Respiratory Patents (Class 600/529)
  • Patent number: 9763601
    Abstract: Values of components of total carbon dioxide excreted by a subject can be provided. One or more signals may be received conveying information related to a rate of total carbon dioxide excreted by the subject. Based at least in part on the received one or more signals, a first capnometric component and/or a second capnometric component may be determined. The first capnometric component may indicate a rate of metabolic carbon dioxide production. The second capnometric component may indicate a rate of carbon dioxide transfer to or from body compartments of the subject that store carbon dioxide. The first capnometric component and/or the second capnometric component may be presented to a user.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: September 19, 2017
    Assignee: Koninklijke Philips N.V.
    Inventors: Joseph Allen Orr, Lara Brewer
  • Patent number: 9764139
    Abstract: A medical device system and associated method determine an implantable medical device state prior to implantation. An impedance monitoring module monitors for a change in impedance between a pair of electrodes coupled to the impedance monitoring circuit. The system includes an enclosure for carrying the implantable medical device. The enclosure has a surface having an electrical impedance. A control module is configured to detect one of a first pre-implant state and a second pre-implant state of the implantable medical device in response to the impedance monitoring module detecting a change in impedance between the electrodes and adjust operation of the implantable medical device in response to detecting the impedance change.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: September 19, 2017
    Assignee: Medtronic, Inc.
    Inventor: Eric M. Christensen
  • Patent number: 9750909
    Abstract: Described is a system including a sensor and a processing arrangement. The sensor measures data corresponding to a patient's breathing patterns. The processing arrangement analyzes the breathing patterns to determine whether the breathing patterns are indicative of a REM sleep state. In another embodiment, the processing arrangement analyzes the breathing patterns to determine whether the breathing patterns are indicative of one of the following states: (i) a wake state and (ii) a sleep state. In another embodiment, a neural network analyzes the data to determine whether the breathing patterns are indicative of one of the following states: (i) a REM sleep state, (ii) a wake state and (iii) a sleep state. In another embodiment, the processing arrangement analyzes the data to determine whether the breathing pattern is indicative of an arousal.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: September 5, 2017
    Assignee: NEW YORK UNIVERSITY
    Inventors: David M. Rapoport, Robert G. Norman
  • Patent number: 9737262
    Abstract: A wearable monitoring device includes a plurality of cardiac sensing electrodes, a monitor, at least one motion sensor, and a controller. The plurality of cardiac sensing electrodes are positioned outside a body of a subject and to detect cardiac information of the subject. The monitor administers a predetermined test to the subject, and has a user interface configured to receive quality of life information from the subject. The at least one motion sensor is positioned outside the body of the subject and to detect subject motion during the predetermined test. The controller is communicatively coupled to the plurality of cardiac sensing electrodes, the monitor, and the at least one motion sensor, and receives and stores the detected cardiac information, the quality of life information, and the detected subject motion. The controller further communicates the stored detected subject motion and the quality of life information to a remote computer.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: August 22, 2017
    Assignee: ZOLL MEDICAL CORPORATION
    Inventors: Edward J. Donnelly, Thomas E. Kaib, Marshal W. Linder, Steven J. Szymkiewicz, Jason T. Whiting, Shane S. Volpe
  • Patent number: 9659229
    Abstract: An image of a human, animal or machine subject, is analysed to detect regions which include strong periodic intensity variations, such as a photoplethysmogram (PPG) signal in a human or animal, or some periodic vibration in a machine. The image is divided into plural regions of fixed order is fitted to a representative intensity signal for that region. The poles of the fitted autoregressive model are thresholded by magnitude to select only the pole or poles with a magnitude greater than the threshold. The pole magnitude therefore acts as a signal quality index. The dominant pole is representative of the strongest periodic information and the frequency of that spectral component can be derived from the phase angle of the pole. The image may be redisplayed with image attributes, e.g. color-coding, according to the pole magnitude in each region of interest and/or the dominant pole phase angle in each region of interest. In the case of a PPG image signal this can give maps of heart rate and breathing rate.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: May 23, 2017
