Sensing Body Condition Or Signal Other Than Electrocardiographic Signal Patents (Class 607/6)
  • Patent number: 10791949
    Abstract: A computation apparatus, a cardiac arrhythmia assessment method thereof and a non-transitory computer-readable recording medium are provided. In the method, electrocardiography (ECG) signal is obtained. Whether the ECG signal is conformed to a first abnormal rhythm symptom is determined. Then, whether the ECG signal is conformed to a second abnormal rhythm symptom different from the first abnormal rhythm symptom is determined based on the determined result of the first abnormal rhythm symptom. Accordingly, multiple abnormal rhythm assessments are integrated, the subsequent assessment is speeded-up and optimized according to the determined result of a previous assessment, so as to enable to implement on a handheld apparatus.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: October 6, 2020
    Assignee: Kinpo Electronics, Inc.
    Inventors: Koichi Haraikawa, Jen-Chien Chien, Chia-Chun Kuo, Chien-Hung Lin, Yi-Ta Hsieh, Tsui-Shan Hung, Yin-Tsong Lin
  • Patent number: 10720240
    Abstract: There is provided a context detection apparatus for use with a medical monitoring device arranged to measure a physiological characteristic of a subject. The context detection apparatus comprises at least one context sensor comprising a camera; and a processing unit. The processing unit is arranged to receive image data acquired by the camera from the at least one context sensor; analyze the received image data to generate a plurality of different types of context information; wherein each type of context information comprises information which relates to a factor capable of influencing measured values of the physiological characteristic and which is not measurable by the medical monitoring device; and output a signal to the medical monitoring device based on the generated context information.
    Type: Grant
    Filed: February 21, 2016
    Date of Patent: July 21, 2020
    Inventors: Thomas Falck, Teun Van Den Heuvel, Esther Marjan Van Der Heide, Adrienne Heinrich, Yingrong Xie
  • Patent number: 10568548
    Abstract: A portable telemetry device includes a physiological component, a fall detector component, a radio, and a communication component. The physiological component is configured to receive, from at least one sensor, physiological data representative of a physiological condition of a patient. The fall detector component is configured to detect a fall of the portable telemetry device. The radio is configured to wirelessly send radio signals. The communication component is configured to transmit the physiological data and an indication of the fall to a monitoring system using the radio.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: February 25, 2020
    Assignee: Shenzhen Mindray Bio-Medical Electronics Co., Ltd.
    Inventor: Frank Menzel
  • Patent number: 10529450
    Abstract: Techniques are described for real-time phase detection. For the phase detection, a signal is correlated with a frequency component of a frequency band whose phase is being detected, and the correlation includes predominantly decreasing weighting of past portions of the signals.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: January 7, 2020
    Assignee: Medtronic, Inc.
    Inventors: Robert A. Corey, Gregory J. Loxtercamp, Heather Diane Orser, Scott R. Stanslaski, Jadin C. Jackson
  • Patent number: 10477354
    Abstract: An electronic device worn on a user includes one or more accelerometers. The one or more accelerometers generate acceleration information based on acceleration experienced by the electronic device. The electronic device further includes a processor and one or more associated memories, and the one or more associate memories include computer program code executable by the processor. The processor, configured by the computer program code, causes the electronic device to process the acceleration information to extract features from the acceleration information. The processor, configured by the computer program code, further causes the electronic device to process the features to determine the location of the electronic device on the user.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: November 12, 2019
    Assignee: MC10, INC.
