Provided herein are medical devices comprising a plurality of biologically interactive devices configured for interacting with a large area biological surface. The biologically interactive devices each may comprise a sensor for measuring a physiological parameter. A wireless controller is configured to wirelessly operate the plurality of biologically interactive devices. A wireless transmitter is configured for wirelessly communicating an output from said plurality of biologically interactive devices to a remote receiver. The medical devices are particularly suited for measuring one or both of pressure and temperature, with compatibility for incorporating additional sensors of interest.

Components and assemblies for acquisition and analysis of data collected from sites such body surfaces, footwear and apparel, objects, accessories, and the like are directed to providing intermittent and/or continuous monitoring and reporting of conditions such as force, pressure, shear and other conditions, activity and/or environmental parameters at body locations and/or at an interface of a body location and an object. In one aspect, sensor assemblies comprise one or more sensor(s) and/or associated electronics associated with at least one non-conductive carrier layer. Electronic components including sensor acquisition systems (SAS) and dedicated electronics devices (DED) providing electronics components for signal conditioning, data collection, storage, analysis, feedback, communications and optional sensing capabilities are also described.

Provided herein are systems, methods and devices for the Detection and Prevention of Pressure Ulcers. The system, methods, and devices generally relate to sensors and fluid systems for detecting ulcers and preventing further pain for the patient and allow healthcare providers with valuable information to reposition a patient.

The present disclosure provides apparatuses and methods for measuring capacitance as an indication of susceptibility to the formation of a diabetic foot ulcer.

A system for monitoring medical conditions including pressure ulcers, pressure-induced ischemia and related medical conditions comprises at least one sensor adapted to detect one or more patient characteristic including at least position, orientation, temperature, acceleration, moisture, resistance, stress, heart rate, respiration rate, and blood oxygenation, a host for processing the data received from the sensors together with historical patient data to develop an assessment of patient condition and suggested course of treatment, including either suspending or adjusting turn schedule based on various types of patient movement. The sensor can include bi-axial or tri-axial accelerometers, as well as resistive, inductive, capacitive, magnetic and other sensing devices, depending on whether the sensor is located on the patient or the support surface, and for what purpose.

Technologies are provided for determining a likelihood or risk of a human patient for developing pressure injury based on patterns of movement by the patient determined using a specialized measurement support surface. Some embodiments automatically ascertain whether patterns of movements of a human subject, whose weight is supported on the support surface, exhibit sufficient frequency and variability of activity such as will confer either certain health benefits or expose the individual to certain health risks, such as development of pressure ulcers in the load-bearing skin and soft tissues. If the determined patterns manifest such features associated with benefits or risks, then a notification may be provided for the patient to move; for instance, to the patient or a caregiver. In some embodiments, a notification may be provided at an irregular time intervals within-day intervals.

A method of identifying a subdermal feature in a subject includes directing optical energy into a subject to photoacoustically generate ultrasonic waves from a dermal or subdermal feature in tissue. Signals representing ultrasonic waves that are generated from the dermal or subdermal feature are received. The signals representing the ultrasonic waves are processed to generate image data of the dermal or subdermal feature. It is determined from the image data that the dermal or subdermal feature is a non-healing skin lesion selected from the group including a pressure ulcer, a diabetic foot ulcer, an arterial insufficiency injury, a decubitus ulcer, a diabetic ulcer, and an insufficiency injury.

Provided herein are medical devices, systems and platforms to monitor tissue properties such as oxygen saturation, temperature and degree of tissue edema for diagnosis and post-operative patient monitoring. The medical devices may be handheld or portable or may be removable patches. The medical devices utilize light of various visible and near-infrared wavelengths to interrogate a tissue where the intensities of reflected light correlate to one or more tissue property. Also provided are methods for measuring tissue properties, for detecting pressure ulcers and for remotely monitoring in real time a surgical flap on a post-operative subject via the medical devices.

The present disclosure provides methods of identifying a patient in need of pressure ulcer treatment and treating the patient with clinical intervention selected based on sub-epidermal moisture values. The present disclosure also provides methods of stratifying groups of patients based on pressure ulcer risks and methods of reducing incidence of pressure ulcers in a care facility.

A patient immersion sensor includes a radio detection and ranging (RADAR) apparatus to determine a time of flight (TOF) of a RADAR pulse and a reflected signal that is reflected by a patient or by a portion of a patient support surface supporting the patient. The TOF is indicative of an immersion depth or a distance toward bottoming out of a patient supported on the patient support surface, such as a mattress or a pad. The RADAR apparatus emits pulses of very short duration so as to be able to detect objects, such as a patient or a portion of a mattress or pad, at very close distances. The RADAR apparatus may use time-of-flight (TOF) between transmission of the pulse and receipt of a reflected signal to determine a distance toward bottoming out by the patient, thereby to determine if the patient is properly immersed into the patient support surface. Adjustments to inflation or deflation of one or more bladders are made to achieve a desired immersion amount within a tolerance range between upper and lower TOF thresholds.