Cardioverting/defibrillating Patents (Class 607/5)
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Patent number: 10729910Abstract: According to at least one aspect, a wearable cardiac device is provided. The wearable cardiac device includes a garment worn about a torso of a patient, at least one sensing electrode to monitor cardiac activity of the patient, and a controller including a plurality of separate and distinct modules distributed about and/or integrated into the garment. The plurality of separate and distinct modules includes, for example, an operations module coupled to the at least one sensing electrode and configured to detect at least one cardiac condition of the patient and/or a communications module coupled to the operations module to communicate with an external device. In some examples, the wearable cardiac device may be configured as a treatment device and include an energy storage module coupled to at least one therapy electrode and configured to store energy for at least one therapeutic shock to be applied to the patient.Type: GrantFiled: November 21, 2016Date of Patent: August 4, 2020Assignee: Zoll Medical CorporationInventors: Thomas E. Kaib, Shane S. Volpe, Gregory R. Frank, Gary A. Freeman, Mark Jerome Owens
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Patent number: 10729913Abstract: A patient-worn arrhythmia monitoring and treatment device includes a pair of therapy electrodes and at least one pair of sensing electrodes disposed proximate to the skin and configured to continually sense at least one ECG signal of the patient over an extended period of time. The device includes a therapy delivery circuit coupled to the pair of therapy electrodes and configured to deliver one or more therapeutic pulses. A controller coupled to therapy delivery circuit is configured to analyze the at least one ECG signal and detect one or more treatable arrhythmias and cause the therapy delivery circuit to deliver the one or more therapeutic pulses to the patient. At least one of the one or more therapeutic pulses is formed as a biphasic waveform delivering within 15 percent of 360 J of energy to a patient body having a transthoracic impedance from about 20 to about 200 ohms.Type: GrantFiled: March 19, 2018Date of Patent: August 4, 2020Assignee: Zoll Medical CorporationInventors: Gary A Freeman, James G Radzelovage
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Patent number: 10729906Abstract: A circuit includes first and second current control sub-circuits connected in series between a DC supply voltage node and a reference voltage node and third and fourth current control sub-circuits connected in series between the DC supply voltage node and the reference voltage node. The circuit also includes a DC/DC converter with a first input terminal coupled to the first load node between the first and second current control sub-circuits, a second input terminal coupled to a second load node between the third and fourth current control sub-circuits, a first output terminal, and a second output terminal. The circuit further includes output electrodes, a routing sub-circuit for selectively coupling the output electrodes to the output terminals, and a controller configured for operating the routing sub-circuit and the current control sub-circuits to cause the DC/DC converter to supply biphasic pulses for at least one of the pairs of output electrodes.Type: GrantFiled: December 19, 2016Date of Patent: August 4, 2020Assignee: Vanderbilt UniversityInventors: Michael Goldfarb, Kevin Ha, Don Truex
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Patent number: 10722704Abstract: Methods for implanting a puke generator (PG) within a pectoral region of a chest of a patient and devices having the PG. The PG has a housing that includes a PG electrode. Methods also include implanting at least one lead having first and second electrode segments with the first electrode segment positioned along an anterior of the chest of the patient and the second electrode segment positioned along at least one of a posterior of the patient or a side of the patient. The first and second electrode segments are positioned subcutaneously at or below an apex of a heart of the patient, wherein the PG electrode and the first and second electrode segments are configured to provide electrical shocks for antiarrhythmic therapy.Type: GrantFiled: May 7, 2018Date of Patent: July 28, 2020Assignee: Pacesetter, Inc.Inventors: Xiaoyi Min, Avi Fischer, Kyungmoo Ryu, Gabriel A. Mouchawar
