Abstract: The present invention relates to a device and method for noninvasively determining the hematocrit value of a subject. The device comprises a light source (22, 23) for emitting light onto a skin area of the subject, said light comprising first light at a first wavelength in a first wavelength range between 500 and 1000 nm and second light at a second wavelength in a second wavelength range between 1000 and 2000 nm, a reflection detector (24) for detecting light reflected from said skin area of the subject in response to light illumination by said light source, a transmission detector (25) for detecting light transmitted through said skin area of the subject in response to light illumination by said light source, a processing unit (31) for deriving plethysmography, PPG, signals for said first and second wavelengths from the light detected by said reflection detector (24) and said transmission detector (25), and an analysis unit (32) for determining the hematocrit value of the subject from said PPG signals.

Abstract: The present disclosure pertains to a system and method for monitoring and for facilitating pulmonary and systemic hemodynamics in the treatment and/or prevention of cardiac arrhythmias or structural cardiac changes, caused by altered preload. The system comprises: a pressure generator; a first sensor configured to generate output signals conveying information related to venous blood accumulation during cardiac preload in the subject; a second sensor configured to generate output signals conveying information related to systemic arterial circulation in the subject; and one or more hardware processors configured by machine-readable instructions to control the pressure generator to adjust the pressure levels of the flow of breathable gas during one or both of inhalation and exhalation to facilitate the pulmonary and systemic circulation based on the output signals from the first sensor and the second sensor.

Abstract: The invention provides a magnetic inductive sensing device (30) comprising a loop antenna (10) for inductively coupling with electromagnetic (EM) signals emitted from a medium in response to stimulation of the medium with electromagnetic excitation signals. The device includes an electromagnetic shield (36) element which is arranged such as to intercept electromagnetic signals travelling to or from the antenna. The shield element is formed of conductive material such as to block electrical field components of incident signals but further incorporates a non-conductive gap in the material so as to prevent the formation of eddy currents. A loop of the antenna is broken by an opening, the opening being bridged by a capacitor, and the device comprises a signal processing means which is electrically coupled to the antenna via only a single point of the antenna, located to one side of the opening.

Abstract: Presented are concepts for monitoring cardio-respiratory function of a patient. One such concept comprises detecting light or sound from the sublingual vasculature using a sublingual sensor unit adapted to be positioned at a sublingual vasculature of the patient's tongue and to generate a sensor output signal based on the detected light or sound. A processing unit adapted to receive at least one of the sensor unit output signal, wherein the sensor unit and the processing unit are arranged to analyze the venous component in the sensor output signal. An output signal from the sublingual sensor may then be used to provide information on cardio-respiratory parameters like respiration rate and respiration rate variability, for example.

Abstract: The invention provides a magnetic inductive sensing system for sensing electromagnetic signals emitted from a body in response to electromagnetic excitation signals applied to the body. The electromagnetic signals are generated and sensed by the same loop resonator which comprises a single-turn loop antenna and a tuning capacitor. The loop antenna of the resonator and a signal generation means for exciting the resonator to generate excitation signals are together configured so as to optimize the value of a ratio between the radial frequency of the generated electromagnetic excitation signals and a reference frequency of the antenna, where the reference frequency is the frequency for which one wavelength of the generated excitation signals (waves) matches the circumferential length of the antenna. This ratio, which corresponds to a normalized radial frequency of the generated excitation signals, is maintained between a value of 0.025 and 0.50.

Abstract: According to an aspect, there is provided a stethoscope apparatus stethoscope apparatus, the stethoscope apparatus comprising a sound sensor for measuring sounds produced by the breathing of a subject and for outputting a sound signal representing the measured breathing sounds; an antenna for receiving a modulated electromagnetic signal from the body, wherein the modulated electromagnetic signal is modulated by movement of air, fluid and/or tissue in the body; a processing unit that is configured to receive the sound signal from the sound sensor and the modulated electromagnetic signal from the antenna; and normalise the sound signal using the modulated electromagnetic signal.

Abstract: A device (10, 10?, 10?) includes a light source (12) and a light detector (14) spaced from, and in communication with, the light source (12). An electronic processor (18) is programmed to compute pulse oximetry data from output of the light detector (14). A clamping member (26) is included, on or in which the light source (12) and the light detector (14) are disposed. The clamping member (26) is configured for attachment to a human body part with the body part disposed between the light source (12) and the light detector (14) such that light from the light source (12) passes through the body part to reach the light detector (14). The clamping member (26) is configured to attach to the body part by transitioning from a first stable state to a second stable state via a compression force applied to the clamping member (26).

Abstract: A gas sensor system is for use in, or in the vicinity of, a toilet, for detecting a target gas. A gas sensor detects a concentration of at least the target gas and a further, reference, gas which is received from a controlled gas release device. These concentrations are processed to obtain a concentration of the target gas relative to the concentration of the further gas by combining a change in the detected concentration of the target gas, a change in the detected concentration of the further gas, the sensitivity of the gas sensor system to the target gas and the sensitivity of the gas sensor system to the further gas. This approach avoids the need for extensive calibration operations to tune the sensor response to the environment in which it is used.

Abstract: A method, system, and device for providing a consumption threshold to a user regarding consumption of an item such as coffee. The method comprises the steps of: receiving (420) one or more goals from the user; generating (430), based on the received one or more goals from the user, a consumption threshold; providing (440) the generated consumption threshold to the user; receiving (450) information about the user; updating (460), based on the information about the user, the consumption threshold; and providing (440) the updated consumption threshold to the user.

