Abstract: An ultrasound probe includes: a vibrator having a first surface which is located on a side on which the vibrator transmits and receives an ultrasound wave and a second surface opposite to the first surface; a support portion that supports the second surface; an acoustic lens that is disposed on a side opposite to a support portion side with respect to the vibrator; an acoustic matching portion that is disposed between the vibrator and the acoustic lens; and a connection portion that connects the support portion and at least a third acoustic matching layer of the acoustic matching portion to each other, in which the support portion, the connection portion, and the third acoustic matching layer have the same thermal conductivity and the same acoustic impedance.

Abstract: An ultrasound probe includes: vibrators arranged in a left-right direction; a support portion that supports a second surface opposite to a first surface located on a side on which the vibrator transmits and receives an ultrasound wave; an acoustic lens disposed on a side opposite to a support portion side with respect to the vibrator; an acoustic matching portion disposed between the vibrator and the acoustic lens; and a connection portion that connects the support portion and at least a partial region of one or both of a first end surface and a second end surface to each other, the first end surface and the second end surface being defined by both end surfaces of the acoustic matching portion in a front-rear direction intersecting the left-right direction and an up-down direction. The support portion and the connection portion each have a thermal conductivity higher than that of the acoustic lens.

Abstract: An ultrasound probe includes: a plurality of vibrators that are arranged in a left-right direction; a support portion that supports a lower surface of the vibrator; an acoustic matching portion; and an acoustic lens, in which the support portion includes a dematching layer and a backing layer, and the dematching layer is in contact with only one of both end surfaces of the vibrator in a front-rear direction.

Abstract: Provided is an ultrasound transducer 1 in which a plurality of piezoelectric elements (3) are arranged on a backing material along an arrangement direction, the ultrasound transducer (1) including a plurality of acoustic matching layers (4, 5, 6, 7) laminated on each piezoelectric element (3), in which at least one acoustic matching layer (4) among the plurality of acoustic matching layers (4, 5, 6, 7) consists of at least one acoustic matching piece (4A, 4B) having a width narrower than a width of the piezoelectric element (3) in the arrangement direction.

Abstract: An ultrasound probe for a puncture needle and an ultrasound diagnostic device using the same are disclosed. The ultrasound probe for the puncture needle transmits ultrasonic waves to a subject from a transducer array which is arranged so as to be tilted at a predetermined array angle of inclination with respect to a subject contact surface, in a direction in which an angle of an ultrasonic wave transmission/reception surface with respect to a puncturing direction of the puncture needle punctured from a puncture position toward the front of the subject contact surface decreases, receives ultrasonic echoes, forms sound ray signals which are tilted to a side of the puncture needle, and generates a B mode image of a deep region of the subject from the sound ray signals.

Abstract: Provided is a composition for an acoustic wave probe including a polysiloxane mixture containing at least polysiloxane having a vinyl group and a phenyl group, polysiloxane having two or more Si—H groups in a molecular chain, and zinc oxide, a silicone resin for an acoustic wave probe, the acoustic wave probe, an acoustic wave measurement apparatus, an ultrasound diagnostic apparatus, an ultrasound probe, a photoacoustic wave measurement apparatus, and an ultrasound endoscope.

Abstract: An acoustic lens (7) for an ultrasound transducer that is disposed in a front end portion of an ultrasound transducer (1) has a concave front surface (C1) and is formed from a base material (B) in which a plurality of fine particles (G) are dispersed. As a degree of dispersion of the fine particles (G) is higher from a central portion toward both end portions in an elevation direction, acoustic velocity is lower from the central portion toward both end portions in the elevation direction.

Abstract: A photoacoustic measurement probe and a probe unit capable of preventing generation of artifacts in a photoacoustic measurement apparatus are obtained. In a photoacoustic measurement probe having a light emitting unit that emits measurement light toward a subject, an acoustic wave detection element that detects an acoustic wave emitted from a portion of the subject that has received the measurement light, and a housing which has a surface facing the subject at the time of use and in which the light emitting unit and the acoustic wave detection element are housed, at least one slit that is opened to the housing surface and that extends from the housing surface toward the inside of the housing is provided between the light emitting unit and the acoustic wave detection element.

Abstract: Provided are an ultrasound probe including high-sensitive piezoelectric elements and a method of manufacturing an ultrasound probe. The ultrasound probe includes a plurality of piezoelectric elements on a backing material arranged in an array along an arrangement direction. Each of the plurality of piezoelectric elements includes a laminate in which a first conductive part, a piezoelectric body part, and a second conductive part are laminated on a surface of the backing material in order. A plurality of acoustic matching part respectively arranged on the second conductive parts of the plurality of piezoelectric elements is provided. A plurality of third conductive parts acquired by respectively joining a part of the plurality of acoustic matching parts in an elevation direction to the second conductive parts of the plurality of piezoelectric elements is provided. A fourth conductive part that electrically connects the plurality of third conductive parts to each other is provided.

Abstract: In a photoacoustic measurement probe including an acoustic wave detector and an amplifier for amplifying a detection signal of a photoacoustic wave and a probe unit and a photoacoustic measurement apparatus having such a probe, heat is efficiently dissipated from the probe. In a probe having an acoustic wave detector and an amplifier, there are provided a first heat conductive member that is in contact with a part of a side plate of a housing and the amplifier to transfer heat generated by the amplifier to the side plate and a second heat conductive member that is in contact with a part different from the part of the side plate and the acoustic wave detector to transfer heat generated by the acoustic wave detector to the side plate.

