Detecting Respiratory Condition Patents (Class 600/484)
  • Patent number: 10314504
    Abstract: Methods and devices for correcting electrocardiogram (EKG) indication saturation may include receiving an EKG indication from at least one sensor and determining that a saturation condition has been met in response to receiving the EKG indication. Additionally, the methods and devices may include incrementing an EKG saturation level based on a determination that the saturation condition has been met. Moreover, the methods and devices may include determining whether the EKG saturation level satisfies an EKG saturation threshold. The methods and device may include disregarding at least a second EKG indication in accordance with a determination that the saturation level satisfies the EKG saturation threshold. The methods and devices may further include transmitting the second EKG indication to an output device in accordance with a determination that the saturation level does not satisfy the EKG saturation threshold.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: June 11, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Haithem Albadawi, Chris Reidy, Zongyi Liu
  • Patent number: 10314532
    Abstract: Non-invasive monitoring of cardiovascular health is performed by monitoring changes in the volume of blood in the venous side of the vascular system. The blood volume changes are determined from measurements of bioimpedance of limbs or neck, in particular changes in bioimpedance in response to blood modulating events performed on the limbs or neck, where bioimpedance is measured and compared before and after such events.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: June 11, 2019
    Assignee: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
    Inventors: Kevin Ward, Mohamad Hakam Tiba, James M. Blum
  • Patent number: 10292622
    Abstract: A device and method for bioimpedance spectrography corrects for breathing artifacts. A breathing signal is used in conjunction with an impedance signal to adjust for a point in time within a respiratory cycle of a user at which the measurements are made. The correction allows the device to characterize tissue parameters accurately with fewer measurement points.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: May 21, 2019
    Assignee: Koninklijke Philips N.V.
    Inventors: Illapha Gustav Lars Cuba Gyllensten, Alberto Giovanni Bonomi, Jarno Mikael Riistama, Jennifer Caffarel, Harald Reiter
  • Patent number: 10288499
    Abstract: A process for manufacturing a fabric pressure sensor comprises cutting a sensing fabric to a pre-determined size, connecting a flexible electric wire with a wire of the sensing fabric by sewing, fixing the sensing fabric by means of a clamping positioner at a pre-determined tension, bonding a lower conversion layer with the sensing fabric by means of a lower conversion layer positioning box, bonding an adjustable column with the sensing fabric by means of an upper conversion layer positioning box, and bonding the upper conversion layer with the adjustable column by means of the upper conversion layer positioning box. A tool for manufacturing the sensor comprises an electrical property measuring device, a wire connecting tool, and a sensor structural component assembling tool. The present invention provides an easy and convenient way of manufacturing a fabric pressure sensor, monitoring the quality of manufacture, and enhancing the manufacturing precision and product yield.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: May 14, 2019
    Assignee: THE HONG KONG RESEARCH INSTITUTE OF TEXTILES AND APPAREL LIMITED
    Inventors: Xiaoming Tao, Tao Hua, Yangyong Wang, Qiao Li, Yee Kwan Chow
  • Patent number: 10278607
    Abstract: A system and method for presenting information relating to heart data can involve operations including identifying arrhythmia events in physiological data obtained for a living being, receiving human assessments of at least a portion of the arrhythmia events, determining a measure of correlation between the human assessments and the identified events, and selectively presenting information regarding the identified events based on the measure of correlation. The operations can also include identifying atrial fibrillation events in physiological data obtained for a living being, obtaining heart rate data for the living being, and presenting information regarding the heart rate data and duration of the atrial fibrillation events together with a common time scale to pictographically represent heart rate trend with atrial fibrillation burden during a defined time period.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: May 7, 2019
    Assignee: BRAEMAR MANUFACTURING, LLC
    Inventors: Eric N. Prystowsky, Lev Korzinov, Eric Baumann, Scott Denis, Manuel E. Jaime, Justin James
  • Patent number: 10278594
    Abstract: Medical devices and methods for making and using medical devices are disclosed. An example medical device may include a medical device for measuring blood pressure. The medical device may include an elongated shaft having a proximal region and a distal region. An optical fiber may extend along the proximal region. An optical pressure sensor may be coupled to the optical fiber. The medical device may also include a tubular member having a proximal end disposed adjacent to the optical pressure sensor and a distal portion extending along the distal region of the shaft.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: May 7, 2019
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Gregory Lee, Roger W. McGowan, Jon Kolbrek, Kimberly A. Robertson
  • Patent number: 10271758
    Abstract: A system for providing information about a patient's heart, the system including one or more catheters that receive intracardiac signals from electrical activity of the heart over one or more heart beat cycles and an electronic processor coupled to the one or more catheters. The electronic processor to: receive the intracardiac signals from the one or more catheters; preprocess the intracardiac signals to provide preprocessed signals, wherein each of the intracardiac signals is preprocessed to provide a corresponding preprocessed signal; and compare the preprocessed signals to a set of signals to determine a degree of similarity between each of the preprocessed signals and the set of signals.
