Abstract: According to an aspect of the invention, an imaging apparatus includes an imaging section, a user's operation detecting circuit, a control circuit, and an image processing circuit. The imaging section is configured to capture images of an object at different imaging positions and output image signals based on the images. The user's operation detecting circuit is configured to detect a user's operation. The control circuit is configured to change an image display range in accordance with the user's operation, and cause the imaging section to capture the images at the different imaging positions in accordance with the changed image display range. The image processing circuit is configured to generate image data using the image signals acquired at the imaging positions. The image data corresponds to an area of the image display range changed by the user's operation.
August 7, 2018
February 14, 2019
Ko YOKOKAWA, Tetsuya SHIROTA, Osamu ONO, Yoshiyuki FUKUYA, Akira TANI, Kazuhiko OSA, Osamu NONAKA
Abstract: An image processing apparatus determines, with a freeze signal, an image of a freeze target, or determines, with no freeze signal, a latest image as an image to be displayed; performs color-balance adjustments using first and second parameters, based on the imaging signal of the determined image, thereby generating first and second imaging signals, respectively; generates a display purpose imaging signal, based on the generated first imaging signal; detects signals of plural color components included in the second imaging signal; calculates, based on the detected signals, a color-balance parameter for the color-balance adjustment; sets, when inputting no freeze signal, a latest color-balance parameter calculated, as the first and the second parameters, or sets, when the freeze instruction signal is input, a color-balance parameter corresponding to the image of the freeze target as the first parameter and the latest color-balance parameter as the second parameter.
Abstract: An A/D converter includes a reference voltage generating circuit that generates a reference voltage of a ramp waveform in which a voltage value changes with time, a gray code generating circuit that outputs a gray code based on a same reference clock as the reference voltage generating circuit, a comparison circuit that compares the reference voltage with an input voltage, a latch circuit that holds a count value of the gray code based on an output signal of the comparison circuit, a code conversion circuit that serially converts the count value of the gray code held in the latch circuit into a binary code, and a calculation processing circuit that stores a count value of the binary code output from the code conversion circuit, and performs calculation processing based on the stored count value of the binary code and a next input count value of the binary code.
Abstract: The present invention provides a display processing device for superimposing a superimposed image for displaying additional information on a display image on the basis of transparency information when each pixel is displayed and causing the superimposed image superimposed on the display image to be displayed.
Abstract: A light sheet microscope includes a light source configured to output light, a plurality of optical fibers configured to guide the light that is from the light source, a plurality of illumination optical systems configured to respectively emit beams of the light guided from the plurality of optical fibers toward a sample as light sheets in a plurality of different directions on a same plane, and a light switching device that is provided between the light source and the plurality of optical fibers and that is configured to switch an optical fiber that the light output from the light source enters, from among the plurality of optical fibers.
Abstract: An image processing device includes: a frame memory that saves a cyclic image of an immediately preceding frame as a reference image; and a processor comprising hardware. The processor is configured to: decompose an input image into a plurality of resolution images; set, as a base image, an image having a lower resolution than the input image among the plurality of resolution images and that detects a motion vector between the base image and the reference image; subject the reference image to motion compensation on the basis of the motion vector to generate a motion-compensated image; combine the base image with the motion-compensated image to generate a noise-reduced base image that serves as a new cyclic image; and combine the noise-reduced base image with the resolution image or resolution images other than the base image among the plurality of resolution images.
Abstract: An optical fiber scanner including: an optical fiber configured to emit, from a distal end thereof, illumination light guided from a light source; and at least three flat-plate-shaped piezoelectric elements that are disposed at positions spaced apart from the distal end that are closer to a proximal end of the optical fiber in the longitudinal axis direction and configured to vibrate the distal end of the optical fiber in a direction intersecting the longitudinal axis, wherein each of the piezoelectric elements has chamfered sections on both widthwise ends along at least a portion thereof in a longitudinal direction, and the piezoelectric elements adjacent in a circumferential direction are assembled into a tubular shape that surrounds the outer circumferential surface of the optical fiber in a close contact manner in a state where the chamfered sections are brought into close contact with one another.
Abstract: An ultrasound medical apparatus includes an ultrasound transducer configured to generate ultrasound vibration, a vibration transmitting member including a contact surface configured to contact a biological tissue, a high heat conductive member placed in a center of the contact surface, and a low heat conductive member placed around the high heat conductive member, and configured to transmit the ultrasound vibration to the biological tissue, and a control apparatus configured to control drive of the ultrasound transducer to a first mode of driving at a first resonance frequency of the ultrasound transducer, and a second mode of driving at a second resonance frequency of a structure provided with the ultrasound transducer and the vibration transmitting member.
Abstract: An adhesion preventing film coated on a surface of a member, includes a surface layer with siloxane bonding as a main component; and protrusion particles, each protrusion particle having a protrusion part protruding from the surface layer, wherein a methyl group exists at least on a surface of the protrusion part of the protrusion particle.
Abstract: A variable-stiffness actuator system includes a shape-memory member in which a stiffness increases by being heated and decreases by radiating heat, a heating member configured to generate heat, a channel arranged along the longitudinal axis of the shape-memory member, a transfer section configured to selectively supply and stop first and second heat transmission fluids into the channel, and a controller configured to control the transfer section. The controller causes the transfer section to supply the first heat transmission fluid and then supply the second heat transmission fluid into the channel, and further to stop the supply of the second heat transmission fluid so that retention of the first and second heat transmission fluids simultaneously occurs in the channel.
