Abstract: Systems and techniques for remote medical monitoring. In one implementation, a method includes monitoring a first medical condition of an individual, the monitoring being initiated remotely by a monitoring service, receiving a query relating to a second medical condition of the individual, transmitting a response to the query to the monitoring service, receiving a prompt from the monitoring service, and transmitting a response to the prompt to the monitoring service. The query is received from the monitoring service. The prompt is designed to provoke a particular action.

Abstract: In one embodiment, an ambulatory encoding monitor recorder optimized for rescalable encoding and a method of use are provided. The monitor recorder includes a memory configured to store a plurality of codes and a plurality of electrocardiographic values associated with each of the codes; and a micro-processor configured to obtain electrocardiographic values during a sequence of temporal windows and to process the electrocardiographic values within each of the windows, the processing including: perform a mathematical operation on two of the electrocardiographic values; analyze a result of each of the mathematical operations; based on the analysis, adjust the plurality of the electrocardiographic values associated with each of the codes; encode each of the electrocardiography values within that window with one of the codes based on the adjusted plurality of the electrocardiographic values associated with that code; and write each of the codes into a sequence in the memory.

Abstract: An electrocardiography monitor configured for self-optimizing ECG data compression is provided. ECG waveform characteristics are rarely identical in patients with cardiac disease making this innovation crucial for the long-term data storage and analysis of complex cardiac rhythm disorders. The monitor includes a memory and a micro-controller operable to execute under a micro-programmable control and configured to: obtain a series of electrode voltage values; select one or more of a plurality of compression algorithms for compressing the electrode voltage series; apply one or more of the selected compression algorithms to the electrode voltage series; evaluate a degree of compression of the electrode voltage series achieved using the application of the selected algorithms; apply one or more of the compression algorithms to the compressed electrode voltage series upon the degree of compression not meeting a predefined threshold; and store the compressed electrode voltage series within the memory.

Abstract: Various embodiments of the disclosed technology present a structural foundation for volumetric flow reconstructions for expiratory modeling enabled through multi-modal imaging for pulmonology. In some embodiments, this integrated multi-modal system includes infrared (IR) imaging, thermal imaging of carbon dioxide (CO2), depth imaging (D), and visible spectrum imaging. These multiple image modalities can be integrated into flow models of exhale behaviors enable the creation of three-dimensional volume reconstructions based on visualized CO2 distributions over time, formulating a four-dimensional exhale model which can be used to estimate various pulmonological traits (e.g., breathing rate, flow rate, exhale velocity, nose/mouth distribution, tidal volume estimation, and CO2 density distributions).

Abstract: A system for characterization of a brain tissue sample includes a laser having an excitation fiber and a probe coupled to the excitation fiber for irradiating the brain tissue sample with light at an excitation wavelength. The probe further includes a plurality of return fibers for receiving light scattered from the brain tissue sample, wherein each return fiber includes a microfilter that permits light to pass for a different, spaced apart marker region. A Raman spectrometer is in communication with the plurality of return fibers, and a processor is in communication with the Raman spectrometer for analyzing Raman spectra within the marker regions to identify a tissue type of the brain tissue sample as one of normal white matter brain tissue, normal grey matter brain tissue, brain tumor tissue, infiltrating tumor tissue, and necrotic tissue.

Abstract: An electromagnetic (EM) probe for monitoring one or more biological tissues. The EM probe comprises a cup shaped cavity having an opening and an interior volume, a circumferential flange formed substantially around the cup shaped cavity, in proximity to the opening, at least one layer of a material, for absorbing electromagnetic radiation, applied over at least one of a portion of the circumferential flange and a portion of the outer surface of the cup shaped cavity, and at least one EM radiation element which performs at least one of emitting and capturing EM radiation via the interior volume.

Abstract: Detection systems and methods configured to scan and interpret a suspected infection at in vivo biological target site, comprising emitting excitation light selected to elicit fluorescent light from a suspected infection at the target site; sensing fluorescent light emanating from the target site elicited by such excitation light; sensing heat levels above ambient body temperature emanating from the target site; and then based at least in part on the sensed fluorescent light and the heat levels, determining a probability whether the target site comprises an infection.