    Inventors: Shyamal Patel, Ryan S. McGinnis, Aadithya Prakash, Roozbeh Ghaffari, Milan Raj, Ikaro Silva, Elise Jortberg
  • Patent number: 10448852
    Abstract: A system and method for monitoring nerve activity in a subject. The system includes a plurality of electrodes placed in proximity to skin of the subject, an amplifier electrically connected to the electrodes and configured to generate a plurality of amplified signals corresponding to electrical signals received from the subject through the electrodes, and a signal processor. The signal processor applies a high-pass filter to the amplified signals to generate filtered signals from the amplified signals, identifies autonomic nerve activity in the plurality of filtered signals; and generates an output signal corresponding to the filtered signals. The high-pass filter attenuates a plurality of the amplified signals having frequencies that correspond to heart muscle activity during a heartbeat.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: October 22, 2019
    Assignee: Indiana University Research and Technology Corporation
    Inventors: Peng-Sheng Chen, Shien-Fong Lin
  • Patent number: 10426963
    Abstract: This document presents a system for managing treatment for an emergency cardiac event. The system includes memory, one or more electronic ports for receiving ECG signals, and a treatment module executable on one or more processing devices. The module is configured to perform a number of transformation on portions of an ECG signal into frequency domain data, obtain one or more previous values derived from one or more time segments of the ECG, and determine, based on the frequency domain data a first value and a second value, determine a probability of therapeutic success. The module is further configured to cause one or more output devices to present an indication of the probability of therapeutic success.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: October 1, 2019
    Assignee: ZOLL Medical Corporation
    Inventors: Gary A. Freeman, Weilun Quan, Ulrich Herken, Christopher Luke Kaufman
  • Patent number: 10363409
    Abstract: Cardiac electrodes and techniques for testing application of the electrodes to a victim are described herein.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: July 30, 2019
    Assignee: ZOLL Medical Corporation
    Inventors: Ziad F Elghazzawi, Gary A Freeman
  • Patent number: 10330491
    Abstract: A system (10) for pedestrian use includes an accelerometer (110) having multiple electronic sensors; an electronic circuit (100) operable to generate a signal stream representing magnitude of overall acceleration sensed by the accelerometer (110), and to electronically correlate a sliding window (520) of the signal stream with itself to produce peaks at least some of which represent walking steps, and further operable to electronically execute a periodicity check (540) to compare different step periods for similarity, and if sufficiently similar then to update (560) a portion of the circuit substantially representing a walking-step count; and an electronic display (190) responsive to the electronic circuit (100) to display information at least in part based on the step count. Other systems, electronic circuits and processes are disclosed.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: June 25, 2019
    Inventors: Jayawardan Janardhanan, Sandeep Rao, Goutam Dutta
  • Patent number: 10315040
    Abstract: An external defibrillator estimates the phase of ventricular defibrillation (VF) by deriving, from an ECG exhibiting VF, at least one quality marker representing the morphology of the ECG and, therefore, the duration of the VF. The duration of the VF is calculated as a function of the value (s) of the quality marker (s). The quality marker (s) may comprise any one or more of the median slope of the ECG, the average slope of the ECG, the ratio of the power in relatively high and low frequency bands of the ECG, and a measure of the density and amplitude of peaks in the ECG, over a predetermined period.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: June 11, 2019
    Inventors: John McCune Anderson, Cesar Oswaldo Navarro-Paredes, Rebecca DiMaio
  • Patent number: 10307133
    Abstract: A therapeutic device comprises a therapy electrode that includes a substrate, a conductive layer disposed on a lower surface of the substrate, an electrically conductive gel reservoir configured to release an electrically conductive gel onto a surface of the conductive layer, and an acoustic sensor coupled to the therapy electrode. The acoustic sensor is configured to acoustically couple to a body of a subject to which the therapy electrode is applied and to detect sounds indicative of a state of health of the subject. The therapeutic device is configured to transmit data regarding the sounds detected by the acoustic sensor to an external system for processing and analysis.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: June 4, 2019
    Inventor: Thomas E. Kaib
  • Patent number: 10251598
    Abstract: Methods, apparatuses, and computer readable mediums for waistband monitoring analysis for a user are provided. In a particular embodiment, a waistband monitoring device is configured to generate a motion pattern based on motion data from a motion sensor coupled to the waistband monitoring device; receive physiological data generated by a physiological sensor coupled to the waistband monitoring device, wherein the physiological data indicates at least one vital sign of the user; identify an activity of the user that corresponds to the motion data and the physiological data; and generate an analysis of the user's performance of the identified activity based on the motion data and the physiological data.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: April 9, 2019
    Assignee: CarePredict, Inc.
