Abstract: A pulse wave detecting device includes a sensor section and a control unit. The sensor section is rotatable about a first axis and is rotatable about a second axis. The control unit determines a rotation angle about the first axis based on DC components of pressure detecting elements included in element rows. Then, in a state where the sensor section is controlled to the optimal pitch angle, the sensor section is pressed against the body surface, and a pulse wave is detected based on pressure signals detected by pressure detecting elements in this state, and vital information is calculated based on the detected pulse wave.

Abstract: The invention discloses an apparatus (2), a system (1) and a method (100) for characterization of vessels and for vessel modeling. The cross sectional area (A1) of the vessel is derived from pressure measurements (p1, p2) obtained by an instrument (3) from within the vessel. When multiple cross sectional areas (A1, A2) are derived for multiple reference positions (r1, r2) based on pressure measurements (p1, p2, p3) along the vessel, a representation (20, 30) of the vessel can be rendered, without requiring any imaging modality. Furthermore, the effect of the pulsatile blood flow on the elasticity of the vessel walls can be visualized, supporting assessment of a stenosis or an aneurysm formation along the vessel.

Abstract: A pressure pulse wave detector includes: a pressing member which includes a pressing face in which element arrays each including pressure detecting elements arranged in one direction are arranged in a direction intersecting with the one direction; a pressing mechanism which presses the pressing face against a body surface of a living body; a rotation driving mechanism which rotates the pressing face around each of two axes which are perpendicular to a pressing direction of the pressing face pressed by the pressing mechanism and include a first axis extending in the one direction and a second axis perpendicular to the one direction; a support member which supports the pressing mechanism, the rotation driving mechanism and the pressing member; a housing which houses therein the support member; and a movement mechanism which moves the support member in the one direction inside the housing.

Abstract: A pulse wave detector includes: a sensor unit which includes a plurality of element arrays, each including pressure detecting elements arranged in one direction, the element arrays being arranged in a direction perpendicular to the one direction; a pressing part which is configured to press the sensor unit to a body surface of a living body in a state where the one direction intersects with an extension direction of an artery under the body surface; a rotation mechanism which is configured to rotate the sensor unit about a first axis extending in the one direction; and a rotation drive unit which is configured to drive the rotation mechanism. The rotation mechanism, the pressing part and the sensor unit are arranged in this order in a pressing direction of the pressing part.

Abstract: A pulse wave detection method includes: increasing a pressing force of a pressing member for pressing a strain sensor fixed thereto against a body surface, the flexible strain sensor having a plurality of strain detection elements arranged on a substrate; determining a deformation stop timing at which deformation of a detection face of the strain sensor has been stopped based on the strain detection signal detected by each of the plurality of strain detection elements in a pressure raising process in which the pressing force is increased; setting a level of the strain detection signal detected at the deformation stop timing as a reference level; calibrating the first strain detection signal detected after the deformation stop timing based on the reference level; and generating a pressure signal from the calibrated first strain detection signal.

Abstract: A pulse wave detector includes: a pressure pulse wave sensor that includes: sensor chips each having an element row including plural pressure detection elements arranged in one direction; a substrate to which the sensor chips are fixed; a protection member for protecting the substrate and the sensor chips; and a filling material being filled in a space between detection faces of the sensor chips on which the pressure detection elements are formed and opening sections provided in the protection member, the opening sections being disposed on a side opposite to a side of the substrate to which the sensor chips are fixed and being disposed at positions opposed to the detection faces in a vertical direction perpendicular to the detection faces, and a rotation mechanism for rotating the pressure pulse wave sensor around a direction orthogonal to each of the one direction and the vertical direction.

Abstract: Example embodiments associated with characterizing a sample using NMR fingerprinting are described. One example NMR apparatus includes an NMR logic that repetitively and variably samples a (k, t, E) space associated with an object to acquire a set of NMR signals that are associated with different points in the (k, t, E) space. Sampling is performed with t and/or E varying in a non-constant way. The NMR apparatus may also include a signal logic that produces an NMR signal evolution from the NMR signals and a characterization logic that characterizes a tissue in the object as a result of comparing acquired signals to reference signals. Example embodiments facilitate distinguishing diseased tissue from healthy tissue based on tissue component fractions identified using the NMR fingerprinting.