    Assignee: ISIS INNOVATION LIMITED
    Inventors: David Andrew Clifton, Mauricio Christian Villarroel Montoya, Lionel Tarassenko
  • Patent number: 9649087
    Abstract: Disclosed herein is a method and device for apnea and hypopnea detection. In one embodiment, a method is provided for detecting apneas and hypopneas from a digitized breath sound recording acquired from a candidate suspected of sleep apnea. The method comprises scanning an amplitude profile of the digitized breath sound recording to identify a prospect event segment; evaluating characteristics of the prospect event segment for consistency with one or more preset apnea-specific criteria; classifying the prospect event segment as representative of an apnea upon it satisfying each of the one or more apnea-specific criteria; evaluating the prospect event characteristics for consistency with one or more preset hypopnea-specific criteria distinct from the apnea-specific criteria; and classifying the prospect event segment as representative of a hypopnea upon it satisfying each of the one or more hypopnea-specific criteria.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: May 16, 2017
    Assignee: UNIVERSITY HEALTH NETWORK
    Inventors: Hisham Alshaer, Geoffrey Roy Fernie, T. Douglas Bradley
  • Patent number: 9648091
    Abstract: A computer-implemented method and apparatus for modifying an entity sensory representation. An entity sensory representation representing an entity is received. The entity sensory representation comprises a plurality of sensory representations that represent a plurality of items that are part of the entity. Each of the plurality of items is associated with a set of values for a set of measurable factors of interest. A set of scale factors is calculated for each of the plurality of sensory representations based on the set of values associated with the each of the plurality of items. The plurality of sensory representations is modified using the set of scale factors to form a plurality of modified sensory representations that establish a relative relationship between the plurality of items represented by the plurality of modified sensory representations with respect to the set of measurable factors of interest.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: May 9, 2017
    Assignee: THE BOEING COMPANY
    Inventors: Emily Louise Howard, Brian Dale Laughlin, Wayne Richard Howe
  • Patent number: 9647990
    Abstract: Proposed invention refers to a method for anonymously associating health monitoring device measurements to a user ID. The invention comprises the steps of: registering in a server a user associated with an ID and a first set of metadata; registering a health monitoring device associated to a second ID and a second set of metadata; then, sending through a first communication channel the ID associated to the user and the first set of metadata to the server by a communication device; taking a measurement of the user by the health monitoring device and sending through a second communication channel said measurement associated to the second ID and the second set of metadata to the server; comparing the metadata stored in the server; and finally associating the first ID with the measurements taken by the health monitoring device corresponding to the second set of metadata, being based the association on the results of the previous comparison.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: May 9, 2017
    Assignee: VODAFONE IP LICENSING LIMITED
    Inventors: Patricia Alonso Diaz, Daniel Almodóvar Herráiz, Guillermo Esteve Asensio
  • Patent number: 9642557
    Abstract: A method is provided for analyzing respiration of a subject (20). Using a non-contact microphone (22), a raw signal indicative of air-flow sounds of the respiration is generated. The raw signal is analyzed to determine a first set of one or more parameters of the respiration. An algorithm is applied to the first set of one or more parameters of the respiration. An algorithm is applied to the first set of parameters to derive a second set of one or more estimated parameters of the respiration that are not generally directly measurable in the raw signal. Other embodiments are also described.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: May 9, 2017
    Assignee: 2BREATHE TECHNOLOGIES LTD.