Abstract: A system for optical spectroscopy through a probe (10) implanted in a tissue, the system including a light collecting probe (10) comprising a waveguide formed by a single optical fiber (11) and having a proximal end (11a) and a distal end (11b), the proximal end (11a) being formed with a taper (12) along which at least one optical window (11c) is positioned, wherein light entering at an axial section of the taper (12) generates a specific subset of guided modes defined by the diameter (a1, a2, . . . , an) of the optical fiber at that axial section, the guided modes propagating toward the distal end (11b) of the waveguide and generating an output (OUT) at the distal end of the waveguide; a demultiplexer (20) configured to receive outputs (OUT) provided by the probe (10) and discriminate the outputs (OUT) based on their modal content of origin; and a detector (30) configured to detect the discriminated outputs.

Abstract: A method (300) for detecting one or more caries using an imaging device (10), the method including the steps of: (i) directing (320) light from a first light source (12) toward a tooth (40); (ii) measuring (340), with an optical sensor (16), transmission of light from the first light source through the tooth; (iii) directing (330) light from a second light source (14) toward the tooth, wherein the second light source directs light at the tooth at a different angle relative to the first light source; (iv) measuring (350), with the optical sensor, reflectance from the tooth of light from the second light source; (v) comparing (360) the measured transmission to the measured reflectance; and (vi) determining (370), based at least in part on said comparison, whether a caries is present in the tooth.

Abstract: A method and system for enhancing radio frequency energy delivery to a tissue region of interest. The method and system direct with a radio frequency (RF) applicator, one or more RF energy pulses into the tissue region of interest, the tissue region of interest comprising an object of interest and at least one reference that are separated by at least one boundary; detect with an acoustic receiver, at least one bipolar acoustic signal generated in the tissue region of interest in response to the RF energy pulses and processing the at least one bipolar acoustic signal to determine a peak-to-peak amplitude thereof; adjust the RF applicator to maximize the peak-to-peak amplitude of bipolar acoustic signals generated in the tissue region of interest in response to RF energy pulses generated by the adjusted RF applicator; and direct with the adjusted RF applicator, one or more RF energy pulses into the region of interest.

Abstract: A method of operating a hearing system comprising a first hearing device and a second hearing device, includes: obtaining sensor data, the sensor data comprising first sensor data representing first physiological data and second sensor data representing second physiological data, where the first sensor data comprises or is indicative of first sensor signal from the first hearing device configured to be arranged at a first ear of a user, and the second sensor data comprises or is indicative of second sensor signal from the second hearing device configured to be arranged at a second ear of the user; comparing the first sensor data and the second sensor data; determining a first parameter based on a result from the act of comparing the first sensor data and the second sensor data; and outputting a first output signal indicative of the first parameter.

Abstract: Devices, methods and systems for predicting and detecting a change in a physiological condition of a subject are disclosed. A device for detecting and predicting a change in physiological condition of a subject may include one or more processors configured to: (i) analyze changes in a heart rhythm of a subject; (ii) analyze a signal from one or more biomarkers that are associated with a physiological condition of the subject; and (iii) determine, based on the changes in the heart rhythm and the signal from the one or more biomarkers, whether there is a change in the physiological condition of the subject during a time period.

Abstract: A blood flow meter includes a rotor configured to be placed within a flow of blood and to be driven to rotate by the flow of blood; a magnetic encoder configured to sense the rotation of the rotor and to generate a rotation signal based on the sensed rotation of the rotor; a first pressure sensor configured to measure an upstream pressure; a second pressure sensor configured to measure a downstream pressure; and a control unit. The control unit is configured to determine a differential pressure, the differential pressure including a difference between the downstream pressure and the upstream pressure; and cause an alteration to the rotation of the rotor based on the differential pressure.