    Inventors: Ronald A. Barnes, David P. Elam, Jr., Bennett L. Ibey, Ehsaneh Shahhaidar, Gerald J. Wilmink, Jason B. Wilson, Daniel O. Womble
  • Patent number: 10230823
    Abstract: Embodiments of the present invention include a portable medical device with an integrated web server. The portable medical device is configured to establish a communication session with a user device. The integrated web server is configured to load software onto the user computing device for exchanging data with the portable medical device.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: March 12, 2019
    Inventor: Eric W. Brown
  • Patent number: 10123741
    Abstract: Systems and methods for determining a cardiac condition of the human based on acceleration measurements received from one or more accelerometers of a garment worn by a human, electrocardiogram measurements received from electrodes of a garment worn by the human, and a machine learning model previously determined based on training data. An alert message that indicates the determined cardiac condition may be transmitted or displayed to the human wearing the garment or another person who will assist the human. For example, a posture pattern may be determined based on the acceleration measurements. The cardiac condition may be determined based in part on the posture pattern.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: November 13, 2018
    Assignee: Huami Inc.
    Inventors: Yuanxiang Wang, Yuchen Wang, Fei Wang
  • Patent number: 10111616
    Abstract: Method, apparatus and computer-accessible medium for monitoring sleep quality of a user are described. For example, using such exemplary Method, apparatus and computer-accessible medium, it is possible to collect body movement signals of the user during sleep, and calculate body movement energy of a preset time-slot, based on the body movement signals collected during the preset time-slot. It is also possible to calculate an estimation threshold of a preset estimation time-span including the preset time-slot, based on body movement energy of preset time-slots which are included in the preset estimated time-span. Further, a determination can be made as to a sleep state of the user based on a comparison between the body movement energy of the preset time-slot and the estimation threshold of the preset estimation time-span. Such exemplary Method, apparatus and computer-accessible medium facilitate a strong adaptive ability and highly reliable sleep monitoring.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: October 30, 2018
    Inventors: Yuanzhu Dou, Lu Zhao
  • Patent number: 10022550
    Abstract: A method of performing transthoracic defibrillation is described. The method includes generating at least two different defibrillation waveforms using at least two different defibrillation circuits contained in separate housings, delivering each of the at least two different defibrillation waveforms across a respective electrical path of a plurality of electrical paths established across the thoracic cavity and through the heart of a patient by at least three electrodes attached to the thorax of the patient, and synchronizing delivery of the at least two different defibrillation waveforms with communications between the separate housings.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: July 17, 2018
    Assignee: ZOLL Medical Corporation
    Inventors: Gary A. Freeman, James E. Brewer, Michael L. Lopin
  • Patent number: 9981142
    Abstract: Appropriate cardiac therapy is determined by data sensed and analyzed by the disclosed defibrillators and other medical devices that one or both of treat and monitor a patient. The disclosed devices sense various patient physiological parameters including patient pulse and breathing data to determine whether the patient has a pulse and to determine if the patient is breathing. Depending on the analysis of the generated patient physiological data, the disclosed devices determine the appropriate therapy for the patient, which can include providing breathing assistance to the patient and providing electrotherapy and other therapies to the patient. Some of the disclosed medical devices can be wearable by the patient. The disclosed devices can include therapy modules like electrotherapy for delivering therapies to the patient while other devices monitor but do not deliver the therapies to the patient.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: May 29, 2018
    Assignee: Physio-Control, Inc.
