An ultrasonic measurement device includes: a probe configured to be attached to a body surface of a subject while being in contact with the body surface, transmit ultrasonic waves into a body of the subject, and receive reflected waves of ultrasonic waves; and a controller configured to determine a contact state of the probe with the body surface. The controller determines the contact state of the probe with the body surface by comparing at least two received signals acquired through transmission and reception of ultrasonic waves by probe at different times.

The embodiments herein provide a system for calibration-free cuff-less evaluation of blood pressure. The system includes an ultrasound-based arterial compliance probes and a controller unit connected to the said probe. The ultrasound transducers are configured to measure the change in arterial dimensions, pulse wave velocity, and other character traits of an arterial segment over continuous cardiac cycle, which is then used to evaluate blood pressure parameters without any calibration procedure using dedicated mathematical models. The pressure sensor/force sensor/bio-potential transducers/accelerometric sensors are configured to measure a pressure acting on a skin surface at a measurement site, an internal arterial transmural pressure level, an applied pressure or a hold-down pressure on the skin surface or an arterial site, biopotential and/or plethysmograph signal, arterial vibrations acting on the measurement site as a function of the arterial pressure and the mechanical characteristics and/or a function of the applied/hold-down pressure and/or function of external factors.

The embodiments herein provide a system for calibration-free cuff-less evaluation of blood pressure. The system includes an ultrasound-based arterial compliance probes and a controller unit connected to the said probe. The ultrasound transducers are configured to measure the change in arterial dimensions, pulse wave velocity, and other character traits of an arterial segment over continuous cardiac cycle, which is then used to evaluate blood pressure parameters without any calibration procedure using dedicated mathematical models. The pressure sensor/force sensor/bio-potential transducers/accelerometric sensors are configured to measure a pressure acting on a skin surface at a measurement site, an internal arterial transmural pressure level, an applied pressure or a hold-down pressure on the skin surface or an arterial site, biopotential and/or plethysmograph signal, arterial vibrations acting on the measurement site as a function of the arterial pressure and the mechanical characteristics and/or a function of the applied/hold-down pressure and/or function of external factors.

A diaphragm measurement device (1) includes at least one electronic processor (13) programmed to perform a diaphragm measurement method (100) including receiving ultrasound imaging data of a dimension of a diaphragm of a patient during inspiration and expiration while the patient undergoes mechanical ventilation therapy with a mechanical ventilator (2); receiving respiratory data of the patient during inspiration and expiration while the patient undergoes the mechanical ventilation therapy; calculating a diaphragm thickness metric based on the received ultrasound imaging data of the diaphragm of the patient and the received respiratory data; and displaying, on a display device (14), a representation (30) of the calculated diaphragm thickness metric.

Disclosed is an ultrasound system having a monitoring pad for application to a patient, an ultrasound probe that connects to the monitoring pad and has a plurality of ultrasound transducers, and an ultrasound beamforming device configured to control the ultrasound transducers to focus an ultrasound beam into the patient and to read resulting reflections of the ultrasound beam. The monitoring pad has an ultrasound gel pad and a support structure that holds the ultrasound gel pad. In accordance with an embodiment of the disclosure, the support structure is geometrically configured to receive the ultrasound probe and to hold it in a fixed arrangement against the ultrasound gel pad, such that the ultrasound gel pad is sandwiched between the patient and the ultrasound transducers. In some implementations, the monitoring pad has electrocardiogram electrodes and/or other sensor(s) unrelated to ultrasound, and the ultrasound beamforming device receives readings from the same.

A processing device is coupled to a single ultrasound device having a single array of capacitive micromachined ultrasound transducers (CMUTs). The processing device generates a graphical user interface (GUI) having user selectable GUI menu options corresponding to respective ultrasound operating modes for the single ultrasound device having the single ultrasound transducer array. The user-selectable GUI menu options include GUI menu options labeled as representing an ultrasound operating mode for musculoskeletal imaging, breast imaging, carotid imaging, vascular imaging, and abdominal imaging, respectively. The processing device further receives, via the GUI, user input indicating selection of one of the ultrasound operating modes, and in response to receiving the user input, provides an indication to the single ultrasound device having the single array of CMUTs to operate in the selected ultrasound operating mode.

Aspects of the technology described herein relate to control circuitry configured to turn on and off the ADC driver. In some embodiments, the control circuitry is configured to turn on and off the ADC driver in synchronization with sampling activity of an ADC, in particular based on when an ADC is sampling. The control circuitry may be configured to turn on the ADC driver during the hold phase of the ADC a time period before the track phase and to turn off the ADC driver during the hold phase a time period after the track phase. In some embodiments, the control circuitry is configured to control a duty cycle of the ADC driver turning on and off. In some embodiments, the control circuitry is configured to control a ratio between an off current and an on current in the ADC driver.

A wearable rapid pulse confirmation (RPC) device is designed to be worn by a living subject, and includes a Doppler array comprising at least one piezoelectric ultrasonic transducer, configured to detect a change in blood velocity in a blood vessel; a screen; a loud speaker; and a band or adhesive configured to hold the wearable RPC device in proximity to a body surface of the living subject. The Doppler array is configured to detect a change in blood velocity, pulse rate, pulse strength, or a combination thereof in a blood vessel; and to provide feedback through the screen and the loudspeaker. The Doppler array may include multiple types of piezoelectric ultrasonic transducers, including low frequency piezoelectric ultrasonic transducers having a working frequency ranging from 2 MHz to <6 MHz; medium frequency piezoelectric ultrasonic transducers having a working frequency of 6 MHz to 10 MHz; and high frequency piezoelectric ultrasonic transducers having a working frequency of 10 MHz to 18 MHz.

Embodiments of the present disclosure relate to techniques for accurate positioning of an energy application device for neuromodulation treatment protocols. In one embodiment, a neuromodulation positioning patch is applied to a patient's skin. The energy application device is configured to couple to a frame of the neuromodulation positioning patch to position a transducer of the energy application device within an opening at a treatment position within the opening. In one embodiment, the frame is also configured to couple to a removable dock for an imaging probe that, when coupled to the removable dock and, in turn, the frame of the neuromodulation positioning patch, is configured to acquire image data through the opening to identify or verify a treatment position.

An ultrasonic probe is attached to a target to perform ultrasonic measurement. The ultrasonic probe includes: a first substrate including an ultrasonic element array in which a plurality of ultrasonic elements performing at least one of transmission of ultrasonic waves and reception of ultrasonic waves are arranged in an array, the ultrasonic element array being arranged on a first surface of the first substrate; a second substrate facing a second surface opposite to the first surface of the first substrate; and a housing that houses the first substrate and the second substrate therein and is provided with an opening through which the ultrasonic waves pass at a position corresponding to the ultrasonic element array. The second substrate includes a communication unit coupled to the plurality of ultrasonic elements and capable of wirelessly communicating with another terminal device. A weight of the ultrasonic probe is 150 g or less.