Detecting Respiratory Condition Patents (Class 600/484)
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Patent number: 9833585Abstract: 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: GrantFiled: May 21, 2013Date of Patent: December 5, 2017Assignee: Koninklijke Philips N.V.Inventor: John Michael Cosnek
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Patent number: 9826955Abstract: 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: GrantFiled: March 31, 2011Date of Patent: November 28, 2017Assignee: Nanyang Technological UniversityInventors: Wee Ser, Jianmin Zhang, Jufeng Yu, Tongtong Zhang
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Patent number: 9826082Abstract: 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: GrantFiled: February 12, 2015Date of Patent: November 21, 2017Assignee: Motorola Mobility LLCInventors: Rachid M Alameh, Adam J Bousley, Thomas Y Merrell
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Patent number: 9814429Abstract: 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: GrantFiled: December 22, 2008Date of Patent: November 14, 2017Assignee: Cardiac Pacemakers, Inc.Inventors: Kent Lee, John D. Hatlestad, Qingsheng Zhu, Jeffrey E. Stahmann, Jesse W. Hartley, Quan Ni
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Patent number: 9808590Abstract: 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: GrantFiled: April 9, 2014Date of Patent: November 7, 2017Assignee: RESMED R&D GERMANY GMBHInventors: Stefan Rolf Madaus, Jorg Meier, Dieter Heidmann, Hartmut Schneider
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Patent number: 9808160Abstract: 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: GrantFiled: August 12, 2014Date of Patent: November 7, 2017Assignee: Intelomed, Inc.Inventors: Jan K. Berkow, Anne M. Brumfield
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Patent number: 9788782Abstract: 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: GrantFiled: July 18, 2016Date of Patent: October 17, 2017Assignee: Cardiac Pacemakers, Inc.Inventors: Pramodsingh Hirasingh Thakur, David J. Ternes, Stephen B. Ruble
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Patent number: 9719787Abstract: 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: GrantFiled: February 26, 2016Date of Patent: August 1, 2017Assignee: InvenSense, Inc.Inventors: Jacques Georgy, You Li, Medhat Omr, Christopher Goodall, Hsui-Wen Chang
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Patent number: 9693726Abstract: 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: GrantFiled: October 20, 2014Date of Patent: July 4, 2017Assignees: TS Tech Co., Ltd., Public University Corporation Nagoya City UniversityInventors: Shinji Sugiyama, Takayoshi Ito, Kiyoko Yokoyama, Issey Takahashi
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Patent number: 9668713Abstract: 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: GrantFiled: May 23, 2014Date of Patent: June 6, 2017Assignee: Cardiac Pacemakers, Inc.Inventors: Krzysztof Z. Siejko, Laura Green, Gerrard M. Carlson
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Patent number: 9636080Abstract: 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: GrantFiled: July 31, 2015Date of Patent: May 2, 2017Assignee: THE ASAN FOUNDATIONInventors: Sung-Hoon Kim, Segyeong Joo, Gyu-Sam Hwang
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Patent number: 9622709Abstract: 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: GrantFiled: October 11, 2013Date of Patent: April 18, 2017Assignee: The Cleveland Clinic FoundationInventors: Wolf H. Stapelfeldt, Marc R. Reynolds, Bhaswati Ghosh
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Patent number: 9618226Abstract: 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: GrantFiled: June 24, 2013Date of Patent: April 11, 2017Assignee: SHU-TE UniversityInventors: Chih-Yung Chen, Jun-Juh Yan
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Patent number: 9610026Abstract: 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: GrantFiled: August 21, 2014Date of Patent: April 4, 2017Assignee: Cardiac Pacemakers, Inc.Inventors: Viktoria A. Averina, Pramodsingh Hirasingh Thakur, Robert J. Sweeney, Jonathan Walter Krueger
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Patent number: 9591986Abstract: 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: GrantFiled: November 12, 2014Date of Patent: March 14, 2017Assignee: Cardiac Pacemakers, Inc.Inventors: Barun Maskara, Pramodsingh Hirasingh Thakur, Qi An
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Patent number: 9545227Abstract: 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: GrantFiled: March 31, 2014Date of Patent: January 17, 2017Assignee: VITAL CONNECT, INC.Inventors: Nandakumar Selvaraj, Ravi Narasimhan
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Patent number: 9526437Abstract: 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: GrantFiled: November 21, 2013Date of Patent: December 27, 2016Assignee: i4C Innovations Inc.Inventors: Joe Paul Tupin, Jr., John Michael Couse
