Abstract: An objective optical system includes, in order from an object side: a first group having a negative refractive power; a second group having a positive refractive power; and a third group having a positive refractive power, in which the first group and the third group are fixed and the second group is movable, the first group includes at least two lenses having a negative refractive power, the third group includes, in order from the object side, a 3-1st group having a positive refractive power, a 3-2nd group having a negative refractive power, a 3-3rd group having a positive refractive power, and a 3-4th group having a positive refractive power, and the following conditional expression (1)?? is satisfied: 1.5?Bk/f3?6??(1)??.

Abstract: An ultrasound transducer includes: a piezoelectric element unit including a plurality of piezoelectric elements configured to generate an ultrasound vibration; and a horn that extends from a distal end toward a proximal end to define a longitudinal axis direction and that is connected to a distal end side of the piezoelectric element unit. The horn includes a first transformation portion whose cross-sectional area orthogonal to the longitudinal axis direction decreases toward a distal end, the first transformation portion being configured to amplify amplitude of the ultrasound vibration, and a second transformation portion that is provided between the first transformation portion and a connection position at which the horn and the piezoelectric element unit are connected, the second transformation portion being configured to amplify or attenuates the amplitude of the ultrasound vibration.

Abstract: A method of manufacturing an ultrasonic transducer module, the ultrasonic transducer module including an ultrasonic transducer, a cable electrically connecting the ultrasonic transducer and a board connectable to an ultrasonic observation device, and a relay board relaying electrical connection between the ultrasonic transducer and the cable, the method including: performing a first molding to form a first part of a casing by molding a single type of resin having an insulation property through a stereo lithographic molding method; and performing a second molding to form a second part of the casing in a state where the ultrasonic transducer, the relay board, and the cable are provided in the first part of the casing, the second part being manufactured by further molding the resin in a side of the first part, in which the ultrasonic transducer, the relay board, and the cable are arranged, through the stereo lithographic molding method.

Abstract: An information processing system includes a storage device that stores therein a trained model, and a processor. The trained model is trained to output a position and shape of an object in a training image based on training data. The training data is data in which the training image is provided with an annotation indicating the position and shape of the object. The training image is an image captured with an angle of view including the object whose position and shape are not clearly displayed in an image. The processor executes detection processing on a detection image to output detected information indicating the position and shape of the object. The processor then causes a display device to display the detected information superimposed on the detection image.

Abstract: An illumination device for fluorescence image guided surgery and a surgical instrument. The illumination device includes a glass rod, a mixing rod and a plurality of optical fibers surrounding a circumferential surface of the glass rod. A first mixing rod end face of the mixing rod abuts a second rod end face of the glass rod and end faces of the optical fibers, so that white light and excitation light are guided and homogenized in the mixing rod.

Abstract: A medical ultrasound incision device includes: a probe configured to vibrate ultrasonically; a jaw configured to be opened and closed relatively to the probe and hold a body tissue between the probe and the jaw; and a pad that is positioned between the probe and the jaw, the pad being configured to prevent direct contact between the probe and the jaw in a state where the jaw has been closed, the pad including polyethylene having molecular weight larger than 4,400,000.

Abstract: A biopsy device includes: a hollow needle; a wire located inside the needle and having a helical drill portion; a rotation mechanism moving the drill portion; a sheath covering the needle, the needle and the wire being movable in a longitudinal direction of the needle with respect to the sheath; and an operating unit on a proximal side of the needle, the wire, and the sheath. The unit includes: a main body fixed to a proximal end of the sheath; and a knob fixed to a proximal end of the wire and supported by the main body so as to be movable in the longitudinal direction and rotatable about a longitudinal axis of the wire. The mechanism includes: a threaded portion, on the main body, having a pitch equal to a pitch of the drill portion; and a joint portion, on the knob, joined to the threaded portion.

Abstract: An endoscope fluid control system, includes: a water suction pump and a water suction pressure gauge connected to a water suction conduit; a memory configured to record correlation data for each type of endoscope, the correlation data indicating a correlation between a pressure value indicated by the water suction pressure gauge and an output value of the water suction pump; and a processor configured to: specify correlation data corresponding to a type; and monitor an operation of the water suction pump based on the specified correlation data.