    Type: Grant
    Filed: September 25, 2016
    Date of Patent: April 30, 2019
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Brian Stewart, Doron Harlev, Nathan H. Bennett
  • Patent number: 10258273
    Abstract: Embodiments of the present invention are directed to a computer-implemented method for stress monitoring. Methods include receiving, by a processor, a plurality of user stress labels corresponding to a plurality of events. Methods also include determining an individualized stress profile based at least in part upon the user stress labels. Methods also include receiving heart rate sensor data from a wearable device. Methods also include extracting a cardiovascular feature from the heart rate sensor data. Methods also include determining a stress index based at least in part upon the individualized stress profile and the cardiovascular feature. Methods also include outputting the stress index.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: April 16, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Hung-yang Chang, Tian Hao, Kun Lin, Xinxin Zhu
  • Patent number: 10226225
    Abstract: A method of identifying a breath comprises sensing a signal generated by a living human or animal body and separating the signal into a plurality of frequency bands to identify a breath candidate.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: March 12, 2019
    Assignee: ACURABLE LIMITED
    Inventors: Esther Rodriguez-Villegas, Eduardo Aguilar Pelaez, Guangwei Chen
  • Patent number: 10194810
    Abstract: Apparatus for monitoring a clinical condition of a subject is described. At least one motion sensor detects motion of the subject and generates a sensed motion signal responsive to the sensed motion. A signal analyzer is adapted to determine a heartbeat-related signal from the sensed motion signal, to determine a first breathing-rate-related signal from the heartbeat-related signal, and to determine a second breathing-rate-related signal directly from the sensed motion signal. The signal analyzer determines the validity of the heartbeat-related signal by comparing the first breathing-rate-related signal with the second breathing-rate-related signal. Other applications are also described.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: February 5, 2019
    Assignee: EARLYSENSE LTD.
    Inventors: Avner Halperin, Yossi Gross
  • Patent number: 10188345
    Abstract: A method and apparatus for providing biofeedback during a meditation exercise are disclosed. In one aspect, the wearable device includes one or more biometric sensors and a user interface. The method may involve prompting the user, via the user interface, to perform a meditation exercise, the meditation exercise being associated with a target physiological metric related to the physiology of the user. The method may involve measuring, based on output of at least one of the one or more biometric sensors, a physiological metric of the user during the meditation exercise. The method may involve determining a performance score indicating the user's performance during the meditation exercise based on comparing the measured physiological metric with the target physiological metric. The method may involve providing, via the user interface, based on the performance score, feedback information indicative of the user's performance during the meditation exercise.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: January 29, 2019
    Assignee: Fitbit, Inc.
    Inventors: Subramaniam Venkatraman, Alexandros Pantelopoulos
  • Patent number: 10149624
    Abstract: According to an aspect, there is provided a method for measuring the intracranial pressure, ICP, in a subject, the method comprising detecting whether spontaneous retinal venous pulsations, SRVPs, are occurring in an eye of the subject as the orientation of the head of the subject changes; identifying the orientation of the head of the subject at which SRVPs start to occur or stop occurring; and using the identified orientation of the head of the subject at which SRVPs start to occur or stop occurring to determine the ICP in the subject.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: December 11, 2018
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Maarten Kuenen, Ihor Kirenko, Koray Karakaya, Ronald Aarts
  • Patent number: 10143395
    Abstract: A system and method for detecting arrhythmic electrocardiogram (ECG) signals includes defining a plurality of threshold heart rates and rate-dependent sensitivity levels for detecting arrhythmic ECG episodes, wherein more clinically relevant heart rates are assigned rate-dependent sensitivity levels with higher sensitivities. ECG signals are monitored by a medical device, and monitored ECG signals are processed using the plurality of threshold heart rates and rate-dependent sensitivity levels to detect and capture arrhythmic ECG segments.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: December 4, 2018
    Assignee: MEDTRONIC MONITORING, INC.
