A wearable non-invasive lung fluid monitoring system has at least one processor in communication with a wearable sensor configured to be positioned on a chest of a patient. The wearable sensor includes at least one transducer configured to generate ultrasonic signal(s) probing internal space within the chest of the patient. The at least one processor is configured to determine at least one measurement estimate of fluid within the chest of the patient using acoustic impedance of the ultrasonic signal(s) and reflected wave(s) of the ultrasonic signal(s).

An exemplary ultrasound (US) apparatus, can include, for example, a flexible substrate, a plurality of ultrasound transducers coupled to the flexible substrate, and an integrated circuit(s) (IC(s)) mounted on the substrate to drive and control the transducer array, where the IC(s) can be configured to control an excitation phase of the ultrasound transducers based at least in part on a shape of the flexible substrate. The ultrasound transducers can be an array of bulk piezoelectric transducers. The substrate can be a flexible printed circuit board. The IC(s) can be configured to separately control (i) a transmission of ultrasound energy from each of the transducers, (ii) a magnitude, or a (iii) phase, where the IC(s) can be configured to use the phase to focus the transmitted energy compensating for a curvature of the ultrasound apparatus.

A window dressing includes a primary layer having a window for viewing a catheter insertion site. The primary layer includes an adhesive layer on a lower, skin-contacting face of the primary layer. A transparent layer covers the window and adheres to the upper surface of the primary layer. An ultrasonic transmission layer is positioned below the primary layer, where the transmission layer comprises a layer of hydrogel. A support structure has a stiffness that is greater than the primary layer and has an adhesive layer on the lower surface of the support structure. The support structure adhesive layer adheres the support structure to the upper surface of the primary layer.

A bladder urine volume monitoring system and a bladder urine volume monitoring method are provided. The bladder urine volume monitoring system includes at least one ultrasound patch, at least one muscle stimulation patch, and a control circuit. The ultrasound patch is configured to be attached to a surface of an organism to detect a urine volume in a bladder. The muscle stimulation patch is configured to be attached to the surface of the organism to stimulate a muscle of the bladder. The control circuit is coupled to the ultrasound patch and the muscle stimulation patch. The control circuit drives the ultrasound patch to detect the urine volume in the bladder in a first period. The control circuit drives the muscle stimulation patch to stimulate the muscle of the bladder in a second period.

Systems, apparatus, and method of monitoring a position of a joint. An inertial monitoring unit is configured to be coupled to a portion of a patient, such as a thigh. Another inertial monitoring unit is configured to be attached to another portion of the patient, such as a shank, that is connected to the other portion by a joint, such as a knee. The inertial monitoring units detect motion of their respective portions of the patient and transmit data indicative of this motion. These transmissions may be received by a computer and used to determine an orientation of the joint. The inertial monitoring units may also be coupled to vibration detection units and/or ultrasound modules that provide additional data regarding a condition of the joint.

A Doppler ultrasound instrument (10) includes ultrasound pulse control and data acquisition electronics (12, 24, 26) for acquiring Doppler ultrasound data, an N-channel connector port (14) for simultaneously operatively connecting up to N ultrasound transducer patches (16) where N is an integer equal to or greater than two, and an electronic processor (30) programmed to concurrently determine up to N blood flow velocities corresponding to up to N patches operatively connected to the N channel connector port. The blood flow velocity for each patch may be determined by: determining transducer blood flow velocities for ultrasound transducers (60) of a transducer array of the patch; and determining the blood flow velocity for the patch as a highest determined transducer blood flow velocity or as an aggregation of highest determined transducer blood flow velocities.

Cardiac monitoring is implemented by transmitting ultrasound energy into a lung of the subject, receiving ultrasound reflections, detecting Doppler shifts in the received reflections, and processing the Doppler shifts into power and velocity data. A plurality of cardiac cycles are identified within the power and velocity data, and a plurality of features corresponding to each of the plurality of cardiac cycles are identified. The identified features are characterized into a set of parameters, and the set of parameters is transmitted to a remote location. The set of parameters is analyzed at the remote location to determine if an abnormality exists. If an abnormality exists, an indication is output from the remote location.

Non-invasive blood pressure (NIBP) systems and methods are disclosed that measure a blood pressure, and in some examples a beat-to-beat blood pressure, of a patient without restricting blood flow. The NIBP systems determine an efficacy of administered cardiopulmonary resuscitation (CPR) to the patient based on the measured blood pressure and are able to optionally output the CPR efficacy or generate user prompts based on the CPR efficacy. Further, the disclosed NIBP systems can generate user instructions to administer further treatment to the patient based on the CPR efficacy.

Aspects of the technology described herein relate to an ultrasound device having a first analog-to-digital converter (ADC) configured to operate with a first ADC clock signal having a first timing delay and a second ADC configured to operate with a second ADC clock signal having a second timing delay. The first timing delay and the second timing delay may be different. The ultrasound device may further include delay control circuitry configured to control direct digital synthesis (DDS) circuitry to implement a first delay in ultrasound data from the first ADC and a second delay in ultrasound data from the second ADC. The first delay may correct for the first timing delay and the second delay may correct for the second timing delay.

An ultrasonic diagnostic imaging system has a thin two dimensional array transducer probe which is taped or belted to a patient to image a target region during radiotherapy. The radiotherapy procedure is conducted based upon planning done based on images of the target region acquired prior to the procedure. The array transducer is operated by an ultrasound system to produce three dimensional images of the target region by electronic beam steering, either during or between fractions of the treatment procedure. The ultrasound images are used to adjust the treatment plan in response to any movement or displacement of the target anatomy during the treatment procedure.