Abstract: A container for one or more of storing and transporting a disinfected surgical instrument. The container including at least one wall having an inner surface defining a storage space for accommodating the surgical instrument. At least a portion of the inner surface is an antimicrobial surface.

Abstract: A channel replacement method to replace a first channel of an endoscope, the first channel including a first distal end and a first rear end, the channel replacement method including: sealing a flow path of the first channel by arranging a first plug at the first distal end and arranging a second plug at the first rear end, and withdrawing the first channel from inside the endoscope.

Abstract: An imaging device, comprising an image sensor that exposes a subject image and repeatedly outputs image signals resulting from having subjected this subject image to photoelectric conversion at a fixed period, a subject detection circuit in which the image signals are input to a neural network circuit that has learned operation parameters for detecting a specified subject by deep learning, and that detects the specified subject, and a subject association determination circuit for forming associations based on a positional relationship between a subject (whole subject) that has been detected by the subject detection circuit, and parts of the subject, wherein the specified subject is a subject (whole subject) and parts that have been subjected to subject association.

Abstract: A medical device comprises a housing and a sheath having opposed proximal and distal ends and being attached from the proximal end to the housing. An end effector is attached to the distal end portion of the sheath. The end effector includes a pair of grasping jaws capable of be openable and closable with respect to one another. A movable shaft includes a distal end that being connected at to the end effector and configured to be movable with respect to the sheath so as to cause the paired grasping jaws to be opened or closed with respect to one another. A movable handle is configured to pivot with respect to the housing and having an input position where an operation is inputted so as to cause the handle to pivot. The movable shaft is changeable in an initial state before the operation is inputted at the input position.

Abstract: A tracking device includes a processor including hardware, and the processor sets a start frame, extracts multiple representative points of a contour of a tracking target, tracks the extracted multiple representative points, performs outlier determination based on an interrelationship of the tracked multiple representative points, performs a process of removing an outlier representative point determined to be an outlier, and extracts new representative points based on multiple representative points after the process of removing the outlier representative point when a given condition is met.

Abstract: A method for closing a wound in a tubular organ using a suture thread attached to a suture needle. The method includes grasping a first part of the suture thread by a grasper inserted in the tubular organ after the suture thread has been passed through tissue surrounding the wound at a first position; moving the first part away from the first position by moving the grasper grasping the first part along a longitudinal axis of the grasper; grasping a second part of the suture thread located between the first part and the first position by the grasper; and moving the second part away from the first position by moving the grasper grasping the second part along the longitudinal axis of the grasper.

Abstract: An image pickup unit includes: a bonded device provided with a light receiving surface, an undersurface, and four side faces, the bonded device including a light receiving element provided with a light receiving circuit, and a circuit element provided with a peripheral circuit and direct-bonded to the light receiving element; a first protective layer covering the four side faces, the first protective layer being made of an inorganic material; a second protective layer covering the first protective layer, the second protective layer being made of metal; and a third protective layer covering the second protective layer, the third protective layer being made of an organic material.

Abstract: An endoscope processor includes a processor. The processor detects a first region of a lesion candidate from first image information which is acquired by irradiation with first illumination light; detects a second region of a lesion candidate from second image information acquired by irradiation with second illumination light having a different spectrum from the first illumination light; selects a region for display of the lesion candidate out of the first region and the second region, corresponding to an observation target site of a subject; and generates image information for display, in which the region for display is superimposed on the first image information.

Abstract: An image pickup apparatus for endoscope includes: an image pickup member provided with a plurality of image pickup side faces; a first optical member provided with first side faces; a first bonding layer bonding together the image pickup member and the first optical member; a second optical member provided with second side faces; and a second bonding layer bonding together the second optical member and the first optical member, in which a plurality of first side faces include first near side faces closer to an optical axis than are the second side faces and the image pickup side faces, and the image pickup apparatus for endoscope further includes a sealing resin covering the first near side faces, at least part of the first bonding layer, and the second bonding layer.