Abstract: In a treatment system, an energy treatment instrument includes a pair of grasping pieces closing with respect to each other. An energy output source outputs electric energy to the energy treatment instrument, thereby applying treatment energy to a treatment target grasped between the grasping pieces. A processor creates an optical flow of the treatment target observed by an observation element, and switches an actuation state of the energy treatment instrument between a first mode for treating the treatment target and a second mode for treating the treatment target that is different from the first mode, based on the optical flow.
Abstract: An energy treatment instrument includes: a first jaw including a first holding surface including a first end region, a second end region and a first reference position; a second jaw including a second holding surface including a third end region, a fourth end region and a second reference position; a first electrode disposed in the first end region; and a second electrode disposed in one of the second end region and the fourth end region, electrical current being applied between the first electrode and the second electrode. In a state in which the first holding surface and the second holding surface face each other, a clearance between the first holding surface and the second holding surface is continuously changed toward the first reference position and the second reference position and a clearance between the first reference position and the second reference position is greatest.
Abstract: A flexible tube insertion apparatus includes a flexible tube to be inserted into an insertion target body, a variable stiffness portion that changes a bending stiffness of the flexible tube, a state detection sensor that detects state information of the flexible tube. The apparatus also includes a shape calculator that calculates shape information regarding a shape of the flexible tube based on the state information, an external force calculator that calculates external force information including magnitude of an external force received by the flexible tube based on the state information, and a stiffness controller that controls the variable stiffness portion in accordance with the shape information so that the magnitude of the external force received by the flexible tube becomes smaller than a reference value.
Abstract: In a treatment system, a treatment instrument includes a pair of grasping pieces each of which includes an electrode. A control device outputs electric energy to the electrodes and thereby supplies a high-frequency current to a treatment target. The control device switches between a first mode and a second mode that is different from the first mode in control scheme regarding output of the electric energy to the electrodes, based on a load that acts on one of the grasping pieces.
Abstract: A disclosed cable connection structure includes a circuit board that includes a first main body portion and a second main portion that includes a shield set portion, a shield connection electrode, and a plurality of core wire connection electrodes; and a plurality of coaxial cables each of which is processed such that a core wire, an internal insulator, and a shield are exposed from a tip portion in a stepwise manner, where the core wires are connected to the respective core wire connection electrodes and the shields are collectively connected to the shield connection electrode. The second main body portion and the coaxial cables are positioned within a projection plane of a front surface that is perpendicular to a principal surface of the first main body portion.
Abstract: An illumination optical system according to the present invention is provided with: an illumination-light guiding portion configured to guide illumination light emitted from a light source portion; and an illumination-light deflecting portion configured to emit the illumination light guided thereto by the illumination-light guiding portion after deflecting the illumination light by means of reflection, wherein, in one cross-section along a direction in which the illumination light travels, the illumination-light guiding portion has a pair of total reflection surfaces in which the distance therebetween gradually increases in a forward traveling direction of the illumination light, and the illumination-light deflecting portion is provided with an emission surface from which the illumination light guided by the illumination-light guiding portion is emitted, and a reflection surface that has a convex shape facing the emission surface and that reflects the illumination light guided by the illumination-light guidin
Abstract: An instrument insertion assisting tool includes a wire attaching member, a guide piece, and a first engaging member. The wire attaching member is configured to be attached to a manipulator of an endoscope at a position adjacent to a forceps plug and offset from a seal hole of the forceps plug. The forceps plug is attached to a forceps port of the manipulator and has the seal hole through which a wire is inserted. The guide piece projects from the wire attaching member. The guide piece is configured to direct the wire so that a first portion of the wire is directed along a central axis of the seal hole. The first engaging member projects from the wire attaching member. The first engaging member is configured to direct the wire so that a second portion of the wire is directed along the wire attaching member.
Abstract: A flexible tube insertion apparatus includes a flexible tube segmented into segments aligned its central axis and to be inserted into a target body, a variable stiffness portion to vary a bending stiffness of the tube, a detection sensor to detect state information on the tube, a calculator to calculate shape information on the tube based on the state information, and a controller to control a change of the stiffness implemented by the variable stiffness portion. The controller controls the change of the stiffness to a segment corresponding to a displacement portion of an insertion path, in accordance with a displacement quantity of a second path of the tube based on the shape information calculated at a second time, with respect to a first path of the tube based on the shape information calculated at a first time.
Abstract: An endoscope includes: an illuminator configured to guide illumination light from a light source capable of emitting the illumination light intermittently and apply the illumination light to an object; an imaging element including a light receiver where multiple pixels configured to receive light and perform photoelectric conversion to generate electric signals are arranged in a two-dimensional matrix, and a reader configured to sequentially read the electric signals per horizontal line from each of the multiple pixels; a generator configured to, based on a first vertical synchronization signal that is input from an external processor and reference timing of exposure of the imaging element with the illumination light, generate a second vertical synchronization signal for controlling timing at which the reader reads the electric signal; and an imaging controller configured to cause the reader to read the electric signals sequentially according to the second vertical synchronization signal.
October 16, 2018
February 14, 2019
Yasunori MATSUI, Shinji YAMASHITA, Yuzuru TANABE, Yuta MATSUNO
Abstract: An insertion system includes an insertion section and a rigidity variable portion provided in the insertion section. The rigidity variable portion includes a superelastic alloy member whose rigidity starts changing from a high-rigidity state to a low-rigidity state at a temperature, which varies with a degree of bending of the superelastic alloy member, and a heating member capable of switching between presence and absence of heating of the superelastic alloy member. The insertion system also includes a bending state detection sensor that detects a bending state of the rigidity variable portion, and a rigidity variable controller that controls switching between presence and absence of heating of the superelastic alloy member by the heating member to control the temperature of the superelastic alloy member.