An assembly and method for positioning a fetal heart transducer against skin. The assembly includes a strip having first and second ends and openings along its length, first and second fixation devices, each device having first and second surfaces, the first surface having adhesive thereon. A protuberance extends outwardly from the second surface. The assembly includes a fetal heart transducer. The first fixation device is secured to the skin at a first location and the protuberance of the first fixation device is received into a first opening on the first end of the strip. The first surface of the second fixation device is secured to the skin at a second location and the protuberance of the second fixation device is received into a second opening on the second end of the strip. The fetal heart transducer is secured between first and second fixation devices and beneath the strip.

An electronic device includes a housing, a first printed circuit board (PCB) provided within the housing, a second PCB provided within the housing, and a battery. The second PCB is separate and distinct from the first PCB and is communicatively coupled to the first PCB. The battery is located in a space separating the first PCB and the second PCB. The battery is configured to provide power to the first PCB and the second PCB.

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.

Methods for patient self-monitoring of vascular lumen dimensions, in particular in the inferior vena cava (IVC) for determining heart failure status of a patient. Related therapy systems as well as monitoring and therapy methods are also disclosed.

An ultrasound cardiovascular measuring device may include an ultrasonic sensor system having an ultrasound transmitter layer configured to generate ultrasonic plane waves and a focusing layer that includes one or more lenses. One or more of the lenses may be configured to generate output signals corresponding to detected ultrasonic reflections. The measuring device may include a control system capable of processing the output signals to calculate values corresponding to one or more cardiovascular properties.

A system for calculating blood pressure may include a sensor system and a control system. The control system may be capable of controlling one or more sensors of the sensor system to take at least two measurements, the at least two measurements including at least one measurement taken at each of two or more different measurement elevations of a subject's limb. In some examples, the control system may be capable of determining a blood flow difference based on the at least two measurements, of determining a hydrostatic pressure difference based on the two or more different elevations of the at least two measurements and of estimating a blood pressure based on one or more values of blood flow, the hydrostatic pressure difference and the blood flow difference.

The pumping of arterial blood into the cerebral spinal fluid (CSF) of a patient's brain creates cycle pressure undulations in the CSF and the brain itself. Brain injuries can create abnormal changes in this pressure waveform. Accordingly, the disclosed technology includes an ultrasound based device for monitoring this brain movement in the CSF (“pulsatility”) to diagnose and monitor brain injury.

Provided is a non-invasive system and method of determining muscle tissue size based on image processing. The method includes receiving at least one ultrasound scan image of at least a portion of a skin layer as disposed above one or more additional tissue layers, the image provided by a plurality of pixels. The method continues by introducing noise into the pixels of the image and thresholding the pixels of the image to provide a binary image having a plurality of structural elements of different sizes. The method continues with morphing the structural elements of the binary image to remove small structural elements and connect large structural elements. With this resulting image, the method distinguishes muscle tissue from remaining elements and determines the muscle tissue size. Associated apparatuses and computer program products are also disclosed.

Splints for diagnostic and/or therapeutic purposes are disclosed. In one aspect, the present disclosure relates to a splint system for diagnostic and/or therapeutic functions for a patient with a vascular impairment. In one embodiment, the splint system includes a splint having: a leg supporting portion and a foot supporting portion, that are configured to support and secure the leg and foot of the patient; a locally and/or remotely controllable portion for setting a dorsiflexion angle of the foot of the patient, including electrical and/or mechanical controls and one or more actuators for setting of the dorsiflexion angle, for providing treatment to improve vascular function; and a plurality of physiological parameter sensors for measuring physiological parameters of the leg and/or foot of the patient, wherein the physiological parameters are associated with vascular function in the leg and/or foot of the patient.

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.