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Detecting blood vessel pulsation

Subclass of:

600 - Surgery

600300000 - DIAGNOSTIC TESTING

600481000 - Cardiovascular

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
600502000 Pulse indicator 12
600501000 Waveform graph-type pulse recorder 9
Entries
DocumentTitleDate
20100113948HEART RATE MEASUREMENT - A reflective photoplethysmograph sensor (for example mounted in an earpiece) arranged for photoplethysmograph measurements behind a subject's ear is provided. Also provided is a wearable photoplethysmograph heart rate sensor which includes a plurality of radiation detectors defining respective sensing planes which are tilted with respect to each other. Further there is provided a photoplethysmograph heart rate sensing system which compensates for motion artefacts using a dark signal which may be derived during an off phase of a duty cycle of an emitter and a photoplethysmograph system arranged to select between a plurality of detectors based on a quality measure. Combinations of the systems and sensors are also disclosed.05-06-2010
20100076328PULSE WAVE MEASUREMENT ELECTRODE UNIT AND PULSE WAVE MEASUREMENT DEVICE - A pulse wave measurement electrode unit includes an electrode group and a supporting member. The electrode group includes a first electrode portion including a first current application electrode and a first voltage measurement electrode, and a second electrode portion, positioned spaced apart from the first electrode portion, including a second current application electrode and a second voltage measurement electrode. The supporting member supports the electrode group such that contacting surfaces of the electrodes with respect to a living body are arranged substantially on an identical plane. The electrodes are arranged lined in a direction an artery extends when the pulse wave measurement electrode unit is applied to the living body. According to such a configuration, a pulse wave measurement electrode unit having a simple configuration and enabling high precision volume pulse wave measurement can be provided.03-25-2010
20130079647SYSTEMS AND METHODS FOR DETERMINING RESPIRATION INFORMATION FROM A PHOTOPLETHYSMOGRAPH - A patient monitoring system may determine one or more reference points of a physiological signal. The system may select one or more fiducial points on the physiological signal relative to the reference points. The one or more fiducial points may be selected by selecting a point spaced by a time interval relative to one of the reference points. The time interval may be a predetermined constant, or the time interval may depend on physiological information. The system may generate a fiducial signal based on the selected fiducial points, calculate physiological information such as a respiration rate based on the selected fiducial points, or both.03-28-2013
20130079648PULSE WAVE VELOCITY MEASURING DEVICE AND PULSE WAVE VELOCITY MEASUREMENT METHOD - According to one embodiment, a pulse wave velocity measuring device includes a first sensor, a second sensor, a base body and a calculation unit. The first sensor is configured to sense a pulse wave propagating through an interior of a vessel. The second sensor is separated from the first sensor and is configured to sense the pulse wave. The base body is configured to hold the first sensor and the second sensor and regulate a distance between the first sensor and the second sensor. The calculation unit is configured to derive a difference between a time of the sensing of the pulse wave by the first sensor and a time of the sensing of the pulse wave by the second sensor.03-28-2013
20100042006Packages Of Apparatus For Non-Invasive Detection Of Pulse Rate And Blood Flow Anomalies - The present invention provides a package for an apparatus for non-invasively monitoring of blood flow of an object, a magnetic field sensing device, and a magnetic source positioning device.02-18-2010
20120184860Pulse Diagnosis Instrument - The invention provides a device for sphygmus diagnosis, including a positioning component independently fixed around one's wrist, said positioning component has a visible positioning window. Said sphygmus diagnosis device also has a sensor component which is installed in the positioning component. After assembly the sensor probe of said sensor component is located inside said positioning window. The invention has the following advantages: 1. The determinate position of pulse is accurate. 2. Avoiding the measuring position's deviation caused by the moving of the wrist. 3. Ensuring the stability when positioning component fixed around the wrist. 4. The wrist-pillow can rotate freely, which is convenient to achieve the switch between left and right hand for acquisition for pulse.07-19-2012
20100081947APPARATUS AND METHOD FOR MEASURING PULSE WAVES - Pulse waves of a subject are detected in time sequence. Amplitude of the pulse waves is detected, and an interval between two pulse waves adjacent along a time axis is detected. A first change ratio of the interval along the time axis, and a second change ratio of the amplitude divided by the interval along the time axis are calculated respectively. By comparing the first change ratio and the second change ratio with a first threshold and a second threshold respectively, it is decided whether the pulse waves of the subject are irregular.04-01-2010
20130046192IMAGE-BASED PWV MEASUREMENT DEVICE AND METHOD - An image-based PWV measurement device and method are provided. The measurement device comprises at least two light emitting units respectively projecting light beams to at least two detected regions on body surface; at least two light transmitting units respectively receiving and transmitting light signals measured at the different detected regions; an image sensing unit converting the light signals measured at the detected regions into image signals; a length measurement unit used to measure the distance between the detected regions; and an image analysis unit analyzing the image signals to obtain PPG signals for the detected regions. According to the PPG signals, the image analysis unit calculates the physiological parameters, including the perfusion index, respiration rate, pulse rate, stiffness index, reflection index, and PWV between the detected regions, which is derived according to the distance and the pulse transit time from the PPG signals of the two detected regions.02-21-2013
20130046191SYSTEM AND METHOD TO MEASURE ARTERIAL PULSE PRESSURE SIGNALS - The present invention discloses a system and method to measure the pulse pressure signals, which inflates and deflates at least one air bag to detect pulse pressure signals of a human limb. The system comprises a detection device and a host device. The detection device is place on an artery of a human limb and includes one or more air bags. The host device controls inflation and deflation of the air bags, measures pressure variation of the air bags, and records and analyzes pulse pressure signals. The system and method of the present invention can simulate the three-finger technique of pulse diagnostics of the traditional Chinese medicine and provide physicians with more reliable pulse-diagnostics information.02-21-2013
20130090566METHOD AND DEVICE FOR DETECTING A CRITICAL HEMODYNAMIC EVENT OF A PATIENT - The invention relates to a method and a device for detecting a critical physiological state of a patient, especially for detecting a critical hemodynamic event. A set of values of physiological parameters is measured, including the heart rate and the pulse arrival time. On the basis of these measurements, a risk assessment is performed including the allocation of a representation of the measured set of values as a vector in a vector space to a risk level representing the risk of the occurrence of a critical hemodynamic event.04-11-2013
20090287099PULSE RATE MEASURING APPARATUS - From pulse wave data obtained from change in a blood flow, an average interval of a prescribed number of immediately preceding pulses or pulses in an immediately preceding prescribed time period is calculated. Next, an average-calculation range is determined on the basis of at least one of an amount of fluctuation and an evaluation result. The amount of fluctuation is a value calculated on the basis of a difference between the average interval and an interval of a pulse wave newly detected from the pulse wave data. The evaluation result is a result of evaluating the interval of the newly detected pulse wave by at least one evaluation factor. Thereafter, an average pulse wave interval value is calculated by averaging pulse wave intervals on the basis of the average-calculation range, and a pulse rate is calculated on the basis of the average pulse wave interval value.11-19-2009
20090270743SYSTEMS AND METHODS FOR PROVIDING AUTHENTICATED BIOFEEDBACK INFORMATION TO A MOBILE DEVICE AND FOR USING SUCH INFORMATION - The present invention provides systems, methods and apparatus for a wearable band adapted to be worn by a user. The wearable band may include one or more biometric sensors such as a pulse monitor adapted to monitor a pulse of the user, and a transmitter adapted to wirelessly transmit pulse information from the pulse monitor to a mobile device such as a cellular telephone or PDA. The wearable band does not include a display for the biometric information. Numerous additional embodiments are disclosed.10-29-2009
20130066218APPARATUS FOR MEASURING PULSE AND METHOD OF OBTAINING PULSE INFORMATION USING THE SAME - A pulse measurement apparatus and a method of obtaining pulse information using the same are provided. The pulse measurement apparatus includes a frame, a first arm and a second arm installed in the frame so that the first and the second arms are rotated, and a sensor unit formed at one end of each of the first arm and the second arm, brought in contact with an inner wall within an ear of a user, and configured to detect pulse waves transferred through a blood vessel. The pulse measurement apparatus mounted on an ear and reduced in size can be provided, and a continuous and stable pulse wave signal can be measured using the pulse measurement apparatus.03-14-2013