    Inventors: Niranjan Chakravarthy, Rodolphe Katra
  • Patent number: 10098578
    Abstract: An alertness device includes: a respiration sensor that obtains respiratory data of a person; a calculation unit; a waveform generation unit that generates a respiratory interval (RI) waveform which is a transition in a predetermined time period of an RI which is an interval for one respiration; and a determination unit. The calculation unit calculates an average value of the RI and RrMSSDn in a predetermined time period. In a case where an average value of the subsequent RI is greater than an average value of the RI directly previous to the subsequent RI and in a case where the RrMSSDn of the subsequent RI is greater than a value which is obtained by multiplying the RrMSSDn of the previous RI by a constant ?, the determination unit determines on the basis of values calculated by the calculation unit that the person is in a state of low alertness.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: October 16, 2018
    Assignees: TS Tech Co., Ltd., Public University Corporation Nagoya City University
    Inventors: Shinji Sugiyama, Takayoshi Ito, Kiyoko Yokoyama, Issey Takahashi
  • Patent number: 10086165
    Abstract: The present invention provides a kit comprising a unibody auscultation interface for use with mechanical ventilation or intubation, formed from a single contiguous nonmetallic piece, the piece being shaped into a cylindrical member having opposing ends respectively adapted to frictionally connect to the external end of an endotracheal tube and either the stem of a Y piece or the patient end of a common conduit, the cylindrical member having an opening in its wall, the perimeter of which seamlessly elaborates a flared turret whose roof is adapted for non-adherent contact with the chest piece of a stethoscope; and, packaging moans for enclosing the auscultation interface aseptically. The present invention additionally provides an endotracheal tube, Y piece, breathing circuit and mechanical ventilation system incorporating the auscultation interface.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: October 2, 2018
    Inventor: John F. Mathews
  • Patent number: 10058288
    Abstract: A wearable ECG system includes a plurality of electrodes; a multiplexor, the multiplexor including an input port, two output ports, and a control port, the input port of the multiplexor being connected with the electrodes; an analog detection module being connected with one output port of the multiplexor; a digital detection module being connected with the other output port of the multiplexor; a processor being connected with the control port of the multiplexor and the digital detection module; and a motion detection module connected with the processor and configured to detect acceleration of the wearable ECG system and output an electrical signal accordingly. The processor is configured to receive the electrical signal from the motion detection module, and control the multiplexor to selectively transmit output of the electrodes to the analog detection module or the digital detection module based on the electrical signal.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: August 28, 2018
    Assignee: SHENZHEN DANSHA TECHNOLOGY CO., LTD.
    Inventor: Chunlian Deng
  • Patent number: 10062457
    Abstract: Methods for providing predictive notifications to a monitoring device are provided. In one aspect, a method includes receiving retrospective patient data collected from a plurality of medical devices, and determining, based on a comparison of the retrospective patient data with current patient data for a patient from a medical device, a likelihood of a potential adverse medical event occurring for the patient. The method also includes providing a notification to a monitoring device indicative of the potential adverse medical event for the patient. Systems, graphical user interfaces, and machine-readable media are also provided.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: August 28, 2018
    Assignee: CareFusion 303, Inc.
    Inventor: Federico Garibaldi
  • Patent number: 10050700
    Abstract: Systems and methods for managing communication strategies between implanted medical devices. Methods include temporal optimization relative to one or more identified conditions in the body. A selected characteristic, such as a signal representative or linked to a biological function, is assessed to determine its likely impact on communication capabilities, and one or more communication strategies may be developed to optimize intra-body communication.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: August 14, 2018
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Jacob M. Ludwig, Michael J. Kane, Brendan E. Koop, William J. Linder, Keith R. Maile, Jeffrey E. Stahmann
  • Patent number: 10010264
    Abstract: Systems and methods for quantifying the likelihood of the contribution of multiple possible forms of chronic disease to patient reported dyspnea can include the testing protocol having a flow/volume loop, performed at rest, flowed by the measurement of cardiopulmonary exercise gas exchange variables during rest, exercise and recovery as unique data sets. The data sets are analyzed using feature extraction steps to produce a pictorial image consisting of disease silos displaying the likelihood of the contribution of various chronic diseases to patient reported dyspnea. In some embodiments, the silos are split into subclass silos. In some embodiments, multiple chronic disease indexes are used to differentiate between sub-types of a particular chronic disease (e.g., differentiating WHO 1 PH from WHO 2 or WHO 3 PH). Test results are plotted serially to asses to provide feedback to the physician on the efficacy of therapy provided to the patient.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: July 3, 2018
    Assignee: Shape Medical Systems, Inc.