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Patent number: 10716949Abstract: A medical device that includes a power source, a therapy delivery interface, therapy electrodes, electrocardiogram (ECG) sensing electrodes to sense ECG signal of a heart of a patient, a sensor interface to receive and digitize the ECG signal, and a processor. The processor is configured to analyze the ECG signal to determine a cardiac rhythm and a transform value representing a magnitude of a frequency component of the cardiac rhythm, analyze the cardiac rhythm and the transform value to detect a shockable cardiac arrhythmia by classifying the cardiac rhythm as a noise rhythm or a shockable cardiac arrhythmia rhythm based on the transform value, and causing the processor to detect the cardiac arrhythmia if classifying the cardiac rhythm as a shockable cardiac arrhythmia rhythm, initiate a treatment alarm sequence, adjust the shock delivery parameter for a defibrillation shock, and provide the defibrillation shock via the therapy electrodes.Type: GrantFiled: March 19, 2018Date of Patent: July 21, 2020Assignee: ZOLL Medical CorporationInventors: Gary A. Freeman, Weilun Quan, Christopher Luke Kaufman, Kent Volosin
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Patent number: 10716937Abstract: Recovery circuitry for passively recovering charge from capacitances at electrodes in an Implantable Pulse Generator (IPG) is disclosed. The passive recovery circuitry includes passive recovery switches intervening between each electrode node and a common reference voltage, and each switch is in series with a variable resistance that may be selected based on differing use models of the IPG. The passive recovery switches may also be controlled in different modes. For example, in a first mode, the only recovery switches closed after a stimulation pulse are those associated with electrodes used to provide stimulation. In a second mode, all recovery switches are closed after a stimulation pulse, regardless of the electrodes used to provide stimulation. In a third mode, all recovery switches are closed continuously, which can provide protection when the IPG is in certain environments (e.g., MRI), and which can also be used during stimulation therapy itself.Type: GrantFiled: September 5, 2017Date of Patent: July 21, 2020Assignee: Boston Scientific Neuromodulation CorporationInventors: Emanuel Feldman, Goran N. Marnfeldt, Jordi Parramon
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Patent number: 10702701Abstract: A defibrillation system that includes a first defibrillation device and a second defibrillation device. The first defibrillation device including a therapy module, a communication module, a physiological parameter module and a timing control unit. The second defibrillation device including a therapy module and a communication module. The timing control unit configured to output an instruction to cause the therapy module of the first defibrillator and the therapy module of the second defibrillator to each discharge an energy delivery according to a timing relationship.Type: GrantFiled: October 19, 2017Date of Patent: July 7, 2020Assignee: PHYSIO-CONTROL, INC.Inventors: Matthew L. Bielstein, Ryan W. Apperson, Reza Sharif, Kenneth P. Holmes, Wendy L. Warne
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Patent number: 10675213Abstract: A device for supporting determination of return of spontaneous circulation, ROSC, during an associated cardiopulmonary resuscitation, CPR, procedure which is being performed on an associated patient. A sensor is used to sense a physiological signal of the patient. Frequency analysis of the signal is carried out to extract dominant fundamental frequency components in the signal. From this analysis it is possible to determine that there has been a potential ROSC.Type: GrantFiled: June 23, 2016Date of Patent: June 9, 2020Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Ralph Wilhelm Christianus Gemma Rosa Wijshoff, Jens Muehlsteff, Simone Cornelia Maria Anna Ordelman, Wouter Herman Peeters
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Patent number: 10675471Abstract: An implantable medical device system is configured to detect a tachyarrhythmia from a cardiac electrical signal and start an ATP therapy delay period. The implantable medical device determines whether the cardiac electrical signal received during the ATP therapy delay period satisfies ATP delivery criteria. A therapy delivery module is controlled to cancel the delayed ATP therapy if the ATP delivery criteria are not met and deliver the delayed ATP therapy if the ATP delivery criteria are met.Type: GrantFiled: August 15, 2017Date of Patent: June 9, 2020Assignee: Medtronic, Inc.Inventors: Xusheng Zhang, Yanina Grinberg, Paul R. Solheim, Troy E. Jackson, Timothy A. Ebeling, Vladimir P. Nikolski