20100036267ANALYSIS DEVICE AND ANALYZING METHOD FOR AUTONOMIC NERVE STATE - A detecting device for detecting an autonomic nervous state of an examinee includes a measuring unit, an analog-to-digital converting (ADC) unit and a digital processing unit. The measuring unit measures a vital sign of the examinee to output a vital sign signal. The ADC unit is coupled to the measuring unit for receiving and converting the vital sign signal from analog to digital to output a digitalized vital sign signal. The digital processing unit is coupled to the ADC unit for receiving and processing the digitalized vital sign signal to obtain a detecting result. The detecting result represents the autonomic nervous state and organic states of the examinee.02-11-2010
20090275844MONITOR CONFIGURATION SYSTEM - A monitor configuration system which communicates with a physiological sensor, the monitor configuration system including one or more processors and an instrument manager module running on the one or more processors. At least one of the one or more processors communicates with the sensor and calculates at least one physiological parameters responsive to the sensor. The instrument manager controls the calculation, display and/or alarms based upon the physiological parameters. A configuration indicator identifies the configuration profile. In one aspect of the invention, the physiological sensor is a optical sensor that includes at least one light emitting diode and at least one detector.11-05-2009
20110282224PULSE WAVE ANALYZER AND PULSE WAVE ANALYZING METHOD - In a pulse wave analyzer, a local maximum point of a fourth order differentiated wave of the pulse wave of one beat is acquired, and a maximum point of a reflection wave of the local maximum points of the fourth order differentiation existing in a zone of an original waveform is determined as a starting point of a reflection wave zone that is a first characteristic point. With 10% of the amplitude of the first characteristic as a threshold value, a time point at which the amplitude reaches the threshold value after the relevant point is determined as an ending point of the reflection wave zone that is a second characteristic point. The duration time of the reflection time of the time between the first characteristic point and the second characteristic point is calculated as an index useful in the diagnosis of heart disease.11-17-2011
20110301477METHOD AND DEVICE FOR MEASURING THE RSA COMPONENT FROM HEART RATE DATA - A device for providing biofeedback information to a subject, including a receiver for receiving heart rate data from a sensor, said heart rate data corresponding to a human subject, a storage device for storing a time series of the received heart rate data, a display, and a processor that is programmed to enable access to the storage device and to perform actions including estimating an RSA strength of the subject's heart from the time series of the received heart rate data, calculating an accumulated RSA strength from a designated starting time until the present time, determining a motion by a virtual agent based on the accumulated RSA strength at the present time, said virtual agent being a graphical object or character that represents the subject, and displaying the motion of the virtual agent determined by said determining on the display.12-08-2011
20110288424HUMAN FATIGUE ASSESSMENT DEVICE AND HUMAN FATIGUE ASSESSMENT METHOD - A human fatigue assessment device capable of performing highly accurate fatigue assessment is provided. The human fatigue assessment device (11-24-2011
20090287100MULTICHAMBER SPHYGMOMANOMETER WITH CHAMBER SELECTOR - A multichamber sphygmomanometer is provided with a set of inflatable chambers (11-19-2009
20090182239PULSE WAVE MEASURING DEVICE - According to the invention, a pulse wave measuring device includes: a connector that is disposed on a main unit; an external sensor that includes an external light-emitting module radiating light to a human body to be measured and an external light-receiving module receiving at least one of reflected light and transmitted light originating from the external light-emitting module and the human body so as to measure a pulse wave; an first controller that switches the external light-emitting module ON and OFF; an second controller that switches the external light-receiving module ON and OFF; and an external sensor connection determination section that determines a connection between the external sensor and the connector in accordance with a transient response of the external light-receiving module, wherein, after the external sensor connection determination section determines that the external sensor is connected to the connector, a measurement of the pulse wave by using the external sensor is started.07-16-2009
20100036266DEVICE AND METHOD FOR DETECTING HEART BEATS USING AIRWAY PRESSURE - Embodiments are directed to a device and method for detecting heart beats and/or monitoring ventilation and/or respiration of a patient using air pressure. In one embodiment, a monitoring device comprises a gas duct and at least one pressure sensor configured to measure pressure in the duct. The duct may be in fluid communication with a patients airways. Based on the sensed pressure, a heart beat of the patient may be detected. In another embodiment, a flow rate of the air expired from the patient may be calculated based on the pressure and a known flow resistance.02-11-2010
20090247885PULSE WAVE MEASURING APPARATUS AND AUTONOMIC NERVOUS ANALYSIS SYSTEM HAVING THE SAME - A pulse wave measuring apparatus includes a sensor unit, a light emitting unit provided on the sensor unit and configured to emit light to a target region that is a body part of a subject, a light receiving unit provided on the sensor unit and configured to receive the light reflected from the target region to generate a received light signal that represents a change in blood flow in the target region, a measuring unit having a principal surface, holding the sensor unit on the principal surface and configured to measure a pulse wave of the subject, from the change in blood flow in the target region, a belt being expandable and configured to wrap around the target region to hold the measuring unit, with the principle surface facing the target region, and an elastic member arranged on the principle surface to surround the sensor unit.10-01-2009
20110263993METHOD AND APPARATUS FOR CALCULATING PHYSIOLOGICAL TRAINING PARAMETERS - The present invention relates to a method and apparatus for determining an exercise parameter during a physical performance or after it. In the method the pulse of the heart is measured by means of a sensor, the pulse value is determined on the basis of the measurement and the said exercise parameter is calculated on the basis of the pulse value. According to the invention, a recovery pulse value is determined on the basis of the pulse value and previously determined pre-data, the value being dynamically varied during the exercise and the said exercise parameter being defined by using the recovery pulse value. With the invention, it is possible to accurately estimate the recovery time required after the performance as well as the energy consumption during the performance.10-27-2011
20100113949SYSTEMS AND METHODS FOR MEASURING PULSE WAVE VELOCITY WITH AN INTRAVASCULAR DEVICE - The systems and methods described herein allow measurement of the velocity of a pulse wave propagating within a body lumen using an intravascular elongate medical device. The elongate medical device can include a data collection device configured to collect pulse wave data at a location within the lumen. The data collection device is communicatively coupled with a velocity measurement system and configured to output the collected data to the velocity measurement system. The velocity measurement system is configured to calculate the velocity of the pulse wave based on the collection data. The velocity of a pulse wave over a region of the lumen can be used for tissue characterization, diagnosis and the like.05-06-2010
20100121207APPARATUS AND METHOD FOR DETECTING AN APNEA USING SIGNALS SENSED IN DEPENDENCE ON THE BLOOD PRESSURE - The existence of an apnea may be inferred when, in a pulse wave signal which is provided and is detected in dependence on the blood pressure, a change in a waveform of the pulse wave signal meets a predetermined detection criterion.05-13-2010
20100125213SYSTEMS AND METHODS FOR ASSESSING DYNAMIC CEREBRAL AUTOREGULATION - A method for dynamic cerebral autoregulation (CA) assessment includes acquiring a blood pressure (BP) signal having a first oscillatory pattern from a first individual, acquiring a blood flow velocity (BFV) signal having a second oscillatory pattern from the first individual, decomposing the BP signal into a first group of intrinsic mode functions (IMFs), decomposing the BFV signal into a second group of IMFs, determining dominant oscillatory frequencies in the first group of IMFs, automatically selecting a first characteristic IMF from the first group of IMFs that has its associated dominant oscillatory frequency in a predetermined frequency range, automatically selecting a second characteristic IMF from the second group of IMFs, calculating a time sequence of instantaneous phase difference between the first characteristic IMF and the second characteristic IMF, computing an average of the instantaneous phase difference in the time sequence, and identifying a pathological condition in the first individual.05-20-2010