    Inventors: Tae H. Joo, Ronald E. Stickney, Cynthia P. Jayne, Paula Lank, Patricia O'Hearn, David R. Hampton, James W. Taylor, William E. Crone, Daniel Yerkovich
  • Patent number: 9955938
    Abstract: Disclosed herein are methods and apparatus including medical devices having features for monitoring sounds and motions indicative of a state of health or administration of CPR to a subject. In one embodiment, a therapeutic device such as a therapy electrode comprises a layer configured to deliver a therapy to a subject and an acoustic sensor on the therapeutic device and coupled to the layer.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: May 1, 2018
    Inventor: Thomas E. Kaib
  • Patent number: 9907972
    Abstract: Embodiments relate to an implantable cardiac system, including a housing, electronic circuitry for controlling one or more of power management, processing unit, information memory and management circuit, sensing and simulation output. The system also includes diagnosis and treatment software for diagnosing health issues, diagnosing mechanical issues, determining therapy output and manage patient health indicators over time, a power supply system including at least one rechargeable battery, a recharging system, an alarm (or alert) system to inform patient of energy level and integrity of system, communication circuitry, one or more electrodes for delivering therapeutic signal to a heart and one or more electrodes for from delivering electrocardiogram signal from the heart to the electronic circuitry. The present embodiments further include a body orientation unit to determine body position and use same to control therapy.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: March 6, 2018
    Assignee: Neurocardiac Innovations, LLC
    Inventor: Nader Kameli
  • Patent number: 9795799
    Abstract: A system and method are described for delivering electrotherapy to a patient that includes delivering electrotherapy to defibrillate the patient and providing at least one non-interruptible time period for administration of CPR prior to entering a monitor mode during which a patient cardiac signal is monitored for indication of a shockable rhythm.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: October 24, 2017
    Inventor: Daniel J. Powers
  • Patent number: 9592403
    Abstract: In embodiments, a WCD system includes one or more transducers that may sense patient parameters from different parts of the patient's body, and thus render physiological inputs from those parameters. Individual analysis scores may be determined from the physiological inputs, and an aggregate analysis score may be determined from the individual analysis scores. A shock/no shock determination may be made depending on whether or not the aggregate analysis score meets an aggregate shock criterion. Accordingly, multiple inputs are considered in making the shock/no shock determination.
    Type: Grant
    Filed: November 14, 2015
    Date of Patent: March 14, 2017
    Inventor: Joseph L. Sullivan
  • Patent number: 9560980
    Abstract: An implantable medical device (IMD) is implanted in a patient. The IMD uses a plurality of electrode vectors to generate intrathoracic impedance measurements. The intrathoracic impedance measurements can be indicative of amounts of intrathoracic fluid in the patient. An accumulation of intrathoracic fluid may indicate that the patient is at an increased risk of experiencing a heart failure event in the near future. The IMD performs a vector selection operation on a recurring basis. When the IMD performs the vector selection operation, the IMD uses impedance measurements to select one of the electrode vectors. The IMD can perform a risk assessment operation on another recurring basis. During performance of the risk assessment operation, the IMD uses impedance measurements of the selected electrode vector and/or other patient characteristics stored within the IMD to determine whether the patient is at an increased risk of experiencing a heart failure event.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: February 7, 2017
    Assignee: Medtronic, Inc.
    Inventors: Sandra B. Charlton, James J. Sims
  • Patent number: 9498163
    Abstract: A method, system, and/or apparatus for automatically monitoring for possible mental or physical health concerns. The method or implementing software application uses or relies upon location information available on the mobile device from any source, such as cell phone usage and/or other device applications. The method and system automatically learns user activity patterns and detects significant deviations therefrom. The deviations are automatically analyzed for known correlations to mental or physical concerns, which can then be automatically communicated to a relevant friend, family member, and/or medical professional.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: November 22, 2016
    Assignee: PUSHD, INC.