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Patent number: 9522745Abstract: 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: GrantFiled: September 24, 2014Date of Patent: December 20, 2016Assignee: HONEYWELL INTERNATIONAL INC.Inventors: Pradeep Mahalingaiah, Kannan Kathirvel, Michael Christensen, Rupa Rudrappa
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Patent number: 9492084Abstract: 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: GrantFiled: August 10, 2006Date of Patent: November 15, 2016Assignee: adidas AGInventors: Andrew Behar, Jeff Cobb, Alex Derchak, Barry Keenan, Dave Darnall
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Patent number: 9486148Abstract: 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: GrantFiled: May 28, 2014Date of Patent: November 8, 2016Inventor: Shu-Shya Hseu
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Patent number: 9474452Abstract: 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: GrantFiled: May 21, 2012Date of Patent: October 25, 2016Assignee: Technische Universitaet MuenchenInventors: Eberhard F. Kochs, Gerhard Schneider, Denis Jordan, Adem Omerovic, Matthias Kreuzer
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Patent number: 9451886Abstract: 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: GrantFiled: July 12, 2011Date of Patent: September 27, 2016Inventor: Rodrigo E. Teixeira
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Patent number: 9445738Abstract: 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: GrantFiled: March 5, 2007Date of Patent: September 20, 2016Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Eric D. Helfenbein, A. Dean Forbes
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Patent number: 9408574Abstract: 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: GrantFiled: April 22, 2013Date of Patent: August 9, 2016Assignee: Medtronic, Inc.Inventors: Robert W. Stadler, Li Wang
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Patent number: 9402563Abstract: 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: GrantFiled: March 4, 2015Date of Patent: August 2, 2016Assignee: Cardiac Pacemakers, Inc.Inventors: Pramodsingh Hirasingh Thakur, David J. Ternes, Stephen B. Ruble
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Patent number: 9392997Abstract: 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: GrantFiled: May 25, 2011Date of Patent: July 19, 2016Assignee: Carbomed Medical Solutions GmbH & Co KGInventor: Gert Krammer
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Patent number: 9370335Abstract: A physiological acoustic monitoring system receives physiological data from an acoustic sensor, down-samples the data to generate raw audio of breathing sounds and compresses the raw audio. The acoustic monitoring system has an acoustic sensor signal responsive to tracheal sounds in a person. An A/D converter is responsive to the sensor signal so as to generate breathing sound data. A decimation filter and mixer down-samples the breathing sound data to raw audio data. A coder/compressor generates compressed audio data from the raw audio data. A decoder/decompressor decodes and decompresses the compressed audio data into decompressed audio data. The decompressed audio data is utilized to generate respiration-related parameters in real-time. The compressed audio data is stored and retrieved so as to generate respiration-related parameters in non-real-time. The real-time and non-real-time parameters are compared to verify matching results across multiple monitors.Type: GrantFiled: October 23, 2014Date of Patent: June 21, 2016Assignee: Masimo CorporationInventors: Ammar Al-Ali, Sung Uk Lee
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Patent number: 9368016Abstract: An apparatus for detecting sleep disorders, such as obstructive sleep apnea, includes a housing insertable into an ear canal of a subject. A sensor disposed within the housing measures a position of the subject's head relative to an axis of gravity. A transducer is responsive to the sensor and is capable of creating a stimulus detectable by the subject under certain conditions. In various embodiments, a controller receives signals corresponding to a pitch angle and a roll angle of the subject's head measured by the sensor, determines if the pitch and roll angles correspond to a sleep apnea inducing position, and causes the transducer to generate a stimulus upon determining that the subject's head is in the sleep apnea inducing position more than a predetermined threshold number of times. Various parameters of the stimulus may be modified with successive stimulus generation until a non-sleep apnea inducing position is detected.Type: GrantFiled: December 12, 2013Date of Patent: June 14, 2016Inventors: Christopher Thomas Lyons, Ellen M. Lyons, Stephen Thomas Lyons
