Abstract: A filter assembly for a plate heat exchanger comprising inlet and outlet ports for passage of a working medium and a cooling or heating fluid, respectively, wherein the filter assembly is dimensioned to fit into the inlet or outlet ports, wherein the filter assembly comprises a proximal flange and a distal flange and at least one filter tube attached at respective ends to the proximal flange and the distal flange, respectively, wherein the at least one filter tube is adapted to receive an elongated filter element and further comprises a plurality of inlet holes arranged on a circumferential surface thereof, and wherein the distal flange comprises at least one through-going outlet aperture in fluid communication with the interior of the at least one filter tube.

Abstract: An apparatus and electronic circuitry wherein the apparatus includes a first electrode arranged to enable an output indicative of a bioelectrical signal to be provided; a second electrode; and a deformable material positioned between the first electrode and the second electrode wherein the deformable material is positioned within the apparatus such that deformation of the deformable material causes a change in charge distribution across the first electrode and second electrode to enable an output indicative of a biomechanical signal to be provided by the apparatus.

Abstract: Methods and systems are provided for selectively increasing an electrode count in a bio signal monitoring system via an extension connector. In an example, a bio signal monitoring system may comprise an integrated electrode coupler configured to be selectively connected to one or more removable electrodes via one or more corresponding extension cables. In this way, electrodes may be added or removed from the bio signal monitoring system based on a monitoring process selected.

Abstract: A method, apparatus and computer program, the method comprising: receiving a first biopotential signal obtained by a first capacitive sensor; receiving a second biopotential signal obtained by a second capacitive sensor, the first capacitive sensor and the second capacitive sensor being positioned at different locations on a subject; synchronising biopotential signals obtained by the first capacitive sensor and the second capacitive sensor by applying a time adjustment to biopotential signals obtained by at least one of the first capacitive sensor or the second capacitive sensor; wherein features in at least one of the first biopotential signal and the second biopotential signal are used to synchronise the biopotential signals obtained by the first capacitive sensor and the second capacitive sensor.

Abstract: An apparatus, method and computer program is described comprising: varying a magnetic field strength of a magnetic field applied to a subject; determining a rate of power loss of the magnetic field, wherein the rate of power loss is a function of the varying magnetic field strength; and providing an output signal based on the determined rate of power loss, wherein the output signal comprises information relating to a conductivity distribution of the subject.

Abstract: An apparatus with a first photodetector and a second photodetector is provided. The apparatus is configured to receive light, and the first photodetector is configured to detect a first portion of the light. The first photodetector and the second photodetector are in a stacked arrangement and the apparatus is configured to pass a second portion of the light through the first photodetector to the second photodetector. The apparatus further includes an optical blocking filter configured to filter the second portion of the light prior to the second portion of the light arriving at the second photodetector.

Abstract: An apparatus comprising: at least one electrode, having a first potential, arranged to sense a biosignal; a conductive shield provided over the at least one electrode where the conductive shield is configured to be driven to a second potential wherein the second potential is equivalent to the first potential plus a multiple of an inverted common mode voltage; and wherein the conductive shield is coupled to a drain to enable triboelectric charges to be dissipated.

Abstract: An electrode for a user wearable apparatus; the electrode comprising: a conductive part comprising conductive material, wherein the conductive part is configured to provide electrical connection to electronic components of the user wearable device, and an opening configured to provide an optical connection to electronic components of the user wearable apparatus through the electrode.

Abstract: An approach is provided for synchronizing an impedance cardiography (“ICG”) measurement period with an electrocardiography (“ECG”) signal to reduce patient (105) auxiliary current. The approach involves measuring an ECG signal of a patient via an ECG device (103). The approach also involves processing the ECG signal to cause, at least in part, a detection of one or more ECG features of the signal. The approach further involves synchronizing a start, a stop, or a combination thereof of a measurement of an ICG signal of the patient via an ICG device (101) based, at least in part, on the detection of the one or more ECG features. The measurement of the ICG signal includes injecting an electrical current into the patient (105) for a duration of the measurement.

