Abstract: A resin composition contains a maleimide compound (A), a cyanate ester compound (B), a polyphenylene ether compound (C) with a number average molecular weight of not lower than 1000 and not higher than 7000 and represented by Formula (1), and a block copolymer (D) having a styrene backbone. In Formula (1), X represents an aryl group; —(Y—O)n2- represents a polyphenylene ether moiety; R1, R2, and R3 each independently represent a hydrogen atom, an alkyl group, an alkenyl group, or an alkynyl group; n2 represents an integer of from 1 to 100; n1 represents an integer of from 1 to 6; and n3 represents an integer of from 1 to 4.

Abstract: An acoustic wave device includes an insertion object having a photoacoustic wave generator, a light source that irradiates the photoacoustic wave generator with light, an insertion object image signal generator that generates an insertion object image signal from a photoacoustic wave reception signal from the photoacoustic wave generator, and an insertion object display image signal generator that generates an insertion object display image signal having a center at a peak position where a signal strength of the insertion object image signal becomes a peak value, having a maximum width corresponding to a predetermined reference signal width, and having a signal strength corresponding to the peak value at the center.

Abstract: An acoustic wave device includes: an insertion object having a photoacoustic wave generator; an insertion object image signal generator that generates an insertion object image signal from a reception signal of an acoustic wave from the photoacoustic wave generator; a first signal width detector that detects a first signal width of a portion of a predetermined signal strength in the insertion object image signal; and an insertion object display image signal generator that generates, in a case where the first signal width is larger than a second signal width, an insertion object display image signal of a width having a center at a peak position of the insertion object image signal and corresponding to the second signal width, and generates, in a case where the first signal width is smaller than the second signal width, an insertion object display image signal having a width smaller than the second signal width.

Abstract: An ultrasound diagnostic apparatus includes a probe having an array transducer, a transmitting unit that transmits an ultrasound beam from the array transducer, an insertion device insertable into a subject and having a photoacoustic wave generation unit, a light source that irradiates the photoacoustic wave generation unit with light to generate a photoacoustic wave, a sequence control unit that performs control so that a photoacoustic wave is received each time the array transducer receives an ultrasound echo along a predetermined number of scan lines, an insertion depth detection unit that detects an insertion depth of the insertion device on the basis of a photoacoustic wave reception signal, and a notification unit that provides a notification to a user in a case where the insertion depth of the insertion device is deeper than a determined depth.

Abstract: A ultrasonic oscillator unit including an ultrasonic oscillator array in which a plurality of oscillators are arranged in a circular-arc shape; an electrode part that is provided on at least one end surface of the plurality of oscillators perpendicular to a longitudinal direction thereof and that is electrically connected with the oscillators; a backing material layer that is disposed on a rear surface of the ultrasonic oscillator array; and a cable wiring part including a flexible printed wired board. The flexible printed wired board includes a cable connecting part that extends to a lower side of the backing material layer, is separated into a plurality of belt-like pieces, and has, in a comb shape, a plurality of strip-like electrode parts in which at least one electrode pad is linearly disposed in the longitudinal direction of each of the belt-like pieces.

Abstract: An ultrasound diagnostic apparatus includes a quadrature detection section configured to perform quadrature detection on reception radio-frequency data generated by a reception circuit to generate complex data, a frequency analyzer configured to perform a first frequency analysis using the complex data of a set number of sample points starting from a first start point and a second frequency analysis using at least one group of the complex data of the set number of sample points starting from a second start point that is different from the first start point, and to acquire a spectral signal corresponding to each pixel of a Doppler waveform image based on results of the first frequency analysis and the second frequency analysis, and a Doppler waveform image generator configured to generate the Doppler waveform image using the spectral signal.

Abstract: The electronic device includes a case, an antenna element, a heat source, a heat dissipation member, a heat conduction member, a cooling fan, an exhaust port, and an exhaust duct. The case has a pair of main surfaces and side surfaces. The antenna element is used to perform wireless communication. The heat dissipation member exchanges heat with a cooling wind. The heat conduction member conducts heat of the heat source to the heat dissipation member. The cooling fan generates the cooling wind to be blown to the heat dissipation member. The exhaust port is an exhaust port from which the cooling wind is discharged to the outside. The exhaust duct guides the cooling wind to the exhaust port. The exhaust port is disposed on one of the side surfaces, and the antenna element and the exhaust duct are disposed to overlap each other at least partially in the thickness direction.

