Abstract: The invention relates to a transponder system having at least one passive transponder, which has a resonant circuit having a variable resonant frequency, and having a readout device, wherein the readout device is designed to modify a frequency of the readout signal to the variable resonant frequency of the resonant circuit. The invention additionally relates to a method for readout of a passive transponder, which has a resonant circuit having a variable resonant frequency.

Abstract: This invention discloses a blood pressure measurement device including a cuff having a bladder wrap around an object to be measured, a MEMS pump for inflating the bladder with air, a pressure sensor for monitoring the pressure in the bladder, and a microcontroller for controlling the pressure sensor to continuously receive pressure signals during the process of inflating the bladder, converting the pressure signals into blood pressure values, and controlling a drive voltage level of the MEMS pump to maintain an air inflation speed of the MEMS pump in a predetermined inflation speed range. The invention further discloses a method for controlling a fixed frequency change of the blood pressure measurement device.

Abstract: The proposed technology relates to a method for indicating a risk for coronary artery disease. A sound recording is obtained (100) covering a plurality of heartbeats, a plurality of heart sounds are identified (200) in the sound recording, and a plurality of segments are obtained (300) from the sound recording. A frequency power measure is determined (400) based on the signal strength of a first frequency window of a period in the diastole, an amplitude of the fourth heart sound is determined (500) based on the plurality of heart sounds and the plurality of segments, and an indication of a heart rate variability is determined (600) based on the plurality of heart sounds. The indication of the risk for coronary artery disease is then determined (700) based on the frequency power measure, the amplitude of the fourth heart sound, and the indication of the heart rate variability.

Abstract: An information processing apparatus is described. This determines a physiological parameter of an individual, the apparatus comprising: image circuitry configured to obtain a series of images of a skin exposed region of the individual; and processing circuitry configured to perform a periodogram on at least one of the red, green and blue channels of the skin exposed region of the series of images to obtain frequency components of the channel; and to determine the physiological parameter based on the periodogram.

Abstract: The present invention relates to fields of medical technology and camera-based vital signs monitoring using remote photoplethysmography (rPPG). A Device (10) for determining a physiological parameter of a subject (20) is presented, the device comprising: an interface (11) for receiving image data of a scene, said image data comprising a time-sequence of image frames; and a processor (12) for processing said image data, wherein the processor is configured to perform the steps of: determining, for each of said image frames, a first statistical parameter value indicative of a statistical dispersion of pixel values of said image frame (202); concatenating said first statistical parameter values over time based on the time-sequence of the corresponding image frames to obtain a first candidate signal (203); extracting a physiological parameter of the subject based on said first candidate signal (204). The present invention further relates to a corresponding system (1) and method (200).

Abstract: The present invention is provided with a noninvasive intracranial pressure measuring device for measuring an intracranial pressure of a person, includes goggles worn on the face of the person; a first probe provided on the goggles, and emitting ultrasonic waves to an optic nerve sheath so as to measure a diameter of the optic nerve sheath; a second probe provided on the goggles, and emitting ultrasonic waves to the ophthalmic artery so as to measure a pulsatility index of the ophthalmic artery; and a controller for calculating the intracranial pressure on the basis of measured values received from the first probe and the second probe.

Abstract: In one embodiment, the invention relates to systems, methods, and apparatus relating to the detection of a neuropathy such as a periopertive neuropathy. In one embodiment, a wristband comprising a plurality of anodes and cathodes is used. The wristband can be a component in a electrode array that includes a plurality of reference or recording electrodes. The electrode array can be configured to stimulate and collect responsive signals from an ulnar, a median, radial and posterior tibial nerve. The simulation and signal collection can be performed on a continuous basis for time periods of interest such as a given perioperative time period using a monitoring device.

Abstract: A biosignal measurement device includes: a first chopper amplifier circuit that receives a biosignal detected by a measurement electrode contacting a living body, and is chopper-controlled based on a first control signal; and a controller that selectively performs one of a biosignal measurement mode operation for outputting the first control signal having a first frequency to the first chopper amplifier circuit and a test mode operation for outputting the first control signal having a different frequency from the first frequency to the first chopper amplifier circuit.

