Abstract: A surgical system capable of securing a large movable range of a tip end of a surgical instrument even when the surgical instrument is inserted into a narrow region. One example of the surgical system includes: a manipulator; a surgical instrument including a shaft coupled to a tip end portion of the manipulator; a manipulation input portion to which an operator inputs a command regarding a position and posture of the surgical instrument; a control apparatus configured to control an operation of the manipulator based on the command input to the manipulation input portion; and a motion center position setting portion configured to set a desired position as a motion center position of the surgical instrument in the control apparatus, the desired position being located in an inner part under a body surface of the patient.

Abstract: An optical connection component includes: a glass plate formed of a glass material capable of transmitting ultraviolet rays, the glass plate having a first surface, a second surface opposite to the first surface, and one or a plurality of first through holes penetrating from the first surface to the second surface; a resin ferrule fixed to the first surface of the glass plate and having one or a plurality of second through holes each having a central axis coaxial with the central axis of the one or a plurality of first through holes; and one or a plurality of optical fibers including a glass fiber and a resin coating covering the outer periphery of the glass fiber, wherein the glass fiber exposed from the resin coating at the tip end of each of the one or a plurality of optical fibers is received in the one or a plurality of first through holes and the one or a plurality of second through holes.

Abstract: Simulated are postures each formed by a manipulator arm and a surgical instrument when a tip end portion of the surgical instrument is located at a three-dimensional position of each lattice point in a lattice model set so as to correspond to the manipulator arm, the surgical instrument being held by the manipulator arm. Extracted is such a combination of the lattice points in the lattice models that the postures interfere with each other. Data of the combination which causes the interference is stored in a storage portion. It is determined whether or not an operating command transferred to a control portion corresponds to the combination which causes the interference. When it is determined that the operating command corresponds to the combination which causes the interference, the control portion executes interference preventing processing.

Abstract: Provided is a polyurethane-modified epoxy resin having favorable processing operability in casting, impregnation, or the like in a composition state, a method for producing the same, and a composition of the same. Provided is a low-concentration polyurethane-modified epoxy resin including: a polyurethane having a secondary hydroxyl group-containing bisphenol-based epoxy resin that has an epoxy equivalent of 150 to 200 g/eq and a hydroxyl equivalent of 2,000 to 2,600 g/eq, added to both terminals and/or a single terminal thereof, in which the polyurethane is a modified product of the epoxy resin that is modified with a middle- and high-molecular-weight polyol compound having an Mn of 200 or larger, a polyisocyanate compound, and a low-molecular-weight polyol compound as a chain extender having an Mn of less than 200, and the epoxy resin is used in an amount of 68 to 92 weight % based on a total amount of the components.

Abstract: An optical fiber array includes: a multicore optical fiber in which the outer peripheral shape of cladding in a cross section has first and second convex surfaces symmetric with respect to a first axis, and first and second surfaces symmetric with respect to a second axis and closer than extensions of the first and second convex surfaces to the second axis; an arrangement component including a groove having a trapezoidal shape having first and second side surfaces mutually facing such that sectional shapes become closer toward a grove bottom, and a bottom surface; and a pressing member. With the first surface in surface contact with the pressing member, the first convex surface or a boundary portion between the first convex surface and the second surface, and the second convex surface or a boundary portion between the second surface and the second convex surface are in contact with the first and second side surfaces, respectively.

Abstract: One or more embodiments of an operation table may include a table on which a patient is to be placed; a base fixed on a floor; and a robot arm comprising joints, a first end supported by the base, and a second end supporting the table, wherein the robot arm takes a first posture in which the robot arm is stored in a storage space that is a space under the table when the table is positioned at a first position, and the robot arm moves the table to a second position which is away from the first position by taking a second posture in which at least part of the robot arm horizontally protrudes from the storage space.