Abstract: An endoscope including: an elongated shaft comprising at least a first shaft tube with a window inserted in its distal end, and an electrical heating device arranged proximate to the window at or in the first shaft tube; wherein the heating device includes a flexible printed circuit board on which a resistive heating element configured as a conductor loop and a temperature sensor are arranged, and a heat-conducting structure connected in a thermally conductive manner to the temperature sensor is applied to the printed circuit board.

Abstract: A light source apparatus for endoscope includes a light source, a collective lens, a light shielding member which shields at least a part of the light emitted from the light source, and allows light which is not shielded, to be transmitted as transmitted light, an optical fiber on which, the transmitted light transmitted through the light shielding member is incident, a holding member which includes a heat insulating member, and holds at least one of the light source, the collective lens, and the light shielding member by fixing at a respective position thereof, and a heat exhausting member which exhausts heat generated in the light shielding member to an outside of the holding member.

Abstract: An endoscope including: a shaft; a main body arranged at a proximal end of the shaft; an eyepiece arranged at a proximal end of the main body; an eyepiece system tube, in which the eyepiece is arranged; an eyepiece cone arranged at a proximal end of the eyepiece, wherein the eyepiece cone comprises at least two parts; and an electronic component arranged between the at least two parts of the eyepiece cone; wherein the electronic component is connected to an electronic circuit arranged inside the endoscope and outside the eyepiece system tube.

Abstract: An endoscope apparatus includes: a light source apparatus; an image pickup apparatus configured to pick up an image of an object including a region containing hemoglobin irradiated with illumination light and output an image-pickup signal; and a processor. The processor performs predetermined image processing on at least one of a first image and a second image and outputs the one image, the first image being obtained by performing image pickup of the object irradiated with the first light, the second image being obtained by performing image pickup of the object irradiated with the second light, and generates an observation image by using the first and second images obtained as a processing result of the predetermined image processing.

Abstract: An endoscope apparatus includes an endoscope having a lens, an actuator, and an endoscope memory, and a processor having a driving circuit and a processor memory and connected to the endoscope. The processor judges whether there is abnormality or not in at least one of the actuator or the driving circuit by using information on a signal transmitted from the driving circuit to the actuator, first judgement information read from the endoscope memory, and second judgement information read from the processor memory.

Abstract: A connector includes a first port, a second port, a first sealing member and a second sealing member. The first port and the first pipe sleeve portion are connected with each other such that at least a part of the first port and at least a part of the first pipe sleeve portion engage with each other by fitting and overlap with each other, and a first sealing member is positioned between two overlapping portions. The second port and the second pipe sleeve portion are connected with each other such that at least a part of the second port and at least a part of the second pipe sleeve portion engage with each other by fitting and push each other, and a second sealing member is positioned between two pushing portions.

Abstract: An image pickup unit includes a three-dimensional substrate which includes a recess portion and an image pickup module which is installed in the recess portion, and the recess portion includes a first recess portion, a second recess portion which communicates with the first recess portion and which has a wider opening and a shallower depth than the first recess portion, and a third recess portion which is formed by providing a notch from a bottom surface of the second recess portion in a depth direction of the first recess portion.

Abstract: An image pickup unit includes: a three-dimensional wiring board including a recess on a first principal surface, in which a wall surface of the recess has an inclination angle of an upper region that is smaller than an inclination angle of a lower region; a stacked device disposed in the recess, the stacked device including an optical system and an image pickup device; and resin disposed in a gap between the recess and the stacked device.

Abstract: A method for closing a wound in a tubular organ using a suture thread includes: a first step of connecting a first edge portion and a second edge portion with the suture thread; and a second step of connecting a third edge portion and a fourth edge portion with the suture thread. The first step includes passing the suture thread through a first position on a mucosal surface of at least one of the first edge portion and the second edge portion. The second step includes passing the suture thread through a third position on the mucosal surface of at least one of the third edge portion and the fourth edge portion. A shortest distance between the wound and the third position is larger than a shortest distance between the wound and the first position.

