The present disclosure relates to an ultrasound transducer and a control method thereof. More particularly, the present disclosure is related to an ultrasound transducer for facilitating waste clearance of the brain lymphatic system and a control method thereof. A transducer according to the present disclosure includes: an oscillator including a plurality of Piezoelectric materials, and a polymer encompassing the plurality of Piezoelectric materials, and irradiating an ultrasound using at least one of the plurality of Piezoelectric materials and the polymer; a lens having a first space where at least a part of the oscillator is inserted, and focuses the applied ultrasound; and a housing supporting connection between the oscillator and the lens, wherein a height of the oscillator is longer than a height of the first space, a first height difference between the height of the oscillator and the height of the first space is inverse proportion to overall height of the lens, and a width of the oscillator is smaller than a width of the first space.

Disclosed embodiments relate to apparatuses and methods for wound treatment with ultrasound. In certain embodiments, therapeutic ultrasound wound treatment apparatus includes a wound dressing configured to be positioned over a wound to provide a substantially fluid impermeable seal over the wound and a transducer to deliver therapeutic ultrasound to tissue. The therapeutic ultrasound wound treatment apparatus may further include a wound contact layer configured to be positioned in contact with the wound, a transmission layer positioned above the wound contact layer, an absorbent layer positioned above the transmission layer and configured to absorb wound fluid, and a backing layer positioned above the absorbent layer and including an orifice. Also disclosed are multiple parameters for the therapeutic ultrasound signal.

Embodiments of the present disclosure relate to techniques for inducing physiological perturbations in a subject via neuromodulation, e.g., peripheral neuromodulation of a region of interest of an organ. The nature and degree of the perturbations may be related to the subject's clinical condition. Accordingly, an assessment of one or more characteristics of the perturbations may be used to determine a clinical condition of the subject.

A medical device includes a treatment module configured to apply a treatment to a patient. The medical device includes an interface configured to operatively connect to a removable storage device storing authorization data that identifies a level of treatment authorization. The medical device includes a processing device configured to perform operations in response to receiving user input indicating a treatment should be initiated. The operations include determining whether the removable storage device is valid for use with the medical device. If the removable storage device is determined to be valid, the authorization data is accessed. The processing device determines whether the treatment is authorized based on the accessed authorization data. If the treatment is determined to be authorized, the treatment module is controlled to apply the treatment. If the treatment is determined to not be authorized, the treatment module is controlled such that the treatment is not applied.

An ultrasonic apparatus (100) for creating a holographic ultrasound field (1) comprises an ultrasound source device (10) being adapted for creating an ultrasound wave, and a transmission hologram device (20) having a transmission hologram (21) and an exposed acoustic emitter surface (22), said transmission hologram device (20) being acoustically coupled with the ultrasound source device (10) and being arranged for transmitting the ultrasound wave through the acoustic emitter surface (22) and creating the holographic ultrasound field in a surrounding space, wherein the acoustic emitter surface (22) is a smooth surface which do not influence the field distribution of the ultrasound wave. Furthermore, a method of creating a holographic ultrasound field in an object (3), wherein the ultrasonic apparatus (100) is used, and applications of the ultrasonic apparatus (100) are described.

Disclosed is an ultrasound vortex energy injection device configured in such a way as to disperse ultrasound waves without focusing the ultrasound waves with respect to an area coming in contact with a human body, and at the same time, apply a vortex-type stimulus in a circumferential direction of an area getting in contact with the human body with respect to a plurality of piezoelectric elements arranged to be spaced apart from one another in a circumferential direction (clockwise or counterclockwise) of an area opposed to the human body where ultrasound waves are transmitted.

A head-wearable device is configured to hold at least one ultrasound transducer such that it is properly positioned for brain stimulation. Such a head-wearable device can help to ensure that the transducer makes sufficient contact with the user's head to allow for efficient ultrasound coupling. Each device may also ensure that the ultrasound transducer maintains the same orientation and position relative to the head across successive donning and doffing of the device.

Disclosed are methods of obtaining zero vergence ultrasound waves for providing sonodynamic therapy with ultrasound waves that do not converge and do not diverge. The method includes coupling a sonodynamic therapy device with an array of flat piezoelectric transducers to a skin surface. A controller is configured to generate an electrical drive signal at a frequency, modulate the drive signal, and drive the transducer with the modulated drive signal at the frequency to produce a zero vergence ultrasound wave to produce an average acoustic intensity sufficient to activate a sonosensitizer in a treatment region without damaging healthy cells in the treatment region.

An apparatus is disclosed for thermal therapy in a male prostate patient. The apparatus includes a long tubular element that is to be inserted into a patient's urethra so that a first tip end of it reaches up into the patient's diseased prostate. The elongated portion includes a narrow cylindrical tube within which an ultrasonic array is disposed along the long axis of the cylinder. Fluid is pumped into and out of a treatment zone of said patient as needed to control a temperature of a region in said treatment zone. A motorized driver is used to controllably rotate said elongated portion and the ultrasound array therein about the long axis of the apparatus so as to deliver acoustic energy to said diseased tissue. Various control and monitoring components may be used in conjunction with the present apparatus to design, control, and terminate the therapy.

Apparatus and methods are described that include ultrasound imaging devices, which may operate in a transmissive ultrasound imaging modality, and which may be used to detect properties of interest of a subject such as index of refraction, density and/or speed of sound. Devices suitable for performing high intensity focused ultrasound (HIFU), as well as HIFU and ultrasound imaging, are also described.