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Patent number: 9339209Abstract: The invention provides a system for measuring respiratory rate (RR) from a patient. The system includes an impedance pneumography (IP) sensor, connected to at least two electrodes, and a processing system that receives and processes signals from the electrodes to measure an IP signal. A motion sensor (e.g. an accelerometer) measures at least one motion signal (e.g. an ACC waveform) describing movement of a portion of the patient's body to which it is attached. The processing system receives the IP and motion signals, and processes them to determine, respectfully, frequency-domain IP and motion spectra. Both spectra are then collectively processed to remove motion components from the IP spectrum and determine RR. For example, during the processing, an algorithm determines motion frequency components from the frequency-domain motion spectrum, and then using a digital filter removes these, or parameters calculated therefrom, from the IP spectrum.Type: GrantFiled: April 19, 2010Date of Patent: May 17, 2016Assignee: SOTERA WIRELESS, INC.Inventors: Matt Banet, Marshal Dhillon, Devin McCombie
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Patent number: 9336353Abstract: System and method for communicating glucose concentration information between devices of a continuous glucose monitoring system is provided. The continuous glucose monitoring system can include a sensor module generates a glucose concentration measurement data and transmits the data to one or more further devices of the continuous glucose monitoring system. The further devices can include a receiver unit and one or more secondary display devices. The receiver unit can be configured to be a stand-alone device of or physically connect to a secondary display device. A user interface can also be provided that provides enhanced functionality for using the continuous glucose monitoring system.Type: GrantFiled: June 23, 2011Date of Patent: May 10, 2016Assignee: DexCom, Inc.Inventors: Jorge Valdes, Shawn Larvenz, Michael Robert Mensinger, Hari Hampapuram, Kostyantyn Snisarenko, Phil Mayou, Eli Reihman, Randy Tompot
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Patent number: 9304271Abstract: A connecting element for connecting a fiber-optic light guide to a light source one time and detaching the fiber-optic light guide from a light source one time is provided. The connecting element includes a housing having a wall, where the housing encloses a cavity, a fiber-optic light guide that passes through the housing and the cavity, a connecting piece corresponding to a connecting section of the light source for establishing the connection to the light source, where the connecting section can be reused after the detachment, and prevention device configured to prevent repeated use of the connecting element and/or the light guide.Type: GrantFiled: August 29, 2014Date of Patent: April 5, 2016Assignee: SCHOTT AGInventors: Andreas Dietrich, Thomas Reichert
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Patent number: 9275484Abstract: Examples disclose selecting an error calculation corresponding to a measure of goodness of fit and identifying a fit type among multiple fit types based on the selected error calculation. The identified fit type indicates a better fit type of goodness of fit than the multiple fit types. The examples further disclose providing the goodness of fit based on the selected error calculation and the identified fit type.Type: GrantFiled: April 30, 2013Date of Patent: March 1, 2016Assignee: Hewlett-Packard Development Company, L.P.Inventors: Timothy James Wessman, Gregory Thorn Springer
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Patent number: 9226726Abstract: The present invention is a method and system for detection of high-frequency heart sounds for diagnosing heart diseases. One embodiment utilizes an accelerometer-based detector that presents a light load to the chest, is sensitive to the desired high frequency range, and provides a quantitative measurement of the quality of the acquired signal. Two thin piezoelectric flexible sensors, supported by a lightweight mechanical structure, are center-loaded so that they respond to the same mechanical energy and will produce identical electrical signals in the absence of noise. A signal processing system compares the signals from the two sensors to produce an estimate of the signal-to-noise ratio. The two signals can be combined to further improve the signal-to-noise ratio. The invention is designed to be light weight, to have a sensitive sensor mechanism, to provide an estimate of the signal-to-noise ratio of the detected signal, and to be relatively immune to noise.Type: GrantFiled: November 25, 2014Date of Patent: January 5, 2016Inventor: John L Semmlow
