Abstract: A non-contact blood pressure measurement system and a non-contact blood pressure value calculation method thereof are disclosed. The non-contact blood pressure measurement system includes a measurement module, a signal processing module, and a calculation module. The measurement module measures a physiological signal of a subject being tested in a non-contact manner. The signal processing module is used to obtain a forward pressure wave and a backward pressure wave according to the physiological signal of the subject being tested. The calculation module is used to find out a reflected pulse transit time between the forward pressure wave and the backward pressure wave so as to substitute the reflected pulse transit time and a plurality of correction parameters into a blood pressure algorithm formula to calculate an estimated diastolic blood pressure and an estimated systolic blood pressure of the subject being tested.

Abstract: An eyewear device that includes a frame and two arms extending distally from the frame with at least one processor included on the frame or the arms and at least two proximity sensors disposed within the frame or arms in a directional manner. The proximity sensors include an infrared signal receiver to receive an infrared emission. The processors execute an operation to warn a person wearing the eyeglasses by emitting a signal selected from a sound, light or vibration when the proximity sensor detects an infrared emission.

Abstract: A respiration rate detection device including a photoplethysmography (PPG) detector, an acceleration detector and a processing unit is provided. The processing unit calculates an acceleration peak frequency in an acceleration frequency spectrum, and takes a PPG acceleration peak frequency in a PPG frequency spectrum corresponding to the acceleration peak frequency as a respiration rate.

Abstract: A sensor device is described herein. The sensor device includes a multi-dimensional optical sensor and processing circuitry, wherein the multi-dimensional optical sensor generates images and the processing circuitry is configured to output data that is indicative of hemodynamics of a user based upon the images. The sensor device is non-invasive, and is able to be incorporated into wearable devices, thereby allowing for continuous output of the data that is indicative of the hemodynamics of the user.

Abstract: An in-vehicle payment system and a method for generating authorization information using the same are provided. The in-vehicle payment system includes an authentication number input device including an interface of a vehicle configured to receive an input from a user, and generate and output input signals corresponding to a manipulation pattern of the interface, a code display device configured to display a code table in an array form including a plurality of code values based on received code information on a screen, and an authorization information generator configured to generate the code information and transmit the code information to the code display device, and recognize an authentication number input by the user using the code information and preset matching information to generate authorization information corresponding to the authentication number when the input signals are received from an authentication number input device.

Abstract: An instruction to perform scaling, converting and splitting operations is executed. The executing the instruction includes scaling an input value in one format to provide a scaled result. The scaled result is converted from the one format to provide a converted result in another format. The converted result is split into multiple parts, and one or more parts of the multiple parts are placed in a selected location.

Abstract: Radial artery compression devices with an inflatable chamber and a substantially rigid frame are disclosed. The inflatable chamber of the radial artery compression devices can be inflated and then deflated according to a predetermined protocol. Some substantially rigid frames can form a wall of the inflatable chamber. Some substantially rigid frames can include indicia to facilitate positioning of the inflatable chamber relative to a puncture site of a patient.

Abstract: An optical proximity sensor assembly includes an optical proximity sensor with an IR LED emitting light having an infrared wavelength, an IR photo detector sensitive to the infrared wavelength, an optical barrier blocking direct light rays from the LED to the IR photo detector and permitting reflected light rays to reach the at least one photo detector; and an electronic integrated circuit with an amplifier for amplifying a signal detected by the photo detector, an analog to digital converter, LED drivers, noise reduction and ambient light cancellation circuitry, and a digital interface for communication with a microcontroller. The optical proximity sensor is accommodated on a wearable carrier. A single sensor may include a plurality of identical or different LEDs, a plurality of photodiodes, or both. Also, several sensors may be placed on a person's skin along a vascular path to obtain data relating to blood flow and artery stiffness.

Abstract: The present disclosure is related to a detecting device which includes a fixing component, a sensing component, and a terminal. The fixing component is fixed to an object under test and generates a first magnetic field. The sensing component includes a driving module and a reference module. The driving module generates a second magnetic field, and the driving module further generates a sensing signal according to an electromagnetic induction produced by the first magnetic field and the second magnetic field. The reference module is spaced from the driving module by a distance, such that the reference module is outside of the second magnetic field and generates a reference signal. The terminal produces detection information according to the sensing signal and the reference signal.

Abstract: A wrist worn muscle movement monitoring device includes a wrist strap; a sensor that responds to muscle movement at a wrist wearing the wrist strap; and monitoring circuitry connected to the sensor.