Abstract: Blood pressure detection signal sampling and compensation methods and apparatuses, and an example blood pressure signal collection system are described. One example method described includes controlling an electrocardiogram (ECG) sampling module and a photoplethysmogram (PPG) sampling module to simultaneously sample a standard periodic signal. Sampling frequencies and sampling end times are separately obtained. A sampling start time and a sampling frequency of the ECG sampling module or the PPG module is then compensated so that a sampling frequency deviation is less than a preset frequency threshold and a sampling end time difference is less than a preset time threshold.

Abstract: As a non-limiting example, various aspects of this disclosure provide embodiments of real-time heartbeat events detection using low-power, low-noise motion sensor.

Abstract: Method for providing a description, graphical representation, and a graphical identification of specific operating patterns of quasi-periodic cyclic systems, such as, but not limited to, reciprocating combustion engines, rotary machines, or biological organs such as the heart is disclosed. The disclosure also relates to a method for calculating an indicator evaluating the heart health or condition of an individual, as well as for diagnosing and issuing prognoses relating to the functionality, pathology, or standard of health of a machine or organism equipped with a motor or organ that operates cyclically, and to provide a description, a compact graphical representation, and a graphical identification of specific operating patterns of dynamic systems, for example economic systems such as the stock market.

Abstract: In one implementation, a device detects multiple vital signs from sensors such as a digital infrared sensor, a photoplethysmogram (PPG) sensor and at least one micro dynamic light scattering (mDLS) sensor, and thereafter in some implementations the vital signs are transmitted to, and stored by, an electronic medical record system.

Abstract: A method for measuring a physiological signal is provided, including the steps of: receiving a video and performing face detection for each image frame thereof; performing photo-plethysmography (PPG) calculation and analysis on first face image for first image frame to obtain first PPG information of first regions and second PPG information of corresponding second regions; determining at least one region-of-interest (ROI) and one noise reference region according to the first PPG information and the second PPG information; generating ROI information and noise reference region information based on the ROI and the noise reference region; and performing the PPG calculation and analysis on the ROI and the noise reference region of the second face image of each subsequent second image frame and generating corresponding third PPG information; and counting the PPG information of all the image frames to calculate a measured value of a physiological signal.

Abstract: Systems and methods for performing a surgical procedures on the spine are described, including a spinal access system. The spinal access system may have a stimulation cannula with a stimulation electrode at a distal end. The stimulation cannula is configured to be advanced along an access path toward a patient's lumbar spine while coupled to a nerve monitoring system configured to detect nerves in the path of the stimulation cannula by stimulating the stimulation electrode at the distal end of the stimulation cannula and monitoring an electrical current level determined after a neuro-muscular onset response is detected via one or more return electrodes positioned on the patient's leg.

Abstract: Devices and systems as described herein is configured to sense a signal, such as a signal from an individual. In some embodiments, a signal is a magnetic field. In some embodiments, a source of a signal is an individual's organ, such as a heart muscle. A device or system, in some embodiments, comprises one or more sensors, such as an array of sensors configured to sense the signal. A device or system, in some embodiments, comprises a shield or portion thereof to reduce noise and enhance signal collection.

Abstract: The present invention provides a system and a method for measuring physiological signal. The system includes a plurality of electrodes and a measurement apparatus. A plurality of first electrodes of the electrodes are attached on a first area of a subject. A plurality of second electrodes of the electrodes are attached on a second area of the subject. The measurement apparatus is coupled to the electrodes and performs testing on the first electrodes and the second electrodes to obtain a plurality of testing results. The measurement apparatus selects one of the first electrodes as a first measuring electrode and selects one of the second electrodes as a second measuring electrode according to the testing results. The measurement apparatus measures a physiological signal of the subject through the first measuring electrode and the second measuring electrode.