Abstract: An image pickup unit includes: an image pickup member configured to output an image pickup signal; a sensor; a three-dimensional wiring board including a surface on which the image pickup member is mounted and a different surface on which the sensor is mounted; a signal cable electrically connected to the three-dimensional wiring board; a frame member housing the image pickup member, the sensor, the three-dimensional wiring board, and a distal end portion of the signal cable; a first resin sealing the sensor; and a second resin sealing the distal end portion of the signal cable and having a lower elastic modulus than an elastic modulus of the first resin.

Abstract: A fluid perfusion apparatus includes: a suction conduit for suctioning a fluid from inside a living body; a suction source connected to the suction conduit and configured to suction the fluid at a first flow velocity via the suction conduit; a suction control apparatus connected to the suction conduit and configured to control a flow of the fluid suctioned via the suction conduit; and a control circuit configured to control the suction control apparatus. The control circuit performs control for reversing the flow of the fluid suctioned via inside the suction conduit by the suction control apparatus, to generate a backflow, after controlling suction at the first flow velocity by the suction source for a predetermined period of time and to cause the suction control apparatus to perform re-suction at a second flow velocity greater than the first flow velocity after continuing the backflow for the predetermined period of time.

Abstract: A phototherapy assistance method for assisting phototherapy applied to an affected area using a photo-responsive medical agent. The phototherapy assistance method including obtaining blood flow related information regarding blood flow of the affected area, generating progression degree related information regarding progression degree of the phototherapy in the affected area by associating the blood flow related information with the progression degree, and indicating the progression degree related information.

Abstract: Provided is phototherapy progress measuring method for measuring a progress of a phototherapy of an affected portion by employing a fluorescent agent. The method includes: detecting a first fluorescence intensity, which is an intensity of fluorescence generated in the affected portion as a result of radiating therapeutic light beam onto the affected portion; and calculating, by employing the first fluorescence intensity and reference data, progress information representing the progress of the phototherapy of the affected portion. The reference data are determined on the basis of a fluorescence intensity associated with the fluorescent agent that is in the affected portion and that is not involved in the phototherapy.

Abstract: An endoscope includes a tube including a cable, an operation section connected to the tube, and a connector unit that connects the tube and the operation section. The operation section inserts the cable. The connector unit is movable between a first state and a second state to change a separation distance between a distal end of the tube and the operation section.

Abstract: An image pickup unit includes a stacked device in a substantially rectangular parallelepiped shape including an external electrode, and a three-dimensional wiring board including a bonding electrode and an alignment mark on a bottom surface of a recess on a first principal surface and a projection, on a side surface, projecting in a first direction parallel to a wall surface of the recess, in which the external electrode of the stacked device that is disposed in the recess is bonded to the bonding electrode, and on the bottom surface, an area of a region in which a first region where the bonding electrode is virtually moved in the first direction and the alignment mark are superposed on each other is less than 50% of an area of the alignment mark.

Abstract: A resin composition for a medical device to be subjected to gas low-temperature sterilization includes a resin and an ion exchanger.

Abstract: An endoscope system includes a light source that irradiates a predetermined first and second narrowband light; an imaging sensor that captures an image of return light of the first narrowband light and the second narrowband light from the subject, and generates an image signal of the image; and a processor being configured to identify a first color of a first portion and a second color of a second portion based on a difference of an optical density with respect to hemoglobin in the image signal in every frame of the image, the first portion corresponding to a bleeding area, and the second portion corresponding to an area other than the bleeding area within the subject, and correct the first color and the second color based on the identified first and second color while maintaining a color difference between the identified first and second color in a predetermined range.

Abstract: A reusable rotating ultrasound capsule for mounting to a distal end of a catheter. An exemplary device includes a motor compartment having a proximal face and a distal end. A sensor compartment includes a cap that seals with the motor compartment. A motor located within the motor compartment includes a drive component and a shaft rotatably coupled to the drive component and extending distally from the motor compartment into the sensor compartment. The shaft includes an ultrasound transducer. A plurality of electrical contacts are mounted on the proximal face. At least two of the electrical contacts are electrically coupled to the motor. A rotational electrical coupler includes a rotational component mechanically coupled to the shaft and electrically coupled to the ultrasound transducer and a stationary component mechanically coupled to the motor compartment and electrically coupled to one or more of the plurality of electrical contacts.