20110270098APPARATUS AND METHOD FOR MEASURING BLOOD PRESSURE - The application relates to an apparatus and a method for estimating a central systolic blood pressure (cSBP) of a subject, in which a peripheral blood pressure waveform of the subject's pulse and at least two peripheral blood pressure measurements within the cardiac cycle of the subject are determined and the peripheral blood pressure waveform is manipulated with a transfer function to provide an estimate of the central blood pressure waveform of the subject's pulse. The at least two peripheral blood pressure measurements within the cardiac cycle of the subject and the peripheral blood pressure waveform of the subject's pulse are determined at substantially the same point on a peripheral artery of the subject. The estimate of the central blood pressure waveform of the subject's pulse provides an estimate of the central systolic blood pressure of the subject.11-03-2011
20110208071SMART NON-INVASIVE ARRAY-BASED HEMODYNAMIC MONITORING SYSTEM on CHIP AND METHOD THEREOF - A non-invasive array-based hemodynamic monitoring system on chip is disclosed. The non-invasive array-based hemodynamic monitoring system on chip comprises a CMOS MEMS pressure sensor array, a readout circuit, and a signal control system. The CMOS MEMS pressure sensor array is configured to sense a pulse wave of a blood vessel. The readout circuit is coupled with each of the CMOS compatible MEMS pressure sensors and is configured to read the pulse wave and transformed the pulse wave into a voltage signal. The signal control system is coupled with each of the readout circuit, and is configured to estimate a wave velocity according to the voltage signal.08-25-2011
20080275351Model-based pulse wave velocity measurement method - A method for measuring pulse wave velocity through an artery. The method includes: obtaining an image of the artery; generating from the image a model of the artery; selecting two reference points along the artery, such two reference points being separated a predetermined distance, D; observing a change in the model at a first one of the two reference points and a corresponding change in the model at a second one of the two reference points along with a time difference T between the observed changes; and estimating the pulse wave velocity, PWV, in accordance with PWV=D/T.11-06-2008
20090264775BLOOD VESSEL AGEING INDEX MEASURING AND ANALYZING SYSTEM, AND MEASURING AND ANALYZING METHOD THEREOF - A blood vessel ageing index measuring and analyzing system includes a pressure applying unit, a measuring unit, a front end signal processing unit, and a back end signal analyzing unit. The pressure applying unit is configured to apply external pressure to a limb of a subject, or to release the limb of the subject from the external pressure. The measuring unit is configured to output a standard radial artery pulse signal and a comparative radial artery pulse signal. The front end signal processing unit is configured to process the standard and comparative radial artery pulse signals to generate a digital standard radial artery pulse signal and a digital comparative radial artery pulse signal. The back end signal analyzing unit is configured to obtain a blood vessel ageing index according to the digital standard and comparative radial artery pulse signals.10-22-2009
20090124914ANALYSIS SYSTEM AND A METHOD FOR PULSE DIAGNOSIS IN CHINESE MEDICINE - The present invention relates to an analysis system and method for pulse diagnosis in Chinese medicine, which analyzes quantitatively the variances of pulse condition, and in particular analyzes the “pulse POSITION”, “pulse PACE”, “pulse FORM” and “pulse DYNAMICS” elements in pulse condition with remarkable increase in the accuracy of pulse diagnosis. The analysis system for pulse diagnosis of the present invention comprises a pulse signal collecting device to collect and generate blood pressure and electrocardiogram signals; and a signal process unit to receive and analyze the blood pressure signal series and electrocardiogram signal series. The execution of the signal process unit includes: establishing the position parameters based on measurement of the blood pressure signals, the heart rate parameters based on calculation of the blood pressure or electrocardiogram signals, the wave form parameters based on analysis of the blood pressure signals, the spectrum analysis parameters based on heart rate variability (HRV) and arterial pressure variability (APV), and the quantitative indexes of the elements in pulse condition of Chinese medicine based on the parameters mentioned above.05-14-2009
20090030330DISPOSABLE ACTIVE PULSE SENSOR - A disposable active pulse sensor has an emitter that generates optical radiation having a plurality of wavelengths, a detector that is responsive to the optical radiation and an unbalanced electrical motor that vibrates when energized. A tape assembly removably attaches the emitter, the detector and the unbalanced electrical motor to a tissue site. The tape assembly also physically mounts the emitter, the detector and the unbalanced electrical motor in a spatial arrangement so that vibration from the unbalanced electrical motor induces pulsatile blood flow within the tissue site, the emitter transmits the optical radiation into the tissue site and the detector generates a sensor signal responsive to the intensity of the optical radiation after attenuation by the pulsatile blood flow within the tissue site.01-29-2009
20090177097EXERCISE DEVICE, SENSOR AND METHOD OF DETERMINING BODY PARAMETERS DURING EXERCISE - A noninvasive light sensor for detecting heart beat signals has a circular support member engageable circumferentially with a body part of a person. Light emitters and light detectors are located around a circumference of the circular support member for respectively emitting light signals into different areas of tissue surrounding the body part, and detecting reflected light signals from the different areas of tissue surrounding the body part.07-09-2009
20090187110Method for determining a cardiac function - A method for determining a cardiac function, comprising (i) determining base anatomical characteristics associated with the subject, (ii) determining pulse delay to a first body site (PD07-23-2009
20090247886PULSE WAVE MEASURING APPARATUS AND METHOD FOR MEASURING A PULSE WAVE - A pulse wave measuring apparatus includes a pulse wave measuring unit measuring pulse wave; a first detection unit detecting first maximum and minimum values; a second detection unit detecting second maximum and minimum values; an update unit updating the first maximum and minimum values with the second maximum and minimum values after time periods; an initialization unit initializing the second maximum and minimum values after updating the first maximum and minimum values; a timing detection unit detecting a time determined by the first maximum and minimum values; and an interval calculation unit calculating a pulse wave interval using the timing.10-01-2009
20090030329PULSE WAVE MEASURING APPARATUS MANUFACTURED WITH SUPPRESSED COST - A pulse wave measuring apparatus includes a pump (01-29-2009
20090204011PULSE WAVE PERIOD MEASURING APPARATUS, PULSE WAVE PERIOD MEASURING METHOD, HEARTBEAT PERIOD MEASURING METHOD, AND RECORDING MEDIUM - A pulse wave period measuring apparatus according to an embodiment of the present invention detects a pulse wave of a subject, detects a maximum value and a minimum value in a predetermined period of the pulse wave, calculates one or more reference values between the maximum value and the minimum value in the predetermined period, based on one or more internally dividing ratios common to plural predetermined periods of the pulse wave, calculates two or more times in the predetermined period, the apparatus calculating the two or more times at which the pulse wave intersects with the one or more reference values, calculates a time period between each calculated time in the predetermined period and a corresponding calculated time in a last period before the predetermined period, as a pulse wave period of the pulse wave, calculates a variation of pulse wave periods, for two or more pulse wave periods calculated between the predetermined period and the last period before the predetermined period, and calculates, based on the variation of the pulse wave periods, the stability of measuring the pulse wave periods.08-13-2009
20090209870PULSE-WAVE MEASUREMENT APPARATUS - A pulse-wave measurement apparatus includes a pressure detecting capacitor which changes its capacitance according to the pressure within an artery; an operational amplifier which is connected at its inverting input terminal to one end of the pressure detecting capacitor and also is connected at its non-inverting input terminal to a reference voltage; a charge transfer capacitor; a switch which is connected to the inverting input terminal of the operational amplifier; and a voltage setting portion which is connected to the switch and to the output of the operational amplifier. The voltage setting portion is adapted to connect the other end of the switch to the output of the operational amplifier or to disconnect the other end of the switch from the output of the operational amplifier and applies a predetermined voltage to the other end of the switch.08-20-2009
20120197140Pulse Wave Detection Device and Pulse Wave Detection Method - A pulse wave detection device that includes a piezoelectric transducer acquiring the velocity pulse wave of a test subject and an information processing unit that processes the acquired velocity pulse wave and selectively detects regular velocity pulse wave data. The information processing unit acquires a differential waveform, extracts the extreme value of the velocity pulse wave, calculates the area value of a domain surrounded by the differential waveform and a reference line, compares the previous value and the current value of the extreme value with each other with respect to the velocity pulse waves chronologically adjacent to each other when the area value is greater than or equal to a predetermined value, and determines that the two velocity pulse waves are regular velocity pulse wave data when a difference between the two extreme values is less than or equal to a predetermined value.08-02-2012
