Provided herein are systems, methods and apparatuses for an Antenna Design for Biomarker Monitoring.

The present invention relates to a sensor arrangement comprising a support substrate and at least two microwave antennas fixedly arranged in or on said support substrate, each microwave antenna being separated from all other microwave antennas by a band-stop structure configured to cancel direct coupling between the microwave antennas, said sensor arrangement further comprising microwave signal transmission paths configured to transmit microwave signals to or from said microwave antennas. The invention also relates to a system comprising such a sensor arrangement and a method for non-invasive assessment of a property of subdermal tissue in a subject.

A system includes a control unit configured to be worn by a subject including one or more processors operatively coupled to a memory, a wireless transceiver, and a power supply for powering the one or more processors. The system also includes a computing device independent of the control unit including one or more processors operatively coupled to a memory, a wireless transceiver in communication with the wireless transceiver of the control unit, and a display. The system further includes at least one primary sensor and at least one secondary sensor mountable relative to the subject configured to generate respective primary and secondary signals and to communicate the primary and secondary signals to one of the control unit and the computing device.

Systems and methods are described for microwave-frequency, passive sensing of internal body temperature. Some implementations include one or more wearable sensors that wirelessly transmit temperature data continuously to a remote receiver. The sensor can include a probe designed to be placed on a skin site of an individual to receive near-field radiation at the skin site, and a radiometer to detect a total power of the received near-field radiation. The remote receiver includes a signal processing system that can convert the detected total power to an internal tissue temperature measurement by applying the detected power to a tissue stack model. The tissue stack model can characterize the skin site according to a set of weighting functions, each weighting function corresponding at least to electromagnetic characteristics of an associated tissue layer of the tissue stack model.

An exemplary embodiment of the present invention discloses a microwave signal processing method and apparatus which precisely focus a microwave onto a specific part of a biological tissue and rapidly images a temperature distribution in the biological tissue generated thereby.

Methods and apparatus monitor health by detection of sleep stage. For example, a sleep stage monitor may access sensor data signals related to bodily movement and respiration movements. At least a portion of the detected signals may be analyzed to calculate respiration variability. The respiration variability may include variability of respiration rate or variability of respiration amplitude. A processor may then determine a sleep stage based on a combination bodily movement and respiration variability. The determination of sleep stages may distinguish between deep sleep and other stages of sleep, or may differentiate between deep sleep, light sleep and REM sleep. The bodily movement and respiration movement signals may be derived from one or more sensors, such as non-invasive sensor (e.g., a non-contact radio-frequency motion sensor or a pressure sensitive mattress).

There is provided a device arranged to couple electromagnetic-imaging radiation from a source medium into an electromagnetic-imaging target, the device comprising a first supporting component having a thickness no greater than a wavelength of the electromagnetic-imaging radiation. The first supporting component supports a planar array of first conducting elements, wherein each first conducting element has a first dimension no greater than a first wavelength of the electromagnetic-imaging radiation.

A microwave imaging system including a microwave antenna array having a transmitting antenna and a plurality of receiving antennas, wherein the transmitting antenna is configured to transmit microwave signals over a range of frequencies so as to illuminate a body part of a patient and wherein the receiving antennas are configured to receive the microwave signals following scattering within the body part. A processor is configured to obtain a set of scattering parameters for the microwave signals over the range of frequencies and, using the scattering parameters, generate an output indicative of the internal structure of the body part to identify a region of interest within the body part. The processor is further configured to classify the region of interest based on a type of tissue therein by analyzing the change of the scattering parameters for the region of interest over the range of frequencies.

A blood glucose tracking system and method measures emitted microwave energy transmitted to and accepted by blood vessels in a desired target area of a patient in order to determine, in real time and in vivo, appropriate blood glucose levels. A measurement unit comprises a transmitter operatively connected to an antenna to deliver energy towards appropriate subcutaneous blood vessels. The measurement unit determines an accepted energy power value in the blood vessels associated with the desired target area. This measurement energy power value is compared with a calibration value, and the difference is used to determine a resultant blood glucose value. The determined blood glucose value may further be acclimatized using additional sensed values compensating for biological and ambient factors relevant to the patient. The final determined blood glucose value can be displayed for reading and/or transmitted and stored for recording for further reference.

Apparatus for determining height, width, weight or body mass index (BMI) of a subject or distance along an object. For BMI, the apparatus includes a digital camera; an application; a processing unit for storing the vertical and horizontal dimensions of known substantially rectangular reference objects. A user interface prompts and receives the type of reference object held by the user or its dimensions. For each of the vertical and horizontal dimensions, a magnitude in pixels and in distance of the reference object to form a ratio and a pixel magnitude of the vertical and horizontal dimensions of the subject in the image(s), is used to derive an estimated height and width of the subject from the pixel magnitude of the vertical and horizontal dimensions of the subject in the image(s). In some embodiments, the number of pixels occupied by the subject in the image(s) is used with a look-up table.