Abstract: An electrode for electrocardiogram (ECG) waveform measurement of the present disclosure is proposed. The present disclosure provides an electrode device capable of accurately measuring and monitoring an electrocardiogram of a person by maintaining a uniform amount of electric charge even when a contact area of the electrode changes due to vigorous physical activity such as walking or running, or moisture permeation due to ambient conditions or sweat released during exercise.

Abstract: A method includes assigning, to first voxels in a model of tissue of a chamber of a heart, respective first values of a parameter at respective locations on the tissue, the first voxels representing the locations, respectively. Some of the locations are on an endocardial surface of the tissue, and others of the locations are on an epicardial surface of the tissue. The method further includes assigning respective second values to second voxels in the model, a subset of which represent a portion of the tissue between the endocardial surface and the epicardial surface, by interpolating the first values. Other embodiments are also described.

Abstract: Systems and techniques for managing biological signals. In one implementation, a method includes receiving a cardiac biological signal that includes information describing events, determining a merit of each event based on one or more of a severity of a cardiac condition associated with the event and a quality of the event, and handling a subset of the events that meet a merit criterion. The subset can be handled for medical purposes.

Abstract: A system and method for facilitating a cardiac rhythm disorder diagnosis with the aid of a digital computer is provided. Cutaneous action potentials of a patient are recorded over a set period of time as ECG data and a difference between recording times of successive pairs of R-wave peaks are recorded as R-R intervals. A heart rate is associated with each time difference. An R-R interval plot of the ECG data is generated. A presence of a cardiac event is displayed by presenting a presence of sinus tachycardia or a presence of bradycardia via the R-R interval plot.

Abstract: A concentric ring electrode (CRE) is provided that can sense characteristics of an electric potential, such as its Laplacian, more accurately than previous systems. The disclosed system and methods can optimize estimates of the Laplacian based on potentials measured by the CRE's electrodes, and can optimize the geometry of the CRE, in particular the ring electrodes' radii. Given the CRE's geometrical configuration, the system estimates the Laplacian's dependence on the measured potentials by computing a null space of a matrix associated with a series expansion of the potential. The system determines coefficients for the dependence, wherein a first coefficient is between ?10 and 10 times, or between ?6.5 and ?7.5 times, a second coefficient. The system can optimize ranges for the radii by canceling at least one truncation term of the series expansion, estimating a higher-order truncation term as a function of the radii, and minimizing this estimated function.

Abstract: Long-term electrocardiographic and physiological monitoring over a period lasting up to several years in duration can be provided through a continuously-recording subcutaneous insertable cardiac monitor (ICM). The sensing circuitry and the physical layout of the electrodes are specifically optimized to capture electrical signals from the propagation of low amplitude, relatively low frequency content cardiac action potentials, particularly the P-waves that are generated during atrial activation. In general, the ICM is intended to be implanted centrally and positioned axially and slightly to either the left or right of the sternal midline in the parasternal region of the chest. Additionally, the ICM includes an ECG sensing circuit that measures raw cutaneous electrical signals and performs signal processing prior to outputting the processed signals for sampling and storage.

Abstract: A diagnostic system for recording auditory steady-state responses of a person comprises a) a stimulation unit for providing an acoustic stimulus signal to an ear of the person, and b) a recording unit for recording the auditory steady-state responses of the person origination from said acoustic stimulus signal, wherein the stimulation unit is configured to provide that the acoustic stimulus signal comprises a speech-like stimulus provided as a combination of a series of individual frequency-specific stimuli, each having a specified, e.g. predetermined, frequency bandwidth, presentation rate, amplitude and amplitude-modulation. The application further relates to a combined system comprising a diagnostic system and a hearing aid. The invention may e.g. be used for diagnostic instruments for verifying the fitting of a hearing aid.

Abstract: Disclosed are a method and device capable of diagnosing arrhythmia by a contactless method by using a UWB radar. The method for diagnosing arrhythmia using a UWB radar disclosed herein comprises: a step of extracting a radar signal corresponding to a heartbeat component, from radar signals received after being reflected from an examinee; a step of analyzing a frequency component of the radar signal corresponding the heartbeat component; and a step of determining if the examinee has arrhythmia, on the basis of the magnitude of the value of the ratio between the largest peak value and the second largest peak value which are included in the frequency component.

