Pulse Indicator Patents (Class 600/502)
  • Patent number: 10133389
    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.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: November 20, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Hongjo Shim, Hyunwoo Kim, Myungwon Kim, Youngmo Kim
  • Patent number: 10059250
    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.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: August 28, 2018
    Assignee: JOYSON SAFETY SYSTEMS ACQUISITION LLC
    Inventors: Jason Carl Lisseman, Valerie Dawn Gardner, Dwayne Van'tZelfde, Erick Paul Staszak, Norbert Hubert Mueller, David William Andrews
  • Patent number: 9995775
    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.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: June 12, 2018
    Assignee: FOURTH MILITARY MEDICAL UNIVERSITY
    Inventors: Xiuzhen Dong, Xuyang Huo, Fusheng You, Xuetao Shi, Feng Fu, Ruigang Liu, Zhenyu Ji, Canhua Xu, Bin Yang, Min Yang, Jiaxue Qi, Wen Zhang, Nan Wang
  • Patent number: 9936920
    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.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: April 10, 2018
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: Jens Muehlsteff
  • Patent number: 9821703
    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.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: November 21, 2017
    Assignee: TK Holdings, Inc.
    Inventors: Jason Carl Lisseman, Valerie Dawn Gardner, Dwayne Van'tZelfde, Erick Paul Staszak, Norbert Hubert Mueller, David William Andrews
  • Patent number: 9815406
    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.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: November 14, 2017
    Assignee: TK Holdings, Inc.
    Inventors: Jason Carl Lisseman, Valerie Dawn Gardner, Dwayne Van'tZelfde, Erick Paul Staszak, Norbert Hubert Mueller, David William Andrews
  • Patent number: 9782088
    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.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: October 10, 2017
    Assignee: KOREA INSTITUTE OF ORIENTAL MEDICINE
    Inventors: Young Min Kim, Jae Uk Kim, Young Ju Jeon, Jong Yeol Kim, Si Woo Lee
  • Patent number: 9776551
    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.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: October 3, 2017
    Assignee: TK Holdings, Inc.
    Inventors: Jason Carl Lisseman, Valerie Dawn Gardner, Dwayne Van'tZelfde, Erick Paul Staszak, Norbert Hubert Mueller, David William Andrews
  • Patent number: 9730640
    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.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: August 15, 2017
    Assignee: MASIMO CORPORATION
    Inventors: Mohamed K. Diab, Ammar Al-Ali
  • Patent number: 9375629
    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.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: June 28, 2016
    Assignee: Gusto Technologies, Inc.
    Inventors: Shane Schieffer, Lucas Schieffer, Andrew Hamilton
  • Patent number: 9220425
    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.
    Type: Grant
    Filed: September 17, 2012
    Date of Patent: December 29, 2015
    Assignee: Magnetecs Corp.
    Inventors: Yehoshua Shachar, Eli Gang
  • Patent number: 9167970
    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.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: October 27, 2015
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Gabriele Gratton, Monica Fabiani, Kathy Low, Edward Maclin
  • Patent number: 9066680
    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.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: June 30, 2015
    Assignee: MASIMO CORPORATION
    Inventors: Ammar Al-Ali, Anmol B. Majmudar, Eric Karl Kinast, Michael O'Reilly
  • Patent number: 9060700
    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.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: June 23, 2015
    Assignee: Ingo FLORE
    Inventors: Ok Kyung Cho, Yoon Ok Kim
  • Publication number: 20150126881
    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.
    Type: Application
    Filed: January 9, 2015
    Publication date: May 7, 2015
    Inventors: Takashi OGIUE, Tadasuke Kotaki, Sumio Yamada
  • Patent number: 9011343
    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.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: April 21, 2015
    Assignee: Citizen Holdings Co., Ltd.
    Inventor: Hideki Shimizu
  • Publication number: 20150105630
    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.
    Type: Application
    Filed: October 10, 2013
    Publication date: April 16, 2015
    Inventors: STEVEN ALFRED KUMMERL, ANURAAG MOHAN, VIOLA SCHAFFER
  • Patent number: 9005129
    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.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: April 14, 2015
    Assignee: Fitbit, Inc.
    Inventors: Subramaniam Venkatraman, Shelten Gee Jao Yuen
  • Patent number: 8968193
    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.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: March 3, 2015
    Assignee: Covidien LP
    Inventors: Li Li, Scott Amundson, James Ochs
  • Patent number: 8954127
    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.