20090240155SLEEP CONDITION MEASURING APPARATUS AND METHOD - A sleep condition measuring apparatus includes a determination unit configured to determine a first timing indicating that the user has fallen asleep and a second timing indicating that the user has waken up, based on body motion of a user, an acquisition unit configured to acquire a first index indicating activity of a sympathetic nerve of the user and a second index indicating activity of a parasympathetic nerve of the user, based on a pulse wave interval of the user, a calculation unit configured to calculate a dominance level of the second index over the first index every predetermined time, and a calculation unit configured to calculate a third index indicating quality of sleep of the user from the first timing until the second timing, using the dominance level and a weight decreasing as time elapses from the first timing.09-24-2009
20100274144MEASUREMENT CIRCUIT FOR HEART RATE VARIABILITY - The present invention relates to a measurement circuit for heart rate variability, which uses a measurement circuit for photoplethysmographic (PPG) signal to measure an ear and produces a first measured signal, a measurement circuit for electrocardiographic (ECG) signal to measure a second measured signal, an audio processing unit to produces a sound signal, a control and processing unit for controlling the audio processing unit to play the sound signal, for receiving the first measured signal to produce a corresponding first waveform diagram, and for receiving the second measured signal to produce a corresponding second waveform diagram. Thereby, nervousness and impatience of a person under test can be eliminated, and hence the real heart rate variability of the person under test can be measured.10-28-2010
20090318819PULSE PHOTOMETRY PROBE - A pulse photometry probe includes: a light emitter having a first face from which light is emitted toward a living body; a light receiver having a second face which receives the light from the living body; a surface sheet which faces the first face of the light emitter and the second face of the light receiver; a cover sheet in which at least one slit is formed, the light emitter and the light receiver which are disposed between the surface sheet and the cover sheet; and a lead wire which includes: a first lead wire connected to one of the light emitter and the light receiver; a second lead wire connected to the other one of the light emitter and the light receiver; and a basal portion at which the first lead wire and the second lead wire are bundled. The second lead wire includes at least one slack portion between the basal portion and the other one of the light emitter and the light receiver.12-24-2009
20100262023POWER APPROACH TO BIOMEDICAL SIGNAL ANALYSIS - A consideration of electromagnetic energy transfer following from Poynting's theorem leads to a power signal that facilitates the detection of biomedical pulses. This power signal is derived from and is complementary to the measured biomedical voltage signals. The method may be applied to F-wave signals obtained from nerve conduction studies as well as other biomedical signals. Among other things, this power signal is useful in latency determination.10-14-2010
20100217137PULSE WAVE DETECTION DEVICE, DEVICE CONTROL DEVICE, AND PULSE WAVE DETECTION METHOD - A pulse wave detection device for detecting pulse wave data indicating a pulse wave of a user, the pulse wave detection device including: a pulse wave detection unit (08-26-2010
20100234744BLOOD VESSEL SENESCENCE DETECTION SYSTEM - A blood vessel senescence detection system characterized in that a means for detecting volume pulse waves of paired eyeground artery and vein traveling in the same direction, and a means for detecting peripheral vascular resistance by using waveform differences between the both pulse waves is provided. According to the detection system, the degree of senescence of the capillary of the body, and furthermore the degree of the whole cardiovascular system of the body, can be detected, for example, as a rate of change with time or a vascular age, by using the waveform difference between the volume pulse wave of the eyeground artery and the volume pulse wave of the eyeground vein as a parameter.09-16-2010
20090076399METHOD AND SYSTEM FOR CARDIOVASCULAR SYSTEM DIAGNOSIS - The present invention is directed to a method and system for monitoring function and/or diagnosing dysfunction of the cardiovascular system of a human subject. The method comprise measuring pulse wave signals of the subject during rapid excitation of the cardiovascular system, analyzing the measured signals and computing indicators reflecting a response to said excitation. The cardiovascular excitation preferably comprise a controlled breathing protocol characterized by a predefined frequency of breaths (e.g., about 0.1 Hz).03-19-2009
20110125036THERAPEUTIC SYSTEM, THERAPEUTIC DEVICE, AND CONTROL METHOD - To provide a therapeutic system which is based on the KAATSU training and which is suitable for treating metabolic syndrome.05-26-2011
20110125037DEVICE FOR MEASURING BIOLOGICAL INFORMATION - A device for measuring biological information by being worn on a person includes a sensor unit subjected to measure biological information, a device main unit provided with a concavity and subjected to accommodate the sensor unit, and a holding unit supported on one side by the sensor unit and on the other side by the device main unit; wherein the holding unit is elastic and has a space on one side of the concavity to hold the sensor unit so that at least part of the sensor unit extends outside from the device main unit, and wherein the sensor unit is displaced relative to the device main unit by elastic deformation in accordance with an external force applied to the sensor unit.05-26-2011
20090312654GUIDANCE METHOD, APPARATUS THEREOF, RECORDING MEDIUM STORING PROGRAM THEREOF, AND DEVICE - A first evaluation mode and a second evaluation mode for evaluating with a criterion different from the first evaluation mode are set and the second evaluation mode is applied to acquired information before application of the first evaluation mode to output the evaluation result. A user recognizes that the evaluation result is acquired from the current finger placement. If a change is made in the evaluation result by making transition from the second evaluation mode to the first evaluation mode, the user sensuously recognizes again that the finger placement is not proper from the evaluation result and is prompted to perform a correct operation of the finger position.12-17-2009
20110245697Heart Pulse Detection - There is provided an apparatus for determining a heart pulse of a person, the apparatus comprising at least two detectors configured to detect a blood pulse optically from the blood circulation of the person and to be placed optically on the skin of the person such that the detection of the blood pulse by each of the at least two detectors is expected to take place in a known order, a processor configured to determine that the detection of the blood pulse is correct when the detection of the blood pulse by each of the at least two detectors takes place in the known order, and to determine the heart pulse of the person on the basis of the detected pulses that are determined as correct.10-06-2011
20110152701Heart Pulse Rate Monitor - Disclosed herein are methods and devices for monitoring a heartbeat. In one embodiment, the device may comprise a sensor package mountable over a pulse location of a user. The sensor package may include a first sensor element configured to sense at least one signal at the pulse location and to provide a first output signal comprising a heart pulse signal and a first set of noise artefacts, a second sensor element configured to sense at least one signal at the pulse location and to provide a second output signal indicative of a second set of noise artefacts, and a mechanically isolating material located between the first sensor element and the second sensor element. The device may further comprise processing circuitry connected to the sensor package and configured to extract the heart pulse signal from the first output signal based on the first output signal and the second output signal.06-23-2011
20110251502METHOD AND APPARATUS FOR THE ANALYSIS OF BALLISTOCARDIOGRAM SIGNALS - There is provided a method for analyzing a ballistocardiogram signal to determine a heart rate, the method comprising: determining an initial time estimate for a first heart beat in the ballistocardiogram signal; computing, iteratively, estimates for subsequent heart beats in the ballistocardiogram signal using the initial time estimate; wherein each iteration in the step of computing comprises evaluating a target function that comprises a weighted sum of a plurality of scoring functions; and wherein each iterative step of computing estimates for subsequent heart beats in the ballistocardiogram signal is limited to a target interval after the time estimate found in the previous iterative step of computing.10-13-2011