    Inventors: Benjamin Gavish, Yoram Doron
  • Patent number: 9629559
    Abstract: A method and system for determining homeostatic risk in a patient, in order to screen metabolic diseases and/or their complications and/or their treatment management, is provided. The method includes receiving, from one or more sensors coupled with the patient, galvanic skin response, bioimpedance, a photoplethysmogram (PTG), and blood pressure from the patient, calculating a first score based on the PTG, calculating a second score based on the galvanic skin response, calculating a third score based on the bioimpedance, calculating a fourth score based on the blood pressure, calculating a homeostatic risk score based on the first, second, third and fourth scores that were calculated, wherein the homeostatic risk score corresponds to the homeostatic risk of the patient, and displaying the homeostatic risk score.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: April 25, 2017
    Assignee: MEDICAL SCREENING CORPORATION
    Inventor: Albert Maarek
  • Patent number: 9629582
    Abstract: An apnea episode determination device includes, a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute, detecting a breathing segment and a midway segment from a sound signal during sleep, the breathing segment being considered to include a breathing sound, the midway segment existing in between the breathing segments; calculating an acoustic feature based on a background noise component and a signal component excluding the background noise component, which are included in the midway segment; and determining that the midway segment is an apnea episode when the acoustic feature meets a preset condition.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: April 25, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Chisato Ishikawa, Taro Togawa, Takeshi Otani, Masanao Suzuki, Asako Nishida
  • Patent number: 9597011
    Abstract: Disclosed is a respiratory phase determination apparatus enabling a respiratory phase determination robust to personal differences in respiration among subjects and fluctuations in respiration of subjects in person without any need for calibration.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: March 21, 2017
    Assignee: PANASONIC CORPORATION
    Inventors: Mitsuru Endo, Noriaki Horii, Maki Yamada
  • Patent number: 9594874
    Abstract: Embodiments of the present invention provide methods of extracting optimal information from a flow/volume loop concerning the patient's respiratory condition by examining the overall shape of the space under the flow/volume loop's expiration portion. In some embodiments, this is done with reference to the center of mass of that space. In some embodiments, this is done with reference to the area of that space. Some embodiments are significantly less affected by random/statistical variations and/or noise within the measurement system than existing methods.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: March 14, 2017
    Assignee: VoluSense AS
    Inventors: Morten Eriksen, Øivind Enger
  • Patent number: 9585601
    Abstract: Systems, methods and devices for diagnosing sleep apnea are provided herein. In one example, a device for detecting airway obstructions may be provided where the device may include a wearable hollow nasal tube to be positioned in an upper airway above a constriction point and an end imaging sensor coupled to the nasal tube to collect airway image data. The device further may include a controller and communication interface to communicatively link and relay airway image data to a select remote device to determine airway obstructions. In some examples, a method may be provided including receiving airway image data from a remote end imaging sensor coupled to a nasal tube disposed within an upper airway above a constriction point, and analyzing the airway image data and displaying in a sleep study report the airway image data to identify airway closures related to obstructive sleep apnea.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: March 7, 2017
    Inventor: Chunyuan Qiu
  • Patent number: 9572948
    Abstract: A liquid separator removing a liquid from a sample of a breathing gas flowing through an airway adapter having a channel surrounded by a wall is disclosed herein. The separator includes a chamber receiving the sample, and a membrane having an outer surface exposed to the gas flow, the membrane at least partially surrounding the chamber, which membrane separates the liquid received by the chamber. The separator also includes a supporting structure for supporting the membrane, and a connector operationally attached to the supporting structure, the connector being connectable to the adapter. The connector comprises a cavity providing a flow path for the sample from the chamber through an opening of the cavity to a sample tube. The membrane branches from a central part of the channel into at least two different branches extending to different directions.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: February 21, 2017
    Assignee: General Electric Company
    Inventors: Heikki Haveri, Kurt Weckstrom, Kai Karlsson, Jani Kauppi, Anne Paykkonen, Timo Holopainen, Mikael Alanen
  • Patent number: 9572507
    Abstract: A multi sensor module especially designed for use in sleep-study applications includes a PVDF film piezoelectric transducer enclosed between an upper layer of a single-sided adhesive tape strip and a lower layer of a double-sided adhesive tape strip. Also adhesively affixed to the upper single-sided adhesive tape strip, but not overlaid by the lower double-sided adhesive tape strip are first and second conductive electrodes. The combination sensor module is adapted to be adhesively affixed to the chest area of a person and further included in an extension of the PVDF strip that is adapted to overlay the suprasternal notch of a person for producing signals responsive to respiratory activity of the person.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: February 21, 2017
    Assignee: DYMEDIX CORPORATION
    Inventors: James P. Moore, Todd M. Eiken
  • Patent number: 9554740
    Abstract: An apparatus (10) for predicting patient respiratory stability includes a patient data memory (24) which stores patient data for a patient (12) and an analyzer (34) in communication with the memory computes a measure of patient respiratory stability. The analyzer applies one or more rules to the patient data that are based on a plurality of parameters which in combination, have been identified as being predictive of patient respiratory instability, such as mean airway pressure (MAWP), plateau pressure (PP), arterial oxygen saturation (SaO2 or SpO2), and heart rate (HR). Based on the application of the rules, the analyzer determines the measure of patient respiratory stability.