Abstract: An analyzing apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to detect a shear wave propagating in an object. The processing circuitry is configured to calculate an index value that indicates viscosity within the object and that is not dependent on any physical model related to viscoelasticity, by analyzing the detected shear wave.

Abstract: An electronic device includes a sensor unit configured to acquire a pulse wave of a subject's carotid artery and a controller configured to estimate a condition of the subject's carotid artery based on the pulse wave acquired by the sensor unit.

Abstract: A photoelectric sensor module includes a first light emitting element that emits light having a first wavelength, a second light emitting element that emits light having a second wavelength different from the first wavelength, and a light receiving element that receives light emitted from the first light emitting element and reflected by an object and light emitted from the second light emitting element and reflected by the object are mounted on a substrate with linear edges. With respect to a virtual straight line defined on a surface of the substrate, a light emitting portion of the first light emitting element and a light emitting portion of the second light emitting element are line-symmetric, a light receiving portion of the light receiving element is line-symmetric, and a shape of the substrate in plan view is line-symmetric.

Abstract: A monopolar physiological signal detection device and a method of operating the monopolar physiological signal detection device are provided. With a differential amplifier, a delay circuit, a driven-body circuit, and a band-pass filter, the monopolar physiological signal detection device can reduce the common-mode interference induced by supply mains. Moreover, the monopolar physiological signal detection device employs a single electrode to generate electric potentials with different time factors from the same skin surface. Accordingly, consecutive heartbeat related information of a user can be collected even when the user is under natural and comfortable postures.

Abstract: A pressure sensor comprises an optical source configured to illuminate the tissue of a user, and an optical sensor configured to measure reflected illumination from the tissue. A compute system is configured to output a pressure between a surface of the optical sensor and the tissue as a function of the measured reflected illumination.

Abstract: The present invention relates to a mobile terminal capable of performing a pressure measurement, the mobile terminal including a pressure sensor, a main body having an inner space to accommodate the pressure sensor therein, a cover configured to cover at least part of the main body, and a hole formed through the cover to allow an introduction of external air into the inner space, and located to face the pressure sensor.

Abstract: The present invention is directed to a steering apparatus for a vehicle having a including a light element providing indication and warning light signals to the user of the vehicle. The light element can be associated with a PCB mounted to the steering wheel grip for controlling the operation of the light element.

Abstract: A device for detecting electrical impedance by utilizing a theory of excitation and response signals and method thereof, wherein the excitation signal is a square wave excitation current signal (1), the response signal on a target is transformed to a square wave signal with appropriate amplitudes by buffering, amplifying, RC filtering and differential amplifying, then is transformed to a digital signal at a proper time by an analog-to-digital converter. The response signal is sampled once when at high level and once when at low level for every circle by the ADC, and a sample V1 and a sample V2 are obtained respectively, difference of the samples is taken as a detecting result for one circle. An average value of the detecting result from a plurality of circles is taken as a final result. Information of electrical impedance is illustrated by the final result because the excitation current signal is constant.

Abstract: Self measurements of physiological parameters such as blood pressure are prone to errors and artifacts since they are often not done according to established and standardized protocols i.e., such that predetermined conditions for a reliable measurement are not met. To determine whether the predetermined conditions for a reliable measurement are met one or more physiological and environmental sensors are used to determine a measurement context. The obtained sensor data is compared with predetermined thresholds to determine whether the context allows a reliable self test. In case the predetermined conditions are not met based on the obtained sensor data instructions are given to guide the subject that wants to do a self test.

Abstract: The present invention is directed to a steering apparatus for a vehicle having a including a light element providing indication and warning light signals to the user of the vehicle. The light element can be associated with a PCB mounted to the steering wheel grip for controlling the operation of the light element.

Abstract: The present invention is directed to a steering apparatus for a vehicle having a including a light element providing indication and warning light signals to the user of the vehicle. The light element can be associated with a PCB mounted to the steering wheel grip for controlling the operation of the light element. The PCB may be thermally coupled to a heat exchange component such that heat from the light element is transferred from the PCB to the steering wheel grip.

Abstract: A pulse measuring device according to one embodiment of the present invention comprises: a measuring unit which is capable of spherical movement with multiple degrees of freedom; and a movement unit on which the measuring unit is mounted, and which has a spherical movement part for moving the measuring unit spherically with multiple degrees of freedom while also having a linear movement structure for moving the measuring unit linearly with multiple degrees of freedom. The measuring unit comprises: a unit body which is coupled so as to be able to rotate relative to an end part of the movement unit; a linking part which is coupled to a lower end part of the unit body and is able to rotate relative to the unit body; and a sensor part which is equipped with a pulse diagnosis sensor.