20110077537PULSE WAVE MEASUREMENT DEVICE AND PULSE WAVE MEASURING - A pulse wave measurement device includes a vibrating membrane configured to transfer displacement of a skin surface caused by a pulse wave, a frame portion configured to fix the outer region of the vibrating membrane, a partitioning portion configured to partition a central region of the vibrating membrane into a plurality of sections, and a plurality of sensor elements respectively provided in the plurality of sections and arranged on the vibrating membrane within each of the plurality of sections. The sensor element in each section is configured to convert vibration of the vibrating membrane in that section into an electric signal. The partitioning portion is coupled to the vibrating membrane. The vibrating membrane is coupled to the frame portion. Thus, the sections of the vibrating membrane partitioned by the partitioning portion vibrate individually, and each section of the vibrating membrane does not substantially interfere with the other sections.03-31-2011
20100185105AMBULATORY REMOTE VIGILANCE SYSTEM WITH A PULSE DENOISING, ACTIMETRY AND FALL DETECTION DEVICE - A device for measuring the pulse includes 07-22-2010
20100198087BEAT DETECTION DEVICE AND BEAT DETECTION METHOD - A beat detection device includes: a pulse wave sensor adapted to detect and output a pulse wave signal; a body motion sensor adapted to detect and output a body motion signal due to a body motion of a human body; a pulse wave signal filtering section adapted to generate an adaptive filter based on the body motion signal to extract a noise signal in the pulse wave signal, and to output a beat signal obtained by eliminating the noise signal from the pulse wave signal; and a filter coefficient setting section adapted to set a coefficient of the adaptive filter to be a predetermined value in response to detection of increase in a body motion change beyond a predetermined threshold value based on the body motion signal.08-05-2010
20090326395SYSTEMS AND METHODS FOR DETECTING PULSES - According to embodiments, systems and methods are provided for detecting pulses in a PPG signal. Local minima and maxima points may be identified in the PPG signal. Each minimum may be paired with an adjacent maximum forming an upstroke segment. Noise may be removed by comparing adjacent segments and ignoring segments that are too long or too large. Notches in the pulse may be identified and ignored by analyzing adjacent segments. Adjacent upstroke segments may be combined as a single upstroke if the lengths of adjacent upstroke segments are about the same, have similar slopes, and the end point of one segment is close to the start point of an adjacent segment. Segments having small temporal or amplitude difference relative to adjacent segments may be disregarded. The remaining segments may represent the pulse upticks. A sliding time window may be used instead to detect pulses in the PPG signal.12-31-2009
20110118614BALLISTOCARDIOGRAM ANALYSIS METHOD AND DEVICE - The present invention discloses a method and signal processing device (05-19-2011
20110257542System Method and Device for Performing Heat Stress Tests - A system, method and device for testing for heat stress of a person is provided. In one embodiment, the method includes determining a first heart rate of the person at the end of a first time period during which a heart rate of the person maintained at least a first predetermined heart rate; after the first time period, determining a second heart rate of the person at the end of a second time period during which the heart rate of the person did not exceed a second predetermined heart rate; wherein the first predetermined heart rate is greater than the second predetermined heart rate; determining that the heart rate of the person transitioned from at least the first predetermined heart rate to no greater than the second predetermined heart rate within a predetermined transition time period; determining a heart rate recovery by subtracting the second heart rate from the first heart rate; determining a heart rate recovery ratio by dividing the heart rate recovery by a heart rate recover baseline; and providing a notification if the heart rate recovery ratio is beyond a threshold.10-20-2011
20100292589HYPOTHENAR SENSOR - A device having an arterial pulse sensor that is adhered to the hypothenar region of a palm using an adhesive patch. The patch has an adhesive surface that is covered by a removable film with an outer portion and a central portion. Also disclosed is a method of detecting an arterial pulse by providing an arterial pulse sensor, placing the sensor on the hypothenar region of the palm of a hand, and receiving an arterial pulse signal from the sensor.11-18-2010
20100121208PULSE DETECTION METHOD AND APPARATUS USING PATIENT IMPEDANCE - The presence of a cardiac pulse in a patient is determined by evaluating fluctuations in an electrical signal that represents a measurement of the patient's transthoracic impedance. Impedance signal data obtained from the patient is analyzed for a feature indicative of the presence of a cardiac pulse. Whether a cardiac pulse is present in the patient is determined based on the feature in the impedance signal data. Electrocardiogram (ECG) data may also be obtained in time coordination with the impedance signal data. Various applications for the pulse detection of the invention include detection of PEA and prompting PEA-specific therapy, prompting defibrillation therapy and/or CPR, and prompting rescue breathing depending on detection of respiration.05-13-2010
20110190646BIOLOGICAL INFORMATION MEASURING DEVICE - A biological information measuring device includes a setting part for setting a target value relating to exercise intensity, a measurement part for measuring biological information that can be converted to exercise intensity, and a correction part for correcting the target value according to a first measured value relating to exercise intensity, where the first measured value is determined from biological information measured by the measurement part during a first exercise period.08-04-2011
20110190645Recovery Determination Methods And Recovery Determination Apparatuses - Recovery determination methods and recovery determination apparatuses are described. According to one aspect, a recovery determination method includes accessing an input for a recovery marker which corresponds to a characteristic of an individual, wherein the input comprises data pertinent to the individual for the recovery marker while the individual is at rest following a period of exercise by the individual, processing the data of the individual for the recovery marker, and determining recovery information which is indicative of a state of recovery of the individual using the processing.08-04-2011
20100030088PHYSIOLOGICAL PARAMETER MONITORING WITH MINIMIZATION OF MOTION ARTIFACTS - An implanted system includes at least two optical sensors implanted proximate to an artery of a patient such that one optical sensor is upstream of another optical sensor. Arterial pulses of the patient may be detected based on electrical signals from at least one of the optical sensors. In addition, electrical signals from the optical sensors may be used to minimize the effects of motion artifacts on the detection of arterial pulses. For example, a detected pulse may be determined to be a spurious pulse if the optical sensors indicate the occurrence of the pulse within a predetermined range of time. As another example, a first optical sensor signal may be shifted in time relative to a second optical sensor signal, and the signals may be correlated. An arterial pulse may be detected at a time at which a peak or trough amplitude value of the correlated signal is observed.02-04-2010
20100022897Heart Monitor - A heart monitor for use as a non-invasive screening tool for identifying potential atrial fibrillation in patients comprises a sensor for producing an output waveform of the patient's actual sinus rhythm, a processing unit arranged to store the normalised waveform of an ideal sinus rhythm and to compare the actual and ideal sinus rhythm waveforms and to produce an output dependant on the difference on a display. The value of the output is indicative of whether the patient is atrial fibrillation or other cardiac arrhythmia.01-28-2010
20100016738SYSTEMS AND METHODS FOR PULSE PROCESSING - According to embodiments, techniques for using continuous wavelet transforms to process pulses from a photoplethysmographic (PPG) signal are disclosed. The continuous wavelet transform of the PPG signal may be used to identify and characterize features and their periodicities within a signal. Regions, phases and amplitudes within the scalogram associated with these features may then be analyzed to identify, locate, and characterize a true pulse within the PPG signal. Having characterized and located the pulse in the PPG (possibly also using information gained from conventional pulse processing techniques such as, for example, by identifying turning points for candidate pulse maxima and minima on the PPG, frequency peak picking for candidate scales of pulses, etc.), the PPG may be parameterized for ease of future processing.01-21-2010
20110060231Training Apparatus, Control Segment for Training, And Control Method - To provide a training apparatus for effective and safe performance of KAATSU training.03-10-2011
20090198142HEART PARAMETER MONITOR - An electronic device to measure the level of mental activity of an individual includes measurement structure for measuring the interval between every heart beat of the individual. The device also includes analysis structure that is constructed to perform a series of mathematical calculations ultimately to compute an index number for the individual. That index number is a measure of mental activity of the individual and is usable to predict the quality of the individual's performance in a desired activity.08-06-2009