    Inventors: Stephen T. Anderson, Dean J. MacCarter, David M. Anderson, Andrew Hofmeister
  • Patent number: 9955880
    Abstract: A physiological parameter measurement device comprising a processor and a video processing module coupled to the processor to divide each of a plurality of frames of a video into a plurality of blocks, where the video is of a body part of a subject whose physiological parameter is to be determined. The video processing module further is to select a block having highest peak signal to noise ratio (PSNR) from amongst the plurality of blocks. Further, the video processing module is to extract a photoplethysmogram (PPG) signal from the video based on a block identifier associated with the block. The physiological parameter measurement device further comprises a signal enhancement module coupled to the processor, to process the PPG signal to obtain an enhanced PPG signal for determining a value of the physiological parameter for the subject.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: May 1, 2018
    Assignee: Tata Consultancy Services Limited
    Inventors: Aishwarya Visvanathan, Arpan Pal, Aniruddha Sinha, Rohan Banerjee, Anirban Dutta Choudhury, Aditi Mishra, Avik Ghose
  • Patent number: 9907487
    Abstract: The subject matter discloses a noninvasive method and device for detection, measurement and monitoring of Pulmonary Interstitial fluid—Extravascular Lung Water —volumes in inpatient settings: Intensive Care Units, Emergency Rooms, Internal Hospital Departments, and daily monitoring of chronic patient in outpatient settings: outpatient departments, rehab centers and Home monitoring. The disclosed method is based on the analysis of lung tissue thermodynamic properties, and their deviation from normal value. The device measures the rate of temperature change of a lung tissue by measuring the exhaled gas temperature changing rate during cooling/heating of lung tissue. The cooling/heating of lung tissue may be achieved by prompt changing one of the inhaled gas parameters temperature, and/or humidity, and/or rate of breathing, and/or tidal volume, and/or type of gas and etc. The change is performed at the beginning of measurement, and is kept during entire measurement time.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: March 6, 2018
    Inventors: Alexander Gelfand, Konstantin Goulitski
  • Patent number: 9886190
    Abstract: Techniques and systems are described that enable improved gesture discernment from input devices, as well as simplified modeling and processing of gestures by application software layers. Given data (e.g., about movements, actions, or events) gathered from input devices, techniques and systems allow gestures to be discerned and inferred more formally and reliably, and processed more easily by an application layer. A gesture interpreter is provided that, in response to receiving an activation input data from an input device, instantiates a high-level Petri Net instance, executes the high-level Petri Net instance, and returns, to an application layer, an outcome gesture indicative of a terminal node in a path of the high-level Petri Net instance being traversed during the execution of the high-level Petri Net instance.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: February 6, 2018
    Assignee: The Florida International University Board of Trustees
    Inventors: Francisco Raul Ortega, Naphtali David Rishe, Armando Bennett Barreto
  • Patent number: 9877684
    Abstract: A physiological monitoring system features a Floormat and Handheld Sensor connected by a cable. A user stands on the Floormat and grips the Handheld Sensor. These components measure time-dependent physiological waveforms from a user over a conduction pathway extending from the user's hand or wrist to their feet. The Handheld Sensor and Floormat use a combination of electrodes that inject current into the user's body and collect bioelectric signals that, with processing, yield ECG, impedance, and bioreactance waveforms. Simultaneously, the Handheld Sensor measures photoplethysmogram waveforms with red and infrared radiation and pressure waveforms from the user's fingers and wrist, while the Floormat measures signals from load cells to determine ‘force’ waveforms to determine the user's weight, and ballistocardiogram waveforms to determine parameters related to cardiac contractility.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: January 30, 2018
    Assignee: TOSENSE, INC.
    Inventors: Matthew Banet, Marshal Singh Dhillon, Susan Meeks Pede, Lauren Nicole Miller Hayward, Arthur Deptala, Jonas Dean Cochran, Mark Singh Dhillon
  • Patent number: 9848788
    Abstract: A stand-on physiological sensor (e.g. floormat) measures vital signs and various hemodynamic parameters, including blood pressure and ECG waveforms. The sensor is similar in configuration to a common bathroom scale and includes electrodes that take electrical measurements from a patient's feet to generate bioimpedance waveforms, which are analyzed digitally to extract various other parameters, as well as a cuff-type blood pressure system that takes physical blood pressure measurements at one of the patient's feet. Blood pressure can also be calculated/derived from the bioimpedance waveforms. Measured parameters are transmitted wirelessly to facilitate remote monitoring of the patient for heart failure, chronic heart failure, end-stage renal disease, cardiac arrhythmias, and other degenerative diseases.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: December 26, 2017
    Assignee: TOSENSE, INC.
    Inventors: Matthew Banet, Marshal Singh Dhillon, Susan Meeks Pede, Lauren Nicole Miller Hayward, Arthur Deptala, Jonas Dean Cochran
  • Patent number: 9833585
    Abstract: Systems and methods for improving the heart rate coherence and/or heart rate variability of a subject use a respiratory therapy device to provide breathing cues that prompt a subject to breathe such that various respiratory and coronary parameters are aligned, for example in phase.