    Type: Grant
    Filed: December 22, 2012
    Date of Patent: February 10, 2015
    Assignee: Nellcor Puritan Bennett Ireland
    Inventors: James Nicholas Watson, Paul Stanley Addison, Braddon M. Van Slyke
  • Patent number: 8948834
    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.
    Type: Grant
    Filed: March 2, 2005
    Date of Patent: February 3, 2015
    Assignee: Masimo Corporation
    Inventors: Mohamed K. Diab, Esmaiel Kiani-Azarbayjany, Walter M. Weber
  • Patent number: 8942777
    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.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: January 27, 2015
    Assignee: Masimo Corporation
    Inventors: Mohamed K. Diab, Esmaiel Kiani-Azarbayjany, Walter M. Weber
  • Patent number: 8932228
    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.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: January 13, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Shigemi Sato
  • Patent number: 8888708
    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.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: November 18, 2014
    Assignee: Masimo Corporation
    Inventors: Mohamed K. Diab, Rex J. McCarthy
  • Patent number: 8892180
    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.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: November 18, 2014
    Assignee: Masimo Corporation
    Inventors: Walter M. Weber, Ammar Al-Ali, Lorenzo Cazzoli
  • Publication number: 20140323825
    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.
    Type: Application
    Filed: July 7, 2014
    Publication date: October 30, 2014
    Inventors: Ammar Al-Ali, Don Carothers, David Dalke, Mohamed K. Diab, Julian M. Goldman, Massi Joe E. Kiani, Michael Lee, Jerome Novak, Robert A. Smith, Val E. Vaden
  • Patent number: 8845543
    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.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: September 30, 2014
    Assignee: Masimo Corporation
    Inventors: Mohamed K. Diab, Rex J. McCarthy
  • Patent number: 8840562
    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.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: September 23, 2014
    Assignee: Covidien LP
    Inventors: Edward M. McKenna, Daniel Jon Peters
  • Publication number: 20140276148
    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.
    Type: Application
    Filed: October 24, 2012
    Publication date: September 18, 2014
    Inventor: Jae H. Kim
  • Patent number: 8838196
    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.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: September 16, 2014
    Assignee: Covidien LP
    Inventor: Paul D. Mannheimer
  • Patent number: 8827917
    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.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: September 9, 2014
    Assignee: Nelleor Puritan Bennett Ireland
    Inventors: James Watson, Paul Stanley Addison
  • Patent number: 8812245
    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.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: August 19, 2014
    Assignee: HeartFlow, Inc.
    Inventor: Charles A. Taylor
  • Patent number: 8812246
    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.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: August 19, 2014
    Assignee: HeartFlow, Inc.
    Inventor: Charles A. Taylor
  • Patent number: 8801622
    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.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: August 12, 2014
    Assignee: Covidien LP
    Inventor: Clark R. Baker, Jr.
  • Patent number: 8801621
    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.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: August 12, 2014
    Assignee: Konica Minolta Sensing, Inc.
    Inventors: Kazumi Kitajima, Yoshiroh Nagai
  • Patent number: 8777866
    Abstract: A pulse rate counting device includes: a short-term average value calculation unit for calculating an average interval of predetermined previous pulses; a fluctuation amount calculation device for calculating the amount of fluctuation on the basis of the difference between the average interval and an actual pulse wave interval; a search range determination unit for calculating the width of the search range, calculating an amount of displacement on the basis of a time change of the average interval, and determining as a search range a range including an appearance prediction value of the next detection point calculated from the average interval and indicated by the width of the search range from a starting point determined on the basis of the amount of displacement; and a pulse wave interval detection unit for detecting the detection point in the determined search range, and outputting a pulse wave interval.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: July 15, 2014
    Assignee: Fujitsu Limited
    Inventor: Chikako Matsumoto
  • Publication number: 20140194756
    Abstract: There is provided a biological rhythm disturbance degree calculating device, including a physiological index time series data acquiring unit which acquires time series data of a physiological index calculated from a biomedical signal of a subject, a calculation period deciding unit which decides a calculation period which is a time length corresponding to substantially a half of a cycle with which daily-life physiological index time series data calculated from the biomedical signal measured in daily life fluctuates, a calculating unit which calculates, during the calculation period, a phase shift amount between inspected physiological index time series data calculated from the biomedical signal measured during an inspection and the daily-life physiological index time series data, and a disturbance degree deciding unit which decides a disturbance degree of a biological rhythm during the inspection of the subject based on the phase shift amount.