20090005695PULSE METER, METHOD FOR CONTROLLING PULSE METER, WRISTWATCH-TYPE INFORMATION DEVICE, CONTROL PROGRAM, STORAGE MEDIUM, BLOOD VESSEL SIMULATION SENSOR, AND LIVING ORGANISM INFORMATION MEASUREMENT DEVICE - The present invention realizes calculating a pulse rate accurately, even when a body movement component has no periodical characteristics, by surely removing the body movement component generated in a living organism from a pulse wave component. A pulse wave detecting section includes a pulse wave sensor and outputs a pulse wave detection signal to an MPU functioning as a body motion component removing section. A body motion sensor outputs a body motion detection signal corresponding to a body motion that affects the behavior of venous blood to the MPU. As a result, to the MPU removes the body motion component from the pulse wave detection signal based on the body motion detection signal. A pulse rate calculating section calculates the pulse rate based on the pulse wave detection signal from which the body motion component has been removed. The pulse rate is displayed on a liquid crystal display device.01-01-2009
20110098581Plethysmograph with animal restraint - A plethysmograph is described that includes a test chamber having an opening; a sealing member including an annular flexible seal to receive at least a part of the head of the test animal mounted across the opening whereby the animal breathes air outside the test chamber, while the animal's body is within the test chamber; and a restraining member attachable to the sealing member, the restraining member including a clamp positionable behind the test animal's head, to prevent the animal from withdrawing its head from the restraining member. The animal is positioned in the restraining member and the sealing member is attached to the restraining member before insertion of the animal and assembly into the test chamber, avoiding previous difficulties in simultaneously placing an animal into the chamber while inserting the animal's nose into the seal. The plethysmograph also eliminates the necessity for a plunger to prevent rearward movement of the animal.04-28-2011
20110098582PULSE DETECTOR AND PULSE DETECTION METHOD - A pulse detector that detects a pulse signal originating from the pulse of a human body includes: a pulse wave sensor that detects and outputs a first pulse wave signal in which the pulse signal and a noise signal are mixed; and a first filtering unit that generates an adaptive spectral line enhancer based on the first pulse wave signal, divides the first pulse wave signal into a first signal and a second signal, and outputs a second pulse wave signal including at least the first signal.04-28-2011
20110166462BIOLOGICAL INFORMATION DETECTOR AND BIOLOGICAL INFORMATION MEASURING DEVICE - A biological information detector including a light-emitting part for emitting a light directed at a detection site of a test subject, a light-receiving part for receiving a light having biological information, the light produced by the light emitted by the light-emitting part being reflected at the detection site, a reflecting part for reflecting the light emitted by the light-emitting part or the light having biological information, a protecting part, having a transparent surface in contact with the test subject, for protecting the light-emitting part or the light-receiving part, and a substrate held between the reflecting part and the protecting part, the light-emitting part being positioned on a side of the substrate towards one of either the reflecting part or the protecting part, and the light-receiving part being positioned on a side of the substrate towards another of either the reflecting part or the protecting part.07-07-2011
20100262022Detection of Progressive Central Hypovolemia using the System of the present invention with Pulse-Decomposition Analysis (PDA) - A system for detecting dehydration, hemorrhaging, and increases in blood volume comprising monitors the time difference between the arrival of the primary left ventricular ejection pulse (pulse T10-14-2010
20120065527Methods and Systems for Monitoring Aterial Stiffness - Implanted systems and methods for monitoring a patient's arterial stiffness are provided. An implanted sensor is used to produce a signal indicative of changes in arterial blood volume for a plurality of beats of the patient's heart. A pulse duration metric is determined for each of a plurality of pulses of the signal, wherein each pulse of the signal corresponds to a beat of the patient's heart. Arterial stiffness is monitored based on the determined pulse duration metric for the plurality of pulses of the signal. This can include monitoring arterial stiffness based on a dispersion of the pulse duration metric and/or an average of the pulse duration metric.03-15-2012
20110092831NON INVASIVE METHOD AND APPARATUS FOR DETERMINING LIGHT-SLEEP AND DEEP-SLEEP STAGES - A method and apparatus for detecting and distinguishing epochs of deep-sleep from epochs of light-sleep of a subject by sensing by a peripheral pulse signal related to the systemic circulation of the subject, preferably a peripheral arterial tone (PAT) sensor for sensing pulsatile arterial volume changes in a digit (e.g., a finger) of the subject reflecting sympathetic tone variations; analyzing the sensed pulse signals for determining therefrom a number of features, particularly seven specific variables in each of two time periods; and utilizing the results of the analysis for determining whether the epoch detected is a light-sleep epoch or a deep-sleep epoch.04-21-2011
20110066049PULSE ABNORMALITY DETECTING DEVICE - A pulse abnormality detecting device comprises a band attached to a wrist, a first sliding member with which the band is armored and which slides in the circumference direction of the band along the band, a second sliding member which is slidably provided on the first sliding member and which slides in the axis direction of the band, a pulse sensor which is provided on the second sliding member and which is provided in such a manner that the position of the sensor can be adjusted to the inner side or the side of the band, and a pulse abnormality detecting unit for detecting the abnormality of the pulse from the output data of the pulse sensor. The device can accurately detect the pulse of a user with high precision, adapting to a personal difference.03-17-2011
20110105920Display Mode Selection - An apparatus, a method, and a computer program are disclosed. The apparatus comprises a processor. The processor is configured to obtain exercise data of a user from a measurement sensor, to identify a present exercise phase of an exercise from among a plurality of exercise phases on the basis of the exercise data, and to select a relevant display mode from among a plurality of display modes on the basis of the present exercise phase and a mapping between the display modes and the exercise phases, wherein the relevant display mode defines a set of display elements associated with the present exercise phase to be displayed to the user.05-05-2011
20110105919MEDICAL DEVICE - A medical device in accordance with the present invention comprises a connection device adapted to be wrapped around and securely attached to a patient, a data storage device attached to or integral with the connection device, wherein the data storage device comprises an input port adapted to receive medical data pertaining to the patient, a memory adapted to store the medical data, and an output port adapted to produce the medical data. A medical device in accordance with the present invention may also comprise a connection device adapted to be wrapped around and securely attached to a patient, a data storage device attached to or integral with the connection device, wherein the data storage device comprises a memory adapted to receive medial data pertinent to a patient, and a transceiver adapted to transmit and receive the medical data.05-05-2011
20100094147SYSTEMS AND METHODS FOR MONITORING HEART FUNCTION - Characteristics of a user's heart are detected. In accordance with an example embodiment, a ballistocardiogram (BCG) sensor is used to detect heart characteristics of a user, and provide a BCG output indicative of the detected heart characteristics. The BCG output is further processed using data from one or more additional sensors, such as to reduce noise and/or otherwise process the BCG signal to characterize the user's heart function.04-15-2010
20120123282METHOD AND APPARATUS FOR DETECTION OF VENOUS PULSATION - Methods and systems for detecting venous pulsation are provided. In one embodiment, a metric of the pulse shape of one or more plethysmographic signals is derived and the presence of venous pulsation is detected based on the metric of pulse shape. Examples, of metrics of pulse shape include a skew metric and a ratio of a minima-to-maxima time over a pulse period interval. In an exemplary embodiment, the presence of venous pulsation is detected based on a metric of the pulse shape of one or more plethysmographic signals and on a phase comparison of the plethysmographic signals.05-17-2012
20120165688WIRELESS OPTICAL PULSIMETRY SYSTEM FOR A HEALTHCARE ENVIRONMENT - The present invention provides a wireless optical pulsimetry system for a healthcare environment comprising a pulse sensor, a USB receiver, and a software. The pulse rate and location information are transmitted from the pulse sensor to the monitoring computer in order to know physiological information of a user in healthcare facilities.06-28-2012
20120130261ALCOHOL-DRINKING DETECTING SYSTEM AND COMPUTER PROGRAM - Determination about presence/absence of alcohol in the body is made accurately.05-24-2012
20120316450ELECTRONIC DEVICE AND METHOD FOR MEASURING PULSE - The present disclosure provides an electronic device and a method of measuring pulse adapted for the device. The electronic device includes a capacitive type touch control unit to sense the change of pulse and the capacitive type touch control unit includes a capacitor. The method includes steps: detecting a pulse of a user in real time and sampling the pulse every sample period, measuring charge-discharge time of the capacitor according to the sampled pulse at each sample period, counting a capacitance value of the capacitor according to the charge-discharge time corresponding to each sampled pulse, and forming a first wave form showing all counted capacitance values of the capacitor. Doing a spectrum analysis of the all counted capacitance values and performing a Fourier Transform to obtain a second wave form of pulse frequency-amplitude, and displaying the second wave form.12-13-2012