Abstract: In embodiments, a chassis of a computing device may include an external surface that is accessible by a user of the computing device, and an internal surface opposite the external surface. The chassis may further include a first electrode and a second electrode within the external surface. The first electrode may generate a first signal related to a first biosignal of the user of the computing device, and the second electrode may generate a second signal related to a second biosignal of the user. Other embodiments may be described and/or claimed.

Abstract: An electrode array configured to be inserted at least partially into a blood vessel including: a self-expandable array body; at least two axially spaced-apart electrodes connected to said array body; wherein at least part of said array body expands to an open conformation and pushes at least one selected electrode against a blood vessel inner tissue with a force designed not to damage venous tissue.

Abstract: A phase singularity identification system includes: a signal reception unit for receiving a single activity electrogram signal measured through a single-electrode catheter at a particular point of a cardiac muscle cell; a phase calculation unit for calculating a phase from the received single activity electrogram signal; and a phase singularity identification unit for identifying through the calculated phase if the particular point of the cardiac muscle cell is a phase singularity. Accordingly, it is possible to identify the phase singularity of a rotor by using a single-electrode catheter rather than a multi-electrode catheter, thereby significantly reducing time required and costs spent in comparison with prior art, and it is possible to accurately identify the phase singularity of the rotor, thus the system can be used for a radiofrequency electrode catheter ablation procedure for cardiac arrhythmia treatment.

Abstract: A device including an array of electrodes generates one or more electrical signals from a user, extracts one or more noise signals, and generates one or more de-noised electrical signals upon processing the electrical signal(s) with the noise signal(s). The array of electrodes is coupled to a surface of the device, where the device also includes force sensors in mechanical communication with the surface for detecting user weight and other forces. The device can be configured to generate electrical signals from different subportions of the array of electrodes and to extract noise signals from different subportions of the array of electrodes, where the subportion(s) for electrical signal generation may or may not overlap with the subportion(s) of electrodes for noise signal extraction.

Abstract: An improved external medical electrode demonstrates uniform current distribution across its face, improved recovery time after delivering a defibrillation charge and improved ability to deliver pacing charges over extended periods. An ellipsoid, metal charge spreading layer is connected to a hydrogel layer by a carbon-containing polymer layer having on its hydrogel-contacting surface at least two layers of silver chloride-coated silver. A hyper-hydrosis inducing agent applied to the hydrogel layer on surface for contacting skin can substantially decrease skin impedance for improved operation.

Abstract: The present disclosure relates to a wearable monitor device and methods and systems for using such a device. In certain embodiments, the wearable monitor records cardiac data from a mammal and extracts particular features of interest. These features are then transmitted and used to provide health-related information about the mammal.

Abstract: The present disclosure provides an exercise guidance method and an exercise guidance device. The method includes receiving myoelectric parameters of a user collected by a plurality of myoelectric sensors, determining a current exercise state of the user based on myoelectric parameters, generating exercise guidance information based on the current exercise condition, and sending the exercise guidance information to a terminal.

Abstract: Systems and methods are provided for generating a protocol independent image. A deep learning generative framework learns to recognize the boundaries and classification of tissues in an MRI image. The deep learning generative framework includes an encoder, a decoder, and a discriminator network. The encoder is trained using the discriminator network to generate a latent space that is invariant to protocol and the decoder is trained to generate the best output possible for brain and/or tissue extraction.

Abstract: Collectively, the electrical signal(s) and the force-associated signal(s) generated by sensors of the device are processed by a computing subsystem with electronics and architecture configured for sensor fusion and extraction of composite features indicative of cardiovascular health states. In one or more embodiments, the device generates electrocardiogram (ECG) signals, impedance plethysmogram (IPG) signals, ballistocardiogram (BCG) signals, and weight measurements through an interface with feet of a user. Computing subsystem components fuse the ECG, IPG, and BCG data to efficiently generate analyses of cardiovascular health of the user, in relation to various parameters related to temporal components of cardiac phases, force and volume-associated parameters, and other relevant parameters. The parameters are regularly collected and analyzed to monitor user cardiovascular health and trigger preventative health interventions.