    Type: Grant
    Filed: May 21, 2013
    Date of Patent: December 5, 2017
    Assignee: Koninklijke Philips N.V.
    Inventor: John Michael Cosnek
  • Patent number: 9826955
    Abstract: According to embodiments of the present invention, an air conduction sensor for detecting a sound from a user is provided. The air conduction sensor includes a housing comprising an opening, wherein a rim of the opening is configured to at least substantially attach to a skin or a clothing of the user; a microphone coupled to the housing such that there is an air gap between the microphone and the skin or the clothing, and wherein the microphone is configured to detect the sound. A system and a method for monitoring a health condition of a user are also provided.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: November 28, 2017
    Assignee: Nanyang Technological University
    Inventors: Wee Ser, Jianmin Zhang, Jufeng Yu, Tongtong Zhang
  • Patent number: 9826082
    Abstract: A system and method for sensing a user presence via thermal signature sensing employs adaptive filtering of a motion spectrum to discern a user presence signature over background thermal noise. In an embodiment, adaptive sub-band filters are applied within the motion spectrum, and a user presence is indicated by the presence of a thermal signature having at least a predetermined magnitude or profile within any searched sub-band. In an embodiment, a low pass filter is applied to search for a stationary presence if the sub-band search procedure does not yield a user thermal signature.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: November 21, 2017
    Assignee: Motorola Mobility LLC
    Inventors: Rachid M Alameh, Adam J Bousley, Thomas Y Merrell
  • Patent number: 9814429
    Abstract: Disordered breathing events may be classified as central, obstructive or a combination of central an obstructive in origin based on patient motion associated with respiratory effort. Central disordered breathing is associated with disrupted respiration with reduced respiratory effort. Obstructive disordered breathing is associated with disrupted respiration accompanied by respiratory effort. A disordered breathing classification system includes a disordered breathing detector and a respiratory effort motion sensor. Components of the disordered breathing classification system may be fully or partially implantable.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: November 14, 2017
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Kent Lee, John D. Hatlestad, Qingsheng Zhu, Jeffrey E. Stahmann, Jesse W. Hartley, Quan Ni
  • Patent number: 9808160
    Abstract: A system and method for hemodynamic dysfunction detection may include at least one sensor configured to received one or more signals from a patient, a computing device in data communication with the at least one sensor, a computer-readable storage medium in communication with the computing device, an input device, and an output device. The system may include computer readable instructions to cause the system to receive at least one signal in the time domain from the sensor, determine at least one metric in the frequency domain from the at least one signal in the time domain, and determine the cardiovascular state of the patient from a combination of the at least one metric in the frequency domain and information contained in at least one database of cardiovascular states. The system may also notify a user of a immanent patient cardiovascular event and recommend one or more interventions to mitigate it.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: November 7, 2017
    Assignee: Intelomed, Inc.
    Inventors: Jan K. Berkow, Anne M. Brumfield
  • Patent number: 9808590
    Abstract: The invention relates to a method and device for carrying out a signal-processing viewing of a measurement signal that is correlated with the respiratory activity of an individual, for example, of a measurement signal that is correlated with the respiratory gas. The aim of the invention is to provide solutions with which an improved electronic analysis of the signals that are representative with regard to respiratory activity can be achieved. To this end, the invention provides that viewing results are obtained within the scope of a signal-processing viewing of said measurement signal and make a differentiation between obstructive and central respiratory disorders possible. The viewing results are determined, in particular, while taking into account changes of selected breathing characteristics such as, for example, the change in the ratio of inhalation time to exhalation time.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: November 7, 2017
    Assignee: RESMED R&D GERMANY GMBH
    Inventors: Stefan Rolf Madaus, Jorg Meier, Dieter Heidmann, Hartmut Schneider
  • Patent number: 9788782
    Abstract: Disclosed herein, among other things, are methods and apparatus related to identification of apnea type. One aspect of the present subject matter provides a method for real-time apnea discrimination. The method includes sensing an impedance-based tidal volume signal to monitor a respiratory cycle of a patient, and detecting a reduction in tidal swing using the sensed impendence to detect an apnea event. When the apnea event is detected, a shape of the sensed signal is compared to a stored signal shape to determine whether the apnea event is primarily an obstructive sleep apnea (OSA) event or primarily a central sleep apnea (CSA) event, in various embodiments.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: October 17, 2017
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Pramodsingh Hirasingh Thakur, David J. Ternes, Stephen B. Ruble
  • Patent number: 9719787
    Abstract: The navigation solution of a device may be enhanced by perforating multiple pass smoothing. Forward and backward processing of the input data may be performed to derive interim navigation solutions. One or more quantities of the interim navigation solutions may be combined to smooth the quantities. At least one additional pass of forward and backward processing may then be performed using quantities of the navigation solution that were combined to enhance the interim navigation solutions. Next, at least one uncombined quantity of the navigation solution from the enhanced interim navigation solution is combined to provide an enhanced smoothed navigation solution. Additional passes may be performed to combine other quantities of the navigation solution as desired.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: August 1, 2017
    Assignee: InvenSense, Inc.