20120172736DIALYSER - A dialyser has assigned thereto a measuring unit that transmits data to the dialyser via a wireless link, the measuring unit being able to determine and transmit to the dialyser at least one measurable variable which can also be determined by another measuring device that is connected physically to the dialyser, a comparison of the at least one measurable variable as determined by the measuring unit and by the measuring device indicating whether the measuring unit is indeed the one assigned to the dialyser in question and/or whether the measuring unit is working properly.07-05-2012
20120226174PULSE WAVE VELOCITY MEASUREMENT DEVICE AND PULSE WAVE VELOCITY MEASUREMENT PROGRAM - In a pulse wave velocity measurement device (09-06-2012
20090018454Finger-type pulse detection wireless transmission structure - A finger-type pulse detection wireless transmission structure, comprising: a) a housing made according to a finger's contour, a first lug and a second lug being formed at both sides of the housing, an infrared pulse sensor being disposed at the bottom of the housing for detecting the change of a slight amount of blood within the blood vessel of a user's finger that is caused by the pulsation such that the heartbeat pulse signal of the user is available; b) a sensitive switch disposed at the bottom of the housing for turning power on and off the infrared pulse sensor; c) a finger fixing band having a first end connected to the first lug and a second end passing through the second lug, the finger fixing band being stuck in an reverse direction to the external side such that the housing can be bound to the finger while the infrared pulse sensor and the sensitive switch are in close contact to the finger's skin; d) a noise-canceling circuit and a filtering shaping amplifying circuit installed within the housing and electrically coupled to the infrared pulse sensor; and e) a radio frequency module having a wireless signal transmission circuit and provided within the housing for transmitting the heartbeat pulse signal of the filtering shaping amplifying circuit to a display storage unit provided with a wireless signal receiving circuit such that the heartbeat pulse signal can be displayed.01-15-2009
20120232413BIOMETRIC APPARATUS - A biometric apparatus includes an instruction issuing unit configured to issue an instruction to an object person to be measured to execute a predetermined state; a pulse sensor configured to measure a pulse rate in the predetermined state; a consumed energy measuring unit configured to measure a consumed energy in the predetermined state; and a biological data calculating unit configured to define a relational expression of the consumed energy with respect to a predetermined pulse rate of the object person to be measured on the basis of the pulse rate measured by the pulse sensor in the predetermined state and the consumed energy measured by the consumed energy measuring unit at the measured pulse rate, and calculate biological data of the object person to be measured on the basis of the defined relational expression.09-13-2012
20100179440Pulsimeter sensor using hall device - The present invention relates to a noninvasive medical pulsimeter sensor using a hall device. By forming a pulse-sensing part array with a hall device as a magnetic sensor, over the skin-contacting part which consists of a magnetic material, the present invention increases the integrity of sensors, enables to understand the spatial characteristics of the pulse which cannot be determined by the conventional pressure sensors, minimize the time for searching the pulse, and is applicable widely to portable pulsimeters and the likes.07-15-2010
20120271180MULTIFUNCTIONAL MOUSE - A mouse includes an aperture defined in its top, a light source, and a data processing unit partially positioned external to the housing from the aperture. When the mouse is covered by a palm of a user and the light source emits infrared light, the infrared light reaches the palm of the user through the aperture, and some of the infrared light is reflected and received by the data processing unit. The data processing unit calculates and measures the heart rate and body temperature of the user against physiological parameters.10-25-2012
20120277603Device and Method for Detecting and reporting of a stress condition of a person - For easy determination of the current stress condition of a person, a device is proposed that detects the pulse rate and therefrom additionally determines the heart rate variability—preferably by means of a fast Fourier transform. In addition, at least one parameter related to the history of one of the two values mentioned above shall be used. Preferably, the deviations of the cardiac frequency and of the heart rate variability from corresponding norm parameters are integrated and thus used as an additional stress indicator.11-01-2012
20100179441DEVICE CONTROL DEVICE AND DEVICE CONTROL METHOD - A device control device for controlling an on-vehicle device based on a vital sign of a user, the device control device including: a vital sign measurement unit (07-15-2010
20100130879Apparatus for processing data derived from a heart pulse monitoring device - The invention relates to an apparatus for processing data derived from a heart pulse monitoring device. The apparatus for processing data derived from a heart pulse monitoring device according to the invention comprises data acquisition means capable of acquiring a set of data representing a predetermined interval of said heart pulse, optionally an analog to digital conversion means for providing digital data, processing means for processing said digital data for assigning a coding to said set of data, and display means for displaying said set of data and said indicative coding.05-27-2010
20100130878SYSTEMS, APPARATUS AND PROCESSES FOR AUTOMATED BLOOD FLOW ASSESSMENT OF VASCULATURE - A system, apparatus and process for characterizing aspects of vascular scenarios is described, and includes an input module and a database. The system also includes access to a FSI solver. The FSI solver accepts information from the input module and the database, and uses the accepted information to model a vascular site of interest and provide results from modeling the vascular site of interest. The system also includes interfaces for transmitting information from the input module and the database to the FSI solver and for receiving the results from the FSI solver, and an ensemble of analysis modules which is coupled to the interface for receiving results. The ensemble of analysis modules compares various treatment options, allows before-and-after comparisons of aspects of the vascular site of interest and provides quantitative assessments of parameters of interest describing the vascular site of interest.05-27-2010
20120150052HEART RATE MONITOR - A heart rate monitor includes a user system adjacent to a user's skin in communication with a remote processing system. The user system includes a user processor, a user memory coupled to the user processor, a clock signal generator coupled to the processor, a sensing system coupled to the processor for measuring at least a user heart rate, a user transceiver coupled to the processor, a user interface coupled to the processor, and a user antenna coupled to the transceiver. A user battery is coupled to the user processor, the user memory, the clock signal generator, the sensing system, and the user transceiver. The remote processing system includes a remote processor, a remote memory coupled to the remote processor, a remote transceiver coupled to the remote processor, and a remote antenna coupled to the remote transceiver.06-14-2012
20100168590APPARATUS AND METHOD FOR ESTIMATING LIFE EXPECTANCY - A life expectancy estimation apparatus for estimating a predicted value of life expectancy by pulse information of a biological body. The life expectancy estimation apparatus includes an obtaining unit operable to obtain the pulse information; a storage for storing a record of pulse information of a biological body including a plurality of entries of pulse beat rates of the biological body over a period of time; and a calculation unit operable to calculate an estimated value of life expectancy from the number of remaining pulse beats and the pulse beat rates, the number of the remaining pulse beats being estimated by subtracting the number of total pulse beats in the past estimated from the record of the pulse information from the predetermined estimated value of total pulse beats in a whole life time of the biological body.07-01-2010
20100168591DROWSINESS DETECTION METHOD AND APPARATUS THEREOF - The apparatus comprises an ultra-wide band module or an electrocardiography module for gathering heartbeat signals of a human being. By sequentially obtaining average heart-rate values of a human being, and according to the features of the heart-rate values over a period of time, the method is utilized to determine whether the human being is going to a state of drowsiness.07-01-2010