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Patent number: 10665078Abstract: A variety of methods, medical devices, responder network servers, emergency services interfaces and call center related processes are described that can help improve responder networks designed to get a medical device such as an automated external defibrillator and/or volunteer responders to the scene of a potential medical incident.Type: GrantFiled: January 13, 2020Date of Patent: May 26, 2020Assignee: Avive Solutions, Inc.Inventors: David Picco, Sameer Jafri, Micah R. Bongberg, Rory M. Beyer, Gordon Moseley P. Andrews
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Patent number: 10646707Abstract: Techniques that enable medical devices to quickly recover from loss of sensory functions are provided. In some examples, a medical device is configured to advantageously leverage differences between a first type of sensing electrode and a second type of sensing electrode that has a shorter recovery time than the first type of sensing electrode. In some examples, a medical device is configured to reference data generated by a first conditioning circuit that is configured to process signals acquired under a first set of environmental conditions and to reference data generated by a second conditioning circuit that is configured to process signal acquired under a second set of environmental conditions. In some examples, a medical device is configured to arrange electrodes used by the medical device to acquire signals in at specific locations to reduce the amount of disruptive power the electrodes encounter.Type: GrantFiled: November 30, 2017Date of Patent: May 12, 2020Assignee: ZOLL MEDICAL CORPORATIONInventors: Kent Volosin, Shane S. Volpe, Gary A. Freeman
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Patent number: 10638978Abstract: The present invention relates to a processing device for processing accelerometer signals (17, 17a-c) for use in monitoring vital signs of a subject, comprising—a signal input unit (38) for inputting an accelerometer signal (17, 17a-c) of the subject in time, the accelerometer signal (17, 17a-c) being related to at least one physiological event being a cardiovascular or a respiratory event of the subject and measured for at least one spatial direction, an envelope determination unit (19, 40) for determining an envelope signal (21) of the input accelerometer signal (17, 17a-c), a calculation unit (44) for calculating an adjustment factor (43) based on an estimated time interval (45) between a first and a second physiological event of the subject, and a signal adjustment unit (42) for adjusting the determined envelope signal (21) by multiplying the envelope signal (21) with the calculated adjustment factor (43).Type: GrantFiled: February 4, 2016Date of Patent: May 5, 2020Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Rene Martinus Maria Derkx, Thomas Gerhard Emmrich, Bernd Guenter Werner Wilm
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Patent number: 10617323Abstract: Changes in electrical stimulation therapy delivered via a medical device are coordinated with Functional Magnetic Resonance Imaging (fMRI) scans. In one example, a medical device delivers electrical stimulation therapy to a patient in an MRI unit, where the medical device is configured to cycle electrical stimulation therapy between a plurality of stimulation states. An indication that the medical device will cycle the electrical stimulation therapy or has cycled the electrical stimulation therapy while the patient is in the MRI unit or being imaged by the MRI unit is generated, and an MRI scan of the patient via an MRI workstation is initiated based on the indication. In another example, a medical device detects activation of an MRI scan and automatically switches stimulation states based upon the detection of the MRI scan, such that the scan is associated with a particular stimulation state.Type: GrantFiled: January 10, 2018Date of Patent: April 14, 2020Assignee: Medtronic, Inc.Inventors: James M. Olsen, Steven M. Goetz
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Patent number: 10621846Abstract: A variety of methods, medical devices, responder network servers, emergency services interfaces and call center related processes are described that can help improve responder networks designed to get a medical device such as an automated external defibrillator and/or volunteer responders to the scene of a potential medical incident.Type: GrantFiled: January 2, 2020Date of Patent: April 14, 2020Assignee: Avive Solutions, Inc.Inventors: Rory M. Beyer, Gordon Moseley P. Andrews, David Picco, Sameer Jafri