Abstract: Medical devices can perform a plurality of functions, such as sensing, monitoring, deriving and/or calculating various physiological statuses of a patient (e.g., blood pressure, temperature, respiration rate, etc.). Medical devices can also be used to image part or all of a patient's body, to deliver a treatment, or to manage information related to a patient's care. The present disclosure is directed at one or more devices that perform these functions using a plurality of processing circuits, wherein each processing circuit has a timing circuit with a local clock. These processing circuits can be connected via a network, and each timing circuit can communicate with at least one other timing circuit in order to detect and correct time-differences between their local clocks. In this way, multiple processing circuits can be synchronized with each other to facilitate diagnosis or treatment of a patient's condition, or other aspects of a patient's care.

Abstract: A method of non-invasive, continuous, real-time measurement of blood pressure includes applying a wearable blood-pressure monitoring device to a bodily region of a wearer. The wearable blood-pressure monitoring device includes a plurality of pulse sensors or a sensor offering a plurality of observations. The wearable blood-pressure monitoring device is calibrated such that a subset of the plurality of pulse sensors or observations are selected. The selected subset of the plurality of pulse sensors measure a pulse wave velocity and other important physiological parameters of the wearer. The measured pulse wave velocity and other important physiological parameters are converted to a blood pressure of the wearer.

Abstract: An antenna device for biological measurement according to the present invention includes a belt to be worn as surrounding a measurement target site of a living body. A transmission/reception antenna group is provided to the belt and includes a plurality of antenna elements. In a wearing state where the belt is worn as surrounding an outer surface of the measurement target site, a radio wave is emitted toward the measurement target site using any one of the antenna elements as a transmission antenna. A reflected radio wave is received using any one of the antenna elements as a reception antenna. A transmission/reception antenna pair formed of the transmission antenna and the reception antenna is selected by switching or weighted among the plurality of antenna elements based on a reception output.

Abstract: Current oscillometric devices for monitoring central blood pressure (BP) maintain the cuff pressure at a constant level to acquire a pulse volume plethysmography (PVP) waveform and calibrate it to brachial BP levels estimated with population average methods. A physiologic method was developed to further advance central BP measurement. A patient-specific method was applied to estimate brachial BP levels from a cuff pressure waveform obtained during conventional deflation via a nonlinear arterial compliance model. A physiologically-inspired method was then employed to extract the PVP waveform from the same waveform via ensemble averaging and calibrate it to the brachial BP levels. A method based on a wave reflection model was thereafter employed to define a variable transfer function, which was applied to the calibrated waveform to derive central BP.

Abstract: A method of measuring biological signals of a person including obtaining physiological signals; converting the physiological signals to an energy entropy signal, determining one or more statistical features based on the energy entropy signal, and selecting and combining two or more of the features.

Abstract: Disclosed is a device for contactless measuring of an embryo's heart rate in an egg whereby infrared light is sent in the egg by one light source, and the reflection of that light is detected by one or more light sensors and converted into a signal representative for the heart rate, whereby a shield is provided to avoid light that is reflected on the egg shell interfering with the light sensors. The shield is provided at the light source and not at the light sensors, whereby a light tube is provided between the light source and the egg and the light tube is internally dimensioned and positioned such that a focused light spot is directed on the egg, and the light tube is dimensioned and positioned such that light reflected on the surface of the egg on the level of the light spot cannot directly reach the light sensors.

Abstract: An electronic device for identifying occurrence of hypotension and a method therefor are provided. The electronic device includes a housing, a user interface, a photoplethysmogram (PPG) sensor exposed through at least part of the housing, a motion sensor disposed in the housing, at least one processor operatively coupled with the user interface, the PPG sensor, and the motion sensor, and a memory operatively coupled with the at least one processor. The memory may store instructions which, when executed by the at least one processor, cause the at least one processor to, based on first data from the motion sensor indicating a change of a selected pattern, identify a blood pressure value based at least in part on second data from the PPG sensor, and based on the identified blood pressure value being lower than a first threshold, provide a notification through the user interface.