Abstract: A learning data generating apparatus receives first training data, first correct answer information, and second training data, inputs the first and second training data into a neural network to thereby cause the neural network to output first and second array groups each constituted of a plurality of arrays, identifies a first array from the first array group based on the first correct answer information, the first array being an array corresponding to the recognition target, and compares the first array and each of the plurality of arrays constituting the second array group, to create second correct answer information corresponding to the second training data.

Abstract: An ultrasound endoscope includes: an ultrasound transducer including a piezoelectric element that includes a plurality of grooves with a groove filling material filled in the plurality of grooves, the groove filling material including the following (1) to (3): (1) an epoxy resin; (2) at least one filler selected from the group consisting of diamond, aluminum oxide, silicon oxide, silicon carbide, boron carbide, iron oxide (III), chromium oxide (III), and cubic boron nitride; and (3) an aliphatic diol diglycidyl ether.

Abstract: An endoscope system includes an insertion portion receiving a first force from an enteric canal and applying a second force, which is a reaction, to the enteric canal, a detection device detecting a position of the insertion portion, and a processor. The processor calculates a position of a point of application, a direction, and a magnitude of the first force, performs an arithmetic operation of a shape/position of the insertion portion based on an output from the detection device, determines a reaction position at which the second force is received, based on position information of the insertion portion and on position information of the point of application of the first force, sets two fixed points where the enteric canal is fixed, and calculates information of a third force and a fourth force directed toward the two fixed points from the reaction position with respect to the second force.

Abstract: A distal end member of an insertion apparatus includes: a base; a recessed portion which is recessed on a surface of the base; an opening forming surface formed on a surface of the base so as to surround a periphery of an opening of the recessed portion; and a lid member with a plate shape including a contact surface which is larger than the opening of the recessed portion and is brought into contact with the opening forming surface, the lid member closing the opening of the recessed portion by bringing the contact surface into contact with the opening forming surface. The lid member is formed so as to expose at least a portion of a side surface of the lid member disposed adjacently to the contact surface of the lid member to an outer surface of the base.

Abstract: The endoscope system includes: a laser diode for an endoscope that emits illumination light whose amount can be controlled; an image pickup device that outputs an image pickup signal of an image obtained by receiving reflected light of the illumination light; a photodiode that receives a part of the illumination light of the laser diode; a thermistor that detects a temperature of the laser diode; a thermistor that detects a temperature of the photodiode; a detection light amount temperature correction circuit that corrects an amount of light received by the photodiode based on the temperature of the photodiode; and a laser diode control circuit that controls driving of the laser diode so that an amount of the illumination light becomes a set value based on a corrected amount of received light corrected by the detection light amount temperature correction circuit and the temperature of the laser diode.

Abstract: A surgical tool including a housing having a proximal end and a distal end, a yoke disposed within the housing between the proximal end and the distal end, a handle pivotally coupled to the housing, and a pivot assembly coupling the yoke to the housing. The pivot assembly includes a first link having a first end and a second end. The first end of the first link is rotatably coupled to the housing and the second end of the first link rotatably coupled to a second link at a first end of the second link. The second link has a second end rotatably coupled to the yoke. The handle is coupled to the pivot assembly such that movement of the handle causes movement of the yoke.

Abstract: An image acquisition apparatus includes an optical system including a lens and forming a subject image; an image acquisition device having an image acquisition surface on which the subject image is formed and acquiring a plurality of images; a shifting mechanism causing the device and system to relatively shift in a direction parallel to the surface; and a processor configured to: calculate a movement amount of the subject image on the surface; calculate a relative shift amount of the device and system on the basis of the calculated movement amount; and cause the device and system to relatively shift, between acquisitions of the plurality of images, by the calculated shift amount. The device acquires a plurality of pre-images before acquiring the plurality of images, and the processor is configured to calculate the movement amount of the subject image from a movement amount of the subject between the plurality of pre-images.