    Inventors: Jacques Georgy, You Li, Medhat Omr, Christopher Goodall, Hsui-Wen Chang
  • Patent number: 9693726
    Abstract: An alertness device includes a heart rate sensor configured to obtain an electrocardiographic signal of a person, a calculation unit configured to calculate the electrocardiographic signal obtained from the heart rate sensor, a waveform generation unit configured to generate an RRI waveform from an electrocardiographic waveform of the electrocardiographic signal, and a determination unit configured to determine the alertness of the person based on the electrocardiographic signal. The calculation unit replicates a same number of RRI waveforms as that of anchors, each anchor being a point where a certain RRI is shorter than an adjacent preceding RRI, moves the time axes of the replicated RRI waveforms such that the anchors of the replicated RRI waveforms are in phase with each other, and calculates a PRSA signal defined as an RRI average for each time axis. The determination unit determines the alertness based on the RRIs and the PRSA signals.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: July 4, 2017
    Assignees: TS Tech Co., Ltd., Public University Corporation Nagoya City University
    Inventors: Shinji Sugiyama, Takayoshi Ito, Kiyoko Yokoyama, Issey Takahashi
  • Patent number: 9668713
    Abstract: A cardiac rhythm management system provides for the trending of a third heart sound (S3) index. The S3 index is a ratio, or an estimate of the ratio, of the number of S3 beats to the number of all heart beats, where the S3 beats are each a heart beat during which an occurrence of S3 is detected. An implantable sensor such as an accelerometer or a microphone senses an acoustic signal indicative heart sounds including S3. An S3 detector detects occurrences of S3 from the acoustic signal. A heart sound processing system trends the S3 index on a periodic basis to allow continuous monitoring of the S3 activity level, which is indicative of conditions related to heart failure.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: June 6, 2017
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Krzysztof Z. Siejko, Laura Green, Gerrard M. Carlson
  • Patent number: 9636080
    Abstract: The present invention relates to A system for monitoring the cardiovascular system using a heart sound, which comprises a heart sound receiving means(100) for receiving a heart sound(HS); DSP (Digital Signal Processor) module(200) for converting the heart sound(HS) received from said heart-sound receiving means(100) to a digital signal; and an arithmetic section(300) for calculating phonocardiogram(PCG) from the digital signal converted in the DSP module (200) and calculating information related to a preload or information related to a cardiac contractile force or information related to a respiratory change.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: May 2, 2017
    Assignee: THE ASAN FOUNDATION
    Inventors: Sung-Hoon Kim, Segyeong Joo, Gyu-Sam Hwang
  • Patent number: 9622709
    Abstract: Systems and methods are provided for monitoring a patient during a procedure. A physiological parameter of a patient is monitored during a procedure at an associated sensor. Respective cumulative times are measured for which the monitored physiological parameter of the patient meets each of a plurality of threshold values during the procedure. A risk metric is calculated for the patient, representing an effect of monitored physiological parameter on a patient outcome related to the procedure from the measured cumulative times for which the monitored physiological parameter of the patient met each of the plurality of threshold values.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: April 18, 2017
    Assignee: The Cleveland Clinic Foundation
    Inventors: Wolf H. Stapelfeldt, Marc R. Reynolds, Bhaswati Ghosh
  • Patent number: 9618226
    Abstract: An air-conditioning system integrated with an application program (APP) of a smart portable device comprises at least an air-conditioning controller, an APP and a plurality of air-conditioning devices. The air-conditioning controller comprises a temperature sensor, provided for sensing an environment temperature so as to transmit a temperature signal. The APP is installed on a smart portable device such that the APP can transmit an operation signal to the air-conditioning controller according to the temperature signal via the smart portable device. The air-conditioning controller further transmits a control signal to the plurality of air-conditioning devices such that the air-conditioning devices can be operated according to the control signal.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: April 11, 2017
    Assignee: SHU-TE University
    Inventors: Chih-Yung Chen, Jun-Juh Yan
  • Patent number: 9610026