Abstract: Aspects of the present disclosure are directed to systems, apparatuses, and methods for detecting and correcting for magnetic field distortions within a magnetic field used for medical magnetic localization systems.

Abstract: A medical procedure system, including a medical instrument to be inserted into a body part, and including position-tracking transducers to provide position signals, a distal end, and at least one radiopaque marker, a position tracking sub-system to compute a position including at least one location and orientation of the distal end in a position-tracking sub-system coordinate frame responsively to the position signals, a fluoroscope to capture fluoroscopic images of an interior of the body part and the radiopaque marker(s), and a registration sub-system to render, to a display, the captured fluoroscopic images including at least one marker-image of the radiopaque marker(s), and at least one graphical representation indicative of the computed position of the distal end, receive user-alignment input aligning the graphical representation(s) with the marker-image(s), and register the position-tracking sub-system coordinate frame with a coordinate frame of the fluoroscope responsively to the received user-alignmen

Abstract: Active auscultation may be used to determine organ (e.g., lung or heart) characteristics of users. An acoustic or piezo-electric signal (e.g., a pulse, a tone, and/or a broadband pulse) may be projected into an animal (typically human) body or thorax. The signal interacts with the body, or lungs, and in some cases may induce resonance within the body/lungs. A resultant signal may be emitted from the body which may be analyzed to determine, for example, a lung's resonant frequency or frequencies and/or how the sound is otherwise absorbed, reflected, or modified by the body. This information may be indicative of lung characteristics such as lung capacity, a volume of air trapped in the lungs, and/or the presence of COPD.

Abstract: The disclosure relates to a system for measuring forces at different regions of the foot for the purpose of supporting medical treatment, improving sports performance and so on. It uses a plurality of force sensors arranged in zones wherein the plurality force sensors include sensors of different types. The system includes a transmitter that transmits data to a processing unit that receives and processes data to determine performance of an athlete or medical conditions in relation to locomotion.

Abstract: There is provided a wearable system for determining at least one movement property. The wearable system includes a head-mounted device including at least one movement sensor; a processor connected to the head-mounted device; and a display connected to the processor. The processor includes a medium having instructions stored thereon that when executed cause the processor to: obtain sensor data from the at least one movement sensor; determine at least one movement property based on the obtained sensor data; and display the at least one movement property on the display. There is also provided a method for displaying the at least one movement property.

Abstract: A wrist-wearable apparatus for detecting a fall of a wearer, the apparatus includes a device for detecting an acceleration of the apparatus or wearer and determining acceleration magnitude; a device for determining a change in angle of orientation of the apparatus or wearer; a device for detecting and/or determining gyroscope magnitude of the apparatus or wearer; a device for processing acceleration magnitude data and comparing such data with a threshold so as to determine if a potential fall has occurred; and a fuzzy logic device for analysing change in angle of orientation data and gyroscope magnitude data so as to categorise values of such data and, thereby, verify if a fall has occurred.

Abstract: A ground-truth data creation support system comprising: an input unit configured to input sensor data obtained by measurement with a sensor; a storage unit configured to store a code assigning model to assign codes associated with characteristics of sensor data to the sensor data and an activity inferring model to infer an activity of a person wearing the sensor based on the sensor data that has been assigned codes; a processing unit configured to infer an activity in a specific measurement time period of a person wearing the sensor, based on sensor data in the specific measurement time period, the code assigning model, and the activity inferring model; and an output unit configured to output the inferred activity in the specific measurement time period and codes assigned to the sensor data in the specific measurement time period.

Abstract: Sampling or removing interstitial fluid of a subject using an implantable access chamber and associated methods of use. An implantable access chamber can be configured to be inserted into tissue of a subject. The implantable access chamber can comprise a sensor arranged therein, wherein the sensor is configured to sense at least one analyte of interstitial fluid of the subject. The implantable access chamber can include a barrier portion defining a cavity. The barrier portion may be a material permeable to the interstitial fluid and occlusive to cells of the subject.