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Patent number: 10617577Abstract: A smart safety kit includes one or more medical products, a container configured to receive the medical products therein, an interface coupled to the container, a processor, and a memory. The container and the medicals product are separate and distinct. The memory is coupled to the container and includes instructions stored thereon that, when executed by the processor, cause the interface to communicate step-by-step medical instructions for administering treatment to a patient with the medical products.Type: GrantFiled: August 7, 2018Date of Patent: April 14, 2020Assignee: Rescue Box, Inc.Inventors: Steven Templeton, Michelle Pelletier
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Patent number: 10583297Abstract: A stimulation protocol determination system includes an input module and a selector module. The input module is provided to receive an indication of an upper airway flow limitation via sensed respiratory effort information. The selection module is provided to automatically select, based on the indicated upper airway flow limitation, a stimulation protocol.Type: GrantFiled: January 9, 2018Date of Patent: March 10, 2020Assignee: Inspire Medical Systems, Inc.Inventors: Quan Ni, Mark A. Christopherson, John Rondoni
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Patent number: 10583306Abstract: An implantable cardioverter defibrillator (ICD) starts a timer set to a time interval in response to a cardiac electrical signal crossing a noise threshold amplitude and resets the timer to the time interval in response to each crossing of the noise threshold amplitude by the cardiac electrical signal that occurs prior to the time interval expiring. A control circuit of the ICD determines a parameter of the behavior of the timer and identifies a sensed cardiac event as an electromagnetic interference (EMI) event based on the parameter. The ICD may detect EMI in response to the EMI event and withhold a tachyarrhythmia detection or therapy in response to EMI detection.Type: GrantFiled: January 26, 2017Date of Patent: March 10, 2020Assignee: Medtronic, Inc.Inventors: Xusheng Zhang, Saul E. Greenhut, Michael W. Heinks, Paul R. Solheim
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Patent number: 10580280Abstract: A variety of methods, medical devices, responder network servers, emergency services interfaces and call center related processes are described that can help improve responder networks designed to get a medical device such as an automated external defibrillator and/or volunteer responders to the scene of a potential medical incident.Type: GrantFiled: September 6, 2019Date of Patent: March 3, 2020Assignee: Avive Solutions, Inc.Inventors: David Picco, Sameer Jafri, Micah R. Bongberg, Rory M. Beyer, Gordon Moseley P. Andrews
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Patent number: 10555870Abstract: A system for improving cardiac output of a patient suffering from pulseless electrical activity or shock and yet displays myocardial wall motion including: a sensor to detect myocardial activity to determine the presence of residual left ventricular pump function having a contraction or ejection phase and a filling or relaxation phase, a device to prompt the application of or apply a compressive force repeatedly applied to the chest based on the sensed myocardial activity such that the compressive force is applied during at least some of the ejection phases and is ceased during at least some of the relaxation phases to permit residual cardiac filling, thereby enhancing cardiac output and organ perfusion.Type: GrantFiled: October 24, 2017Date of Patent: February 11, 2020Assignee: ZOLL Medical CorporationInventors: Norman Paradis, David Barash, Henry R. Halperin, Gary A. Freeman
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Patent number: 10556120Abstract: A multi-mode electronic medical device for providing resuscitative therapy. The device comprising a housing having a front side positioned to be visible to a user of the device during use, and a user-selectable input to allow the user to select between a basic life support mode and an advanced life support mode. The device further comprising a display on the front of the device housing configured to display a first set of text and/or graphics in the basic life support mode and to display a second set of text and/or graphics, which are more complete than the first set of text and/or graphics, when the device is switched to the advanced life support mode via the user-selectable input. Additionally, the device comprising circuitry configured to control the display based on whether the medical device is operating in the basic life support mode or the advanced life support mode.Type: GrantFiled: September 25, 2018Date of Patent: February 11, 2020Assignee: ZOLL Medical CorporationInventors: Ziad F Elghazzawi, John Kubat, Frederick W. Faller, Jing Pan, Peter Lund