Abstract: In one embodiment, a data processing method comprises obtaining one or more first photoplethysmography (PPG) signals based on one or more first light sources that are configured to emit light having a first light wavelength corresponding to a green light wavelength; obtaining one or more second PPG signals based on one or more second light sources that are configured to emit light having a second light wavelength corresponding to a red light wavelength, one or more of the first light sources and one or more of the second light sources being co-located; generating an estimated heart rate value based on one or more of the first PPG signals and the second PPG signals; and causing the estimated heart rate value to be displayed via a user interface on a client device.

Abstract: Technology for a wearable heart rate monitoring device is disclosed. The wearable heart rate monitoring device can include a heart rate sensor operable to collect sensor data, a modulator operable to generate a modulated signal that includes the sensor data, a housing configured to engage a body feature or surface in a manner that allows for heart rate detection, and a communication module configured to transmit the sensor data in the modulated signal to a mobile computing device via a wired connection that is power limited. The mobile computing device is typically configured to demodulate the modulated signal in order to extract the sensor data.

Abstract: A bio-implantable device and a method for manufacturing the same. The bio-implantable device comprises a substrate section made of a polymer; a wire section formed on a surface of the substrate section; at least one microwire array comprising a cover section made of a polymer and attached to the surface of the substrate section, on which the wire section is formed, to protect the wire section and to expose at least one end of the wire section, thereby forming a pad section; a functioning section electrically connected to the pad section; and at least one package comprising an encapsulating section made of a polymer to closely abut the functioning section and the pad section. The encapsulating section extends and is attached to a part adjacent to the substrate section and to the pad section of the cover section. The package is connected to an end of a corresponding microwire array.

Abstract: The present disclosure relates to an implantable medical device with surface modifications to add additional surface area to the surface of the implantable device. The surface modifications create a rough, nanopatterned surface of the implantable medical device. The rough, nanopatterned surface can mimic a natural environment of an area of the subject's body, thereby reducing an immune foreign body response.

Abstract: Systems, devices, and methods for interfacing with biological tissue are described herein. An example electrode patch as described herein includes a flexible substrate and an electrode array arranged on the flexible substrate. The electrode array includes a plurality of electrodes, where each of the plurality of electrodes is formed of a hydrogel. Additionally, each of the plurality of electrodes defines a raised geometry. Additionally, an example system includes the electrode patch, which is configured to interface with a subject's skin, and an electronics module operably coupled to the electrode array.

Abstract: A modular electrocardiogram recording system includes a control patch, a wearable patch configured to be electrically connected to the control patch and to be worn on a user's skin, a handheld panel configured to be electrically connected to the control patch and to be hand held by the user. The wearable patch includes one or more sensing electrodes configured to sense a first ECG signal from the user.

Abstract: A hearing device includes: a first microphone configured to provide a first input signal; a first processor unit configured to provide a processed signal based on the first input signal to compensate for a hearing loss of a user of the first hearing device; a receiver configured to output sound based on the processed signal; and a first sensor configured to provide a first sensor signal for detecting an atrial fibrillation condition of the user. An electronic device includes: a communication interface configured to communicate with a hearing device; and a processing unit configured to obtain, via the communication interface, information associated with an atrial fibrillation condition of a user, the information comprising a sensor data transmitted from the hearing device and/or information indicating the atrial fibrillation condition detected based on the sensor data; wherein the accessory device is configured to output a signal indicative of the atrial fibrillation condition.

Abstract: Apparatuses and methods for extracting, de-noising, and analyzing electrocardiogram signals. Any of the apparatuses described herein may be implemented as a (or as part of a) computerized system. For example, described herein are apparatuses and methods of using them or performing the methods, for extracting and/or de-noising ECG signals from a starting signal. Also described herein are apparatuses and methods for analyzing an ECG signal, for example, to generate one or more indicators or markers of cardiac fitness, including in particular indicators of atrial fibrillation. Described herein are apparatuses and method for determining if a patient is experiencing a cardiac event, such as an arrhythmia.