Abstract: All image capturing apparatus includes an interval shooting section (51) that performs an interval shooting process, a lighten compositing section (54) that performs a lighten compositing process using images captured one by one by the interval shooting process, and a composite-image-in-progress displaying section (55) that, when a first operation is performed, causes a composite image in a first memory area, which is used as a compositing buffer for the lighten compositing process, to be displayed on an LCD monitor without causing the interval shooting process to be stopped.

Abstract: Provided is an ultrasound diagnostic apparatus capable of synchronizing emission of light from a light source device emitting light for generating a photoacoustic wave and reception in an ultrasound probe with high accuracy. The ultrasound diagnostic apparatus includes a sub-controller that has a synchronization signal generation unit and controls an ultrasound probe based on a first synchronization signal generated by the synchronization signal generation unit, an image generation unit that generates an ultrasound image based on a signal detected by the ultrasound probe, and a connector that has a synchronization signal line for transmitting a second synchronization signal generated in the synchronization signal generation unit and outputs the second synchronization signal to the outside through the synchronization signal line. The connector is configured such that a photoacoustic wave light source unit emitting light incident on a puncture needle having a photoacoustic wave generation unit is connectable.

Abstract: A control circuit of an ultrasound diagnostic apparatus having an ultrasound endoscope controls a transmission circuit to generate a transmission signal, which includes a diagnostic driving pulse applied to each of a plurality of ultrasound transducers that generate ultrasound waves for acquiring an ultrasound image, in the case of acquiring the ultrasound image, and controls the transmission circuit to generate a polarization driving pulse, which has a polarization driving voltage different from voltage of the diagnostic driving pulse within the same settable voltage range as the diagnostic driving pulse and has a frequency different from a probe frequency band for acquiring the ultrasound image, in order to perform the polarization processing of the plurality of ultrasound transducers in the case of performing the polarization processing.

Abstract: There are provided an ultrasound diagnostic apparatus and an operation method of an ultrasound diagnostic apparatus capable of performing polarization processing during the execution period of ultrasound diagnosis without affecting the image quality of an ultrasound image. In the ultrasound diagnostic apparatus and the operation method of the ultrasound diagnostic apparatus of the invention, a trigger generation circuit generates a trigger for starting polarization processing. After a trigger is given, during the execution period of ultrasound diagnosis, in a non-diagnosis period which is a period other than a period for acquiring an image of each frame and during which transmission of ultrasound waves and reception of reflected waves for performing ultrasound diagnosis are not performed, within each frame time in which an image of each frame of an ultrasound image is acquired, a control circuit performs polarization processing on a plurality of ultrasound transducers.

Abstract: In an ultrasound diagnostic apparatus and an operation method of the ultrasound diagnostic apparatus of the invention, a control circuit performs polarization processing on a plurality of ultrasound transducers in a non-diagnosis period, during which transmission of ultrasound waves and reception of reflected waves for performing ultrasound diagnosis are not performed, in a case where the cumulative driving time of the plurality of ultrasound transducers for performing the ultrasound diagnosis becomes equal to or longer than a specified time. A transmission circuit generates a first transmission signal having a driving voltage for performing ultrasound diagnosis using a pulse generation circuit in the case of performing the ultrasound diagnosis, and generates a second transmission signal having a polarization voltage for performing polarization processing using the same pulse generation circuit as in the case of generating the first transmission signal in the case of performing the polarization processing.

Abstract: An ultrasound transducer unit including a plurality of ultrasound transducers transmits and receives ultrasound waves to and from an inside of a subject. In a case where a checking operation unit is operated, a controller controls a driving voltage supply unit such that a driving voltage is supplied with all of the plurality of ultrasound transducers as driving target transducers. In a case where the checking operation unit is operated, a depolarization determination unit calculates, for each ultrasound transducer, a reception sensitivity in a case where an ultrasound wave is received by driving all of the plurality of ultrasound transducers as the driving target transducers, and determines whether or not a depolarization determination value calculated from the reception sensitivity of each ultrasound transducer satisfies numerical conditions. If the numerical conditions are satisfied, a polarization voltage supply unit supplies a polarization voltage to each of the plurality of ultrasound transducers.