Abstract: A photoacoustic measurement device reducing artifacts caused by photoacoustic waves generated at a surface portion of a subject on which measurement light is incident, and a signal processing method thereof are obtained. A photoacoustic measurement device includes region discrimination unit that discriminates an artifact generation region and an artifact non-generation region in a photoacoustic image on the basis of a positional relationship between a light emitting portion and an acoustic wave detection portion, and filter unit that performs a first filtering process on a first photoacoustic wave detection signal corresponding to a photoacoustic image of the artifact non-generation region and performs a second filtering process on a second photoacoustic wave detection signal corresponding to a photoacoustic image of the artifact generation region.

Abstract: Provided are a resin material for an acoustic wave probe which contains a polymer formed of at least one of a structural unit (a) having a specific polysiloxane bond or a structural unit (b) having a specific partial structure, in which the structural unit (b) having the specific partial structure is an acryloyloxy structural unit (b1), an acrylamide structural unit (b2), or a styrene structural unit (b3); an acoustic lens; an acoustic wave probe; an acoustic wave measurement apparatus; an ultrasound diagnostic apparatus; a photoacoustic wave measurement apparatus; and an ultrasound endoscope.

Abstract: An acoustic wave detector detects photoacoustic waves generated by absorbing measurement light emitted toward a subject, and reflected acoustic waves with respect to acoustic waves transmitted toward the subject. A preamplifier amplifies a detection signal output by the acoustic wave detector. A bypass unit is intended to output the detection signal without passing through the preamplifier. Controller causes the preamplifier to enter an operating state and selects a first path along which the detection signal is amplified by the preamplifier and then is input to the reception circuit as a signal path in a case where the photoacoustic waves are detected. The controller stops an amplification operation in the preamplifier and selects a second path along which the detection signal is input to the reception circuit via a bypass unit as the signal path in a case where reflected acoustic waves are detected.

Abstract: Provided is a composition for an acoustic wave probe including a polysiloxane mixture containing polysiloxane and silica particles of which an average primary particle diameter exceeds 16 nm and less than 100 nm and which are subjected to surface treatment, and organic peroxide, and a silicone resin for an acoustic wave probe, the acoustic wave probe, an ultrasound probe, an acoustic wave measurement apparatus, an ultrasound diagnostic apparatus, a photoacoustic wave measurement apparatus, and an ultrasound endoscope using the composition for an acoustic wave probe.

Abstract: Provided are a resin composition for an acoustic wave probe including, a polymer which has a structural unit having a siloxane bond and a structural unit having a urea bond, an acoustic lens using the same, the acoustic wave probe, acoustic wave measurement apparatus, ultrasound diagnostic apparatus, photoacoustic wave measurement apparatus, and ultrasound endoscope.

Abstract: Provided is a composition for an acoustic wave probe including a polysiloxane mixture containing polysiloxane having a vinyl group, polysiloxane having two or more Si—H groups in a molecular chain, and silica particles of which an average primary particle diameter exceeds 16 nm and less than 100 nm and which are subjected to surface treatment, a silicone resin for an acoustic wave probe, the acoustic wave probe, an acoustic wave measurement apparatus, an ultrasound diagnostic apparatus, an ultrasound probe, a photoacoustic wave measurement apparatus, and an ultrasound endoscope.

Abstract: Provided are an ultrasound probe including high-sensitive piezoelectric elements and a method of manufacturing an ultrasound probe. The ultrasound probe includes a plurality of piezoelectric elements on a backing material arranged in an array along an arrangement direction. Each of the plurality of piezoelectric elements includes a laminate in which a first conductive part, a piezoelectric body part, and a second conductive part are laminated on a surface of the backing material in order. A plurality of acoustic matching part respectively arranged on the second conductive parts of the plurality of piezoelectric elements is provided. A plurality of third conductive parts acquired by respectively joining a part of the plurality of acoustic matching parts in an elevation direction to the second conductive parts of the plurality of piezoelectric elements is provided. A fourth conductive part that electrically connects the plurality of third conductive parts to each other is provided.

Abstract: Provided are a resin material for an acoustic wave probe which contains a polymer formed of at least one of a structural unit (a) having a specific polysiloxane bond or a structural unit (b) having a specific partial structure, in which the structural unit (b) having the specific partial structure is an acryloyloxy structural unit (b1), an acrylamide structural unit (b2), or a styrene structural unit (b3); an acoustic lens; an acoustic wave probe; an acoustic wave measurement apparatus; an ultrasound diagnostic apparatus; a photoacoustic wave measurement apparatus; and an ultrasound endoscope.

Abstract: A composition for an acoustic-wave probe, containing a polysiloxane mixture, in which the polysiloxane mixture contains: a polysiloxane having a vinyl group; a polysiloxane having at least two Si—H groups in the molecular chain thereof; and silica particles having an average primary particle size of less than 12 nm.

Abstract: An ultrasound probe includes a plurality of piezoelectric elements arranged in an array, a plurality of drawn-out signal lines drawn out from the plurality of piezoelectric elements, and a print board on which a plurality of connection conductors are formed for connecting between a plurality of communication cables connected to an ultrasound diagnostic apparatus body and the plurality of drawn-out signal lines, respectively, connection-conductor insulation layers being formed on the printed board so as to cover respective outer peripheries of the plurality of connection conductors, and a connection-conductor ground conductive layer being formed on the printed board so as to cover individual outer peripheries of the connection-conductor insulation layers, whereby the plurality of connection conductors are shielded from one another.