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Patent number: 10549108Abstract: A method for extinguishing a cardiac arrhythmia utilizes destructive interference of the passing of the reentry wave tip of an anatomical reentry through a depolarized region created by a relatively low voltage electric field in such a way as to effectively unpin the anatomical reentry. Preferably, the relatively low voltage electric field is defined by at least one unpinning shock(s) that are lower than an expected lower limit of vulnerability as established, for example, by a defibrillation threshold test. By understanding the physics of the electric field distribution between cardiac cells, the method permits the delivery of an electric field sufficient to unpin the core of the anatomical reentry, whether the precise or estimated location of the reentry is known or unknown and without the risk of inducting ventricular fibrillation. A number of embodiments for performing the method are disclosed.Type: GrantFiled: August 27, 2018Date of Patent: February 4, 2020Assignee: The Washington UniversityInventors: Igor R. Efimov, Valentin Krinski, Vladmir P. Nikolski
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Patent number: 10542897Abstract: The present disclosure facilitates capture of biosignal such as biopotential signals in microvolts, or sub-microvolts, resolutions that are at, or significantly below, the noise-floor of conventional electrocardiographic and biosignal acquisition instruments. In some embodiments, the exemplified system disclosed herein facilitates the acquisition and recording of wide-band phase gradient signals (e.g., wide-band cardiac phase gradient signals, wide-band cerebral phase gradient signals) that are simultaneously sampled, in some embodiments, having a temporal skew less than about 1 ?s, and in other embodiments, having a temporal skew not more than about 10 femtoseconds. Notably, the exemplified system minimizes non-linear distortions (e.g., those that can be introduced via certain filters) in the acquired wide-band phase gradient signal so as to not affect the information therein.Type: GrantFiled: August 26, 2016Date of Patent: January 28, 2020Assignee: Analytics For Life Inc.Inventors: Sunny Gupta, Don Crawford, Timothy Burton, Shyamlal Ramchandani, Kristine Canavan
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Patent number: 10543363Abstract: A medical electrical lead and methods of implanting medical electrical leads in lumens. Leads in accordance with the invention employ preformed biases to stabilize the lead within a lumen or lumen and to provide feedback to lead implanters.Type: GrantFiled: November 6, 2015Date of Patent: January 28, 2020Assignee: RESPICARDIA, INC.Inventor: Randy W. Westlund
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Patent number: 10537746Abstract: An automated external defibrillator (AED) is described which spends an increased proportion of a rescue in a CPR mode. This is accomplished by use of a single shock protocol which causes the AED to spend less time in shock analysis and delivery activities as compared with the typical multiple shock protocol. An AED of the present invention preferably is configured such that the rescue protocol can be modified or changed easily without the need to remove the battery or use specialized hardware or software. Preferably the shock waveform of the single shock is a biphasic waveform delivering at least 150 Joules of energy and more preferably at least 200 Joules of energy.Type: GrantFiled: January 30, 2018Date of Patent: January 21, 2020Assignee: KONINKLIJKE PHILIPS N.V.Inventor: David Snyder
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Patent number: 10532216Abstract: The present invention provides both methods and devices for termination of arrhythmias, such as ventricular or atrial tachyarrhythmias. The device and method involves application of alternating current (AC) for clinically significant durations at selected therapeutic frequencies through the cardiac tissue to a subject experiencing arrhythmia. Methods are also provided to minimize or eliminate pain during defibrillation.Type: GrantFiled: January 23, 2015Date of Patent: January 14, 2020Assignee: The Johns Hopkins UniversityInventors: Harikrishna Tandri, Ronald David Berger, Seth Weinberg, Leslie Tung, Henry Halperin, David Hunter
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Patent number: 10532217Abstract: An ambulatory medical device comprising: a monitoring component comprising at least one sensing electrode for detecting a cardiac condition of a patient; at least one processor configured for: adjusting one or more detection parameters for detecting the cardiac condition of the patient based at least in part on at least one of 1) one or more environmental conditions and 2) input received from the monitoring component; and providing at least one of an alarm and a treatment in response to detecting the cardiac condition of the patient based on the adjusted one or more detection parameters.Type: GrantFiled: September 15, 2016Date of Patent: January 14, 2020Assignee: ZOLL Medical CorporationInventors: Gary A. Freeman, Thomas E. Kaib, Shane S. Volpe