Abstract: An insert having a photoacoustic wave generation portion, an acoustic wave detection unit that detects photoacoustic waves and reflected acoustic waves, an acoustic image generation unit that generates a B mode acoustic image on the basis of the reflected acoustic waves, a photoacoustic image generation unit that generates a photoacoustic image on the basis of the photoacoustic waves, an image output unit that outputs a display image obtained by synthesizing the B mode acoustic image and the photoacoustic image, and a control unit that controls a detection frequency of the photoacoustic waves used in a case where the photoacoustic image is generated in the photoacoustic image generation unit on the basis of a resolution of the B mode acoustic image forming the display image are included.

Abstract: A photoacoustic image generation apparatus includes: a puncture needle having a photoacoustic wave generation portion; a probe that detects photoacoustic waves generated from the photoacoustic wave generation portion and reflected acoustic waves reflected by transmission of acoustic waves to the subject; a photoacoustic image generation unit that generates a photoacoustic image on the basis of the photoacoustic waves; an ultrasound image generation unit that generates a reflected acoustic image on the basis of the reflected acoustic waves; a tip position detection unit that detects the position of the tip of the puncture needle included in the photoacoustic image; and a measurement unit that measures a distance between a measurement point on the reflected acoustic image and the position of the tip of the puncture needle detected on the photoacoustic image.

Abstract: The electronic device includes a case, an antenna element, a heat source, a heat dissipation member, a heat conduction member, a cooling fan, an exhaust port, and an exhaust duct. The case has a pair of main surfaces and side surfaces. The antenna element is used to perform wireless communication. The heat dissipation member exchanges heat with a cooling wind. The heat conduction member conducts heat of the heat source to the heat dissipation member. The cooling fan generates the cooling wind to be blown to the heat dissipation member. The exhaust port is an exhaust port from which the cooling wind is discharged to the outside. The exhaust duct guides the cooling wind to the exhaust port. The exhaust port is disposed on one of the side surfaces, and the antenna element and the exhaust duct are disposed to overlap each other at least partially in the thickness direction.

Abstract: A photoacoustic image generation apparatus includes: a puncture needle that generates photoacoustic waves; an ultrasound probe that detects the photoacoustic waves and reflected ultrasonic waves reflected by the transmission of ultrasonic waves; a Processor that generates a Doppler signal on the basis of the reflected ultrasonic waves from a sample gate as a Doppler measurement target, that generates a photoacoustic image on the basis of the photoacoustic waves, and that detects the position of a tip portion of the puncture needle on the basis of the photoacoustic image; and a controller that sets the sample gate at a position which is a predetermined distance away from the detected position of the tip portion of the puncture needle and sets the sample gate, following movement of the tip portion of the puncture needle, in a state in which the distance is maintained.

Abstract: Provided is a photoacoustic measurement device including: an ultrasound image generation unit that generates an ultrasound image on the basis of a detection signal of reflected ultrasonic waves generated by the transmission of ultrasonic waves; a puncture needle detection unit that detects a length direction of a puncture needle on the basis of the ultrasound image; and a controller that controls a steering direction of a sample gate which is a Doppler measurement target on the basis of the length direction of the puncture needle such that an angle ? formed between a straight line extending in the length direction of the puncture needle and a straight line extending in the steering direction of the sample gate satisfies 0°??<90°.

Abstract: A photoacoustic image generation apparatus includes: a puncture needle that generates photoacoustic waves; an ultrasound probe that detects the photoacoustic waves and reflected ultrasonic waves reflected by the transmission of ultrasonic waves; a processor that generates a color Doppler signal of a region of interest as a color Doppler measurement target, generates a photoacoustic image on the basis of the photoacoustic waves, and detects the position of a tip portion of the puncture needle on the basis of the photoacoustic image; and a controller that sets the region of interest such that the position of the tip portion of the puncture needle and a center position of the region of interest are separated from each other by a predetermined distance and sets the region of interest, following the movement of the tip portion of the puncture needle, in a state in which the distance is maintained.

Abstract: Provided is a photoacoustic measurement device including: an ultrasound image generation unit that generates an ultrasound image on the basis of a detection signal of reflected ultrasonic waves generated by the transmission of ultrasonic waves; a puncture needle detection unit that detects a length direction of a puncture needle on the basis of the ultrasound image; and a controller that controls a steering direction of a region of interest which is a color Doppler measurement target on the basis of the length direction of the puncture needle such that an angle ? formed between a straight line extending in the length direction of the puncture needle and a straight line extending in the steering direction of the region of interest satisfies 0°??<90°.