20110160600ERECTILE FUNCTION INDEX MEASURING AND ANALYZING SYSTEM AND MEASURING AND ANALYZING METHOD THEREOF - An erectile function index measuring and analyzing system includes a measuring device and an analyzing device. The measuring device is configured to output a standard pulse signal based upon a penile artery pulse of a subject that is measured while a penis of the subject is in a relaxed state, a first comparative pulse signal based upon a penile artery pulse that is measured after releasing the penis from external pressure larger than a systolic pressure, and a second comparative pulse signal based upon a penile artery pulse that is measured while the penis is in an erect state. The measuring device is further configured to measure heartbeat for outputting an electrocardiogram signal. According to the above signals, the analyzing device is operable to obtain a vasodilatation index, a pulse wave velocity and an erectile index to serve as erectile function indices used for determining erectile function of the subject.06-30-2011
20080249423Method, system and program product for analyzing pulse wave data - 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.10-09-2008
20120310100Systems And Methods For Detecting And Monitoring Arrhythmias Using the PPG - Systems and methods for detecting and monitoring arrhythmias from a signal are provided. A signal processing system may transform a signal using a wavelet transformation and analyze changes in features of the transformed signal to detect pulse rhythm abnormalities. For example, the system may detect pulse rhythm abnormalities by analyzing energy parameters, morphology changes, and pattern changes in the scalogram of a PPG signal. Further, the system may detect pulse rhythm abnormalities by analyzing both the PPG signal and its corresponding scalogram. Physiological information, such as cardiac arrhythmia, may be derived based on the detected pulse rhythm abnormality.12-06-2012
20080221464Perfusion trend indicator - A perfusion trend indicator inputs a plethysmograph waveform having pulses corresponding to pulsatile blood flow within a tissue site. Perfusion values are derived corresponding to the pulses. Time windows are defined corresponding to the perfusion values. Representative perfusion values are defined corresponding to the time windows. A perfusion trend is calculated according to differences between representative perfusion values of adjacent ones of the time windows.09-11-2008
20080221463System and method for venous pulsation detection using near infrared wavelengths - Methods and systems for detecting venous pulsation are provided. In accordance with an exemplary embodiment of the present technique, there is provided a method for detecting venous pulsation, including acquiring a first signal corresponding to absorption at a first near-infrared wavelength, acquiring a second signal corresponding to absorption at a second near-infrared wavelength, deriving an offset metric from the first and second signals, and detecting the presence of venous pulsation based on the offset metric. The method further includes correcting calculations of physiological parameters such as, for example, blood oxygen saturation, when venous pulsation is detected.09-11-2008
20130102911ELECTRONIC DEVICE AND PULSE RATE CALCULATING METHOD - In an electronic device, a pulse rate measuring unit measures user's pulse rate. For example, the pulse rate measuring unit obtains a change in blood flow from a light passing through a user's fingertip, and measures user's current pulse rate based on it. A pulse rate memory unit has previously stored user's previous pulse rate. A pulse rate calculator calculates the user's pulse rate while changing a ratio of the user's current pulse rate measured by the pulse rate measuring unit to the user's previous pulse rate previously stored in the pulse rate memory unit after starting to measure the user's pulse rate. The user's pulse rate calculated by the pulse rate calculator is displayed as the user's pulse rate on a display unit.04-25-2013
20130131525MONITORING OF VITAL BODY SIGNALS DURING MOVEMENT - The present invention relates to a multi-sensor system and method of monitoring vital body signals during movement of a body of a human or an animal, wherein acceleration sensors are placed at body locations in such a way that an acceleration angle change induced by said vital body signals differs between said at least two acceleration sensors. The retrieval of the vital body signals is achieved by extracting a wanted vital body signal based on measurement results from multiple sensors that may be motion contaminated. Three retrieval schemes are proposed, each with preferred sensor locations that provide optimal performance of retrieving the vital body signal(s).05-23-2013
20130150738HYPOTHENAR SENSOR - A device having an arterial pulse sensor that is adhered to the hypothenar region of a palm using an adhesive patch. The patch has an adhesive surface that is covered by a removable film with an outer portion and a central portion. Also disclosed is a method of detecting an arterial pulse by providing an arterial pulse sensor, placing the sensor on the hypothenar region of the palm of a hand, and receiving an arterial pulse signal from the sensor.06-13-2013
20090306525Apparatus and Method for Defibrillation Pulse Detection Using Electromagnetic Waves - A pulse detector that uses electromagnetic waves for detecting a patient pulse in conjunction with the administration of defibrillation and/or CPR. Electromagnetic waves are applied to a patient blood vessel and the reflected electromagnetic waves are analyzed for a Doppler shift, which is indicative of a pulse. In some applications the pulse detector can be used as a stand-alone device in conjunction with the administration of CPR. In other applications, the pulse detector is included with a defibrillator and provides pulsatile information that is analyzed in addition to ECG information in determining resuscitation therapy, or following defibrillation to ascertain its success.12-10-2009
20110237965PULSE WAVE DETECTOR - A pulse wave detector includes a) a light source repeatedly turned on and off, b) a light receiving element for receiving light, and c) an arithmetic processor for processing an output value acquired through the light receiving element. The arithmetic processor performs arithmetic processing for calculating the difference between a first output value acquired through the light receiving element when the light source is turned on and a second output value acquired through the light receiving element when the light source is turned off. With this structure, a pulse wave detector capable of detecting pulse waves even under the conditions where external light intensity varies can be provided.09-29-2011
20100292590ARTERIOSCLEROSIS DIAGNOSTIC DEVICE - An arteriosclerosis diagnostic device according to various embodiments is a simple device, resistant to an external factor, such as an error resulting from a skin surface, and capable of measuring the degree of hardness of an artery. The arteriosclerosis diagnostic device detects a heart sound and a pulse wave at least one location of a living body, the pulse wave propagating through an artery in relation to the heart sound, converts detected signals thereof into respective frequency signals, specifies the peak frequency of each of the frequency signals, and determines the degree of arteriosclerosis on the basis of the difference between the peak frequency of the heart sound and the peak frequency of the pulse wave. Accordingly, the degree of arteriosclerosis can be determined by comparison between the frequency signals.11-18-2010
20110313303Autonomic Nervous Balance Computation Apparatus and Method Therefor - End pulse wave measurement means 12-22-2011
20120029368PULSE DETECTION APPARATUS, SOFTWARE, AND METHODS USING PATIENT PHYSIOLOGICAL SIGNALS - The presence of a cardiac pulse in a patient is determined by evaluating physiological signals in the patient. In one embodiment, a medical device evaluates two or more different physiological signals, such as phonocardiogram (PCG) signals, electrocardiogram (ECG) signals, patient impedance signals, piezoelectric signals, and accelerometer signals for features indicative of the presence of a cardiac pulse. Using these features, the medical device determines whether a cardiac pulse is present in the patient. The medical device may also be configured to report whether the patient is in a VF, VT, asystole, or PEA condition, in addition to being in a pulseless condition, and prompt different therapies, such as chest compressions, rescue breathing, defibrillation, and PEA-specific electrotherapy, depending on the analysis of the physiological signals. Auto-capture of a cardiac pulse using pacing stimuli is further provided.02-02-2012
20120029367HEART RATE WATERPROOF MEASURING APPARATUS - A biofeedback device and the reflected infrared sensor used thereby are described herein that can be mounted on or integrated with eyewear such as swimming goggles. The biofeedback device includes a heart rate measuring apparatus comprising a reflected infrared sensor, a microcontroller comprising one or more filters and one or more amplifiers, a power source in electrical communication with the heart rate measuring apparatus, and a user interface. The reflected infrared sensor is positionable to detect heart rate from the temporal artery in the head. Heart rate is then communicated to the user by one or more tactile, auditory, or visual signal elements, such as a light-emitting diode display mounted within the goggles so as to be visible to the user while swimming.02-02-2012
20120095353PULSE WAVE ANALYSIS DEVICE AND RECORDING MEDIUM - A pulse wave analysis device stores a pulse waveform for multiple beats, and calculates a pulse wave analysis index by analyzing the pulse waveform for multiple beats. In the calculation of the pulse wave analysis index, pulse waveform shapes of each beat that constitute the pulse waveform for multiple beats are integrated, and beats for which a degree of approximation between the integrated pulse waveform shape and the pulse waveform shape of the beat is low are excluded as targets of calculation of the pulse wave analysis index.04-19-2012

Patent applications in class Detecting blood vessel pulsation

Patent applications in all subclasses Detecting blood vessel pulsation