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Patent number: 9211097Abstract: A physiological monitor has notification unit for notifying an alarm; an alarm determination section that determines whether or not to generate an alarm by comparing measured physiological parameter pertinent to a patient with a predetermined threshold value, an alarm control section that lets the notification unit notify an alarm when the alarm determination section has determined to generate an alarm, and a foot switch that, when being trodden, outputs to the alarm control section an alarm inactivate signal for inactivating the alarm, wherein the alarm control section inactivates the alarm being generated from the notification unit in accordance with the alarm inactivate signal output from the foot switch and lets the notification unit notify by voice details of physiological parameter for which the alarm is being generated.Type: GrantFiled: January 24, 2014Date of Patent: December 15, 2015Assignee: NIHON KOHDEN CORPORATIONInventor: Rie Muneshima
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Patent number: 9204857Abstract: A method for continuous non-invasive hemodynamic state monitoring in a subject. The method includes acquiring continuous ultrasound data, estimating continuous arterial waveforms based upon the acquired ultrasound data, and deriving hemodynamic parameters for each cardiac cycle from the arterial waveforms. The method further includes defining a current hemodynamic state of the subject by setting limits on one or more hemodynamic parameters based upon the variation of these parameters over an initial period of time, and continuously monitoring a hemodynamic state of the subject. Further, a current state for one or more hemodynamic parameters of the subject are compared to previously determined limits for the one or more hemodynamic parameters, and either an alarm is triggered in an event that a change is detected in the current state of the one or more hemodynamic parameters or the arterial parameters are converted into a continuous estimate of the arterial blood pressure.Type: GrantFiled: June 5, 2009Date of Patent: December 8, 2015Assignee: General Electric CompanyInventor: Aaron Mark Dentinger
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Patent number: 9198617Abstract: A garment for ambulatory, physiological monitoring of a patient includes a belt, having first and second end portion with closures at the end portions to wrap around a user's chest, a strap having a first end coupled to a portion of the belt with the strap having a second end, a pair of shoulder strap portions each shoulder strap portion having a first end coupled together at the second end of the strap and a second end, and a back portion that joins the second ends of the pair of shoulder strap portions, with at least one of the belt, strap portions and back portion having an accommodation for carrying a sensor. Other embodiments are described.Type: GrantFiled: July 26, 2013Date of Patent: December 1, 2015Assignee: Medicomp, Inc.Inventors: Raymond C. Kurzweil, Paul Albrecht, Brandon Craft, Lucy Gibson, Mark Lutwyche, Vishal Dua, Aaron Kleiner, Michelle Daniels
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Patent number: 9186108Abstract: A physiological monitoring system may determine physiological information, such as physiological rate information, from a physiological signal. The system may determine a skew metric based on the physiological signal. The system may determine an algorithm setting based on a reference relationship between the determined skew metric and a value indicative of a physiological rate. The algorithm setting may, for example, affect the amount of filtering applied to the physiological signal.Type: GrantFiled: September 11, 2012Date of Patent: November 17, 2015Assignee: Covidien LPInventors: Fernando Rodriguez-Llorente, Pirow Engelbrecht, Nicholas James Wooder
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Patent number: 9186093Abstract: We have developed a reduced Drosophila heart preparation in which dissection of the fly heart removes nervous system input and reveals its inherent myogenic activity, which can be preserved for several hours. High speed image capture combined with computer-based analytical packages allows us to generate the equivalent of M-mode traces obtained from ultrasounds of human hearts.Type: GrantFiled: August 20, 2009Date of Patent: November 17, 2015Assignees: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, BURNHAM INSTITUTE FOR MEDICAL RESEARCHInventors: Rolf Bodmer, Karen Ocorr, Martin Fink
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Patent number: 9161703Abstract: An integrated bioinformatics sensing apparatus includes a piezoelectric sensing layer, an upper conductive layer, a bottom conductive layer and an information transmission controller. The piezoelectric sensing layer senses a physiological rhythm of a living organism to output a physiological rhythm signal, and the upper and bottom conductive layers sense a physiological electrical signal on a body surface of the living organism. The information transmission controller receives and processes the physiological rhythm signal and the physiological electrical signal to generate and store the sensed bioinformatics, or transmit the signals to the external processing device to display the sensed bioinformatics. The simple-structured sensing apparatus can be attached onto the body surface of the living organism conveniently.Type: GrantFiled: October 15, 2013Date of Patent: October 20, 2015Assignee: CHANG GUNG UNIVERSITYInventors: Min-Hsien Wu, Yi-Yuan Chiu, Hsin-Yao Wang, Song-Bin Huang
