Abstract: A light source device includes: a first light emitter configured to emit first light; a second light emitter configured to emit second light having an identical color component to the first light; and an illumination controller configured to cause, after causing the first light emitter to emit the first light, the second light emitter to emit the second light according to a set light amount in a state in which the first light emitter is caused to emit the first light.
Abstract: An endoscope includes an insertion portion, a distal end rigid member, and a channel tube. The distal end rigid member is provided on a distal end side with respect to the bending portion of the insertion portion, and includes an illumination window, an observation window, and a treatment instrument opening. As the distal end rigid member moves relative to the bending portion in a distal end direction of a longitudinal axial direction, the distal end rigid member can change from a first state in which a distance between a proximal end surface of the distal end rigid member and a distal end surface of the bending portion is fixed to a first distance to a second state in which the distance is equal to a second distance longer than the first distance.
Abstract: An objective optical system includes, in order from an object side: a positive first group; a negative second group; a negative third group; and a positive fourth group, in which the second group and the third group move together toward an image side to perform focusing from an object point at a long distance to an object point at a close distance, and the following conditional expression (2) is satisfied: 0.2<(t34f?t34n)/F<2 (2), where t34f is a distance between the third group and the fourth group at a time of focusing to the object point at the long distance, t34n is a distance between the third group and the fourth group at a time of focusing to the object point at the close distance, and F is a focal length of the overall objective optical system at a time of focusing to the object point at the long distance.
Abstract: An endoscope apparatus includes an imaging device that acquires a plurality of images with different focus positions at different timings and a processor including hardware. The processor aligns the plurality of images with different focus positions, combines the plurality of images with different focus positions that have been aligned into a single depth of field increased image to increase a depth of field, obtains a risk index indicating a risk of occurrence of artifact in the depth of field increased image, and corrects the depth of field increased image on a basis of the risk index.
Abstract: An endoscope includes: a first bending wire that is connected with a first connection part of a bending portion of an insertion portion inserted into a subject and bends the entire bending portion in a first bending direction by pulling; a second bending wire that is connected with a second connection part of the bending portion positioned on a proximal end side of the first connection part and bends a proximal end side part of the bending portion on the proximal end side of the second connection part in the first bending direction by pulling; an operation lever that pulls the first bending wire to the proximal end side; an operation lever that pulls the second bending wire to the proximal end side; and a coil pipe into which the first and second bending wires are inserted at a position on the proximal end side of the bending portion.
Abstract: A distal end portion of an endoscope includes: a flexible printed circuit board on which a light-receiving unit mounting section, a first extending section, a light-emitting unit mounting section, and a second extending section are formed continuously; a stand on which the light-receiving unit mounting section is disposed in contact with the stand; a protruding portion including an inner wall surface, a protruding end surface, and an outer wall surface, in which the first extending section is disposed in contact with the inner wall surface, the light-emitting unit mounting section is disposed in contact with the protruding end surface, and the second extending section is disposed in contact with the outer wall surface; and a distal end cover that covers the stand and the protruding portion, with the second extending section being sandwiched between the distal end cover and the protruding portion.
Abstract: A light source apparatus for an endoscope includes an optical fiber that guides emission light emitted from a light source and is incident on a fiber end face, a ferrule having a ferrule end face having a through-hole in which the optical fiber is inserted, a holder to which the ferrule is fixed, the holder having a reflecting surface that reflects first reflected light to thereby emit second reflected light, the first reflected light being the emission light reflected on the fiber end face, and an optical sensor that receives the second reflected light disposed between the light source and the fiber end face and in a region facing the reflecting surface through an optical axis.
Abstract: A communication system including a transmission device and a reception device is provided. A processor of the transmission device is configured to store image data on a transmission buffer after deleting all the stored image data in a case in which a first condition and a second condition are met. The processor is configured to store the image data without deleting the stored image data in a case in which at least one of the first condition and the second condition is not met. The first condition indicates that a second transmission-completion frame this time is after a previous first transmission-completion frame. The second condition indicates that a third transmission-completion frame is not the next frame of the transmission-completion second frame. The third transmission-completion frame is a frame of the image data to be stored after confirming the transmission-completion frame this time.
Abstract: An endoscope reprocessor includes: a housing unit that houses a medicinal solution bottle such that a sealing portion is located on a top surface; a first guide that guides the housing unit such that the housing unit is capable of advancing and retreating between a first point and a second point; a movable unit that moves in cooperation with advancing of the housing unit; an unsealing member provided in the movable unit and arranged at a position higher than the sealing portion of the medicinal solution bottle housed in the housing unit at the first point, the unsealing member having a shape protruding toward the top surface at a predetermined length to pierce the sealing portion when the medicinal solution bottle reaches the second point by descending as the movable unit advances; and a second guide that guides an advancing direction of the movable unit.
Abstract: An endoscope connector includes: a plug including an electric contact configured to be electrically connected to an external medical apparatus, the plug being provided with a first substrate; a first frame electrically connected to the plug; a second frame electrically connected to the first frame, the second frame being made of metal; a first electric connection member electrically connected to the first substrate; a second electric connection member connected to the first electric connection member; a substrate unit including a second substrate and an electromagnetic shield member covering the second substrate, the electromagnetic shield member being made of metal; and an urging member configured to urge the substrate unit in a direction of the second frame, and to put the electromagnetic shield member into an electric conduction state by causing the electromagnetic shield member to abut on the second frame.