    Inventors: Ophir Frieder, Eric Jensen, Abdur Chowdhury, Ben Cherry, Matt Sanford
  • Patent number: 9486145
    Abstract: A medical device comprises: a feeding tube (70) including a feeding lumen (80) with an opening (152) at a distal end of the feeding tube and an electrical lumen (84) having access openings (120) spaced apart along the feeding tube; a set of insulated electrical conductors (82) disposed in the electrical lumen, the set of insulated electrical conductors having electrically exposed portions (132, 132a, 132b) proximate to the access openings; and electrodes (72, 73, 74, 75, 78, 79, 140) comprising electrically conductive material portions (140) disposed in the access openings and electrically contacting the proximate electrically exposed portions of the set of insulated electrical conductors disposed in the electrical lumen. The electrodes include at least one upper or proximal electrode (74, 75, 78, 79) disposed above an expected patient heart electrical centerline (CL) and at least one lower or distal electrode (72, 73) disposed below the expected patient heart electrical centerline.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: November 8, 2016
    Inventors: David L. Feer, Daniel A. Silber
  • Patent number: 9459305
    Abstract: An implantable medical device including at least one electrode line having an electrode pole, an electrode feed line, a counter electrode to the at least one electrode line, and an insulation sleeve. The insulation sleeve surrounds the electrode feed line and provides insulation between the electrode feed line and an electrolyte formed by bodily fluid. The electrode feed line and the electrode pole(s) include different materials, wherein the materials are different based on electrochemical series. The implantable medical device includes an insulation test unit having a DC voltage detector arranged between the electrode pole and the counter electrode, in order to detect an electrochemical voltage produced in the event of an insulation fault of the insulation sleeve due to defective contact between the electrolyte and the electrode feed line.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: October 4, 2016
    Assignee: BIOTRONIK SE & CO. KG
    Inventor: Thomas Doerr
  • Patent number: 9454219
    Abstract: A system and method for conservation of battery power in a portable medical device is provided. In one example, a processor arrangement that includes a plurality of processors is implemented. At least one of these processors is configured to execute the critical functions of the medical device, while one or more other processors assume a reduced service level, thereby drawing significantly less power. According to this arrangement, the medical device conserves energy by drawing the additional electrical power needed to activate the additional processing power only when needed.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: September 27, 2016
    Assignee: ZOLL Medical Corporation
    Inventors: Shane S. Volpe, Richard A. Rattanni, Thomas E. Kaib
  • Patent number: 9439576
    Abstract: A lifesaving support apparatus includes: a sensor section which is adapted to be attachable to a patient, and which is configured to acquire information of blood flow of the patient; a determining section which, based on the information of blood flow, is configured to determine whether or not a use of an automatic external defibrillator is necessary; and an outputting section which is configured to notify a rescuer of information which is determined by the determining section.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: September 13, 2016
    Inventors: Tsutomu Wakabayashi, Hiroyuki Satake, Taku Iwami
  • Patent number: 9427597
    Abstract: A system and method of detecting a loss of electrical contact between a pair of electrodes that are electrically coupled to skin of a subject. The method includes monitoring parameters of a transthoracic impedance between the pair of electrodes in at least one of a low frequency regime and a high frequency regime, detecting an occurrence of chest compressions based on a signal indicative of chest compressions, establishing baseline levels of the parameters in at least one of the low and high frequency regimes, detecting whether changes in at least one parameter exceeds the baseline level by a threshold, determining that at least one electrode of the pair of electrodes is losing electrical contact with the skin responsive to the at least one parameter exceeding the baseline level by the threshold, and issuing an alert in response to a determination that the at least one electrode is losing electrical contact.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: August 30, 2016
    Inventor: Ulrich Herken
  • Patent number: 9415230
    Abstract: A current limiter for a defibrillation pulse is powered by the defibrillation pulse and switches the current delivery path open and closed when an excessive current condition exists. The excessive current condition is sensed by a sense resistor of the current limiter. The controlled current is delivered by an inductor which delivers a current which varies in a range about a predetermined current level during excessive current conditions. The current limiter dissipates little energy of the defibrillation pulse so that most of the energy produced by the defibrillator is delivered to the patient.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: August 16, 2016
    Inventor: Daniel Powers
  • Patent number: 9402553
    Abstract: A lifesaving support apparatus includes: a sensor section which is adapted to be attachable to a patient, and which is configured to acquire information of blood flow of the patient; a determining section which, based on the information of blood flow, is configured to determine whether or not a use of an automatic external defibrillator is necessary; and an outputting section which is configured to notify a rescuer of information which is determined by the determining section.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: August 2, 2016
    Inventors: Tsutomu Wakabayashi, Hiroyuki Satake, Taku Iwami
  • Patent number: 9398859
    Abstract: A wearable defibrillator consists of a vest (or belt) which is worn by the patient. The device monitors the patient's ECG with sensing electrodes and can monitor other patient conditions and in appropriate cases can treat certain conditions. An accelerometer(s) in the wearable defibrillator can allow for the device to determine the position, movements, forces applied to the patient, and/or the device. The device can use a least one patient motion detector generating a signal indicative of patient activity. Analysis of the signal can be indicative of patient activity appropriate for treatment or indication of device condition.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: July 26, 2016
    Inventors: Shane S. Volpe, John D. Macho, Wade Braden, Thomas E. Kaib, Marshal W. Linder
  • Patent number: 9370665
    Abstract: An external defibrillator system is disclosed that generates and applies a diagnostic signal to the patient in conjunction with defibrillation therapy. The diagnostic signal is designed to elicit a physiologic response from the patient's heart, namely, mechanical cardiac response and electrical cardiac response, electrical cardiac response only, or no cardiac response. Depending upon the type of cardiac response detected, the system selects an appropriate resuscitation protocol that considers the likely responsiveness of the patient to defibrillation therapy. In one practical embodiment, a stimulus signal is applied to patients that show mechanical and electrical capture in response to the diagnostic signal. The stimulus signal maintains the mechanical capture (and, therefore, perfusion) for a period of time prior to the delivery of a defibrillation pulse.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: June 21, 2016
    Assignee: PHYSIO-CONTROL, INC.