    Abstract: Devices and methods for detecting physiological target event such as events indicative of HF decompensation status are described. An ambulatory medical device (AMD) can measure bio-impedance, such as thoracic impedance, from a patient. The AMD can receive a specified threshold within a range or a distribution of impedance measurement, or a specified percentile such as less than 50th percentile, and calculate a representative impedance value (ZRep) corresponding to the specified threshold or percentile using a plurality of thoracic impedance measurements. The representative impedance value can be calculated using an adaptation process, or using an estimated distribution of the impedance measurements. The AMD can include a physiologic event detector circuit that can generate a trend of representative impedance values over a specified time period, and to detect a target physiologic event such as indicative of HF decompensation using the trend of representative impedance values.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: April 4, 2017
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Viktoria A. Averina, Pramodsingh Hirasingh Thakur, Robert J. Sweeney, Jonathan Walter Krueger
  • Patent number: 9591986
    Abstract: An apparatus may include a sensing circuit and an arrhythmia detection circuit. The sensing circuit is configured to generate a sensed physiological signal representative of cardiac activity of a subject. The arrhythmia detection circuit is configured to monitor ventricular depolarization (V-V) intervals using the sensed physiological signal, detect when at least a portion of the V-V intervals satisfies an arrhythmia detection threshold interval, calculate a value of variability of the V-V intervals and calculate a value of variability of a systolic portion of the V-V intervals in response to the detection, and generate an indication of atrial fibrillation (AF) according to a comparison including the value of variability of the V-V intervals and the value of variability of the systolic portion of the V-V intervals and provide the indication to at least one of a user or process.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: March 14, 2017
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Barun Maskara, Pramodsingh Hirasingh Thakur, Qi An
  • Patent number: 9545227
    Abstract: A method and system for Sleep Apnea Syndrome (SAS) screening are disclosed. The method comprises detecting at least one physiological signal, converting the at least one physiological signal into at least one sensor stream, and processing the at least one sensor stream to perform the SAS screening. The system includes a sensor to detect at least one physiological signal, a processor coupled to the sensor, and a memory device coupled to the processor, wherein the memory device includes an application that, when executed by the processor, causes the processor to convert the at least one physiological signal into at least one sensor stream and to processor the at least one sensor stream to perform the SAS screening.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: January 17, 2017
    Assignee: VITAL CONNECT, INC.
    Inventors: Nandakumar Selvaraj, Ravi Narasimhan
  • Patent number: 9526437
    Abstract: A collar with an ultra-wideband radar is described. A housing contains sensor electronics and the transmit and receive antennas are located separate from the housing around the circumference of the collar. A first example of the collar includes a first transmit antenna and a first receive antenna. A second example of the collar adds a second transmit antenna and a second receive antenna.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: December 27, 2016
    Assignee: i4C Innovations Inc.
    Inventors: Joe Paul Tupin, Jr., John Michael Couse
  • Patent number: 9522745
    Abstract: Embodiments of the subject matter described herein relate generally to preparing aircraft maintenance application data for retrieval by portable devices. The method or system encompasses different components of the aircraft maintenance domain and meets the requirements of multiple stakeholders each seeking a customized record of aircraft maintenance application data. The method or system is also capable of expansion to support future requirements.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: December 20, 2016
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Pradeep Mahalingaiah, Kannan Kathirvel, Michael Christensen, Rupa Rudrappa
  • Patent number: 9492084
    Abstract: The present invention provides systems and methods for monitoring in real time the physiological status of one or more subjects, especially subject engaged in potentially hazardous or dangerous activities. Systems include wearable items with one or more physiological sensors and a local data unit (LDU) operatively coupled to the sensors. The LDUs digitize and filter sensor data, extract physiological parameters, determine abnormal or not acceptable physiological conditions, and communicate to external monitoring facilities. The external facilities display status and data concerning monitored subjects. In preferred embodiments, communication between the LDUs and the external monitoring facilities dynamically adjusts to the condition of the subjects and to system changes such as subjects and external facilities entering and leaving and/or moving from place to place. The invention also provides program products for performing this invention's methods.