    Type: Grant
    Filed: February 2, 2009
    Date of Patent: January 31, 2017
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Mohammed Saeed, Kwok Pun Lee, Colleen M. Ennett, Larry Eshelman, Larry Nielsen, Brian Gross
  • Patent number: 9526458
    Abstract: A computer-implemented method comprises: (A) receiving first acoustic data representing a first cough train of a first human subject, wherein the first cough train comprises at least one first cough of the first human subject; (B) identifying at least one first value of at one first acoustic property of the first acoustic data; and (C) determining, based on the at least one first value of the at least one first acoustic property, whether the first acoustic data indicates that the first human subject has a severe respiratory illness.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: December 27, 2016
    Assignee: Speech Technology and Applied Research Corporation
    Inventor: Joel MacAuslan
  • Patent number: 9500473
    Abstract: An instrument system that includes an optical fiber and a controller is provided. The optical fiber is coupled to an external structure of a patient and has a strain sensor provided thereon. The controller is operatively coupled to the optical fiber and adapted to receive a signal from the strain sensor and to determine a property of respiration of the patient based on the signal.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: November 22, 2016
    Assignee: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Bhaskar S. Ramamurthy, Neal A. Tanner, Robert G. Younge, Randall L. Schlesinger
  • Patent number: 9486147
    Abstract: Shown and described is a method for controlling and/or regulating a spiroergometry system (1) for determining energy metabolism during physical exertion, wherein the spiroergometry system (1) has a user unit (2) arranged in the flow of the inhaled and exhaled air of a test subject (4) for removing a respiratory gas sample of the test subject (4), at least one analysis unit (5) for measuring the respiratory gas composition and/or the respiratory flow volume and for determining physiological parameters relating to the ventilation and/or gas exchange of the test subject (4), particularly for determining the oxygen volume taken in during at least one inhalation of the test subject (4) and the carbon dioxide volume exhaled after the breath and, preferably, the respiratory quotient, at least one measuring device (6) for measuring the heart rate of the test subject (4), at least one control device (7) for controlling the spiroergometry system (1) and a cardio equipment unit (8) for the physical exertion of the test
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: November 8, 2016
    Assignee: ACEOS GMBH
    Inventors: Gunnar Jung, Dirk Tuchtenhagen, Markus Schotters, Martin Kusch
  • Patent number: 9468718
    Abstract: A pump system and method of detecting/alerting for a possible unintended free flow condition in an administration set includes the steps of a) sampling force signals from a force sensor of the pump at a predetermined frequency; b) storing each of the sampled forces signal in a N-point circular buffer, where N is an integer greater than two; c) calculating a derivative dF/dt based on the two most recent samples; d) repeating step c) and when the most recently calculated derivative dF/dt exceeds a first predetermined threshold, then calculating a N-point moving average of the derivatives dF/dt; and f) when the N-point moving average exceeds a second predetermined threshold, generating a user perceptible alarm to alert the user that a flow stop open condition may have occurred.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: October 18, 2016
    Assignee: Hospira, Inc.
    Inventors: David Tseng Ho Hung, David Pih, Purushottam Amarnath Patil, John Michael Wyatt, Vincent James DeFrank
  • Patent number: 9453253
    Abstract: The present invention is directed to methods of diagnosing the presence or absence of a bacterial infection in a patient, in particular, a tuberculosis infection, by measuring exhaled, isotopically labeled nitrogen gas after administration of isotopically labeled isoniazid.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: September 27, 2016
    Assignees: STC.UNM, THE JOHNS HOPKINS UNIVERSITY
    Inventors: Graham Timmins, Seong Choi, Zachary Sharp, Viorel Atudorei, Mamoudou Maiga, William Bishai
  • Patent number: 9439567
    Abstract: The present invention is directed to providing customized versions of firmware to a wearable sensor device. The customized versions of the firmware can allow one or more sensors in the wearable sensor device to perform in a manner that is most optimal for a particular user or the particular manner in which the wearable sensor device is used. In some cases, the customizations can include causing the sensors to use a sampling rate that is optimal for one or more activities that the particular user intends to perform while wearing the wearable sensor device.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: September 13, 2016
    Inventors: Abraham Carter, David Scott
  • Patent number: 9415222
    Abstract: Systems and methods for monitoring an epilepsy disease state in a human patient are described. The system includes patient components and a supervisory module. The patient components include: an implantable electrode array for collecting neurological signals, an implantable recording electrode signal processor for processing the neurological signals collected by the electrode array, and a disease state estimator for estimating the patient's disease state. The supervisory module receives the patient's disease state from the patient components and displays a time history of the patient's disease state.