Abstract: Methods, systems, and devices are disclosed mouth-based biosensors and biofuel cells. In one aspect, an electrochemical sensor device for detecting analytes in saliva includes a substrate including an electrically insulative material, a first electrode disposed on the substrate at a first location, in which the first electrode includes a surface including a chemical agent (e.g., a catalyst or a reactant) corresponding to an analyte in saliva; and a second electrode disposed on the substrate at a second location separated from the first electrode by a spacing region, the first and second electrodes capable of sustaining a redox reaction involving the chemical agent and the analyte to produce an electrical signal, such that, when the device is present in the mouth of a user and electrically coupled to an electrical circuit, the device is operable to detect the analyte in the user's saliva.

Abstract: The present invention relates generally to systems and methods for measuring an analyte in a host. More particularly, the present invention relates to systems and methods for transcutaneous measurement of glucose in a host.

Abstract: A wearable device and method for noninvasive and continuous monitoring of blood glucose level in a patient. The device may include a unilateral permanent magnet generating a static magnetic field to a target area under the skin of the patient, the target area comprising blood vessels and tissue surrounding the blood vessels. The device may also include a transmitter delivering a radiofrequency (RF) field to the target area to excite proton nuclear spins in the target area, wherein at least a portion of the transmitter is positioned between the magnet and the skin. The device may further include a sensor detecting a RF signal from the excited proton nuclear spins in the target area. A processing arrangement may receive data corresponding to the detected RF signal from the sensor and determine a level of blood glucose in the patient based on the data.

Abstract: Disclosed herein is a physiological measurement system that can automatically adjust the number of wavelengths used based on the quality of a sensor signal that is reflective of an optical radiation detected at a sensor after tissue attenuation. The signal quality is examined to determine if it is sufficient to support the use of a full set of wavelengths. If it is determined to be insufficient to support the full set, a reduced number of wavelengths is used.

Abstract: An arousal state estimation apparatus includes: a feature value acquisition unit acquiring a plurality of types of feature values regarding an arousal state of a human body from physiological data obtained by measuring the human body; and an estimation unit estimating the arousal state of the human body by using a principal feature value that is some type among the plurality of types of feature values. In a case where the principal feature value is unacquirable due to a defect of the physiological data, the estimation unit estimates the arousal state of the human body by using a different type of feature value than the principal feature value among the plurality of types of feature values acquired by the feature value acquisition unit instead of the unacquirable principal feature value.

Abstract: Wearable devices and methods for determining a psycho-emotional state of a user are described herein. A wearable device for determining a psycho-emotional state of a user may include a plurality of sensors, an evaluation and testing module, and a processing module. The plurality of sensors may be configured to measure physiological parameters of the user. The evaluation and testing module may be configured to evaluate and test the user. The processing module may be configured to analyze the physiological parameters of the user during one of the evaluation or the testing. The processing module may be further configured to determine the psycho-emotional state of the user based on the analysis. The processing module may be configured to determine changes in the psycho-emotional state of the user. The processing module may be further configured to provide recommendations based on the changes in the psycho-emotional state of the user.

Abstract: Various embodiments provide systems and methods for identifying impairment using measurement devices.

Abstract: Disclosed is a method for identifying driving fatigue based on a CNN-LSTM deep learning model including: collecting electroencephalograph signals of a subject during simulated driving; randomly issuing an operating command during simulated driving, and dividing the electroencephalograph signals into fatigue data and non-fatigue data according to a reaction time for the subject to complete the operating command; performing band-pass filtering and mean removal preprocessing on the electroencephalograph signals, and respectively extracting N minutes of fatigue electroencephalograph signal data and N minutes of non-fatigue electroencephalograph signal data to be detected; performing independent component analysis on the electroencephalograph signal data to remove interference signals; establishing a CNN-LSTM model and setting network parameters of the CNN-LSTM model; transmitting the electroencephalograph signal data with interference signals removed to a CNN network for feature extraction; and reshaping data of

Abstract: Various embodiments provide systems and methods for identifying impairment using measurement devices.