Abstract: A system for ultrasound interrogation of a lung includes a memory, an electromagnetic (EM) board, an extended working channel (EWC), an EM sensor, a US transducer, and a processor. The memory stores a three dimensional (3D) model, a pathway plan for navigating a luminal network. An EM board generates an EM field. The EWC is configured to navigate the luminal network of a patient toward a target following the pathway plan and the EM sensor extends distally from the EWC and senses the EM field. The US transducer extends distally from a distal end of the EWC and generates US waves and receives US waves reflected from the luminal network and the processor processes the sensed EM field to synchronize a location of the EM sensor in the 3D model, to process the reflected US waves to generate images, or to integrate the generated images with the 3D model.

Abstract: A system for ultrasound interrogation of a lung including a memory, an electromagnetic (EM) board, an extended working channel (EWC), an EM sensor, a US transducer, and a processor. The memory stores a three dimensional (3D) model and pathway plan for navigating a luminal network. The EM board generates an EM field. The EWC is configured to navigate the luminal network toward a target following the pathway plan. The EM sensor extends distally from a distal end of the EWC and is configured to sense the EM field. The US transducer extends distally from a distal end of the EWC, generates US waves, and receives US waves reflected from the luminal network. The processor processes the sensed EM field to synchronize a location of the EM sensor in the 3D model, to process the reflected US waves to generate images, or to integrate the generated images with the 3D model.

Abstract: Embodiments provide a system to detect abnormal breathing by a person, such as a baby, through a piece of clothing worn by the person. The piece of clothing may be adapted to include a sound sensor that can collect breathing sounds by the person. The piece of clothing may also be adapted to include an inflatable neck support that can be automatically inflated without the person's intervention. The breathing sound signals by the person can be processed for determining whether the person breathing abnormally. When it is determined that the person is breathing abnormally, an instruction to inflate the inflatable neck support of the clothing may be generated. Such an instruction can be transmitted to the clothing wirelessly to effectuate the inflation of the inflatable neck support so the person's incorrect breathing posture that causes the abnormal breathing can be addressed.

Abstract: A prediction apparatus includes a sensor for detecting a biological gas and a lifelog acquisition unit configured to acquire a lifelog. The prediction apparatus further includes a controller configured to predict a diet effect on the basis of information about the biological gas detected by the sensor and the lifelog acquired by the lifelog acquisition unit.

Abstract: An apparatus for patient's lung function testing using forced oscillation technique is described. The apparatus includes a sub-woofer configured to generate a pressure wave. The apparatus further includes a waveguide configured to direct the generated pressure wave to be introduced into airflow towards the patient's lung. The apparatus includes a pressure transducer configured to measure a change in pressure of the airflow and one or more flow transducers configured to measure a change in flowrate of the airflow, in response to the pressure wave introduced into the airflow. The apparatus includes a computing unit configured to determine a mechanical impedance of the patient's lung based on the measured change in pressure and flowrate of the airflow.

Abstract: A capnographic system, the system comprising one or more processors configured to: (i) receive an initial capnographic measurement from a breath monitoring device, at least when the breath monitoring device is attached to a patient, (ii) receive a primary value of at least one attribute, other than the initial capnographic measurement, characteristic of the patient, (iii) assign, from a database containing at least one set of secondary values corresponding to primary values of the at least one attribute, a secondary value corresponding to the primary value of the at least one attribute, and (iv) calculating, based on a combination of the initial capnographic measurement and the secondary value, a refined capnographic measurement.

Abstract: A sensing system comprises an elastic sensing element for sensing a movement, an inertial measurement system for sensing a movement, and a controller programmed for obtaining movement sensing data from the elastic sensing element and from the inertial measurement system and for calibrating the elastic sensing element using the combined movement sensing data from the elastic sensing element and the inertial measurement system.

Abstract: As a non-limiting example, various aspects of this disclosure provide embodiments of continuous background heartrate and heartbeat events detection using a motion sensor during various phases of activity by a user.

Abstract: A walking assistance method and/or apparatuses configured to perform same are provided. A state variable may be defined based on a result obtained by measuring a gait motion of a user, and a torque profile may be generated based on the defined state variable, a gain and a delay. The generated torque profile may correspond to a torque profile to assist the gait motion, or a torque profile to provide a resistance to the gait motion.

