An intraluminal ultrasound imaging device includes a flexible elongate member configured to be positioned within a body lumen of a patient. The flexible elongate member includes a proximal portion and a distal portion. The device also includes an ultrasound imaging assembly disposed at the distal portion of the flexible elongate member. The ultrasound imaging assembly is configured to obtain imaging data of the body lumen. The ultrasound imaging assembly includes a transducer array including a substrate, a silicon oxide layer disposed over the substrate, and a plurality of rows of micromachined ultrasound transducer elements disposed on the silicon oxide layer. Two of the plurality of rows of micromachined ultrasound transducer elements are spaced apart by a trench formed by etching through a screen formed in the silicon oxide layer. Associated devices, systems, and methods are also provided.

Systems and methods for non-invasive fat reduction can include targeting a region of interest below a surface of skin, which contains fat and delivering ultrasound energy to the region of interest. The ultrasound energy generates a thermal lesion with said ultrasound energy on a fat cell. The lesion can create an opening in the surface of the fat cell, which allows the draining of a fluid out of the fat cell and through the opening. In addition, by applying ultrasound energy to fat cells to increase the temperature to between 43 degrees and 49 degrees, cell apoptosis can be realized, thereby resulting in reduction of fat.

Apparatus for controlling algae and bio-organisms in bodies of fluids, such as water. The algae control system includes a power unit and a transducer unit that includes a sonic head that radiates in multiple directions. The power unit connects to various power sources, including a mains supply connection, a solar panel array, and/or a battery. The power unit is electrically connected to the transducer unit. The sonic head includes a driver and a transducer subassembly. The driver excites the transducer assembly to emit ultrasonic waves at various frequencies with varying durations of on/off periods. Emissions at a high density of frequencies are enabled by the transducers. The frequencies include the critical structural resonant frequency for each microorganism to be controlled. The power unit and driver each include a processor in communication with each other. The processors store and execute a program for a selected application configuration.

In one general aspect, various embodiments are directed to an ultrasonic surgical instrument that comprises a transducer configured to produce vibrations along a longitudinal axis at a predetermined frequency. In various embodiments, an ultrasonic blade extends along the longitudinal axis and is coupled to the transducer. In various embodiments, the ultrasonic blade includes a body having a proximal end and a distal end, wherein the distal end is movable relative to the longitudinal axis by the vibrations produced by the transducer.

A backing member includes: a resin layer which contains a filler; and a plurality of leads each of which is embedded in the resin layer to penetrate through the resin layer from an upper surface of the resin layer to a lower surface of the resin layer. Each of the leads includes a wiring portion, and a terminal portion connected to one end of the wiring portion. A width dimension and a depth dimension of the wiring portion are smaller than a width dimension and a depth dimension of the terminal portion, and an interval between adjacent ones of the wiring portions of the leads is wider than an average particle size of the filler.

In one general aspect, various embodiments are directed to an ultrasonic surgical instrument that comprises a transducer configured to produce vibrations along a longitudinal axis at a predetermined frequency. In various embodiments, an ultrasonic blade extends along the longitudinal axis and is coupled to the transducer. In various embodiments, the ultrasonic blade includes a body having a proximal end and a distal end, wherein the distal end is movable relative to the longitudinal axis by the vibrations produced by the transducer.

In one general aspect, various embodiments are directed to an ultrasonic surgical instrument that comprises a transducer configured to produce vibrations along a longitudinal axis at a predetermined frequency. In various embodiments, an ultrasonic blade extends along the longitudinal axis and is coupled to the transducer. In various embodiments, the ultrasonic blade includes a body having a proximal end and a distal end, wherein the distal end is movable relative to the longitudinal axis by the vibrations produced by the transducer.

An ultrasound transducer assembly includes a housing; a wedge-shaped acoustic modal convertor (AMC) in the housing with a first surface exposed by an opening in the housing, and a second surface that meets the first surface at a tip located in the housing, and extends from the tip at an angle into the housing, wherein the second surface has a recessed portion formed therein, wherein the second surface of the AMC is oriented at a specific oblique angle to the first surface of the AMC; and a piezoelectric ultrasound transducer disposed in the recessed portion of the second surface of the AMC, wherein the piezoelectric ultrasound transducer is connected to an electrically tuned circuit that resonates at a specific frequency and has a finite bandwidth.

Aspects of the technology described herein relate to ultrasound device circuitry as may form part of a single substrate ultrasound device having integrated ultrasonic transducers. The ultrasound device circuitry may facilitate the generation of ultrasound waveforms in a manner that is power- and data-efficient.

Improved systems and methods for diagnosing an injury of a patient. The system and methods provide for more accurate scans of the injury thereby enabling a combat medic, a medical technician, or even untrained individuals to quickly diagnose the injury. By providing more accurate information, the systems and methods provide the technician with additional information regarding treatment options, such as whether to transport the patient or treat the patient in place, potential for aspiration, and other information about dangerous fluid build-up such as size, depth, and types of surrounding tissues, thereby increasing survivability of the patient. The systems and methods can also provide a diagnosis of the injury as well as suggestions on actions to take to treat the patient.