Abstract: Disclosed are devices, a systems, and methods for determining the dipole densities on heart walls. In particular, a triangularization of the heart wall is performed in which the dipole density of each of multiple regions correlate to the potential measured at various locations within the associated chamber of the heart.

Abstract: Methods and apparatuses for detecting and characterizing seizures are described. In some embodiments, the methods and apparatuses include collecting an electrical signal from one or more electrodes disposed on the head or scalp of a patient and processing the electrical signal to determine the dynamics of a seizure event.

Abstract: A system that executes a process for mapping cardiac fibrillation and optimizing ablation treatments. The process, in some embodiments, includes: positioning a two dimensional electrode array to several locations in a patient's heart and at each location, obtaining a conduction velocity and a cycle length measurement from at least two local signals in response to electrical activity in the cardiac tissue. In some embodiments, a regional wavelength is calculated by multiplying the local conduction velocity with the local minimum cycle length. The system can then create a wavelength distribution map that identifies the location of the drivers in the heart. In certain embodiments, the system uses variability of conduction velocity and cycle length in an area to determine the driver type. In some embodiments, the system calculates average distance of drivers to non-conductive tissue boundaries. The system then selects ablation placements that maximize treatment efficacy while minimizing tissue damage.

Abstract: A handheld device for sonifying electrical signals obtained from a subject is provided. The device can utilize at least one of several operations including (but not limited) digitizing signals from electrodes, adjusting the signals based on accelerometer input, filtering the signals, conditioning the signals according to conditioning parameters, modulating the signal according to sound synthesis parameters, and generating sound from the representations of the signals to accomplish sonification. The device can include an analog-to-digital (A/D) converter to digitize the one or more electrical signals and a processor that receives the one or more digitized electrical signals and produces a representation of an acoustic signal. The device further includes a speaker system that sonifies the representation of the acoustic signal.

Abstract: Systems and methods are provided for evaluating infranodal pacing is applied to a patient. Electrocardiogram (ECG) data representing the pacing is obtained from a set of electrodes as an ECG lead. A predictor value representing a frequency content a portion of the ECG lead is extracted. A fitness parameter is determined for the pacing from at least the predictor value. The fitness parameter represents a likelihood that the applied infranodal pacing will induce left ventricular dysfunction in the patient. The fitness parameter is displayed to a user at an associated display.

Abstract: A method and device allowing a physiological signal, typically representative of brain activity, to be transcribed in the form of sensory signals perceptible to a human user, typically acoustic signals is provided. For this purpose, a physiological signal is acquired and then analysed in such a way as to detect therein patterns that are then parameterised in the time domain. One or more parameters of these patterns are used to determine one or more parameters of the generated sensory signals and/or to determine one or more parameters of temporal envelopes used to modulate the sensory signals. This method and device can be applied, in particular, to neuro-acoustic transduction.

Abstract: In some embodiments, the present invention provides an exemplary inventive system that includes: an apparatus to record: individual's brain electrical activity, a physiological parameter of the individual, and iii) an environmental parameter; a computer processor configured to perform: obtaining a recording of the electrical signal data; projecting the obtained recording of electrical signal data onto a pre-determined ordering of a denoised optimal set wavelet packet atoms to obtain a set of projections; normalizing the particular set of projections of the individual using a pre-determined set of normalization factors to form a set of normalized projections; determining a personalized mental state of the individual by assigning a brain state; determining a relationship between: the physiological parameter, the environmental parameter, and the personalized mental state; generating an output, including: a visual indication, representative of the personalized mental state, and) a feedback output configured to af

Abstract: A method for monitoring neural activity responsive to a stimulus in a brain, the method comprising: a. applying a first stimulus to one or more of at least one electrode implanted in the brain, the first stimulus comprising a first plurality of bursts of stimulation, b. detecting high frequency oscillations (HFOs) between about 200 Hz and about 500 Hz due to neuronal activity at one or more of the at least one electrode implanted in the brain at least partially during application of the first stimulus; c. determining one or more waveform characteristics of the HFOs; and d. generating a second stimulus comprising a second plurality of bursts of stimulation, wherein one or more waveform characteristics of the second stimulus is dependent on the one of more waveform characteristics of the HFOs; and e. applying the second stimulus to one or more of the at least one electrode implanted in the brain.