Abstract: In a solid-state imaging device, first electric charge is generated by at least two first photoelectric conversion elements in a first exposure period. At least two pieces of the first electric charge are added in a floating diffusion. A first memory stores a first pixel signal that is based on the first electric charge. Second electric charge is generated by at least one second photoelectric conversion element in a second exposure period. At least part of the second exposure period overlaps at least part of the first exposure period. The second electric charge is held in the floating diffusion. A second memory stores a second pixel signal that is based on the second electric charge.
Abstract: An endoscope front-end structure includes: an imaging module; a frame body that has a through hole and a salient portion, the frame body being configured to hold the imaging module when the imaging module is inserted in the through hole from an insertion opening formed at a proximal end of the frame body; a first adhesive agent that is filled and hardened between a part of outer periphery of a resin seal and a surface of the salient portion; and a second adhesive agent that is filled and hardened in a gap formed between the through hole of the frame body and the imaging module inserted in the through hole.
Abstract: An endoscope cleaning instrument detachably attachable to an insertion section of an endoscope from a distal end portion side of the insertion section includes a covering member having a tubular shape and being capable of covering, on an outer circumferential surface of a bending section connected consecutively to a proximal end of a distal end portion in the insertion section, a distal end side adhesive section disposed on a distal end side of the bending section and formed from an adhesive and a proximal end side adhesive section disposed on a proximal end side of the bending section and formed from the adhesive.
Abstract: A controller is used together with an energy treatment instrument including a first grasping piece, a second grasping piece, a reference electrode provided in the first grasping piece, a first counter electrode provided in the second grasping piece, and a second counter electrode provided in the second grasping piece. The controller includes a processor that acquires a first parameter relating to a thickness of a first portion of the treatment target, which is grasped between the reference electrode and the first counter electrode, and a second parameter relating to a thickness of a second portion of the treatment target, which is grasped between the reference electrode and the second counter electrode. The processor controls an amount of electric energy applied to one of the first portion or the second portion of the treatment target to be larger than another one of the first portion or the second portion.
Abstract: An optical deflector includes: a movable unit including a mirror having an optical reflection surface and a first rib formed on a back surface of the optical reflection surface, and a mirror holder configured to hold the mirror unit and having a second rib arranged in a direction intersecting the first rib and joined to the first rib at an intersection with the first rib; a pair of elastic members provided on both sides of the movable unit and configured to support the movable unit so as to be swingable about a swing axis; and a pair of supports connected to the elastic members and configured to support the elastic members, wherein the first rib includes a pair of first protrusions, and the second rib includes a pair of second protrusions.
Abstract: A guide wire holder includes a sheath having a lumen, an operation wire which is inserted through the lumen to be able to advance and retract, and a hook which is continuous with a distal end of the operation wire and protrudes from a distal end of the sheath, wherein the sheath has an inner wall surface which forms a groove configured to extend from the distal end of the sheath to a proximal end side of the sheath, the groove has an opening portion which opens to an outer peripheral surface of the sheath, the hook has a guide wire engagement surface which is engageable with a guide wire, and the guide wire is able to be held between the guide wire engagement surface and the inner wall surface.
Abstract: A treatment instrument includes first and second treatment bodies. The second treatment body includes a contact portion and a first surface. The first surface is adjacent to the contact portion in a width direction perpendicular to a longitudinal axis. The first surface includes a proximity edge which is in proximity to the contact portion; and an outer edge spaced from the contact portion from the longitudinal axis toward a side surface of a treatment portion in the width direction. Assuming that a virtual plane is defined to be perpendicular to the opening and closing directions in the closed state and passing through the proximity edge of the first surface, a distance between the outer edge and the virtual plane is larger than a distance between the proximity edge and the virtual plane.
Abstract: A lens array includes a plurality of lens parts arranged on a curved surface in a two-dimensional array. Each of the plurality of lens parts includes: a base part provided with a tapered side surface having an outer diameter that becomes smaller in a height direction away from the curved surface; and an apex part located on the base part and having a lens surface. There is an angular difference ?? between height directions of two adjacent lens parts of the plurality of lens parts. The angular difference ?? is smaller than an amount double a taper angle ? of the side surface of each of the two adjacent lens parts.
Abstract: An image pickup apparatus includes: an image pickup device including a plurality of pixels generating an image pickup signal corresponding to a light reception amount; a universal cable for transmitting electric power to the image pickup device; an AC-voltage-pulse-signal generation circuit provided on a proximal end side of the universal cable and generating an AC voltage pulse signal obtained by converting a positive voltage level and a negative voltage level of an inputted pulse signal into a predetermined positive voltage level and a predetermined negative voltage level, respectively, and outputting the AC voltage pulse signal to the universal cable; and a voltage adjustment circuit provided on a distal end side of the universal cable and converting the predetermined positive voltage level and the predetermined negative voltage level of the AC voltage pulse signal transmitted from the universal cable into a DC voltage level and output a DC voltage pulse signal.
Abstract: A focus adjustment device, comprising a processor that, during rapid shooting of still pictures, displays an image or performs processing for storage as still picture data based on a pixel signal output as a result of the first imaging operation from the image sensor, generates focus adjustment data by performing focus detection based on a pixel signal output as a result of the second imaging operation, and executes focus control, wherein the processor computes focus movement amount based on the focus adjustment data, and if the focus movement amount is larger than a predetermined value, and focus control based on the focus movement amount and the first imaging operation are executed in parallel, prohibits processing for storage as a still picture on image data based on a pixel signal of the first imaging operation.