    Type: Grant
    Filed: July 21, 2008
    Date of Patent: August 16, 2016
    Assignee: CYBERONICS, INC.
    Inventor: Daniel John DiLorenzo
  • Patent number: 9409013
    Abstract: A method for delivering energy as a function of degree coupling may utilize an external unit configured for location external to a body of a subject and at least one processor associated with the implant unit and configured for electrical communication with a power source. The method may determine a degree of coupling between the primary antenna and a secondary antenna associated with the implant unit, and regulate delivery of power to the implant unit based on the degree of coupling between the primary antenna and the secondary antenna.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: August 9, 2016
    Assignee: NYXOAH SA
    Inventors: Adi Mashiach, Oliver Scholz
  • Patent number: 9357953
    Abstract: Various embodiments may provide methods and systems capable of evaluating physiological parameter data. The methods and systems may include monitoring a patient to produce a signal comprising a sequence of numerical values for blood oxygen saturation over a time period. The signal may be analyzed to identify two or more desaturation patterns within the time period, and at least two numerical differences are calculated between the desaturation patterns. A saturation pattern detection index may be calculated using the numerical differences between the desaturation patterns. The saturation pattern detection index may be used to provide an indication of a physiological condition. Other embodiments may provide a medical device that may be used to evaluate physical parameter data according to the techniques described.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: June 7, 2016
    Assignee: COVIDIEN LP
    Inventors: James Ochs, Scott Amundson, Keith Batchelder, Paul Mannheimer
  • Patent number: 9345432
    Abstract: A method and an apparatus are disclosed for extending the service life of a battery source by fully utilizing the energy in batteries and/or providing higher energy reserve using multiple batteries. An universal battery bank consists of an ensemble of possibly heterogenous batteries all connected in series to provide a usable operational energy source. For a universal battery bank consists on N batteries, the minimum operational voltage for the individual batteries (Vmin) can be lowered to Vmin/N on average, thereby extending the time interval between battery replacements and draining the individual batteries more efficiently. To exploit this power supply that may vary over a wide voltage range, electronics are designed to monitor the individual batteries, guard against excessive voltage and current, and provide constant current sources and/or constant voltage sources for various appliances.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: May 24, 2016
    Assignee: Rhode Island Board of Education, State of Rhode Island and Providence Plantations
    Inventors: John Salisbury, Ying Sun
  • Patent number: 9307950
    Abstract: A sleep apnea syndrome testing apparatus includes: an analyzing unit that analyzes every unit time a sound signal resulting from a subject during sleep; a determining unit that determines whether a unit time of the sound signal includes a breath sound or a characteristic sound produced when a patient with sleep apnea syndrome recovers from an apneic state into a breathing state, and the determining unit that determines that the sleep state of the subject in the unit time is any one of “breathing restored state,” “state with breathing,” and “state without breathing;” a storage unit in which a sleep state of the subject in each unit time is stored; and a detecting unit that detects an apneic state of the subject if a history of the sleep states of the subject indicates at least a transition from the “state without breathing” to the “breathing restored state.