Abstract: The embodiment relates to an optical connection component including a bent optical fiber having a bent portion including a region where a curvature of the bent portion is maintained at 0.4 [l/mm] or more while substantially no bending stress remains. The bent optical fiber comprises a core, a first cladding, a second cladding, and a third cladding. Based on the third cladding, a relative refractive index difference ?1 of the core, a relative refractive index difference ?2 of the first cladding, and a relative refractive index difference ?3 of the second cladding satisfy relationships of ?1>?2>?3 and ?3<?0.5 [%]. The product V3 of the ?3 and a cross-sectional area S of the second cladding is less than ?200 [%·?m2]. The curvature in the bent portion is 0.6 [l/mm] or less over an entire length of the bent portion.

Abstract: A method of producing an optical connection component in which a surrounding of a plurality of bent glass fibers is integrally coated with resin. The method includes a step of preparing upper and lower molds for molding around a fiber array in which the plurality of glass fibers are arranged in a specified arrangement direction. The molds have two walls spaced apart from each other by a larger distance than the width of the fiber array. The method also includes a step of providing around the fiber array the molds such that each of the walls is disposed outside a corresponding one of two glass fibers that are included in the plurality of glass fibers and that are located at respective sides of the fiber array. The method also includes a step of supplying the resin into the molds.

Abstract: A stopper according to one or more embodiments may include: a stopper body; and a rotation restriction portion provided at the stopper body and configured to restrict rotations of the drive transmission member. The stopper may be configured such that the rotation restriction portion restricts the rotations of the drive transmission member in a state where the stopper body is attached to the adaptor main body and the rotation restriction portion releases the restriction of the rotations of the drive transmission member in a state where the stopper body is detached from the adaptor main body.

Abstract: The adapter includes: a base body that includes a first surface attached to a robot arm, and a second surface to which a surgical instrument is attached; an engaging portion that engages with the robot arm at an advanced position corresponding to an opening of the first surface; an urging member that urges the engaging portion in a direction from a retracted position to the advanced position; an operation portion connected to the engaging portion to shift the engaging portion to the retracted position while resisting an urging force of the urging member; and a stopper that stops the operation portion to prevent a shift of the engaging portion from the retracted position to the advanced position.

Abstract: An optical connection component 1 includes an optical fiber 10 having a bent portion BA, and a fiber fixing part 20. The optical fiber 10 includes a glass fiber 11 and a resin coating 12. The fiber fixing part 20 includes an optical array member 24 and a protective resin 23. A distal end of the glass fiber 11 and an end surface of the optical array member 24 form a reference surface S. The bent portion BA is formed in a region including the exposed glass fiber 11. A predetermined section in a region C, which continues from the bent portion BA on a side opposite to an end portion of the optical fiber 10 supported by the fiber fixing part 20 with the bent portion BA interposed therebetween, is inclined to approach the reference surface S while going away from the bent portion BA.

Abstract: An optical connector includes an optical fiber including a glass fiber and a resin coating surrounding the glass fiber; a ferrule having a flange outside the ferrule and holding, inside the ferrule, a portion of the glass fiber exposed from the resin coating at an end of the optical fiber; a plug frame accommodating the ferrule; and an elastic member abutting the flange and biasing the ferrule forward in an optical axis direction of the optical fiber to retain the ferrule inside the plug frame. The flange and the plug frame have a protrusion and a recess that allow the flange and the plug frame to be fitted to each other at the predetermined position. When the ferrule is moved rearward in the optical axis direction, the protrusion and the recess are released from each other to bring the ferrule into a floating state relative to the plug frame.

Abstract: There is provided a method for producing a multicore optical fiber while depressurizing holes in a common cladding tube. A production method for a multicore optical fiber includes a preform forming step of forming a common cladding tube having a plurality of holes extending between a first end and a second end, an end-face working step of digging the common cladding tube from the second end to a predetermined depth to forming a third end, a connection step of connecting a glass tube to the second end, an insertion step of inserting core rods into the holes to the third end, a sealing step of sealing the first end, and a drawing step of spinning the multicore optical fiber while depressurizing the holes through the glass tube and combining the common cladding tube and the core rods from the first end.