Abstract: A respiratory therapy device that is adapted to matingly connect with two standardized respiratory devices simultaneously to allow for combination, enhanced, single device, respiratory treatments. It monitors the number of PEP treatment events utilizing a motion sensor, and presents a resettable, visual stimulus for each event as well as providing a record of the events in each therapy cycle.

Abstract: Monitoring target person monitoring device, method, and system according to the present invention sense a predetermined event regarding a monitoring target person to notify the event; acquire an image including at least a video; determine, based on the acquired image, whether or not multiple persons are on the image; and start, in a case where it is determined that the multiple persons are on the image, storing the acquired video to store the video in a video storage.

Abstract: A notification system is provided that provides notification of patient events such as movement and/or incontinence. The notification system provides for a plurality of different pressure sensor pads as well as an incontinence pad to be used in association with a single monitor.

Abstract: A notification system is provided that provides notification of patient events such as movement and/or incontinence. The notification system provides for a plurality of different pressure sensor pads as well as an incontinence pad to be used in association with a single monitor.

Abstract: A notification system is provided that provides notification of patient events such as movement and/or incontinence. The notification system provides for a plurality of different pressure sensor pads as well as an incontinence pad to be used in association with a single monitor.

Abstract: A notification system is provided that provides notification of patient events such as movement and/or incontinence. The notification system provides for a plurality of different pressure sensor pads as well as an incontinence pad to be used in association with a single monitor.

Abstract: A system for improving the treatment of a patient's disease. A patient is fitted with a wireless motion capture device. A computer system receives the captured motion data other patient metric information and compares same to stored data sets. The stored data sets may comprise other motion data and/or metric data from the patient being examined, or captured data from other patients. The stored data sets can also be tagged with, or otherwise associated with, one or more treatment protocols. A model can be formed with respect to the patient's captured motion and other metric information. A probable treatment of the diseases, effectiveness of the patient's treatment regimen, and progression of the disease itself can be ascertained from the comparison.

Abstract: The present application relates generally to computer software, mobile electronics, wireless communication links, and wearable monitoring systems. More specifically, techniques, systems, sensors, circuitry, algorithms and methods for wearable monitoring devices and associated exercise apparatus are described. A garment borne sensor system may acquire data on a user's performance during exercise, for example. The data may be analyzed in real time and feedback may be provided to the user based on the analysis. Analysis may be used to alter behavior of the user and/or an apparatus the user is engaged with during an activity, such as exercise, conditioning, therapy, etc. A piece of exercise equipment may be instrumented and in communication with the sensor system or other system and may be controlled in real time to adjust its settings to affect the user during the exercise routine. Communication between the sensor system and other systems may be wireless.

Abstract: A system and method for monitoring the tidal volume of an individual to diagnose a condition is disclosed. The system includes an electrically-conductive, elastomeric band; and a microprocessor having memory. The microprocessor is in electrical communication with said band and has functionality to monitor the respiratory activity of the individual during a period of time, collect raw data from 30 times to 34 times per second, average the data over 9-34 readings, blur from 0.3 seconds to 1.0 seconds of said averaged data to filter out artifacts; determine the beginning of a breath and the end of a breath based on said blurred data; and record an adverse event if a pre-determined period of time has elapsed without a new breath commencing.

Abstract: An identification sheet (X1) according to the present invention includes a backing sheet (10) and a pressure-sensitive adhesive sheet (20). The backing sheet (10) bears a distinguishing mark (M1). The pressure-sensitive adhesive sheet (20) has a multilayer structure including a substrate layer (21) and a pressure-sensitive adhesive layer (22). The pressure-sensitive adhesive layer (22) is removably attachable to the backing sheet (10). The pressure-sensitive adhesive sheet (20) bears a distinguishing mark (M2). The identification sheet (X1) as above is suitable for keeping on surely providing the admissibility of evidence of a collected target material to be identified.