    Inventors: David R. Hampton, Isabelle Banville
  • Patent number: 9339652
    Abstract: Various aspects relate to a device which, in various embodiments, comprises a header, a neural stimulator, a detector and a controller. The header includes at least one port to connect to at least one lead, and includes first and second channels for use to provide neural stimulation to first and second neural stimulation sites for a heart. The controller is connected to the detector and the neural stimulator to selectively deliver a therapy based on the feedback signal. A first therapy signal is delivered to the first neural stimulation site to selectively control contractility and a second therapy signal is delivered to the second neural stimulation site to selectively control one of a sinus rate and an AV conduction. Other aspects and embodiments are provided herein.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: May 17, 2016
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Julia Moffitt, Imad Libbus
  • Patent number: 9294074
    Abstract: Physiological signals are denoised. In accordance with an example embodiment, a denoised physiological signal is generated from an input signal including a desired physiological signal and noise. The input signal is decomposed from a first domain into subcomponents in a second domain of higher dimension than the first domain. Target subcomponents of the input signal that are associated with the desired physiological signal are identified, based upon the spatial distribution of the subcomponents. A denoised physiological signal is constructed in the first domain from at least one of the identified target subcomponents.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: March 22, 2016
    Assignee: VivaQuant LLC
    Inventor: Marina Brockway
  • Patent number: 9289613
    Abstract: An electrical parameter value indicative of an impedance of an electrical path between a first medical device implanted within a patient and a second medical device implanted within the patient may be determined by generating and delivering an electrical signal between electrodes connected to the first medical device and sensing the electrical signal with two or more sense electrodes connected to the second medical device. In some examples, the electrical parameter value indicative of the impedance may be used to detect a system integrity issue, such as relative movement between the first and second medical devices, such as between leads connected to the medical devices, or a lead-related condition. In other examples, the determined impedance may indicate a transthoracic impedance of the patient.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: March 22, 2016
    Assignee: Medtronic, Inc.
    Inventors: John E. Burnes, Paul G. Krause
  • Patent number: 9242090
    Abstract: Herein is disclosed a probe, including a first electrode disposed at least partially on the probe surface, a second electrode disposed at least partially on the probe surface, a first conductor electrically coupled to the first electrode, a second conductor electrically coupled to the second electrode, and a reactive element electrically coupling the first conductor and the second conductor.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: January 26, 2016
    Assignees: MRI Interventions Inc., Greatbatch Ltd.
    Inventors: Ergin Atalar, Robert Susil, Albert Lardo, Henry R. Halperin
  • Patent number: 9238146
    Abstract: An external defibrillator includes patient electrodes (20) for obtaining the patient's electrocardiogram (ECG) and for applying a shock to the patient. A microprocessor (24) analyses the patient's ECU using a diagnostic algorithm to detect if the patient's heart is in a shockable rhythm, and shock delivery circuitry (10) is enabled when a shockable rhythm is detected by the diagnostic algorithm. The patient electrodes also allow obtaining a signal (Z) which is a measure of the patient's transthoracic impedance and the microprocessor is responsive to Z to detect conditions likely to cause the diagnostic algorithm to generate a false detection of a shockable rhythm. If such detection is made, the microprocessor prevents detection of a shockable rhythm by the diagnostic algorithm, at least for a period of time.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: January 19, 2016
    Assignee: Heartsine Technologies Limited
    Inventors: Cesar Oswaldo Navarro-Paredes, John McCune Anderson, Janice Anderson
  • Patent number: 9238148
    Abstract: A typical power switch in a Buck Regulator requires a pre-driver to ensure rapid transition from its ON to OFF states. In this invention, the shoot through current in the pre-driver and the power switch's gate-charge in a Buck regulator is itself recaptured in the capacitor of the buck regulator. The recapturing of this otherwise wasted shoot-through current and gate charge allows for increased efficiency of the regulator. The recapture may be selectively disabled to accommodate high power operations of the system, if such are used; the recapture may in an alternative mode be always performed. As a result, reduced power consumption can be achieved.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: January 19, 2016
    Assignee: CAMERON HEALTH, INC.
