Abstract: A capsule endoscope system includes a capsule endoscope and a wireless communication device. The capsule endoscope includes a first movement sensor, a determiner, an imager, and a first wireless receiver. The wireless communication device includes a second analyzer and a first wireless transmitter. The first analyzer analyzes first data and generates a first analysis result. The second analyzer analyzes second data and generates a second analysis result. The determiner determines an imaging timing at a period that is equal to or shorter than a reception period on the basis of any one of the first analysis result and the second analysis result.
Abstract: Provided is an observation system including: a monitor; a CPU that identifies, in a 3D image including the plurality of cells, the respective cells by assigning labels that differ from one another to the respective cells, that associates three mutually-intersecting cross-sectional images that constitute the 3D image, and that simultaneously displays the cross-sectional images on the monitor; and an input unit with which an operator specifies an arbitrary cell in any of the cross-sectional images displayed on the monitor. The CPU extracts, from the 3D image, the cross-sectional shapes, in the respective cross-sectional images, of the cell specified by using the input unit, on the basis of the labels, associates the extracted cross-sectional shapes of the cell with one another, and displays the extracted cross-sectional shapes in the respective cross-sectional images displayed on the monitor, in a distinguishable manner from the other cells.
Abstract: A treatment system includes: a probe including an energy generator provided in the probe and configured to generate energy, and a treatment surface provided at a distal end of the probe and configured to apply the energy to a living tissue; and a controller including a hardware, the controller being configured to: acquire a temperature of an outer surface of the probe other than the treatment surface; sequentially store temperatures of the energy generator in association with times when the temperatures of the energy generator are acquired; store a plurality of weighting factors calculated by experiment in advance in association with times going back from a current time to a past time; and multiply the sequentially stored temperatures of the energy generator and the plurality of weighting factors for the corresponding times, perform integration, and estimate the temperature of the outer surface.
Abstract: An optical scanning observation system includes: a light-guide that guides illumination light; an actuator that causes the end portion of the light-guide to oscillate, to thereby be capable of shifting an irradiation position of the illumination light emitted to an object; a light detection section that generates a light detection signal based on return light from the object, and output the generated light detection signal; an error angle acquisition section that acquires an error angle indicating a degree of deviation of the irradiation position of the illumination light; and an image generation section that generates a rotated image by rotating pixel information acquired by converting the light detection signal outputted from the light detection section by an angle acquired by subtracting the error angle from a desired angle of rotation.
Abstract: A drive device includes a noise signal calculation unit, a signal correction unit, and a drive controller. The noise signal calculation unit calculates a noise signal corresponding to a magnetic flux generated from a current flowing through a drive coil. The signal correction unit corrects a detection signal detected by a detector based on the noise signal. The drive controller controls a drive signal to be applied to the drive coil based on a corrected signal obtained by the signal correction unit. The noise signal calculation unit acquires an amplitude of a predetermined frequency band including a frequency of a high-frequency drive signal, and calculates the noise signal included in the detection signal based on the acquired amplitude.
Abstract: An endoscope system includes an imaging element, a voltage-current conversion circuit, a first coaxial cable, and an impedance conversion circuit. The imaging element generates a first voltage. The voltage-current conversion circuit is disposed inside or outside the imaging element and converts the first voltage into a first current. The first coaxial cable has a first conductor and a second conductor. The second conductor is disposed outside the first conductor. The first current is transmitted through the first conductor. The first current transmitted through the first conductor is input to the impedance conversion circuit. The impedance conversion circuit outputs a second current according to the first current. A second voltage according to the first current is input to the second conductor.
Abstract: A shape calculating apparatus includes a light source, an optical fiber provided with detection targets. The detection targets have mutually different light absorption spectra to decrease a quantity of light propagated by the fiber in accordance with a bend shape of the fiber. The apparatus also includes a light detector to detect light quantity information at wavelengths included in the light absorption spectra, a calculator to execute a calculation relating to a shape of each detection target based on the light quantity information. The apparatus further includes a setting change unit to change, with respect to each of the wavelengths, a dynamic range of at least either an intensity of light input to the optical fiber or an electric signal generated by the detector.
January 12, 2018
July 19, 2018
Koichi TAKAYAMA, Hiromasa FUJITA, Ken SATO
Abstract: A drive device includes a drive controller. The drive controller controls a drive signal on which a high-frequency drive signal is superimposed on a drive current to drive a movable frame and which is to be applied to a drive coil. The drive controller drives the movable frame to a predetermined position based on a detection signal detected by a detector and a high-frequency signal of a predetermined frequency band including a frequency of the high-frequency drive signal that is generated in a detection coil when the drive signal is applied to the drive coil.
Abstract: An endoscope apparatus includes: a light-emitting element; a rolling shutter-type image pickup device allowing an exposure period in which the plurality of lines are simultaneously exposed and a reading period in which image pickup signals of the respective lines are sequentially read to be alternately switched to each other; and a control section. The control section controls an intensity of the light emitted by the light-emitting element. The control section can perform switching between a first illumination mode in which the light is applied from the light-emitting element in the exposure period and the reading period and a second illumination mode in which the light is applied from the light-emitting element only in the exposure period, and if the intensity of the light is controlled so as to have a predetermined value, performs control to switch one of the first mode and the second mode to the other.
Abstract: A treatment method which treats a living tissue using an ultrasonic device includes making the ultrasonic device come in contact with the living tissue in a state where the product of a pressing force of the ultrasonic device to the living tissue, an amplitude of an ultrasonic vibration caused by the ultrasonic device, and a resonance frequency of the ultrasonic device becomes a predetermined value, and excising the living tissue in a state where the ultrasonic device is in contact with the living tissue.