Abstract: The present invention relates to a device, system and method for monitoring of peripheral arterial perfusion of a subject.

Abstract: The present invention relates to a device (10), system (1) and method (200) for use in blood oxygen saturation measurement of a subject.

Abstract: A device (10, 10?, 10?) includes a light source (12) and a light detector (14) spaced from, and in communication with, the light source (12). An electronic processor (18) is programmed to compute pulse oximetry data from output of the light detector (14). A clamping member (26) is included, on or in which the light source (12) and the light detector (14) are disposed. The clamping member (26) is configured for attachment to a human body part with the body part disposed between the light source (12) and the light detector (14) such that light from the light source (12) passes through the body part to reach the light detector (14). The clamping member (26) is configured to attach to the body part by transitioning from a first stable state to a second stable state via a compression force applied to the clamping member (26).

Abstract: There is provided a method of improving a measurement of the flow velocity of blood in a blood vessel of a subject, the method comprising using an ultrasound transducer to emit an ultrasound beam to measure flow velocity in a part of a body of a subject; forming a spatial time velocity profile for the part of the body from the measured flow velocity; and analyzing the spatial time velocity profile to determine a correction to the angle of the ultrasound beam with respect to the subject, the correction being based on a difference between the position of a peak in the spatial time velocity profile and the center of the spatial time velocity profile.

Abstract: The present invention relates to a device (10) and method for non-invasively measuring a hydration state of a living being (62). To improve with respect to the convenience-to-use, the cost-effectiveness and the accuracy of the delivered results, the proposed device comprises a first light source (14) for emitting light of a first wavelength into a tissue portion (12) of the living being (62), polarization means (18) for polarizing at least part of the emitted light prior to an interaction of the emitted light with the tissue portion (12), a first light detector (26) for detecting polarized light of the first wavelength reflected at the tissue portion (12) and processing means (32) configured to derive a tissue hydration parameter from the detected reflected polarized light and to determine a body hydration index based on said tissue hydration parameter.

Abstract: The present invention relates to an ultrasound apparatus for medical examination of a subject. The ultrasound apparatus comprises a plurality of ultrasound transducers for emitting and receiving ultrasound waves and for providing different ultrasound signals on the basis of the ultrasound waves. A connection layer is provided, which is attachable to the subject, wherein the ultrasound transducers are coupled to the connection layer. A processing unit, which is connectable to the ultrasound transducers is provided for receiving the ultrasound signals and for determining at least one parameter on the basis of the ultrasound signals. The processing unit is adapted to determine at least one parameter indicative of a relative position of the ultrasound transducers to each other and/or a shape of the connection layer and the ultrasound waves are surface acoustic waves transmitted through the connection layer or a layer attached to the connection layer.

Abstract: The capillary refill time (CRT) of a patient is an important feature in the determination of cardiovascular system health quick reperfusion of the microcirculation (namely, the capillaries) is a good indication that the cardiovascular system is able to efficiently distribute blood throughout the body. Current systems use unreliable or subjective methods to test the CRT. Additionally, the calculation of CRT is not generally used in the adult medical space as it is more commonly used in pediatrics. The present application describes a system and method for calculating a patient's CRT using a mobile device (102, 200, 300) with an integrated camera (204, 302) and light source (202), or an optical head-mounted display (300) using a light source (202) in combination with ambient light to calculate the CRT. Once a patient's CRT is calculated, the integrated application (206, 306) classifies the data and sends it to the treating clinician for review.

Abstract: A monitoring apparatus for monitoring a blood pressure information of a subject is disclosed. The monitoring apparatus comprises an ultrasound transducer for emitting ultrasound waves to a volume of the subject that includes a blood vessel and for receiving ultrasound waves from said volume of the subject, and for providing a first signal on the basis of ultrasound waves received from the volume of the subject. A light source is included for emitting light to the subject and a light sensor is included for detecting light received from the subject and for providing a second signal on the basis of the light received from a skin of the subject.

Abstract: A remote photoplethysmography system includes a filter (10) for application to a detection unit. The filter further includes a first filter area (11) configured to transmit light (A) at a first wavelength and a second filter area (12) configured to transmit light (D) at a second wavelength. The detection unit (22) detects radiation received from the first filter area and from the second filter area of the filter. An analysis unit (6) determines the vital sign information of the subject from the detected radiation from the first filter area and from the second filter area.

Abstract: There is provided an apparatus for using magnetic induction spectroscopy, MIS, to determine a measure of the fluid content of a tissue sample of a subject, the apparatus comprising a first excitation coil that is to be placed near to the tissue sample for inducing a current in the tissue sample; a reference coil; a second excitation coil that is arranged close to the reference coil and that is for inducing a current in the reference coil; and a control unit that is configured to apply an alternating current to the first excitation coil and the second excitation coil; obtain a measure of the current induced in the tissue sample; and determine a measure of the fluid content of the tissue sample from the measure of the current induced in the tissue sample.

Abstract: The present invention relates to device, system and method for detecting a cardiac and/or respiratory disease of a subject. The proposed device comprises a sound input (20) for obtaining a sound signal representing sounds generated by the subject's body; a motion input (21) for obtaining a motion signal representing motions generated by the subject's body; and a processor (22) for processing the obtained sound signal and motion signal.