Abstract: An apparatus and a method are described in which a signal is received from a gyroscope sensor mounted on a subject. The gyroscope sensor is configured to measure rotational movement of the subject's heart, the signal being indicative of a left ventricular twist of the subject's heart. A change in the left ventricular twist of the subject's heart caused by occlusion of blood flow by an arterial occlusion device configured to selectively occlude blood flow of the subject is determined.

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: A method of detection of a recurrent feature of interest within a signal including: obtaining evidence, based on a signal, the evidence including a probability density function for each of a plurality of parameters for parameterizing the signal, including at least one probability density function for a parameter, of the plurality of parameters, that positions a feature of interest within signal data of the signal; parameterizing a portion of the signal data from the signal based upon a hypothesis that a point of interest in the signal data is a position of the feature of interest; determining a posterior probability of the hypothesis being true given the portion of the signal data by combining a prior probability of the hypothesis and a conditional probability of observing the portion of the signal data given the hypothesis.

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: According to various, but not necessarily all, embodiments there is provided a respiratory volume measurement system. The respiratory volume measurement system comprises: at least one motion sensor and a machine learning system. The at least one motion sensor is configured to be placed on a chest wall of a subject to produce at least one sensor output signal dependent upon respiratory motion of the chest wall of the subject. The machine learning system is configured to receive at least the sensor output signal as an input and to produce at least a respiration measurement output, different to the sensor output signal, that provides at least a measure of respiration volume of the subject.

Abstract: An apparatus and a method are described in which a signal is received from a gyroscope sensor mounted on a subject. The gyroscope sensor is configured to measure rotational movement of the subject's heart, the signal being indicative of a left ventricular twist of the subject's heart. A change in the left ventricular twist of the subject's heart caused by occlusion of blood flow by an arterial occlusion device configured to selectively occlude blood flow of the subject is determined.

Abstract: An apparatus and method includes: obtaining a ballistocardiographic signal for a subject; determining an I-J interval from the ballistocardiographic signal, including detecting peaks and troughs in the ballistocardiographic signal; and providing an output indicative of a left ventricular ejection time based on the determined I-J interval.

Abstract: An apparatus including at least one processor; and at least one memory including computer program code, the at least one memory and computer program code configured to, with the at least one processor, cause the apparatus at least to: control the magnitude of a stimulus applied by a stimulator to the skin of a human or animal body; and receive an output from a sensor configured to detect the response of a muscle in the human or animal body to the applied stimulus, the sensor output in combination with the magnitude of the applied stimulus enabling the sensitivity of the human or animal body to the applied stimulus to be determined.

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: An apparatus including a nipple chamber having opposing first and second chamber ends, the chamber configured to receive a nipple of a mammary gland though the first chamber end and dimensioned to hold the nipple-end of a received nipple proximal to the opposing second chamber end, the second chamber end being substantially closed with one or more apertures therein to allow milk from the received nipple to flow out of the second chamber end and produce turbulence in the milk flow; and a microphone located proximal to the nipple chamber and configured to receive an acoustic signal produced by the turbulent milk flow in the nipple chamber.

Abstract: An apparatus including a body made of force-conveying material, wherein the body includes a nozzle part and a base part, the nozzle part protruding from the base part, and wherein the nozzle part is configured to fit at least partly into a mouth of a subject for feeding the subject, and at least one deformation sensor located in the base part, the deformation sensor being configured to sense, at the base part, deformation conveyed from the nozzle part through the force-conveying material.