    Type: Application
    Filed: May 14, 2012
    Publication date: July 10, 2014
    Applicant: Sony Corporation
    Inventor: Naoya Sazuka
  • Publication number: 20140135635
    Abstract: A system for determining a physiological signal of a person supported by a person support apparatus using signals from force transducers is described herein. Force transducers communicate with a controller to transmit signals indicative of weight acting on them. The controller determines blood volume pulse information from the signals received from the force transducers. Heart rate and respiratory rate information is derived from the blood volume pulse information.
    Type: Application
    Filed: November 1, 2013
    Publication date: May 15, 2014
    Applicant: Hill-Rom Services, Inc.
    Inventor: Irvin J. Vanderpohl, III
  • Publication number: 20140128755
    Abstract: The present invention includes a system and method for detecting a pulse. The system includes a sound sensor unit device having a self-adhesive material and a sensor body with a sound chamber, a power source, a MEMS microphone and a transmitting device. The sensor unit wirelessly sends a first signal to a remote unit adapted to receive the first signal.
    Type: Application
    Filed: November 8, 2012
    Publication date: May 8, 2014
    Inventors: Quinn Snyder, Nolan R. Morris, Douglas A. Morris
  • Patent number: 8718737
    Abstract: A method and an apparatus measure blood oxygenation in a subject. A light source is activated to cause a first emission at a first wavelength and a second emission at a second wavelength. A detector detects a composite signal indicative of an attenuation of the first and second wavelengths by tissue of a patient. The composite signal is demodulated into a first intensity signal and a second intensity signal. Blood oxygenation in the subject is determined from the first and second intensity signals.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: May 6, 2014
    Assignee: Masimo Corporation
    Inventors: Mohamed K. Diab, Walter M. Weber, Ammar Al-Ali
  • Patent number: 8696580
    Abstract: The disclosed is an arteriosclerosis evaluating apparatus capable of easily separating pulse wave data detected at one measurement site into an incident wave and a reflected wave and capable of easily determining and evaluating the degree of arteriosclerosis. The pulse wave transmitted through an artery is detected at one site of a living body by a pulse wave detection device, and the detected pulse wave is fitted with a fitting function by a breakdown device so that the detected pulse wave can be broken down into an incident wave and a reflected wave. The degree of arteriosclerosis is evaluated from the amplitude intensities (i.e., peak intensities) of the incident wave and the reflected wave broken down from the pulse wave.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: April 15, 2014
    Assignees: The Doshisha, Murata Manufacturing Co., Ltd.
    Inventors: Mami Matsukawa, Yoshiaki Watanabe, Masashi Saito, Takaaki Asada, Mio Furuya
  • Patent number: 8696585
    Abstract: According to embodiments, techniques for detecting probe-off events are disclosed. A sensor or probe may be used to obtain a plethysmograph or photoplethysmograph (PPG) signal from a subject. A wavelet transform of the signal may be performed and a scalogram may be generated based at least in part on the wavelet transform. One or more characteristics of the scalogram may be determined. The determined characteristics may include, for example, an energy decrease, a broadscale high-energy cone, a regular, repeated high-scale pattern, a low-scale information pattern; and a pulse band. The absence or presence of these and other characteristics, along with information about the characteristics, may be analyzed to detect a probe-off event. A confidence indicator may be calculated in connection with probe-off event detections and alarms may be generated when probe-off events occur.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: April 15, 2014
    Assignee: Nellcor Puritan Bennett Ireland
    Inventors: Paul Stanley Addison, James Nicholas Watson
  • Patent number: 8679027
    Abstract: 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.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: March 25, 2014
    Assignee: Nellcor Puritan Bennett Ireland
    Inventors: Paul Stanley Addison, James Nicholas Watson
  • Publication number: 20140081161
    Abstract: A pulse data detecting apparatus, pulse data detecting method, and pulse data detection program are provided capable of suppressing an influence of the condition of the body surface to be measured and obtaining an appropriate measurement result under a wide range of conditions. In the present invention, a blood-flow-suppressing-projection protrusion-control mechanism section causes a blood-flow-suppressing projection to protrude to press or compress the body surface to suppress a blood flow on a downstream side, thereby increasing a blood pressure of a measurement region at the time of measurement. A light-receiving element receives reflected light of light applied from a light-emitting element to a skin surface, and outputs an electrical signal. Increasing the blood pressure of the measurement region enables to obtain an output signal at a sufficient output level from the light-receiving element. A CPU calculates a pulse rate based on the output signal from the light-receiving element.