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Patent number: 10529211Abstract: This document relates to systems and techniques for providing response to emergency situations, such as traffic accidents, cardiac arrest, or other medical emergencies.Type: GrantFiled: February 9, 2018Date of Patent: January 7, 2020Inventors: Gary A Freeman, Mark Totman, Jon P Cloutier, Ulrich Herken, Colin Thomas, Jeffrey Resnick
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Patent number: 10500404Abstract: An adaptable healthcare module that is coupleable to one or more defibrillator devices is disclosed. The adaptable health care module includes a healthcare coupling to assist with treatment and/or monitoring of a patient. The healthcare coupling can be active while decoupling the adaptable healthcare module from a first defibrillator device and coupling to a second defibrillator device. The coupling of the adaptable healthcare module includes a mechanical engagement, between the adaptable healthcare module and the defibrillator device, to retain the adaptable healthcare module to the defibrillator device.Type: GrantFiled: April 18, 2016Date of Patent: December 10, 2019Assignee: Physio-Control, Inc.Inventors: Kenneth J. Peterson, John C. Daynes, Mitchell A. Smith, Moira M. Galvin, David B. Stewart, Jennifer G. Jensen, Matthew L. Bielstein, Cathlene D. Buchanan, Jeffrey S. Edwards, Clayton M. Young, Karen K. Langman, Bethany J. Johnson
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Patent number: 10500403Abstract: A wearable cardioverter defibrillator (“WCD”) system may output a loud sound after detecting and validating a shockable cardiac arrhythmia. In such embodiments, however, the WCD system might not sound a loud alarm before validating the arrhythmia thoroughly, i.e. for a longer time, thus giving the arrhythmia a further chance to self-terminate. The WCD system may thus detect more robustly the cardiac arrhythmias that do not self-terminate quickly. Such arrhythmias that self-terminate quickly may occur from likely harmless events occurring multiple times in the daily life of the patient, such as the patient becoming “winded” from climbing stairs. In embodiments the WCD system may notify the patient only discreetly, or even not at all. The lack of sounding such a loud alarm responsive to such events reduces the overall number of times in which the patient experiences unwanted attention by others, embarrassment, loss of privacy and dignity, and so on.Type: GrantFiled: July 12, 2017Date of Patent: December 10, 2019Assignee: WEST AFFUM HOLDINGS CORP.Inventors: Phillip D. Foshee, Jr., David P. Finch, Laura M. Gustavson, Nikolai Korsun, Joseph L. Sullivan
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Patent number: 10493289Abstract: A system and method for conservation of battery power in a portable medical device is provided. In one example, a processor arrangement includes a dual core processor having an ARM core and a DSP core. The portable medical device includes a monitor having the dual core processor, in communication with a belt node processor. The DSP core receives physiological data from the physiological sensor and sends the physiological data to the ARM core. The ARM core analyzes the physiological data to determine if a treatment sequence is necessary. The DSP core receives physiological data from the at least one physiological sensor and sends the physiological data to the ARM core, and also analyzes the physiological data to determine proper timing of the treatment sequence by the at least one therapy delivery device to synchronize at least one pulse of the treatment sequence with the physiological data.Type: GrantFiled: July 18, 2016Date of Patent: December 3, 2019Assignee: ZOLL Medical CorporationInventors: Shane S. Volpe, Richard A. Rattanni, Thomas E. Kaib
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Patent number: 10490308Abstract: Devices, systems, software and methods for CPR quality assessment. Patient data is received that may be derived from a session of administering sets of CPR chest compressions to a patient. The sets can be separated by pauses. Then a figure of merit (FOM) can be computed from the data. In the computation, at least one pause can contribute a penalty to the FOM. The penalty has a value determined from at least one control factor, other than a constant linear dependence on the duration of the pause. This way, pauses can incur penalties to the FOM computation depending on their context, instead of merely their duration. For example, a penalty can escalate non-linearly if its pause becomes unduly long, or if it follows a set of chest compressions that was unduly short. As such, a better CPR quality assessment is achieved.Type: GrantFiled: October 31, 2013Date of Patent: November 26, 2019Assignee: PHYSIO-CONTROL, INC.Inventors: Fred W. Chapman, Robert G. Walker