Abstract: A method of performing real ear measurements by a measuring system is described herein. The measuring system comprises a probe element adapted to be inserted in the ear canal of an individual; a loudspeaker configured to deliver a sample sound signal to the ear canal; at least one microphone configured to detect a response to the sample sound signal, wherein the probe element is in acoustic communication with the loudspeaker and cooperates with the at least one microphone; and a signal processing unit for performing an acoustic measurement of a response to the sample sound signal, based on an electrical input signal from the microphone.

Abstract: An analyte sensor incorporates one or more techniques for discriminating between different optical signals. In one embodiment, the sensor includes a photodetector that detects a narrow band optical signal. In another embodiment, the sensor includes a multilayer filter including an absorption filter, a reflection filter, and a transparent layer between the absorption and reflection filters. In another embodiment, the sensor employs an indicator that emits light for a period of time after an excitation source is turned off. In another embodiment, the sensor employs a first indicator that is excited by an excitation light source and a second indicator that is excited by light emitted by the first indicator. The second indicator emits light for a period after the excitation source is turned off. In another embodiment, excitation light is polarized by a first polarizer, and a second polarizer at a photodetector passes only light polarized by the first polarizer.

Abstract: A physical condition management device and a method thereof capable of performing early detection of metabolic disease, nutritional guidance, and a physical condition management diagnosis. The physical condition management device includes: an irradiation unit configured to radiate light at a predetermined light intensity toward an inside of a living body from outside of the living body; a light intensity detection unit configured to detect light intensity emitted from the living body; a scattering coefficient calculation unit configured to calculate a scattering coefficient of light inside the living body on the basis of the detected light intensity; a particle diameter calculation unit configured to calculate a variation of an average particle diameter of a lipid in blood on the basis of a variation of the scattering coefficient; and a physical condition determination unit configured to determine a physical condition from a temporal change in the variation of the average particle diameter.

Abstract: A blood glucose sensing device includes a substrate, multiple three-dimensionally (3D) printed electrode leads comprising graphene arranged on or over the substrate, and glucose monitoring chemistry arranged in or on (e.g., adsorbed in) at least one of the 3D printed electrode leads. An end portion of a counter electrode lead may partially surround an end portion of a working electrode lead, and a reference lead may be further provided, Optionally, the 3D printed electrode leads may include a thermoplastic material, such as an aliphatic polyester. The glucose monitoring chemistry may include an enzyme.

Abstract: A handheld device measures all vital signs and some hemodynamic parameters from the human body and transmits measured information wirelessly to a web-based system, where the information can be analyzed by a clinician to help diagnose a patient. The system utilizes our discovery that bio-impedance signals used to determine vital signs and hemodynamic parameters can be measured over a conduction pathway extending from the patient's wrist to a location on their thoracic cavity, e.g. their chest or navel. The device's form factor can include re-usable electrode materials to reduce costs. Measurements made by the handheld device, which use the belly button as a ‘fiducial’ marker, facilitate consistent, daily measurements, thereby reducing positioning errors that reduce accuracy of standard impedance measurements. In this and other ways, the handheld device provides an effective tool for characterizing patients with chronic diseases, such as heart failure, renal disease, and hypertension.

Abstract: This living-body light measuring device is characterized in including: light source units each of which irradiate a subject with light modulated using a prescribed modulation frequency; light detecting units each of which detect an optical signal based on the light; a signal acquiring unit which multiplies the optical by a signal having the prescribed modulation frequency corresponding to the respective light source unit, and which acquires the resulting signal as a signal radiated from the respective light source unit; an analog-digital converter which subjects each signal to analog-digital conversion using a prescribed sampling frequency; and a computing unit which integrates the signals, wherein the sampling frequency is an even multiple of all the modulation frequencies, and the time over which the computing unit performs the integration is an integral multiple of all the modulated signal periods, being the reciprocal of all the modulation frequencies.

Abstract: Disclosed are systems and methods for detecting analyte levels. These systems and methods may include a sensor configured for at least partial placement in an analyte-containing medium. The sensor may include one or more transducers and one or more diffusion barriers. The diffusion barriers may be arranged to delay diffusion of analyte to one transducer relative to another transducer. This delay may be used for purposes such as calculating and/or compensating for lag between a measured analyte level and a physiological analyte level of interest.