    Type: Grant
    Filed: January 23, 2012
    Date of Patent: April 12, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Masakiyo Tanaka, Masanao Suzuki, Yasuji Ota
  • Patent number: 9295803
    Abstract: A method and apparatus determine a phase angle between a first signal based on ventilator airflow for a breath and a second signal based upon ventilator firing for the breath. Based on the phase angle, an indication of a nature of dis-synchrony of airflow and ventilator firing is provided.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: March 29, 2016
    Assignee: GENERAL ELECTRIC COMPANY
    Inventor: Jerome B. Korten
  • Patent number: 9283333
    Abstract: The invention relates to a medical hand-held device, in particular an atomizer (1), for dispensing a liquid pharmaceutical preparation from a container with a discharge nozzle for the pharmaceutical preparation and located upstream from the discharge nozzle there is a multiple-stage filter system.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: March 15, 2016
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Steffen Schuy, Martin Meisenheimer, Florian Witte
  • Patent number: 9279794
    Abstract: Described are systems and methods for compensating long term sensitivity drift of catalytic type electrochemical gas sensors used in systems for delivering therapeutic nitric oxide (NO) gas to a patient by compensating for drift that may be specific to the sensors atypical use in systems for delivering therapeutic nitric oxide gas to a patient. In at least some instances, the long term sensitivity drift of catalytic type electrochemical gas sensors can be addressed using calibration schedules, which can factor in the absolute change in set dose of NO being delivered to the patient that can drive one or more baseline calibrations. The calibration schedules can be used reduce the amount of times the sensor goes offline. Systems and methods described may factor in in actions occurring at the delivery system and/or aspects of the surrounding environment, prior to performing a baseline calibration, and may postpone the calibration and/or rejected using the sensor's output for the calibration.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: March 8, 2016
    Assignee: Mallinckrodt Hospital Products IP Limited
    Inventors: Craig R. Tolmie, Jeff Milsap, Jaron M. Acker
  • Patent number: 9280912
    Abstract: A training apparatus for training a child how to blow his or her nose includes a tapered chute having proximal and distal ends. The tapered chute defines an internal passageway connecting the proximal and distal ends. The proximal end includes a proximal opening that is sufficiently wide to fit over a child's nose. The distal end includes a distal opening that is smaller than the proximal opening. The internal passageway includes a narrow portion, adjoining the distal opening, and sized to snugly accommodate a projectile lodged therein. When air is exhaled into the proximal opening, the exhaled air passes through the internal passageway and builds pressure behind the projectile such that the projectile is forcefully ejectable from the distal opening.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: March 8, 2016
    Inventors: Michael Glass, Jonathan Thorn, Tsin-Cheng Chang
  • Patent number: 9272111
    Abstract: The disclosed concept maintains that Qp=Qc?Qleak, where, Qp is the estimated patient flow, Qleak is the estimated leak and Qc is the measured total circuit flow. Qleak is given by a transfer function ?(?) where x is a set of independent measured or fixed variables. The transfer function is thus Qleak=?(?). The transfer function (?(?) is adjusted given the constraint that, Qp shall be zero. The transfer function converges over time to accurately estimate the leak because over an extended time the mean patient flow will always be zero. In one example, ?(?)=gorfP? and the coefficient gorf is adapted until Qp is zero.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: March 1, 2016
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: William A. Truschel, Anandi Mahadevan
  • Patent number: 9265961
    Abstract: A support device for supporting a transmission coil on the body of a patient, with a receiving or securing device or a receiving space for receiving or securing the transmission coil in and/or on the support device, and further comprising a detection device for detecting a process of application, a state of application, a process of removal and/or a state of removal of the support device relative to the body of the patient. Further pertaining to a method for operating such a device.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: February 23, 2016
    Assignee: DUALIS MEDTECH GMBH
    Inventors: Thomas Schmid, Stefan Auracher, Stefan Schwarzbach
  • Patent number: 9239347
    Abstract: A non-resistive contact sensor assembly includes an electric field sensor device, including a dry electrode component for receiving an electrical signal from an object of interest and a signal processing component for processing the electrical signal, and a casing in which the signal processing component is surrounded or embedded. The processing component may include communications capabilities.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 19, 2016
    Assignee: RESCON LTD
    Inventor: Thomas Andrew Dawson
  • Patent number: 9232917
    Abstract: A system evaluates a patient for a physiological abnormality. A urinary catheter is insertable within a patient's bladder and has a first pressure sensor for measuring bladder pressure and a second pressure sensor for measuring mid-urethral pressure at the mid-urethral sphincter. A processing device is connected to the first and second pressure sensors and configured to receive the measured bladder pressure and measured mid-urethral pressure during at least one breath cycle and process the data representative of the bladder and mid-urethral pressures obtained during the at least one breath cycle to diagnose a physiological abnormality within the patient.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: January 12, 2016
    Assignee: Pneumoflex Systems, LLC
    Inventors: W. Robert Addington, Stuart P. Miller
  • Patent number: 9232928
    Abstract: A method and system for physiological gating is disclosed. A method and system for detecting and predictably estimating regular cycles of physiological activity or movements is disclosed. Another disclosed aspect of the invention is directed to predictive actuation of gating system components. Yet another disclosed aspect of the invention is directed to physiological gating of radiation treatment based upon the phase of the physiological activity. Gating can be performed, either prospectively or retrospectively, to any type of procedure, including radiation therapy or imaging, or other types of medical devices and procedures such as PET, MRI, SPECT, and CT scans.