Abstract: According to an embodiment of the present invention, there is provided a ligation device that includes an insertion portion that has a lumen through which are passed a ligature having a first end having a contractible loop formed by a knot, and a pull thread having a folded-back portion fed through the loop; an operation portion provided at a proximal end portion of the insertion portion, the operation portion including a anchoring portion to which a first end of the pull thread is anchored; and a movable member movable relative to the operation portion while switching between a first state in which a second end of the pull thread is anchored to the movable member and pulled and a second state in which the ligature is pulled and the pull thread is let out simultaneously.
Abstract: An endoscope apparatus includes an illumination apparatus that applies first and second narrow-band light having different peak wavelengths to a subject, an imaging device that acquires image light from the subject with pixels to generate an acquisition image signal, and an image processing circuit. The image processing circuit includes a storage that has stored assumed subject types including information about a wavelength range of assumed subjects, and a subject type decision circuit that decides an assumed subject type for part of the pixels based on a first image signal about the first narrow-band light, a second image signal about the second narrow-band light, and the assumed subject types. The image processing circuit constructs a display image signal based on the acquisition image signal and decided assumed subject type.
Abstract: An endoscope apparatus includes a spectroscopic section disposed on an optical axis of return light from an object irradiated with visible light, first excitation light and second excitation light including a longer wavelength than a wavelength of the first excitation light and configured to separate and emit the light of a second wavelength band other than light of a first wavelength band, a first excitation light cut filter configured to block a wavelength band of one of the first excitation light and the second excitation light included in the return light, and a second excitation light cut filter configured to block a wavelength band of another excitation light of the first excitation light and the second excitation light and a wavelength band of the visible light.
Abstract: An image-processor includes: a discrete-motion-vector calculator calculating motion vectors of individual measurement regions and confidences thereof based on a standard image and a reference image or a combined image generated based on the reference image; a global-vector calculator separately calculating, based on the motion vectors and the confidences thereof, a global vector of the standard image, a confidence thereof, a local vector of a processing target region in the standard image, and a confidence of the local vector; a local-vector interpolator; a local-vector-confidence interpolator; a motion-vector selector selecting the local vector or the global vector based on at least one of the local vector, the confidence thereof, the global vector, and the confidence thereof; a motion-compensated-image generator generating, based on the selected vector, a motion-compensated image of the reference image or the combined image; and a blender weighted adding the processing target region and the motion-compensat
Abstract: Provided is a medical system including a first slave arm; a master arm having a joint configuration with a structure similar to that of a joint configuration of the first slave arm; a second slave arm; a manipulation-target switching unit that switches a manipulation target to be manipulated with the master arm between the slave arms; and a controller that is capable of switching between a first control mode and a second control mode in accordance with the joint configuration of the slave arm to be controlled. The first control mode is a mode for controlling rotation of joints of the first slave arm on the basis of rotation amounts of joints of the master arm. The second control mode is a mode for controlling rotation of joints of the second slave arm on the basis of a movement of a predetermined section of the master arm.
Abstract: The optical scanning endoscope apparatus (10) includes: an illumination optical fiber (11) guiding light form lasers (33R, 33G, 33B) and irradiating the light toward an object (100) from an oscillatably-supported tip part of the fiber; an actuator (21) vibratorily driving the tip part of the illumination optical fiber (11); a photodetector (35) detecting light resulting from the object (100) irradiated with the light from the lasers (33R, 33G, 33B) and converting the detected light into an electric signal; a signal processor (37) generating pixel information based on the electric signal output by the photodetector (35); and a light detection controller (31a) controlling a detection property of the photodetector (35) in a period other than an effective detection period.
Abstract: A driving device includes an output voltage decomposing unit which decomposes an output voltage applied to an ultrasonic transducer into a basic and harmonic components; an output current decomposing unit which decomposes an output current flowing through the ultrasonic transducer into a basic and harmonic components; a capacitor current calculator which calculates a basic and harmonic components of a capacitor current, based on the basic and harmonic components of the output voltage; a driving current calculator which calculates a basic and harmonic components of a driving current based on the basic and harmonic components of the output current and the capacitor current, a driving current summing unit which sums up the basic and harmonic components of the driving current, and a constant current controller which generates constant current control data.
Abstract: A flash unit capable of being attached to a flash control unit, comprising: a memory that stores information relating to a light emission time for actual flash corresponding to a difference between an emitted light amount command value for actual flash and an emitted light amount command value for pre-flash, and a controller, including an light emission time calculation section that obtains light emission time corresponding to emitted light amount command value for actual flash based on emitted light amount command value for pre-flash, emitted light amount command value for actual flash, and information stored in the memory, wherein the controller inputs the emitted light amount command value for pre-flash and the emitted light amount command value for actual flash acquired to the light emission time calculation section, and controls actual flash of the flash light emitting source based on the light emission time.
Abstract: An image generation apparatus, system, and method that include a position detector that acquires photography position information, a communicator that acquires at least one surrounding map image viewable from the photography position when a captured image is captured, and an image generator that generates at least one virtual image of a selected avatar image and the at least one surrounding map image.
Abstract: An eyeglass-type wearable device includes a first temple part positioned along one temporal region of a user, a second temple part positioned along the other temporal region of the user, and a front part positioned in front of the face of the user, when the eyeglass-type wearable device is worn by the user. The front part includes an electrical unit including an imaging device, and a first and second connection sections to which the first and the second temple parts can be connected, and at least one of the first and the second temple parts includes a temple-side electrical unit. The first and second temple parts can be attached to and removed from the first and second connection sections of the front part. Information about an image captured by the imaging device included in the front part is transmitted from the front part to the temple-side electrical unit.