Abstract: The present invention is directed to a steering apparatus for a vehicle having a including a light element providing indication and warning light signals to the user of the vehicle. The light element can be associated with a PCB mounted to the steering wheel grip for controlling the operation of the light element.

Abstract: A processor provides signal quality based limits to a signal strength operating region of a pulse oximeter. These limits are superimposed on the typical gain dependent signal strength limits. If a sensor signal appears physiologically generated, the pulse oximeter is allowed to operate with minimal signal strength, maximizing low perfusion performance. If a sensor signal is potentially due to a signal induced by a dislodged sensor, signal strength requirements are raised. Thus, signal quality limitations enhance probe off detection without significantly impacting low perfusion performance. One signal quality measure used is pulse rate density, which defines the percentage of time physiologically acceptable pulses are occurring. If the detected signal contains a significant percentage of unacceptable pulses, the minimum required signal strength is raised proportionately.

Abstract: A method and apparatus to receive a measure of heart rate for a user while the user is exercising on a stationary exercise device, calculate a speed of the user based on the measure of heart rate, and display on a display device viewable by the user a location of where the user would be along a selected route based on the user's speed.

Abstract: This invention relates generally to electro-anatomical mapping method and an apparatus using a catheter and more particularly to a mapping catheter having an embedded MOSFET sensor array for detecting local electrophysiological parameters such as biopotential signals within an excitable cellular matrix geometry, for determining physiological as well as electrical characteristics of conduction path and its underlying substrate within the endocardial and epicardial spaces, the arterial structure and in ganglionic plexus. The apparatus with its MOSFET sensor is geometrically configured as a decapolar linear array and optionally with an 8×8 sensor matrix placed on a balloon-like structure.

Abstract: An optical imaging system and a method for generating a report regarding elasticity of arteries in the brain of a subject under test. Light output from the light source of the imaging system non-invasively illuminates at least one blood vessel or region of interest in the brain and, upon the interaction with the vessel, is registered with an optical detector to obtain a shape parameter of a hemodynamic pulse in the vessel. The shape parameter is further correlated to an elasticity parameter of the blood vessel(s) feeding the brain region of interest and presented in a form of report that may be a two- or a three-dimensional image of the parameter across the tested region of the brain.

Abstract: This disclosure describes, among other features, systems and methods for using multiple physiological parameter inputs to determine multiparameter confidence in respiratory rate measurements. For example, a patient monitoring system can programmatically determine multiparameter confidence in respiratory rate measurements obtained from an acoustic sensor based at least partly on inputs obtained from other non-acoustic sensors or monitors. The patient monitoring system can output a multiparameter confidence indication reflective of the programmatically-determined multiparameter confidence. The multiparameter confidence indication can assist a clinician in determining whether or how to treat a patient based on the patient's respiratory rate.

Abstract: The invention relates to a medical measuring device having an impedance measurement unit (100) for detecting an impedance measurement signal from the skin surface (200) of a patient to be examined via at least one measurement electrode pair (3). According to the invention, the distance between the electrodes of the measurement electrode pair (3) is from a few millimeters to several centimeters such that, during the measurement process, both electrodes of the measurement electrode pair (3) for locally detecting the impedance measurement signal contact the same region of the skin surface (200) of the patient at the same time.

Abstract: A biological information measurement device includes: a rehabilitation information reception section that receives rehabilitation information that includes information about a pulse rate range applied to a patient; a pulse rate range setting section that sets the pulse rate range based on the rehabilitation information; a display section that displays at least the pulse rate range; a pulse rate measurement section that measures a pulse rate of the patient; a storage section that stores pulse measurement information that includes the pulse rate measured by the pulse rate measurement section, and a measurement time at which the pulse rate was measured; and a pulse measurement information transmission section that transmits the pulse measurement information.

Abstract: A biological signal measuring apparatus that is provided with an oscillatory wave detection apparatus, an oscillatory wave period measuring part, a group memory apparatus that is configured to collect the periodic data and to store the periodic data as a group signal, and a vibration frequency calculation apparatus. The vibration frequency calculation apparatus is provided with a section discrimination part configured to compare the group signal with a predetermined value to carry out a section discrimination, a section memory part configured to store to a plurality of sections, a weight coefficient memory part configured to store a weight coefficient, and an oscillatory wave period weighted average value calculation part.