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Patent number: 9155478Abstract: A physiological monitoring system may determine physiological information, such as physiological rate information, from a physiological signal. The system may generate a difference signal based on the physiological signal and sort the difference signal to generate a sorted difference signal. The system may identify a midpoint of a first segment of the difference signal and a midpoint of a second segment of the difference signal. The first segment may correspond to positive values of the difference signal and the second segment may correspond to negative values of the difference signal. The system may determine an algorithm setting based on the first midpoint and the second midpoint. The algorithm setting may, for example, affect the amount of filtering applied to the physiological signal.Type: GrantFiled: September 11, 2012Date of Patent: October 13, 2015Assignee: Covidien LPInventors: Fernando Rodriguez-Llorente, Pirow Engelbrecht, Nicholas James Wooder
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Patent number: 9149597Abstract: An apparatus and method of controlling the delivery of therapeutic gas delivered to a patient undergoing positive airway pressure therapy is described. The method includes providing a flow of gas to a patient's airway at a pressure, obtaining information from the range of 0 to 25 Hz of the frequency domain of the flow, and adjusting the pressure based on the information. The apparatus includes a blower for providing a flow of gas to a patient's airway at a pressure, a sensor to measure a characteristic of the flow, a controller to obtain information from the range of 0 to 25 Hz of the frequency domain of the characteristic, and a pressure regulator for adjusting the pressure based on the information.Type: GrantFiled: January 3, 2011Date of Patent: October 6, 2015Assignee: FISHER & PAYKEL HEALTHCARE LIMITEDInventors: Lewis George Gradon, David Robin Whiting, Andrew Gordon Gerred, Gregory Martyn Smith, Fiona Elizabeth Anderson
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Patent number: 9131892Abstract: A garment and/or garment system with health-monitoring (e.g., cardiovascular monitoring) capability, substantially as shown in and/or described in connection with at least one of the figures, as set forth more completely in the claims.Type: GrantFiled: November 29, 2010Date of Patent: September 15, 2015Inventor: Gal Markel
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Patent number: 9119925Abstract: This disclosure describes improved systems and methods for efficiently configuring respiratory settings and/or parameters in a ventilatory system. Specifically, the present methods and user interface provide an efficient and consistent means for configuring ventilatory settings for a new patient. Specifically, the ventilator may be preconfigured with appropriate parameter settings based on an institution-specific protocol, a physician-specific protocol, or other suitable protocol or specification. Indeed, the present disclosure provides an institution and/or physician with increased control over routine ventilatory settings by pre-configuring the ventilator with these routine settings. Further, the present disclosure provides increased assurance as to the consistency of the routine ventilatory settings by eliminating repeated data entry by clinicians, decreasing the chances of error.Type: GrantFiled: April 15, 2010Date of Patent: September 1, 2015Assignee: Covidien LPInventors: Joseph D. Vandine, Peter R. Doyle, Warren G. Sanborn
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Patent number: 9114253Abstract: Devices and processes for performing magnetic resonance imaging of the anatomy of a patient during radiation therapy to measure and control the radiation dose delivered to the patient.Type: GrantFiled: March 1, 2013Date of Patent: August 25, 2015Assignee: University of Florida Research Foundation, Inc.Inventor: James F. Dempsey
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Patent number: 9113788Abstract: A method for monitoring the respiration rate of a patient includes attaching a plurality of electrocardiogram (ECG) electrodes and a pressure sensor to a patient, producing a first respiration signal based on variations detected in signals provided by the ECG electrodes attached to the patient, and producing a second respiration signal based on pressure variations detected in the pressure sensor secured to the patient. The method also includes selecting at least one of the first respiration signal and the second respiration signal based on respective signal qualities and producing a respiration rate from the selected signal. The method also includes providing indicia of the respiration rate. The method may also include displaying ECG signals with the indicia of the respiration rate.Type: GrantFiled: November 18, 2014Date of Patent: August 25, 2015Assignee: SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD.Inventors: Jack Balji, Cadathur Rajagopalan