    Type: Application
    Filed: September 16, 2013
    Publication date: March 20, 2014
    Applicant: Casio Computer Co., Ltd.
    Inventor: Toshiya KUNO
  • Publication number: 20140073869
    Abstract: A physiological monitoring system may determine physiological information, such as physiological rate information, from a physiological signal. The system may generate a window of physiological data, and determine the physiological information based on the window of data. The system may use status indicators to determine when the window of data is to be updated with new data. The status indicator may include, for example, a gain change indicator, indicating a change in gain in an amplifier. Based on the status indicator, the system may, for example, set a period of time during which current physiological data is not added to the window of data. The system may smooth the transition of the physiological data before and after the period of time.
    Type: Application
    Filed: September 11, 2012
    Publication date: March 13, 2014
    Applicant: Nellcor Puritan Bennett LLC
    Inventors: Fernando Rodriguez-Llorente, Pirow Engelbrecht, Nicholas James Wooder
  • Publication number: 20140073975
    Abstract: A physiological monitoring system may process a physiological signal such a photoplethysmograph signal from a subject. The system may determine physiological information, such as a physiological rate, from the physiological signal. The system may use search techniques and qualification techniques to determine one or more initialization parameters. The initialization parameters may be used to calculate and qualify a physiological rate. The system may use signal conditioning to reduce noise in the physiological signal and to improve the determination of physiological information. The system may use qualification techniques to confirm determined physiological parameters. The system may also use autocorrelation techniques, cross-correlation techniques, fast start techniques, and/or reference waveforms when processing the physiological signal.
    Type: Application
    Filed: September 11, 2012
    Publication date: March 13, 2014
    Applicant: NELLCOR PURITAN BENNETT LLC
    Inventors: Pirow Engelbrecht, Fernando Rodriguez-Llorente, Nicholas James Wooder
  • Publication number: 20140073974
    Abstract: A physiological monitoring system may process a physiological signal such a photoplethysmograph signal from a subject. The system may determine physiological information, such as a physiological rate, from the physiological signal. The system may use search techniques and qualification techniques to determine one or more initialization parameters. The initialization parameters may be used to calculate and qualify a physiological rate. The system may use signal conditioning to reduce noise in the physiological signal and to improve the determination of physiological information. The system may use qualification techniques to confirm determined physiological parameters. The system may also use autocorrelation techniques, cross-correlation techniques, fast start techniques, and/or reference waveforms when processing the physiological signal.
    Type: Application
    Filed: September 11, 2012
    Publication date: March 13, 2014
    Applicant: NELLCOR PURITAN BENNETT LLC
    Inventor: Pirow Engelbrecht
  • Publication number: 20140073877
    Abstract: A physiological monitoring system may process a physiological signal such a photoplethysmograph signal from a subject. The system may determine physiological information, such as a physiological rate, from the physiological signal. The system may use search techniques and qualification techniques to determine one or more initialization parameters. The initialization parameters may be used to calculate and qualify a physiological rate. The system may use signal conditioning to reduce noise in the physiological signal and to improve the determination of physiological information. The system may use qualification techniques to confirm determined physiological parameters. The system may also use autocorrelation techniques, cross-correlation techniques, fast start techniques, and/or reference waveforms when processing the physiological signal.
    Type: Application
    Filed: September 11, 2012
    Publication date: March 13, 2014
    Applicant: NELLCOR PURITAN BENNETT LLC
    Inventor: Nicholas James Wooder
  • Patent number: 8647283
    Abstract: 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.
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: February 11, 2014
    Assignee: The Matsumoto Institute of Leading Edge of Technology Ltd.
    Inventors: Hiroshi Matsumoto, Kazuko Komatsu
  • Patent number: 8632471
    Abstract: 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.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: January 21, 2014
    Inventors: Sang Suk Lee, Sang Dae Choi, Myoung Chone An, Young Kuen Choi, Ki Wang Kim, Dal Ho Park, Do Gwun Hwang, Soo Yong Ahn, Mi Sun Kim, Hyun Sook Lee, Hyeon Ho Kim