Abstract: A heart pulse monitor includes a permanent magnet including a mounting structure for securing the permanent magnet in displaceable contact with a blood vessel of a wearer. The permanent magnet has a thickness defining an axial direction that the permanent magnet is displaceable when blood flows. A fluxgate sensor system is positioned a distance in the axial direction from the permanent magnet to sense an axial magnetic field therefrom. The permanent magnet displaces in the axial direction upon a heart pulse of the wearer resulting in a change in the axial magnetic field which is sensed by the fluxgate sensor system through a change in an induced AC output signal on the sense coil. A processor is coupled to receive information from the induced AC output signal. The processor implements calibration data which converts information from the induced AC output signal into a heart pulse measurement for the wearer.

Abstract: A biometric monitoring device is used to determine a user's heart rate by using a heartbeat waveform sensor and a motion detecting sensor. In some embodiments, the device collects collecting concurrent output data from the heartbeat waveform sensor and output data from the motion detecting sensor, detects a periodic component of the output data from the motion detecting sensor, and uses the periodic component of the output data from the motion detecting sensor to remove a corresponding periodic component from the output data from the heartbeat waveform sensor. From this result, the device may determine and present the user's heart rate.

Abstract: The present disclosure may provide a system and method for analyzing data acquired using a physiological monitor. In one embodiment, the analysis is performed on the physiological monitor and results in the analysis of data collected by the physiological monitor over an interval of time. The analysis may include comparing the data to sample data representative of known disease states and/or may include performing statistical analyses or recalculations of the data based on adjusted monitor settings. In one embodiment, the settings of the physiological monitor may be adjusted based on the results of the analyses.

Abstract: According to embodiments, techniques for estimating scalogram energy values in a wedge region of a scalogram are disclosed. A pulse oximetry system including a sensor or probe may be used to receive a photoplethysmograph (PPG) signal from a patient or subject. A scalogram, corresponding to the obtained PPG signal, may be determined. In an arrangement, energy values in the wedge region of the scalogram may be estimated by calculating a set of estimation locations in the wedge region and estimating scalogram energy values at each location. In an arrangement, scalogram energy values may be estimated based on an estimation scheme and by combining scalogram values in a vicinity region. In an arrangement, the vicinity region may include energy values in a resolved region of the scalogram and previously estimated energy values in the wedge region of the scalogram. In an arrangement, one or more signal parameters may be determined based on the resolved and estimated values of the scalogram.

Abstract: The present invention involves a method and an apparatus for analyzing measured signals, including the determination of a measurement of correlation in the measured signals during a calculation of a physiological parameter of a monitored patient. Use of this invention is described in particular detail with respect to blood oximetry measurements.

Abstract: The present invention involves a method and an apparatus for analyzing measured signals, including the determination of a measurement of correlation in the measured signals during a calculation of a physiological parameter of a monitored patient. Use of this invention is described in particular detail with respect to blood oximetry measurements.

Abstract: An optical device including a contact part having a contact surface and an opposing surface, the contact surface coming into contact with a test subject and the opposing surface being opposite the contact surface; a support body installed on the opposing surface; a first element supported by the support body; and a second element disposed between the opposing surface and the support body; wherein one of the first element and the second element is a light-emitting element for emitting light towards a detection site of the test subject; another of the first element and the second element is a light-receiving element for receiving reflected light, the reflected light being light emitted by the light-emitting element and reflected at the detection site; and the contact part is formed from a material that is transparent with respect to a wavelength of the light emitted by the light-emitting element.

Abstract: A method and an apparatus to analyze two measured signals that are modeled as containing desired and undesired portions such as noise, FM and AM modulation. Coefficients relate the two signals according to a model defined. The method and apparatus are particularly advantageous to blood oximetry and pulserate measurements.

Abstract: A transform for determining a physiological measurement is disclosed. The transform determines a basis function index from a physiological signal obtained through a physiological sensor. A basis function waveform is generated based on basis function index. The basis function waveform is then used to determine an optimized basis function waveform. The optimized basis function waveform is used to calculate a physiological measurement.

Abstract: The present disclosure includes a pulse oximeter attachment having an accessible memory. In one embodiment, the pulse oximeter attachment stores calibration data, such as, for example, calibration data associated with a type of a sensor, a calibration curve, or the like. The calibration data is used to calculate physiological parameters of pulsing blood.

Abstract: A method and an apparatus to analyze two measured signals that are modeled as containing desired and undesired portions such as noise, FM and AM modulation. Coefficients relate the two signals according to a model defined. The method and apparatus are particularly advantageous to blood oximetry and pulserate measurements.