Abstract: An image display system includes a first processor disposed in a first system and a second processor disposed in a second system. The first processor is configured to transmit two or more first images to the second system and receive two or more second images from the second system. The first processor is configured to transmit, to the second system, first identification information added to a second image displayed on a monitor when a release signal has been received. The second processor is configured to acquire a temporary image to which the same second identification information is added as the first identification information among two or more temporary images stored on a buffer.

Abstract: An overtube for an endoscope includes: a tube body having a main lumen through which the endoscope is inserted and an air-supply lumen through which gas flows; a fixing balloon provided on an outer peripheral surface of a distal end of the tube body, expandable outward from the outer peripheral surface and contractible toward the outer peripheral surface; an air supply device configured to send the gas to the air-supply lumen; and an airtight valve unit having a tubular portion communicating with the main lumen at a rear end of the tube body, the airtight valve unit closing the gap between the endoscope inserted through the tubular portion into the main lumen and an inner peripheral surface of the tubular portion.

Abstract: An endoscope operation support apparatus (2000) acquires a shape data sequence (50) representing a temporal change of shape data of an endoscope scope (40). The endoscope operation support apparatus (2000) determines an insertion method used for insertion of the endoscope scope (40) using the shape data sequence (50). The endoscope operation support apparatus (2000) outputs insertion method information (20) regarding the determined insertion method.

Abstract: An electrode for a high-frequency medical device in which a coating film is formed on at least a part of a surface of a treatment section of the medical device, wherein the coating film includes a silicone resin, and at least one type of filler having conductivity. Particles of the fillers are fusion-bonded to each other to form a conductive path, and/or a particle of the filler and an electrode substrate disposed on a surface of the treatment section are fusion-bonded to form a conductive path.

Abstract: A system and method are provided for using artificial intelligence for patent valuation. The method includes obtaining a master list of patent classification codes used by a patent office. The method also includes, for each patent issued by the patent office: obtaining a respective set of patent classification codes assigned to the respective patent and forming a respective training vector. Each element in the respective training vector is a categorical variable that specifies whether a patent classification code is included in the respective set of classification codes. The system receives a respective user-specified value metric for each patent. The method also includes training a machine learning model according to a training data table that includes the training vectors. The machine learning model is configured to predict value metrics for patents according to their corresponding patent classification codes.

Abstract: An authentication method for endoscope includes acquiring a first identification information stored in a first memory of the endoscope, acquiring a second identification information stored in a second memory of the endoscope, comparing the acquired first identification information with the acquired second identification information, and based on a result of the comparing, performing a first processing or a second processing.

Abstract: An image pickup apparatus for endoscope includes a resin member in which an outer dimension of a third main surface is equal to an outer dimension of a second main surface, an image pickup member having a light receiving surface smaller than the second main surface, and having a first external electrode on a back surface covered by the resin member, a fan-out wiring provided to extend between an inside and an outside of an extension space, the extension space being an extension of the image pickup member in an optical axis direction, a first through wiring penetrating through the resin member, and provided in the inside of the extension space, a first bonding electrode connected with the external electrode through the first through wiring and the fan-out wiring and forming the fan-out wiring provided on the third main surface, and an electric cable bonded to the first bonding electrode.

Abstract: An ablation system includes: an endoscope; an ablation treatment tool; an overtube; a first operation member that is provided at a base end portion of the overtube; and a second operation member that is attachable to and detachable from an intermediate position in a longitudinal direction of an insertion portion of the endoscope. The overtube has a balloon that is configured to fix the overtube to the gastro-intestinal tract; the insertion portion and the ablation treatment tool can be integrally moved in the overtube in the longitudinal direction; and the first and second operation members each have a finger holder that holds at least one finger of one hand. The first operation member is distinct from the overtube, and is attachable to and detachable from an outer circumferential surface of the overtube, at an arbitrary position in the longitudinal direction of the overtube.