Abstract: A medical device includes multiple electrodes and a processor. The multiple electrodes are coupled to a substrate attached externally to a patient and are configured to sense multiple respective electrical signals from an organ of the patient. The processor is configured to estimate two or more noise levels associated with the electrical signals sensed by two or more respective pairs of the electrodes, to select the electrical signals having a smallest noise level from among the two or more noise levels, and to provide only the selected electrical signals for analysis.

Abstract: Devices, systems, and methods herein relate to electromyography (EMG) that may be used in diagnostic and/or therapeutic applications, including but not limited to electrophysiological study of muscles in the body relating to neuromuscular function and/or disorders. Sensor assemblies and methods are described herein for non-invasively generating an EMG signal corresponding to muscle tissue where the sensor may be positioned directly on a surface of the muscle tissue including any associated membrane (e.g., mucosal, endothelial, synovial) overlying the muscle tissue. A sensor assembly may include one or more pairs of closely spaced, atraumatic electrodes in a bipolar or multipolar configuration. The first and second electrodes may be applied against a surface of muscle tissue (that may include a membrane overlying the muscle) and receive electrical activity signal data corresponding to an electrical potential difference of the portion of muscle between the electrodes.

Abstract: A biometric antenna device of the present invention includes: a conductor layer configured to face the measurement site for emitting and/or receiving the radio wave; and a dielectric layer mounted along a facing surface facing the measurement site of the conductor layer or of a base material mounting the conductor layer and extending in parallel with the conductor layer, the dielectric layer having a predetermined relative permittivity. The dielectric layer keeps a distance between an outer surface of the measurement site and the conductor layer constant, in a mounted state in which a second surface on a side opposite to a side of a first surface on a side along the conductor layer of the dielectric layer abuts on an outer surface of the measurement site.

Abstract: The present invention relates generally to medical imaging and, more particularly, relates to systems and methods for obtaining magnetic resonance (MR) images of tissues and organs (particularly of the heart) or parts thereof.

Abstract: A setup, imaging, and gating/tracking through holographic topography (S.I.G.H.T.) mapping system includes a mm-wave antenna array and a SIGHT computing device. The mm-wave antenna array is configured to transmit a first plurality of mm-wave signals directed toward a patient positioned on a treatment device, receive a second plurality of mm-wave signal reflected by the patient and the treatment device, and generate at least one output signal based on the second plurality of mm-wave signals. The S.I.G.H.T. computing device includes a processor and a memory coupled to the processor. The S.I.G.H.T. computing device is configured to receive the at least one output signal from the mm-wave antenna array and to process the at least one output signal to generate at least one of: i) a position of a patient relative to the treatment device and ii) a reconstructed image of the patient.

Abstract: Systems and methods are described herein for use in predicting impedance values or responses in a three-dimensional space. Broadly, an impedance potential field and its measurement characteristics is modeled in an impedance model such that an impedance measurement may be estimated for any location within the impedance potential field. The impedance model may evolve over time based on actual impedance measurements of electrodes located in the three-dimensional space. Initially a plurality of patch electrodes to provide an impedance field to a three-dimensional space while electrodes disposed in the impedance field measure impedances. While each patch is driven, a number of independent impedance fields exist between the non-driven patches. These independent impedance potential fields may be estimated and mapped to impedance measurements of the electrode(s) at locations(s) within the impedance field to model the impedance field.

Abstract: Medical devices and methods for making and using medical devices are disclosed. An example electrophysiology medical device may include a catheter shaft including a distal end portion and a sensing assembly having three or more terminals. The sensing assembly includes one or more current-carrying electrodes and one or more sensing electrodes. The one or more current-carrying electrodes, the one or more sensing electrodes, or both includes a mini-electrode. The mini-electrode is disposed on one of the other electrodes. The medical device may also include a controller coupled to the sensing assembly.