Abstract: Various embodiments provide systems and methods for identifying impairment using measurement devices.

Abstract: The dermatoscope attachment for mobile devices is a dermatoscope, which may be removably attached to a mobile device, such as a smartphone or the like, and includes an at least partially hollow housing having opposed front and rear faces with, respectively, a front window and a rear viewing port. An optical path is defined between the front window and the rear viewing port, and focusing optics are mounted within the at least partially hollow housing along the optical path. A light source is also mounted within the at least partially hollow housing for selectively projecting a light beam through the front window. A spring-biased clip is mounted to an upper end of the at least partially hollow housing for releasably holding a mobile device against the rear face of the at least partially hollow housing. Optionally, a rear window may be mounted in the rear viewing port.

Abstract: The purpose of the present invention is to develop a method or system for measuring the skin condition easily and accurately. The method for determining the skin condition based on the thermal sensitivity in the skin was perfected by discovering that the skin condition, especially the skin barrier function, can be determined based on the thermal sensitivity in the skin.

Abstract: Methods and apparatuses for detecting cancerous tissue are provided. A target area comprising suspected tissue is illuminated with infrared light. Reflected light from the target area is received and filtered by a plurality of infrared optical filters with overlapping pass-bands. The filtered reflected light from each of the plurality of optical infrared filters is directed onto at least one optical sensor, and data generated by the at least one optical sensor and corresponding to the filtered reflected light from each of the plurality of optical infrared filters is provided to a controller. The controller calculates a vector corresponding to the target area from the data, and compares that vector to a plurality of vectors respectively corresponding to different types of cancerous tissue. The controller determines based on a result of the comparison whether the target area includes at least one type of cancerous tissue.

Abstract: Provided are embodiments of a posture measuring device for determining the forward head posture of a patient. Forward head posture (FHP) is the anterior positioning of the cervical spine that is caused by sleeping with the head elevated, extended use of computers and cellphones, lack of developed back muscle strength and lack of nutrients such as calcium. This deformation is associated with headaches, neck pain, thoracic spine pain and symptoms of pain, parastesia or numbness in the upper extremities. The device of the disclosure provides a numerical measurement of the displacement of the skull from the vertical as defined by a datum between the two most posterior points of a patient's spine.

Abstract: Embodiments for intelligent monitoring of a health state of a user by a processor. A health state of a user may be learned while engaged in one or more activities associated with a computing device. One or more mitigating actions may be identified and recommended to implement by the user to minimize one or more possible negative impacts upon the health state of the user while engaged in the one or more activities associated with the computing device.

Abstract: Disclosed is a postprandial glucose-measuring device for preventing the development of or reversing T2D. Included are methods for using the device as well as better use for invasive and noninvasive glucose meters. Further disclosed are novel exercise-sensitizing compositions useful for managing blood glucose levels in Type-2 diabetics with minimal risk of hypoglycemia. The disclosed glucose meters allow a user to also measure exercise and meal size—all with relatively instant feedback—more effectively than having to track the complexity posed by labels, glycemic index and calories. Also disclosed is integration of glucose-measuring devices with smartphones and health monitoring technology to make possible safe and effective interpretation of postprandial glucose readings by a patient to control or reverse Type-2 diabetes.

Abstract: Systems, devices, and methods are provided for reducing a risk of unintentional falls in a subject that is at risk for falls. The device includes a sensor and a stimulator. The sensor is configured to be positioned adjacent a body portion of the user that changes orientation when the user sits and stands. The sensor is also configured to emit an activation signal when the user stands and to emit a deactivation signal when the user sits or lies down. The stimulator is in communication with the sensor and is configured to be positioned adjacent one of a calf and a lower back of the user. The stimulator is configured to vibrate at a frequency that stimulates proprioceptors of the user without inducing muscle contractions upon receipt of the activation signal from the sensor and to cease vibration upon receipt of the deactivation signal from the sensor.