Abstract: According to an example aspect of the present invention, there is provided an apparatus comprising a memory configured to store an identifier of the apparatus, at least one processing core configured to obtain, from sensor information, a service identifier and a session identifier, compile a message addressed to a service provider associated with the service identifier, the message comprising the identifier of the apparatus and the session identifier, and cause transmission of the message toward the service provider.

Abstract: An apparatus comprising: a connector configured to be electrically and mechanically connectable to an electrical terminal, wherein the connector comprises a resistive material. The connector comprises respective first and second electrical contacts, wherein the resistive material is configured to provide a direct current connection for the flow of electric current between the first and second electrical contacts.

Abstract: An apparatus, such as a photoplethysmographic sensor, including a light source configured to illuminate a target, wherein the apparatus is configured to receive incident light reflected from or transmitted through the target. The apparatus includes also a reflective element configured to direct at least part of the received incident light to a focus point, and a photodetector configured to receive light from the focus point.

Abstract: An apparatus comprising: a displacement current sensor configured to measure for a subject one or more sensed electrical signals; and circuitry configured to process the one or more sensed electrical signals to obtain an electrocardiogram signal and a variable impedance signal caused by an arterial pulse wave.

Abstract: An apparatus with a first photodetector and a second photodetector is provided. The apparatus is configured to receive light, and the first photodetector is configured to detect a first portion of the light. The first photodetector and the second photodetector are in a stacked arrangement and the apparatus is configured to pass a second portion of the light through the first photodetector to the second photodetector. The apparatus further includes an optical blocking filter configured to filter the second portion of the light prior to the second portion of the light arriving at the second photodetector.

Abstract: A method comprising: determining a time difference between detecting a heart-related signal of a subject and detecting a vasculature signal of the subject at a first one of a plurality of distributed sensors; using a controller to automatically estimate an in-vivo distance from the heart of the subject to the first one of the plurality of sensors in dependence upon a determined unconstrained body position of the subject; and calculating a pulse wave velocity.

Abstract: An apparatus with a first photodetector and a second photodetector is provided. The apparatus is configured to receive light, and there is an optical arrangement configured to split the light received at the apparatus so that a first portion of the light is directed to the first photodetector and a second portion of the light is directed to the second photodetector. An optical blocking filter is configured to filter the second portion of the light prior to the second portion of the light arriving at the second photodetector.

Abstract: An apparatus with a photodetector area comprising a first photodetector area and a second photodetector area, the first and second photodetector areas having co-planar interlocking shapes, and an optical blocking filter configured to filter light incident on the second photodetector area.

Abstract: An apparatus comprising: a connector configured to be electrically and mechanically connectable to an electrical terminal, wherein the connector comprises a resistive material. The connector comprises respective first and second electrical contacts, wherein the resistive material is configured to provide a direct current connection for the flow of electric current between the first and second electrical contacts.

Abstract: A method, apparatus and computer program, the method comprising: receiving a first biopotential signal obtained by a first capacitive sensor; receiving a second biopotential signal obtained by a second capacitive sensor, the first capacitive sensor and the second capacitive sensor being positioned at different locations on a subject; synchronising biopotential signals obtained by the first capacitive sensor and the second capacitive sensor by applying a time adjustment to biopotential signals obtained by at least one of the first capacitive sensor or the second capacitive sensor; wherein features in at least one of the first biopotential signal and the second biopotential signal are used to synchronise the biopotential signals obtained by the first capacitive sensor and the second capacitive sensor.

Abstract: An apparatus comprising: a first displacement current sensor comprising a first sensing electrode and a first guard electrode, wherein the first displacement current sensor is configured to measure a first sensed signal dependent upon electrical activity of a subjects heart; a second displacement current sensor comprising a second sensing electrode and a second guard electrode, wherein the second displacement current sensor is configured to measure a second sensed signal dependent upon electrical activity of a subjects heart; and circuitry configured to process at least the first sensed signal to compensate for artefacts arising from motion of the subject.