A wearable bladder monitoring device is disclosed and includes a fastener for securing the device to a subject's body; a phased array of ultrasound transducers having configurable output frequencies; a configurable phased array controller adapted to control the phased array to direct ultrasound beams into the subject's body under a plurality of discrete beam angles and to collect echo signals of the ultrasound beams, wherein the phased array controller is adapted to direct a set of ultrasound beams into the subject's body for at least a subset of the discrete beam angles in response to a configuration instruction defining the respective output frequencies of the ultrasound beams in the set; and a device transceiver for communicating data pertaining to the echo signals to a remote device to facilitate the remote processing of the data and to receive the configuration instruction from the remote device.

Disclosed is a patient monitor control unit (10) comprising a processor arrangement (11, 13) adapted to receive a series of ultrasound measurements received from a sensor (30) comprising at least one configurable ultrasound transducer; process said series of ultrasound measurements to obtain haemodynamic data of a patient coupled to the sensor; control a patient monitor (20) to display the obtained haemodynamic data; evaluate the obtained haemodynamic data to detect a variance in said data; and generate a reconfiguration signal for the at least one configurable ultrasound transducer, wherein the timing of said generation is a function of said evaluation. Also disclosed are a patient monitoring system, a method of operating a patient monitor control unit and a computer program product for implementing such a method.

An ultrasonic coupling device. The ultrasonic coupling device includes a foam having an aperture; a hydrogel wherein the hydrogel has a water content of at least 10 wt %, wherein at least part of the hydrogel locates in the aperture of the foam; and a near field communication device.

An ultrasonic coupling device. The ultrasonic coupling device includes a hydrogel wherein the hydrogel has a water content of at least 10 wt %; and a near field communication device.

According to an aspect of the invention, there is provided an ambulatory system for determining a cardiac parameter at a fixed location within the cardiovascular system of a subject. The system comprises a wearable sensor including an ultrasound transducer. The wearable sensor can contact the skin of the subject and be positioned proximate to the fixed location. The system comprises a data collection module that is in communication with the ultrasound transducer. The ultrasound transducer is configured to detect a pressure wave passing through the fixed location. The data collection module is configured to collect data relating to the pressure wave passing through the fixed location, analyse the pressure wave, and determine at least one cardiac parameter based on the analysis.

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 stand-alone continuous cardiac Doppler or acoustic pulse monitoring patch provides visual and auditory signals that a pulse or heartbeat is detected or not detected in a human subject. The invention is a small patch with a peel-away adhesive surface that is applied to the skin of the subject, preferably near a large artery. For the Doppler monitor, the patch includes a pad formed of a conductive medium to enhance transmission and reception of ultrasonic waves. For the acoustic monitor, the pad has a sound focusing portion that permits entry of sounds and focuses the sounds toward a microphone, and the pad also has a sound insulating portion surround the sound focusing portion. The patch includes an integral power source. The Doppler patch has transmitters and receivers to send and detect reflected ultrasonic waves and a transducer to convert the reflected waves into an electrical signal. The acoustic patch has a microphone to detect the sound of a heartbeat and a transducer to convert the sound energy into an electrical signal. A processor analyzes the Doppler wave signals or the acoustic signals. A light indicates the presence and strength of a pulse detected from the Doppler wave signals or a heartbeat detected by the microphone. A speaker and a vibrator may also to indicate the presence and strength of a pulse or a heartbeat. The Doppler effect of waves reflecting from blood pumped from a heart is used to detect a pulse in the subject. The presence of a pulse or heartbeat is analyzed by the processor to determine the frequency and strength of blood flow or beating of the heart. The processor causes the light, speaker or vibrator to blink, beep or vibrate at a rate to indicate the frequency of rhythmic blood flow or heartbeat.

A system and a method of non-invasive continuous echocardiographic monitoring is provided with an ultrasound transducer and a bedside monitor. The beside monitor includes a monitor central processing unit (CPU). First, the ultrasound transducer is attached onto a specific skin portion of a patient. The specific skin portion is positioned adjacent to a patient's heart. Next, continuous echocardiographic data is sensed with the ultrasound transducer. After relaying the continuous echocardiographic data from the ultrasound transducer to the monitor CPU, the monitor CPU generates a real-time ultrasound image of the heart from the continuous echocardiographic data. Finally, the real-time ultrasound image is outputted with the bedside monitor. If the bedside monitor has a main screen, then the real-time ultrasound image is displayed through a picture-in-picture format with the main screen. Otherwise, if the beside monitor has an ancillary screen, then the real-time ultrasound image is exclusively displayed with the ancillary screen.

A method for locating electrical activity in a patient comprising the steps of (1) obtaining a sensing patch having a plurality of fiducial markers compatible with an imaging system and a plurality of sensors adapted to collect electrical signals found on a surface of the patient's skin, (2) securing the sensing patch to the patient with a position relative to a heart of the patient, (3) operating the imaging system to obtain an image of the heart of the patient and at least one of the plurality of fiducial markers, and (4) creating an electric field map corresponding the heart of the patient.

The disclosed devices, systems and methods measure non-invasive blood pressure in a patient. Energy emissions, such as ultrasound or light, are emitted into tissues of the patient. The emitted energy reflects from various tissues, such as flowing blood and vessels, and can be detected, or received, to generate a reflected energy signal or data. The reflected energy can be processed, such as by using a constitutive equation, to calculate the blood pressure.