Abstract: Methods and devices provide physiological movement detection, such as breathing, cardiac and/or gross body motion, with active sound generation using electronic processing device(s). The processor may control producing, via a speaker coupled to the processor, a sound signal in a user's vicinity. The processor may control sensing, via a microphone coupled to the processor, a reflected sound signal. This reflected sound signal is a reflection of the sound signal from the vicinity or user. The processor may process the reflected sound, such as by a demodulation technique. The sound signal may be produced as a dual tone frequency modulation continuous wave signal. Evaluation of detected movement information may determine sleep states or scoring, fatigue indications, subject recognition, chronic disease monitoring/prediction, and other output parameters.

Abstract: A method and device for detecting a sleep state by heart-rate and movement data. By neural network software, a sleep state is detected using as input data movement data (move_count) and data derived from heart-rate data and/or data derived from inter-beat interval data such as (MAD) and respiration data (RESP). At least a portion of the variables (HRD, MHR, MAD, Resp, GRD) derived from the heart-rate data/inter-beat interval data are further modified by one, most preferably 2-4, artificial average functions and the cumulative sleep time is one input datum.

Abstract: Devices are provided to automatically inject drugs or other payloads into or beneath skin. These devices include an injector configured to drive a hollow needle into the skin and subsequently to deliver the payload through the hollow needle. Applied suction acts to draw blood from the puncture formed in the skin through the hollow needle, into the device, and to a sensor, blood storage element, or other payload. In some examples, the blood is drawn through the hollow needle when the hollow needle is penetrating the skin. In some examples, these devices are additionally configured to retract the hollow needle from the skin and/or to perform some other functions. These devices can be wearable and configured to automatically access blood or deliver a payload into skin, for example, to operate at one or more points in time while a wearer of a device is sleeping.

Abstract: The present application relates to the field of alcohol detection. The face-recognizable wall-mounted alcohol detector according to the present application comprises an enclosure, an alcohol detecting module, and a breathing cup. The enclosure is provided with a receiving chamber therein, and has a first side and a second side opposite to each other, the first side having a connection opening in communication with the receiving chamber, an air venting passage being provided on the side wall of the connection opening, and the second side having a dock interface in communication with the receiving chamber; the alcohol detecting module has a case on which an air detection inlet is provided on the case of the alcohol detecting module; the breathing cup has an air outlet at one end, a breathing opening at the other end, and an air vent on the side wall thereof.

Abstract: Various embodiments provide systems and methods for identifying impairment using measurement devices.

Abstract: An apparatus for generating a metabolism model may include a processor configured to obtain a predetermined number of bio-information profiles from a bio-sensor, extract a representative bio-information profile from the obtained predetermined number of bio-information profiles, and generate the metabolism model for correcting an error of the bio-sensor by using the extracted representative bio-information profile.

Abstract: A system, method, and smartwatch for measuring hydration of a user. One or more optical and conductivity tests for a user are performed utilizing a smartwatch. Measurements are compiled from the testing. The measurements are analyzed to generate hydration information regarding the user.

Abstract: A method for determining the hydration status of a person prompts the person to breathe while in a first postural position during which the method measures a first heart rate variability (HRV) value. The person is prompted to change to a second postural position, and the method measures a second HRV value. A difference between the first HRV value and the second HRV value is a daily score. The daily score is subtracted from a baseline to obtain a hydration score. In certain embodiments, the person is requested to respond to a plurality of subjective questions. The method processes the subjective responses and the daily score to determine whether the person is adequately hydrated. In certain embodiments of the method, the person is requested to identify the color of the person's urine. The identified color is processed with the daily score and the subjective responses to determine hydration.

Abstract: A method of assessing surgical margins is disclosed. The method includes, subsequent to administration of a compound configured to induce emissions of between about 600 nm and about 660 nm in cancerous tissue cells, positioning a distal end of a handheld, white light and fluorescence-based imaging device adjacent to a surgical margin. The method also includes, with the handheld device, substantially simultaneously exciting and detecting autofluorescence emissions of tissue cells and fluorescence emissions of the induced wavelength in tissue cells of the surgical margin. And, based on a presence or an amount of fluorescence emissions of the induced wavelength detected in the tissue cells of the surgical margin, determining whether the surgical margin is substantially free of at least one of precancerous cells, cancerous cells, and satellite lesions. The compound may be a non-activated, non-targeted compound such as ALA.