Abstract: A guidance system for assisting with the insertion of a needle into a patient body utilizing ultrasound imaging or other suitable imaging technology. The guidance system can include an imaging device including a probe for producing an image of an internal body portion target, such as a blood vessel. One or more sensors can be included with the probe. The sensors can sense a detectable characteristic related to the needle, such as a magnetic field of a magnet included with the needle. The system can include a processor that uses data relating to the sensed characteristic to determine a 3-D position of the needle. The system can include a display for depicting the position of the needle. A needle assembly including a hub, cannula, and magnetic element is also disclosed, wherein a magnetic axis of the magnetic element is configured to be coaxially aligned with the needle cannula.

Abstract: A method includes receiving, from a probe that includes electrodes and is positioned inside a cavity in an organ of a patient, (i) proximity signals indicative of proximity of the electrodes to a wall of the cavity, and (ii) position signals indicative of positions of the electrodes within the cavity. Based on the proximity signals and the position signals, at least a portion of a volume of the cavity is represented by a sphere model including multiple spheres. A direction is identified along which one or more spheres are larger than one or more surrounding spheres by at least a given factor. Based on the indicated direction, a location of an opening in the wall of the cavity is estimated and presented to a user.

Abstract: Provided herein are systems and methods for use in identifying location of electrodes of a catheter within a three-dimensional space. The systems and methods initially predict locations of physical electrodes and/or physical magnetic sensors of the catheter in the three-dimensional space. Impedance and/or magnetic responses are predicted for the predicted locations. Actual measurements/responses (e.g., measured responses) are then obtained for the physical electrodes and/or physical sensors. Based on the predicted responses and the measured responses, the systems and methods generate calculated locations of electrodes and/or sensors in the three-dimensional space. The systems and method utilize information from both the predicted responses and the measured responses to produce the calculated locations, which may have an accuracy that is greater than locations produced by either the predicted responses or the measured responses.

Abstract: An electrical impedance tomography (EIT) device (30) with an electrode array (33), with a measured value acquisition and feed unit (40), with a computing/control unit (70) and with a data input unit (50). The computing/control unit (70) coordinates the operation and the data acquisition of EIT data (3) and is configured to identify a heart region.

Abstract: Provided are a method and an apparatus for determining a breathing status of a person using a depth camera. The method of determining a breathing status of a person using a depth camera may include acquiring a depth map by photographing one side of a person using a depth camera, extracting a region of the person by separating a background from the acquired depth map, extracting a breathing region from the extracted region of the person, obtaining a depth value for each point of the extracted breathing region for a preset time, and determining a breathing status including a volume of breathing and the number of the breathings by analyzing the obtained depth value. Therefore, it is possible to accurately determine the breathing status of the person in a non-contact manner.

Abstract: Various embodiments of the present technology present a structural foundation for respiratory analysis of turbulent exhale flows through a technique called Thin Medium Thermal Imaging (TMTI). TMTI is a respiration monitoring method that uses a thin medium and thermal imaging to sense breathing activity. This technique is presented as an alternative to existing non-contact methods of respiratory analysis. As with all non-contact methods, remote monitoring of patients' respiratory behaviors preserves patient comfort. However, unlike other respiratory monitoring methods, the TMTI method monitors respiration directly, and can therefore provide more respiratory information than other non-contact methods. Various embodiments may make use of different medium materials, different measurement setups, additional thermal imaging cameras and sensors, and setups with entertainment media such as Virtual Reality (VR).

Abstract: A foot sensor alarm for wheelchairs, detects if a wheelchair occupant's foot has fallen off of a wheelchair footrest. The sensor and alarm make a wheelchair occupant or care giver aware that a foot has fallen off of one or more of the footrests. Sensors may include contact closure sensors, with snap-action switches or magnetically actuated reed switches can be used. Battery-operated window alarms with piezoelectric sound emitters send out vibratory or audio sounds as alarms. An occupancy sensor seat pad is used to power up the alarm system. A flashing light emitting diode can be wired in parallel with each sound emitter to provide a visual alarm as well.