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Patent number: 9092965Abstract: An apparatus for detecting sleep disorders, such as obstructive sleep apnea, includes a housing insertable into an ear canal of a subject. A sensor disposed within the housing measures a position of the subject's head relative to an axis of gravity. A transducer is responsive to the sensor and is capable of creating a stimulus detectable by the subject under certain conditions. In various embodiments, a controller receives signals corresponding to a pitch angle and a roll angle of the subject's head measured by the sensor, determines if the pitch and roll angles correspond to a sleep apnea inducing position, and causes the transducer to generate a stimulus upon determining that the subject's head is in the sleep apnea inducing position more than a predetermined threshold number of times. Various parameters of the stimulus may be modified with successive stimulus generation until a non-sleep apnea inducing position is detected.Type: GrantFiled: August 10, 2011Date of Patent: July 28, 2015Inventors: Christopher Thomas Lyons, Ellen M. Lyons, Stephen Thomas Lyons
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Patent number: 9079033Abstract: Changes in patient status are assessed based at least in part on respiration parameters. A user can make selections regarding alert criteria options to be used in assessing patient status. Respiration is implantably sensed and respiration data is stored by an implantable device. A respiration parameter, such as respiration rate, is measured from the respiration data. The change in patient status is assessed by comparing the respiration parameter to the configured alert criteria. If the comparison of the respiration parameter and the configured alert criteria indicates a significant change in patient status, an alert signal is generated.Type: GrantFiled: January 20, 2009Date of Patent: July 14, 2015Assignee: CARDIAC PACEMAKERS, INC.Inventors: Richard O. Kuenzler, Donald Hopper, Mary Jane Rasmussen, Aaron McCabe, John Layton
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Patent number: 9060722Abstract: A pulse oximeter system comprises a data processor configured to perform a method that combines a sigma point Kalman filter (SPKF) or sequential Monte Carlo (SMC) algorithm with Bayesian statistics and a mathematical model comprising a cardiovascular model and a plethysmography model to remove contaminating noise and artifacts from the pulse oximeter sensor output and measure blood oxygen saturation, heart rate, left-ventricular stroke volume, aortic pressure and systemic pressures.Type: GrantFiled: June 8, 2010Date of Patent: June 23, 2015Inventor: Rodrigo E. Teixeira
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Publication number: 20150148617Abstract: A patient monitoring system and method is disclosed herein. The system includes one or more patient monitors that obtain physiological data from a patient. Based upon the physiological data obtained from the patient, as well as the information available for the patient in an electronic health record, an algorithm selection device determines which one of a plurality of early warning algorithms are best suited for use in monitoring a patient. One or more early warning algorithms can be presented to a user for selection. Once the algorithm selection device or the user determines which of a plurality of early warning algorithms would be most effective, the early warning algorithm is downloaded to the patient monitor for use by the patient monitor. The patient monitor utilizes the downloaded early warning algorithm to generate alarms and alerts to indicate the health status of the patient being monitored.Type: ApplicationFiled: November 27, 2013Publication date: May 28, 2015Applicant: GENERAL ELECTRIC COMPANYInventor: Bruce Arnold Friedman
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Publication number: 20150141852Abstract: A detection device, for placement under or on a mattress, configured for the movements of a person lying on the mattress, includes a sensing portion having an inflatable chamber intended to be positioned under the individual, an electronic unit arranged at a distance from the sensing portion and having a pressure sensor, intended to be positioned outside of the bedding, a transmitting portion interposed between the sensing portion and the electronic unit, including a channel establishing a fluid connection between the inflatable chamber and the sensor, the channel having a transverse dimension (T) that is much smaller than the width (L1) of the chamber.Type: ApplicationFiled: November 18, 2014Publication date: May 21, 2015Applicant: WITHINGSInventors: Florent Dusanter, Bastien Rechke, Pierre Barrochin, Nadine Buard, Eric Carreel, Lodie Julien