    Type: Grant
    Filed: August 10, 2006
    Date of Patent: November 15, 2016
    Assignee: adidas AG
    Inventors: Andrew Behar, Jeff Cobb, Alex Derchak, Barry Keenan, Dave Darnall
  • Patent number: 9486148
    Abstract: A method and apparatus for estimating depth of anesthesia includes steps of acquiring an ECG signal from a subject, quantifying the regularity of respiratory sinus arrhythmia (RSA) from the ECG signal to obtain an index, and estimating depth of anesthesia based on the index.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: November 8, 2016
    Inventor: Shu-Shya Hseu
  • Patent number: 9474452
    Abstract: A method and a system for quantifying anaesthesia and/or a state of vigilance (e.g. monitoring sedation or sleep) from a plurality of parameters acquired from a subject allows to determine an indicator that reliably quantifies the hypnotic component of anaesthesia and/or the state of vigilance and/or the analgesic component of anaesthesia, even if the number of parameters varies while monitoring the subject. Preferably, a first sub-indicator based on a first subset of parameters adapted to characterize a boundary region between consciousness and unconsciousness is determined, and a second sub-indicator based on a second subset of parameters adapted to characterize a level of hypnosis of said subject is determined, and said first sub-indicator and said second sub-indicator are then combined to compute a global indicator value.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: October 25, 2016
    Assignee: Technische Universitaet Muenchen
    Inventors: Eberhard F. Kochs, Gerhard Schneider, Denis Jordan, Adem Omerovic, Matthias Kreuzer
  • Patent number: 9451886
    Abstract: A probabilistic digital signal processor using data from multiple instruments is described. In one example, an analyzer is configured to: receive discrete first and second input data, related to a first and second sub-system of the system, from a first and second instrument, respectively. A system processor is used to fuse the first and second input data into fused data. The system processor optionally includes: (1) a probabilistic processor configured to convert the fused data into at least two probability distribution functions and (2) a dynamic state-space model, the dynamic state-space model including at least one probabilistic model configured to operate on the at least two probability distribution functions. The system processor iteratively circulates the at least two probability distribution functions in the dynamic state-space model in synchronization with receipt of updated input data, processes the probability distribution functions, and generates an output related to the state of the system.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: September 27, 2016
    Inventor: Rodrigo E. Teixeira
  • Patent number: 9445738
    Abstract: In a cardiographic apparatus (10), a plurality of electrodes (16) are configured for operative connection with a subject (14). A cardiograph (12, 12?, 12?) is connected with the plurality of electrodes to acquire cardiographic data. A respiratory gate (20, 22, 26, 36, 46, 50, 52, 54) is configured to identify end expiration periods or other quiescent respiratory periods so as to generate a cardiographic dataset (30) limited to the identified end-expiration periods from cardiographic data acquired by the cardiograph at least during the identified end expiration periods.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: September 20, 2016
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Eric D. Helfenbein, A. Dean Forbes
  • Patent number: 9408574
    Abstract: A method and apparatus for detection of changes in impedance a patient that includes generating measured impedances, generating an adaptive baseline trend of the measured impedances corresponding to a first time period, generating a short term trend of the measured impedances corresponding to a second time period less than the first time period, determining changes in relative position of the short term trend and the baseline trend, the determined changes in relative position corresponding to determining intersecting of the baseline trend by the short term trend, determining differences between the baseline trend and calculated period average impedances, and accumulating, in response to determining no intersecting of the baseline trend by the short term trend, the determined differences between the baseline trend and the calculated period average impedances.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: August 9, 2016
    Assignee: Medtronic, Inc.
    Inventors: Robert W. Stadler, Li Wang
  • Patent number: 9402563
    Abstract: Disclosed herein, among other things, are methods and apparatus related to identification of apnea type. One aspect of the present subject matter provides a method for real-time apnea discrimination. The method includes sensing an impedance-based tidal volume signal to monitor a respiratory cycle of a patient, and detecting a reduction in tidal swing using the sensed impendence to detect an apnea event. When the apnea event is detected, a shape of the sensed signal is compared to a stored signal shape to determine whether the apnea event is primarily an obstructive sleep apnea (OSA) event or primarily a central sleep apnea (CSA) event, in various embodiments.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: August 2, 2016
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Pramodsingh Hirasingh Thakur, David J. Ternes, Stephen B. Ruble
  • Patent number: 9392997
    Abstract: The invention relates to a device (1) for determining a fertile phase of a woman by ascertaining a CO2 partial pressure in a respiratory gas of the woman in several consecutive breaths, comprising an inlet for receiving the respiratory gas, and an outlet, a sample chamber (2), into which the respiratory gas can be conducted, a measuring module (3) with a measuring element (4) with which a CO2 concentration in the respiratory gas in the sample chamber (2) can be measured, optionally a pressure sensor (5) for measuring an air pressure, a processor (7) for processing measured data obtained by means of the measuring module (3) and the pressure sensor (5), and at least one output unit (9) for outputting a result of the measured data.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: July 19, 2016
    Assignee: Carbomed Medical Solutions GmbH & Co KG
    Inventor: Gert Krammer