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: January 12, 2016
    Assignee: VARIAN MEDICAL SYSTEMS, INC.
    Inventor: Hassan Mostafavi
  • Patent number: 9211085
    Abstract: A respiration sensing subsystem includes a band made of stretchable material and a pair of spaced conductors extending along the band in a flexible pattern. A moisture repellant compound is added to the stretchable material of the band between the pair of spaced conductors.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: December 15, 2015
    Assignee: Foster-Miller, Inc.
    Inventor: Richard B. Streeter
  • Patent number: 9198405
    Abstract: A boat holding tank for anesthetizing fish is described having a pulsator, with the pulsator having an anode output and a cathode output; a holding tank capable of receiving an aquatic animal, the holding tank further comprising an anode probe and a cathode probe, with the anode cathode probe of the holding tank switchably connected to the anode and cathode output of the pulsator, such that when the pulsator is activated the aquatic animal in the holding tank is anesthetized.
    Type: Grant
    Filed: January 1, 2012
    Date of Patent: December 1, 2015
    Assignee: Smith-Root, Inc.
    Inventor: Kerry Douglas Smith
  • Patent number: 9199076
    Abstract: Method and apparatus for performing multiple measurements and diagnoses simultaneously, in terms of body function, include a data processing element, a data acquisition module, an optional treatment output module, a user control module, and a user display system, where the data acquisition module sends a plurality of measurement data simultaneously, in terms of body functions, to the data processing element. The processing element provides a plurality of outputs which can be made available to the user or combined in the diagnostic module. A treatment algorithm in the treatment module can affect the patient through a feedback mechanism. In response, the data processing element generates treatment information needed by the treatment output module.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: December 1, 2015
    Assignee: Innovations Holdings, L.L.C.
    Inventor: Ewa Herbst
  • Patent number: 9186101
    Abstract: A physiological monitoring system may determine physiological information, such as physiological rate information, from a physiological signal. The system may generate a correlation sequence using two segments of the physiological signal. The system may determine a first correlation lag value that corresponds to a peak in the correlation sequence, and also determine a second correlation lag value equal to a fraction of the first correlation lag value. The fraction may be, for example, one half. The system may qualify or disqualify the correlation lag value based on the correlation value at the second lag value. The system may compare the correlation value at the second lag value to a threshold, to the correlation sequence at the first lag value, or both.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: November 17, 2015
    Assignee: Covidien LP
    Inventors: Fernando Rodriguez-Llorente, Pirow Engelbrecht, Nicholas James Wooder
  • Patent number: 9186076
    Abstract: 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 also determine a correlation lag value corresponding to a peak in a correlation sequence derived from the physiological signal. The system may qualify or disqualify the correlation lag value based on the skew metric. The system may, for example, compare the skew metric and the correlation lag value to a reference set of skew metric values and correlation lag values to determine whether to qualify or disqualify the correlation lag value.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: November 17, 2015
    Assignee: Covidien LP
    Inventors: Fernando Rodriguez-Llorente, Pirow Engelbrecht, Nicholas James Wooder
  • Patent number: 9173615
    Abstract: Methods and apparatus combine patient measurement data with demographic or physiological data of the patient to determine an output that can be used to diagnose and treat the patient. A customized output can be determined based the demographics of the patient, physiological data of the patient, and data of a population of patients. In another aspect, patient measurement data is used to predict an impending cardiac event, such as acute decompensated heart failure. At least one personalized value is determined for the patient, and a patient event prediction output is generated based at least in part on the personalized value and the measurement data. For example, bioimpedance data may be used to establish a baseline impedance specific to the patient, and the patient event prediction output generated based in part on the relationship of ongoing impedance measurements to the baseline impedance. Multivariate prediction models may enhance prediction accuracy.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: November 3, 2015
    Assignee: MEDTRONIC MONITORING, INC.