Abstract: Methods and systems are provided for using time-frequency warping to analyze a physiological signal. One embodiment includes applying a warping operator to the physiological signal based on the energy density of the signal. The warped physiological signal may be analyzed to determine whether non-physiological signal components are present. Further, the same warping operator may be applied to signal quality indicators, and the warped physiological signal may be analyzed based on the warped signal quality indicators. Non-physiological signal components, or types of non-physiological noise sources, may be identified based on a comparison of the physiological signal with the signal quality indicators. Non-physiological signal components may also be identified based on a neural network of known noise functions. In some embodiments, the non-physiological signal components may be removed to increase accuracy in estimating physiological parameters.

Abstract: A newborn heart rate monitor is disclosed comprising a sensor integrated into a clamp configured to clamp onto the umbilical cord of a newborn infant. The sensor is configured to detect radial pulsation of the umbilical cord and produce a corresponding electrical signal which can be processed by a processor to calculate the heartbeat of the newborn infant. The heartbeat can be displayed visually or audibly or both. A second reference sensor can be included to detect environmental noise and the processor can be configured to use the detected environmental noise to filter noise from the detected heartbeat. Additional filtering, processing, and alert algorithms can be included for processing and analyzing the detected heartbeat data.

Abstract: A method and apparatus for controlling alarms in a medical diagnostic apparatus where an alarm is generated when a measured value for a physiological parameter is outside a specified range. The method continuously calculates a baseline value, and establishes dynamic thresholds that are related to and continuously track the baseline value. The method determines the amount of time the measured value is past the dynamic threshold, and the amount by which the threshold is passed. Alarms are triggered based upon a combination of the amount of time and the amount by which the threshold is passed. Preferably, the combination is an integral or some function of an integral.

Abstract: According to embodiments, a method and system for artifact detection in signals is disclosed. The artifacts may take the form of movement artifacts in physiological (e.g., pulse oximetry) signals. Artifacts in the wavelet space of the physiological signal may be removed, replaced, ignored, filtered, or otherwise modified by determining the energy within a predefined moving area of the wavelet scalogram, comparing the determined energy within the predefined moving area of the wavelet scalogram to a threshold value, and masking at least one area of artifact in the wavelet scalogram based, at least in part, on the comparison. From the enhanced signal, physiological parameters, for example, respiration, respiratory effort, pulse, and oxygen saturation, may be more reliably and accurately derived or computed.

Abstract: Embodiments include a system for determining cardiovascular information for a patient. The system may include at least one computer system configured to receive patient-specific data regarding a geometry of the patient's heart, and create a three-dimensional model representing at least a portion of the patient's heart based on the patient-specific data. The at least one computer system may be further configured to create a physics-based model relating to a blood flow characteristic of the patient's heart and determine a fractional flow reserve within the patient's heart based on the three-dimensional model and the physics-based model.

Abstract: Embodiments include a system for determining cardiovascular information for a patient. The system may include at least one computer system configured to receive patient-specific data regarding a geometry of the patient's heart, and create a three-dimensional model representing at least a portion of the patient's heart based on the patient-specific data. The at least one computer system may be further configured to create a physics-based model relating to a blood flow characteristic of the patient's heart and determine a fractional flow reserve within the patient's heart based on the three-dimensional model and the physics-based model.

Abstract: A pulse wave data analyzing method includes successively detecting bottom and top peak values of pulse wave data along a time axis, calculating successive bottom-to-top amplitude values along the time axis, and comparing first and second peak-to-peak amplitude values occurring in succession along the time axis. If the ratio of the second peak-to-peak amplitude value to the first peak-to-peak amplitude value is smaller than a preset threshold, the bottom and top peak values related to the second peak-to-peak amplitude value are classified as temporarily erased data. The second peak-to-peak amplitude value is compared with a third peak-to-peak amplitude value occurring immediately thereafter and, if the ratio between the second and third peak-to-peak amplitude values is larger than the threshold, the temporarily erased data is restored. If the ratio between the second and third peak-to-peak amplitude values is not larger than the threshold, the temporarily erased data is completely erased.

Abstract: Embodiments of the present invention relate to a method for analyzing pulse data. In one embodiment, the method comprises receiving a signal containing data representing a plurality of pulses, the signal generated in response to detecting light scattered from blood perfused tissue. Further, one embodiment includes performing a pulse identification or qualification algorithm on at least a portion of the data, the pulse identification or qualification algorithm comprising at least one constant, and modifying the at least one constant based on results obtained from performing the pulse identification or qualification algorithm, wherein the results indicate that a designated number of rejected pulses has been reached.