Abstract: A hydraulic forceps system includes: robotic forceps whose gripper is opened and closed by utilizing hydraulic pressure of a hydraulic fluid; a pressure sensor that detects a pressure of the hydraulic fluid; and a control device that calculates a current gripping force of the gripper based on the pressure of the hydraulic fluid detected by the pressure sensor; and a monitor that displays the current gripping force.

Abstract: Disclosed is a medical robot system including medical robots placed at different locations and a data analysis apparatus. Each of the medical robots includes a controller that transmits data on a state of operation of the medical robot to the data analysis apparatus. The data analysis apparatus includes a data analysis unit that generates a reference for determining whether or not the medical robots are normal, based on the data transmitted from the medical robots. The data analysis unit monitors the data transmitted from each of the medical robots in operation based on the reference.

Abstract: The embodiment relates to an optical connection component including a bent optical fiber having a bent portion including a region where a curvature of the bent portion is maintained at 0.4 [l/mm] or more while substantially no bending stress remains. The bent optical fiber comprises a core, a first cladding, a second cladding, and a third cladding. Based on the third cladding, a relative refractive index difference ?1 of the core, a relative refractive index difference ?2 of the first cladding, and a relative refractive index difference ?3 of the second cladding satisfy relationships of ?1>?2>?3 and ?3<?0.5 [%]. The product V3 of the ?3 and a cross-sectional area S of the second cladding is less than ?200 [%·?m2]. The curvature in the bent portion is 0.6 [l/mm] or less over an entire length of the bent portion.

Abstract: A remote control apparatus according to one or more embodiments may include a display, an operation handle, an armrest, and a supporting mechanism. The supporting mechanism includes a supporting section that supports the display, the operation handle, and the armrest and a driver configured to move the supporting section in an up-and-down direction. The supporting mechanism is configured, upon transitioning between a first mode and a second mode, to move the supporting section by the driver in the up-and-down direction to move the display, the operation handle, and the armrest in an integrated manner in the up-and-down direction.

Abstract: The present embodiment achieves effective height reduction of an entire optical connection component constituted by a bent optical fiber and a fiber fixing component. The fiber fixing component includes a first portion and a second portion which constitute the holding portion in a state of being arranged in a manner interposing an installation plane in order to hold one of non-bent sections positioned at both ends of a bent portion in a state where the one of non-bent sections is arranged on the installation plane. Total lengths of the first portion and the second portion are different from each other, and effective height reduction of the entire optical connection component can be achieved by arranging the bent portion in a stepped portion formed by the total length difference.

Abstract: There is provided a method for producing a multicore optical fiber while reducing the mass of a glass block to be connected to a common cladding tube. A production method for a multicore optical fiber includes in order, a preform forming step of forming a common cladding tube having a plurality of holes extending between a first end and a second end, an insertion step of inserting core rods in the holes in a state in which end portions of the core rods are recessed from the first end, a heat shrinkage step of reducing a diameter of the first end by heating, a sealing step of sealing the holes by connecting a glass block to the first end, and a drawing step of depressurizing insides of the holes from the second end and performing spinning from the first end while combining the common cladding tube and the core rods.

Abstract: An adaptor for detachably connecting a surgical instrument to a robot arm of a robotic surgical system according to an embodiment may include: a base body including a first surface to be attached to the robot arm and a second surface to which an attachment surface of the surgical instrument is mounted; and drive transmission members rotatably provided on the base body. The second surface of the base body includes first and second guide rails respectively corresponding to first and second guide grooves provided on the attachment surface of the surgical instrument. The first and second guide rails of the second surface are configured to be inserted respectively into the first and second guide grooves of the attachment surface, and guide the surgical instrument to be slid to a position where the drive transmission members respectively correspond to rotation members provided on the attachment surface of the surgical instrument.