterized by a control device which is adapted to control a cooling device at least with a first control curve and a second control curve, wherein the first control curve is used to control the rotational speed of the cooling device depending on the monitored temperature during a first operating mode of the electrosurgical generator and the second curve is used to control the rotational speed of the cooling device depending on the monitored temperature during a second operating mode of the electrosurgical instrument, wherein the first control curve and the second control curve are different from each other. A method for operating an electrosurgical generator for operating an electrosurgical instrument and to an electrosurgical generator system includes an electrosurgical generator and an electrosurgical instrument.

Abstract: An image acquisition unit acquires an endoscopic image photographed by an endoscope. A segmentation unit partitions the endoscopic image into a plurality of regions. A depth information generator generates depth information indicating a depth of the endoscopic image. A recognition unit specifies a direction in which the endoscope is advanceable based on region information indicating a result of segmentation by the segmentation unit and depth information of the endoscopic image generated by the depth information generator.

Abstract: An image processing device includes: a processor comprising hardware, the processor being configured to calculate an evaluation value of a captured image that is obtained by capturing a subject, determine whether or not the evaluation value is included in a specific extraction range recorded in a memory, extract the captured image as an image of interest including a lesion when the processor has determined that the evaluation value is included in the specific extraction range, and update the specific extraction range based on the evaluation value.

Abstract: An optical transducer for endoscope includes an optical element, an optical fiber, and a fiber holding member including a first holding member including a first principal surface and a second principal surface and a second holding member in which a third principal surface is disposed to face the second principal surface, a first through-hole into which the optical fiber is inserted, being formed in the first holding member, the optical element being mounted on a fourth principal surface. A trench connected to the first through-hole and including openings respectively on opposed two side surfaces is formed on the second principal surface. Only a part of a distal end portion of the optical fiber is observable from the openings of the trench.

Abstract: An ultrasound probe includes: an ultrasound transducer including plural piezoelectric elements; an acoustic lens layer configured to radiate the ultrasound emitted from the plural piezoelectric elements to outside; a back layer that faces the acoustic lens layer with the ultrasound transducer interposed between the back layer and the acoustic lens layer; and a wiring member having at least a part that is arranged at a first position between the acoustic lens layer and the ultrasound transducer or at a second position that faces the ultrasound transducer with the back layer interposed between the second position and the ultrasound transducer. The wiring member includes: a resin layer having electrically insulating; and an electrically conducting layer that is provided on the resin layer and includes plural signal wirings.

Abstract: In an imaging system, an image transmission circuit is configured to output image data to a signal line in a first mode. A signal reception circuit is configured to receive a clock control signal for adjusting a frequency of a camera clock from an image reception unit in a second mode. A signal output circuit is configured to output a first electric potential and the clock control signal to the signal line. The first electric potential corresponds to a signal level that is not included in a range of a signal level of the image data output to the signal line. A communication control circuit is configured to switch communication modes from the first mode to the second mode when the communication control circuit detects the first electric potential in the first mode.

Abstract: A digital-to-analog converter comprising: a plurality of capacitances and a plurality of switches. A capacitance among the plurality of capacitances, of which the number corresponds to the resolution of the analog signal to be output, is used as a voltage value generation capacitance, so as to generate a voltage value based on the reference voltage to be added or subtracted, by switching a node to which the second terminal is connected by a corresponding switch. A remaining capacitance, which is not used as the voltage value generation capacitance among the plurality of capacitances, is used as a gain adjustment capacitance, so as to adjust gain of a voltage value based on the reference voltage to be added or subtracted, by holding a node to which the second terminal is connected by a corresponding switch.

Abstract: A phototherapy assistance device includes: a connector that is connectable to a balloon detection unit that detects inflation information regarding whether a balloon has been inflated in a body cavity; and one or more processors including hardware, the one or more processors being configured to: detect connection information regarding whether an optical probe to be inserted into the balloon is connected to a light source device; determine whether the optical probe can be inserted on a basis of the inflation information received from the balloon detection unit via the connector, and the connection information; and report a determined determination result.

Abstract: A data transfer device includes: a plurality of masters each having a buffer and configured to calculate a remaining-time counter based on an amount of data in the buffer; a memory system configured to perform data transfer with the plurality of masters and having a memory access prohibition period during which access from the plurality of masters is intermittently prohibited; a bus arbiter configured to arbitrate the plurality of masters based on the remaining-time counter; and a remaining-time counter-adjusting part configured to add a remaining-time counter offset, which adjusts the remaining-time counter until the start of the memory access prohibition period, to at least one of the plurality of masters.

Abstract: A rigidity variable device includes: a main body unit having an elongated shape; a plurality of higher rigidity portions made of metal, the higher rigidity portions being included in the main body unit and arrayed in a separated manner in a direction along a longitudinal axis of the main body unit; and one or a plurality of lower rigidity portions included in the main body unit and including a shape memory alloy coil disposed between adjacent ones of the higher rigidity portions and formed by winding a wire around an axis parallel to the longitudinal axis. A rigidity of the shape memory alloy coil increases when heated.