    Inventor: Ravi S. Ananth
  • Patent number: 9227070
    Abstract: A method and system for regulating the operation of a cardiac pacemaker or defibrillator are disclosed. A processor receives signals of both an implanted hemodynamic sensor and intracardiac electrograms and digitizes them. The digitized signal of the hemodynamic sensor is used to prevent inappropriate cardiac stimulation and erroneous cardiac detection. The hemodynamic signal is also used to define arrhythmias.
    Type: Grant
    Filed: August 6, 2006
    Date of Patent: January 5, 2016
    Inventor: Rami Rom
  • Patent number: 9220429
    Abstract: Systems, devices and methods described herein can be used to monitor and treat cardiovascular disease, and more specifically, can be used to determine heart rate (HR), determine respiration rate (RR) and classify cardiac rhythms based on atrial intracardiac electrogram (IEGM) and atrial pressure (AP) signals. The atrial IEGM and AP signals are subject to spectrum transforms to obtain an atrial IEGM frequency spectrum and an AP frequency spectrum. Based on peaks in the atrial IEGM and AP frequency spectrums measures of HR and RR are determined, and arrhythmias are detected and/or arrhythmia discrimination is performed.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 29, 2015
    Assignee: Pacesetter, Inc.
    Inventors: Yelena Nabutovsky, Neal L. Eigler, Lok Man Chu, James S. Whiting, Jenner Joseph
  • Patent number: 9186514
    Abstract: A method of modifying the force of contraction of at least a portion of a heart chamber, including providing a subject having a heart, comprising at least a portion having an activation, and applying a non-excitatory electric field having a given duration, at a delay after the activation, to the portion, which causes the force of contraction to be increased by a least 5%.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: November 17, 2015
    Assignee: Impulse Dynamics NV
    Inventors: Shlomo Ben-Haim, Nissim Darvish, Maier Fenster, Yuval Mika
  • Patent number: 9101780
    Abstract: An embodiment in accordance with the present invention provides an automatic external defibrillator including an anterior pad designed such that it can be used during an endoscopic or surgical procedure that may generate electromagnetic interference. The anterior pad has a first arm adhered longitudinally along and substantially parallel to a left side of a sternum of the subject and a second arm adhered along a 5th intercostal space of the subject. The device also includes a posterior pad. Both the anterior and posterior pads include electrodes for delivering a shock to the subject. The device can also include a wearable component containing sensing electrodes for measuring heart rhythms and a transmitting them to a monitor. The monitor monitors these heart rhythms and alerts the subject or medical care providers to irregularities in the rhythms.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: August 11, 2015
    Assignee: The Johns Hopkins University
    Inventors: Alan Cheng, Henry Halperin
  • Patent number: 9089718
    Abstract: A method of treating a patient for ventricular tachycardia using a wearable defibrillator includes monitoring the patient for a predetermined condition via one or more electrodes on the defibrillator, sending a message to the patient in response to the predetermined condition, activating the defibrillator so that the defibrillator delivers defibrillation energy to the patient, and storing at least one of the results of the monitoring, sending and activating steps in a memory on the defibrillator. The method also includes downloading information stored in the memory of the defibrillator to a base station having an external interface, and transmitting the information downloaded from the memory of the base station to an external location via the external interface of the base station.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: July 28, 2015
    Inventors: James M. Owen, Randall W. Fincke, James P. O'Leary, Mark H. Totman
  • Publication number: 20150148856
    Abstract: This document relates to cardiac resuscitation, and in particular to systems and techniques for protecting rescuers from electrical shock during defibrillation of a patient.
