An acoustophoretic device is disclosed. The acoustophoretic device includes an acoustic chamber, an ultrasonic transducer, and a reflector. The ultrasonic transducer includes a piezoelectric material driven by a voltage signal to create a multi-dimensional acoustic standing wave in the acoustic chamber emanating from a non-planar face of the piezoelectric material. A method for separating a second fluid or a particulate from a host fluid is also disclosed. The method includes flowing the mixture through an acoustophoretic device. A voltage signal is sent to drive the ultrasonic transducer to create the multi-dimensional acoustic standing wave in the acoustic chamber such that the second fluid or particulate is continuously trapped in the standing wave, and then agglomerates, aggregates, clumps, or coalesces together, and subsequently rises or settles out of the host fluid due to buoyancy or gravity forces, and exits the acoustic chamber.

An acoustophoretic device is disclosed. The acoustophoretic device includes an acoustic chamber, an ultrasonic transducer, and a reflector. The ultrasonic transducer includes a piezoelectric material driven by a voltage signal to create a multi-dimensional acoustic standing wave in the acoustic chamber emanating from a non-planar face of the piezoelectric material. A method for separating a second fluid or a particulate from a host fluid is also disclosed. The method includes flowing the mixture through an acoustophoretic device. A voltage signal is sent to drive the ultrasonic transducer to create the multi-dimensional acoustic standing wave in the acoustic chamber such that the second fluid or particulate is continuously trapped in the standing wave, and then agglomerates, aggregates, clumps, or coalesces together, and subsequently rises or settles out of the host fluid due to buoyancy or gravity forces, and exits the acoustic chamber.

Provided are an acoustic matching sheet containing the following component (B) in the following component (A), a composition for an acoustic matching layer, an acoustic wave probe, an acoustic wave measurement apparatus, and a method for manufacturing an acoustic wave probe. (A) is at least one of a resin or a rubber; and (B) is at least one of a resin particle or a rubber particle having an acoustic velocity lower than an acoustic velocity of the component (A) and having a number average particle diameter of 1.0 μm or less.

An ultrasonic energy gathering device and an ultrasonic repeller using the ultrasonic energy gathering device are provided. The ultrasonic energy gathering device includes an energy gathering part. The energy gathering part has a trapezoidal cross section. The energy gathering part is provided with a gathering port and a diffusing port. The gathering port is smaller than the diffusing port. The ultrasonic energy gathering device further includes an ultrasonic fixing part. The ultrasonic fixing part fixes the ultrasonic energy gathering device with an ultrasonic transmitter of an ultrasonic repeller, so that an ultrasonic wave transmitted from the ultrasonic transmitter enters the gathering port to be gathered and strengthened, and the coverage of the ultrasonic wave gradually expands along the direction away from the diffusing port under the action of the ultrasonic energy gathering device.

In order to obtain a predetermined ultrasonic wave field in a homogeneous internal part of a medium masked by an aberrating barrier, an ultrasonic lens is interposed between the emitting ultrasonic probe and the aberrating barrier. The ultrasonic lens is calculated by using a model of the medium comprising a mapping of ultrasonic wave propagation properties obtained from actual imaging of the medium such that when the ultrasound probe sends a predetermined ultrasonic wave, said predetermined wave generates the predetermined objective ultrasonic wave field in the medium.

In order to obtain a predetermined ultrasonic wave field in a homogeneous internal part of a medium masked by an aberrating barrier, an ultrasonic lens is interposed between the emitting ultrasonic probe and the aberrating barrier. The ultrasonic lens is calculated by using a model of the medium comprising a mapping of ultrasonic wave propagation properties obtained from actual imaging of the medium such that when the ultrasound probe sends a predetermined ultrasonic wave, said predetermined wave generates the predetermined objective ultrasonic wave field in the medium.

The present disclosure provides an acoustic wave transducer and a driving method thereof, The acoustic wave transducer includes cell groups, at least part of which each include acoustic wave transducer cells configured to perform a same operation, each acoustic wave transducer cell being configured to perform at least one of: converting an acoustic wave signal into an electrical signal and converting an electrical signal into an acoustic wave signal; and array element signal terminals, each of which is coupled to at least two adjacent cell groups, and is coupled to different cell groups through different switch devices, each switch device being configured to control connection and disconnection between the array element signal terminal and the cell group coupled to the switch device, and the cell groups coupled to an array element signal terminal and the cell groups coupled to an adjacent array element signal terminal are partly the same.

The present disclosure provides an acoustic wave transducer and a driving method thereof, The acoustic wave transducer includes cell groups, at least part of which each include acoustic wave transducer cells configured to perform a same operation, each acoustic wave transducer cell being configured to perform at least one of: converting an acoustic wave signal into an electrical signal and converting an electrical signal into an acoustic wave signal; and array element signal terminals, each of which is coupled to at least two adjacent cell groups, and is coupled to different cell groups through different switch devices, each switch device being configured to control connection and disconnection between the array element signal terminal and the cell group coupled to the switch device, and the cell groups coupled to an array element signal terminal and the cell groups coupled to an adjacent array element signal terminal are partly the same.

The present invention relates to a portable HIFU skin care device. The portable HIFU skin care device (1) of the present invention is divided into three portions. Firstly, a main body (100) has a rechargeable battery embedded therein, a power button and a step button installed therein for adjusting the intensity of an ultrasonic wave, and a display for displaying the operation states of the device, including the number of shots. In addition, a cartridge (200) is used by being mounted on a head part of the main body (100) and has a HIFU transducer embedded therein. A cradle (300) has a charging part which is installed therein, is capable of charging by being connected with the cartridge (200) and an adaptor, accommodates the main body (100) through a placement groove while the cartridge (200) is mounted to the main body (100), includes a UV lamp for disinfecting the head part of the cartridge (200) when accommodating the main body (100), and charges an internal battery of the main body (100). In an operation state, while the HIFU transducer is linearly moved for each one shot by a piezoelectric motor, a plurality of ultrasonic waves are emitted so as to form a plurality of ultrasonic focal point regions on an object, thereby achieving a skin care effect. In the present invention, the piezoelectric motor (216) is particularly installed inside the cartridge (200).

Disclosed is an ultrasonic wave generation device for hearing recovery treatment, including an ultrasonic wave generation part. The ultrasonic wave generation part comprises a reference time-delay determination module, an emission sequence parameter determination module and an ultrasonic transducer module. The ultrasonic transducer module is used for emitting actual ultrasonic waves, and the efficiency and precision are improved by focusing by means of a plurality of array elements.