A method for diagnosing a joint condition includes in one embodiment: creating a 3d model of the patient specific bone; registering the patient's bone with the bone model; tracking the motion of the patient specific bone through a range of motion; selecting a database including empirical mathematical descriptions of the motion of a plurality actual bones through ranges of motion; and comparing the motion of the patient specific bone to the database.

A skin-mountable device (10) is disclosed comprising a surface (11) carrying an adhesive layer (20) for adhering the device to a skin region (1) and a removable non-adhesive cover layer (30) shaped as a loop having a first loop portion (31) covering the entire adhesive layer and a second loop portion (35) returning over the first loop portion, the second loop portion containing a pull tab (37) for pulling the cover layer from the adhesive layer when the skin-mountable device is positioned on said skin region. Also disclosed is a method of affixing such a skin-mountable device (10) to a skin region (1).

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 system for monitoring blood flow in a patient, the system comprising: a single-element disc-shaped ultrasound transducer for fastening to the patient and a controller subsystem. The controller subsystem is configured to: control the ultrasound transducer to transmit a series of plane-wave pulses into the patient in a propagation direction; sample reflections of the plane-wave pulses, received at the ultrasound transducer, from a region within the patient, to generate pulse-Doppler response signals; and process the pulse-Doppler response signals to calculate a blood flow curve for waveform analysis.

A patch sensor adapted to process echo information to generate a first type of medical data and/or a second, different type of medical data using a respective processing pathway. A communications module of the patch sensor is adapted to be switchable between a first mode, in which only the first type of medical data is transmitted to a medical device, and a second mode, in which at least the second type of medical data is transmitted to the 5 medical device. The first type of medical data occupies a smaller bandwidth (during transmittal) than the second type of medical data.

A device is provided for automatically assessing functional hemodynamic properties of a patient is provided, the device comprising: a housing; an ultrasound unit coupled to the housing and adapted for adducing ultrasonic waves into the patient at a vessel; a detector adapted to sense signals obtained as a result of adducing ultrasonic waves into the patient at the vessel and to record the; and a processor adapted for receiving the recorded signals as data and transforming the data for output at an interface. Other devices, systems, methods, and/or computer-readable media may be provided in relation to assessing functional hemodynamics of a patient.

An acoustic sensing apparatus and method are disclosed for acoustically surveying the chest area of a subject, and in particular the rib cage. In use the apparatus is placed on the chest, and it includes an arrangement of one or more sound sensors for sensing acoustic signals received from inside the chest. Based on the signal intensities picked up at a plurality of different locations across the chest, the different locations are each classified by a controller as either rib-aligned or intercostal space-aligned. The controller is further adapted to identify one or more sound intensity hotspots (42) within the signal intensity distribution to locate one or more anatomical objects or regions of interest within the chest, such as the heart mitral valve, the heart tricuspid valve, heart aortic valve, and the pulmonary artery as key areas for an auscultation procedure.

Systems and methods are provided that integrate control electronics with a wireless on-board module so that a conformal ultrasound device is a fully functional and self-contained system. Such systems employ integrated control electronics, deep tissue monitoring, wireless communications, and smart machine learning algorithms to analyze data. In particular, a stretchable ultrasonic patch is provided that performs the noted functions. The decoded motion signals may have implications on blood pressure estimation, chronic obstructive pulmonary disease (COPD) diagnosis, heart function evaluation, and many other medical monitoring aspects.

A monitoring system includes a wearable patch device configured to be secured to a body of a patient, the wearable patch device comprising a patch body, a first discrete transducer associated with a first position of the patch body, a second discrete transducer associated with a second portion of the patch body, and a wireless transmitter, and electronics including one or more processors and one or more memory devices and configured to receive signals based on transducer readings of the first and second discrete transducers and determine an amount of blood flow through one or more valves of a heart of the patient based on the signals.

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.