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Patent number: 10478082Abstract: Provided is a film-type biomedical signal measuring apparatus configured in a such a way that a plurality of metallic thin film electrodes and a circuit unit are formed on a film-type piezoelectric element so as to easily attach the apparatus to the skin and an electrical signal as well as an electrical signal of a human body is simultaneously measured using the plurality of metallic thin film electrodes and the circuit unit. Accordingly, the film-type biomedical signal measuring apparatus simultaneously measures electrocardiogram (ECG) and ballistocardiogram (BCG) from the simultaneously measured electrical signal and vibration signal of the human body and extracts biomedical information of various types of health indexes such as a heart rate, a stress index, BCG, a blood pressure, an amount of physical activity, a respiration rate, and VO2max from the two different biomedical signals.Type: GrantFiled: March 24, 2014Date of Patent: November 19, 2019Assignee: Seoul National University R&DB FOUNDATIONInventors: Hee Chan Kim, Seung Woo Noh, Chi Yul Yoon
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Patent number: 10478622Abstract: Systems and methods of use for guiding the flow of energy through a subject to stimulate tissue.Type: GrantFiled: September 8, 2015Date of Patent: November 19, 2019Assignee: Sage Products, LLCInventor: Brian J. Fahey
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Patent number: 10456553Abstract: Representative embodiments of the present invention provide for novel, minimally invasive implantable devices and methods for targeted tissue drug delivery of cardiovascular drugs.Type: GrantFiled: September 18, 2018Date of Patent: October 29, 2019Assignee: Native Cardio, Inc.Inventors: Young D. Kim, Joseph V. Pergolizzi, Scot Johnson
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Patent number: 10449379Abstract: An automated external defibrillator (“AED”) (10) employing a self-test circuit (11) and an encoded status indicator. The self-test circuit (11) automatically tests AED (10) and dependent upon the tests, generates both a base status signal (110) indicative of an operational readiness of AED (10) and a test status signal (120) indicative of self-test information of AED (10). The encoded status indicator concurrently visually indicates both the base status signal (110) and the test status signal (120) with the visual indication of the base status signal (110) being perceivable to a human eye and the visual indication of the test status signal (120) being unperceivable to the human eye. The encoded status indicator may employ a light source (14) for emitting a status light (20) and an encoder (13) to intensity modulate the status light (20) as emitted by the light source (14) as a function of an encoding of the base status signal (110) and the test status signal (120) by the encoder (13).Type: GrantFiled: February 4, 2015Date of Patent: October 22, 2019Assignee: KONINKLIJKE PHILIPS N.V.Inventor: Lukasz Pawel Kutek
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Patent number: 10449380Abstract: Several defibrillators, defibrillator architectures, defibrillator components and methods of operating defibrillators are described. In one aspect, a defibrillator (as for example an automated external defibrillator) that can be powered by a mobile communication device such as a smart cellular phone or a tablet computer is described. Utilizing a phone (or other mobile communication device) as the power supply for an external defibrillator allows the external defibrillator to be smaller and, in some circumstance, removes the need for a battery that stores sufficient energy for shock delivery—which would need to be checked and/or replaced on a regular basis. Additionally, when desired, certain control functionality, computation, data processing, and user instructions can be handled/presented by the mobile communications device thereby further simplifying the defibrillator design and improving the user experience.Type: GrantFiled: December 7, 2017Date of Patent: October 22, 2019Assignee: Revive Solutions, Inc.Inventor: Gordon Moseley P. Andrews