    Type: Application
    Filed: November 27, 2013
    Publication date: May 28, 2015
    Inventors: Gary A. Freeman, Weilun Quan
  • Publication number: 20150134020
    Abstract: A system and method for use during the administration of CPR chest compressions and defibrillating shock on a cardiac arrest victim. The system analyzes compression waveforms from a compression depth monitor to determine the source of chest compressions, and enables the delivery of defibrillating shock during a compression cycle if the compression waveforms are characteristic of an automated CPR chest compression device.
    Type: Application
    Filed: January 26, 2015
    Publication date: May 14, 2015
    Inventors: Ulrich R. Herken, Gary A. Freeman
  • Patent number: 9026147
    Abstract: A defibrillator is disclosed for communication with a transmitter associated with a location. The defibrillator is configured to generate an electronic signature for determining a position of the defibrillator within the location. The electronic signature includes electronic data correlating the position of the defibrillator to the transmitter. The electronic data may include GPS data. The defibrillator is configured to generate the electronic signature during a first and a second window of time to define a first and a second electronic signature. A differential between the first and the second electronic signatures corresponds to a positional state of the defibrillator, indicating movement within or between two locations. In a disclosed system, the first electronic signature is stored in a database and a server is configured to generate the differential and to communicate the positional state of the defibrillator to a stakeholder. Methods of use are also disclosed.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: May 5, 2015
    Assignee: Physio-Control, Inc.
    Inventors: Moira Montgomery Galvin, Kevin C Drew, Todd Klump, John Robert Knapinski, Dana S Lewis, Steve M Silkes
  • Patent number: 9014809
    Abstract: An exemplary embodiment includes acquiring an electroneurogram of the right carotid sinus nerve or the left carotid sinus nerve, analyzing the electroneurogram for at least one of chemosensory information and barosensory information and calling for one or more therapeutic actions based at least in part on the analyzing. Therapeutic actions may aim to treat conditions such as sleep apnea, an increase in metabolic demand, hypoglycemia, hypertension, renal failure, and congestive heart failure. Other exemplary methods, devices, systems, etc., are also disclosed.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: April 21, 2015
    Assignee: Pacesetter, Inc.
    Inventors: Brian J. Wenzel, Taraneh Ghaffari Farazi
  • Publication number: 20150102925
    Abstract: A method detects a biological condition and detects a change in the biological condition of a mammal. The device determines if the change in the biological condition exceeds a predetermined threshold and sends a signal based at least in part on the determination.
    Type: Application
    Filed: June 11, 2014
    Publication date: April 16, 2015
    Inventors: Ivo Foldyna, Kenneth J. Stethem
  • Publication number: 20150094783
    Abstract: A system and method for long-term monitoring of cardiac conditions such as arrhythmias is disclosed. The invention includes a pulse generator including means for sensing an arrhythmia. The pulse generator is coupled to at least one subcutaneous electrode or electrode array for providing electrical stimulation such as cardioversion/defibrillation shocks and/or pacing pulses. The electrical stimulation may be provided between multiple subcutaneous electrodes, or between one or more such electrodes and the housing of the pulse generator. In one embodiment, the pulse generator includes one or more electrodes that are isolated from the can. These electrodes may be used to sense cardiac signals.
    Type: Application
    Filed: September 18, 2014
    Publication date: April 2, 2015
    Inventors: Ward M. Brown, Stephen D. Heinrich
  • Patent number: 8996100
    Abstract: An electrode structure for use with a monitoring system. A thin flexible body of an electrode material comprising conductive rubber is provided with projections extending externally to a working surface. According to this construction of the working surface of the electrode only the projections make a contact to the recipient's skin. When the projections are provided with a small cross-section, the constant electrode-skin contact is ensured due to the resiliency of the electrode material.
    Type: Grant
    Filed: March 6, 2003
    Date of Patent: March 31, 2015
    Assignee: Koninklijke Philips N.V.
    Inventors: Johannes Johanna Van Herk, Markus Cornelis Jakobus Lazeroms