    Inventors: Rodolphe Katra, Niranjan Chakravarthy, Imad Libbus
  • Patent number: 9148483
    Abstract: Methods, devices, and computer programs are presented for creating a unified data stream from multiple data streams acquired from multiple devices. One method includes an operation for receiving activity data streams from the devices, each activity data stream being associated with physical activity data of a user. Further, the method includes an operation for assembling the unified activity data stream for a period of time. The unified activity data stream includes data segments from the data streams of at least two devices, and the data segments are organized time-wise over the period of time.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: September 29, 2015
    Assignee: Fitbit, Inc.
    Inventors: Peter Andrew Molettiere, Shelten Gee Jao Yuen, Jung Ook Hong, Andrew Cole Axley, James Park
  • Patent number: 9138169
    Abstract: An oxygen face mask to cover a user's nose and at least partially cover a user's mouth with lateral sampling ports; systems including such a face mask; and methods of using such a face mask.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: September 22, 2015
    Assignee: Monitor Mask Inc.
    Inventor: John W. Beard
  • Patent number: 9125718
    Abstract: The present invention provides for an access port configured to detect its tilt within the body to facilitate a physician's access thereto. The access port can include a tilt detector to detect tilt datum, and a display screen to display the tilt of the access port. In addition, the tilt detector and the display screen can indicate whether the access port is flipped or not. The tilt detector can include an accelerometer to aid in determining the tilt of the access port.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: September 8, 2015
    Assignee: APOLLO ENDOSURGERY, INC.
    Inventor: Mike Augarten
  • Patent number: 9113780
    Abstract: A device for detecting occurrence of wheeze in a lung sound includes an acoustic processing unit, a filtering unit, and an identifying unit. The acoustic processing unit is for obtaining a lung sound and for generating a raw sound signal accordingly. The filtering unit is for filtering the raw sound signal to obtain a filtered signal. The filtered signal has a plurality of sections with respect to the time domain. The identifying unit is for computing an energy value of each of the sections of the filtered signal, and for determining that a wheeze occurs when the energy values of a part of the sections are larger than a predetermined value and duration of the part of the sections is longer than a predetermined observation time.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: August 25, 2015
    Assignee: I SHOU UNIVERSITY
    Inventor: Gwo-Ching Chang
  • Patent number: 9117015
    Abstract: A collection device for performing a structured collection procedure may include a processor that executes program instructions communicably coupled to at least one memory. The processor can initiate a schedule of events of the structured collection procedure upon one or more entry criterions being met and segregate the at least one memory into a primary data store and a secondary data store. The processor can write structured patient data collected in accordance to the schedule of events to the secondary data store. The processor can transform a relevant portion of the structured patient data into an evaluated data object. The processor can generate a data abstraction based in part upon the evaluated data object. The processor can link the primary data store and the secondary data store with the data abstraction.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: August 25, 2015
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Steven A. Bousamra, Abhishek S. Soni
  • Patent number: 9109971
    Abstract: A respiratory condition analysis apparatus includes a respiratory signal acquisition section configured to acquire a time-series respiratory signal including respiratory sound of a living body, a respiratory segment identification section configured to identify a respiratory segment that is a time segment including the respiratory sound in the respiratory signal, a feature value generation section configured to generate a predetermined feature value of the respiratory signal for the identified respiratory segment, and a respiratory abnormality degree generation section configured to generate a degree of abnormality of the respiratory sound included in the respiratory signal on the basis of the feature value.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: August 18, 2015
    Assignee: SONY CORPORATION
    Inventors: Mototsugu Abe, Chika Myoga, Masayuki Nishiguchi
  • Patent number: 9074917
    Abstract: Apparatus and methods for measurement of airflow in a duct are described. The apparatus combines a Pitot tube, sensing apparatus, control apparatus, a display, control switches and carry apparatus arranged into a unitary structure.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: July 7, 2015
    Inventor: Russell P Secor