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Patent number: 10441805Abstract: Methods and apparatus for a three-stage atrial cardioversion therapy that treats atrial arrhythmias within pain tolerance thresholds of a patient. An implantable therapy generator adapted to generate and selectively deliver a three-stage atrial cardioversion therapy and at least two leads, each having at least one electrode adapted to be positioned proximate the atrium of the patient. The device is programmed for delivering a three-stage atrial cardioversion therapy via both a far-field configuration and a near-field configuration of the electrodes upon detection of an atrial arrhythmia. The three-stage atrial cardioversion therapy includes a first stage for unpinning of one or more singularities associated with an atrial arrhythmia, a second stage for anti-repinning of the one or more singularities, both of which are delivered via the far-field configuration of the electrodes, and a third stage for extinguishing of the one or more singularities delivered via the near-field configuration of the electrodes.Type: GrantFiled: October 9, 2017Date of Patent: October 15, 2019Assignee: The Washington UniversityInventors: Igor R. Efimov, Wenwen Li, Ajit Janardhan
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Patent number: 10426405Abstract: In some examples, cardiac cycle detection may be used as a more or less default approach to cardiac activity tracking. Additional rate measurement relying on different sources or analyses may require extra power consumption over the cycle detection methods. Therefore, new methods and devices are disclosed that selectively activate a second cardiac rate measurement when needed. In some illustrative methods and devices, decisions are made as to whether and which previously collected data, if any, is to be discarded, replaced, or corrected upon activation of the second cardiac rate measurement.Type: GrantFiled: November 29, 2016Date of Patent: October 1, 2019Assignee: CARDIAC PACEMAKERS, INC.Inventors: Krzysztof Z. Siejko, Amy Jean Brisben, Stephen J. Hahn, Keith L. Herrmann, Venugopal Allavatam
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Patent number: 10426966Abstract: In some embodiments, a wearable cardioverter defibrillator (“WCD”) system may output a closing human-perceptible indication, after detecting a shockable cardiac arrhythmia, and after further determining that it will not shock. This may succeed in informing the patient that the WCD system will not deliver a shock responsive to the cardiac arrhythmia, which may have just self-terminated. The information may give comfort to the patient who may be conscious, and may recognize that his or her ventricular tachycardia has self-terminated. Moreover, the patient will know that he or she will not be unnecessarily shocked while conscious, and will not even need to press a cancel switch.Type: GrantFiled: August 9, 2017Date of Patent: October 1, 2019Assignee: WEST AFFUM HOLDINGS CORP.Inventors: Phillip D. Foshee, Jr., David P. Finch, Laura M. Gustavson, Nikolai Korsun, Joseph L. Sullivan, Gregory T. Kavounas
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Patent number: 10426357Abstract: The invention provides a sensor for measuring both impedance and ECG waveforms that is configured to be worn around a patient's neck. The sensor features 1) an ECG system that includes an analog ECG circuit, in electrical contact with at least two ECG electrodes, that generates an analog ECG waveform; and 2) an impedance system that includes an analog impedance circuit, in electrical contact with at least two (and typically four) impedance electrodes, that generates an analog impedance waveform. Also included in the neck-worn system are a digital processing system featuring a microprocessor, and an analog-to-digital converter. During a measurement, the digital processing system receives and processes the analog ECG and impedance waveforms to measure physiological information from the patient. Finally, a cable that drapes around the patient's neck connects the ECG system, impedance system, and digital processing system.Type: GrantFiled: November 6, 2017Date of Patent: October 1, 2019Assignee: TOSENSE, INC.Inventors: Matthew Banet, Susan Meeks Pede, Marshal Singh Dhillon, Kenneth Robert Hunt
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Patent number: 10426696Abstract: An external defibrillator system includes one or more compression sensors; one or more physiological sensors; and at least one processor. The at least one processor is configured to: receive and process chest compression signals and physiological signals from the sensors, determine values for chest compression depth and/or chest compression rate based on the received chest compression signals, determine a trend of at least one physiological parameter over a period comprising multiple chest compressions based on the received physiological signals, adjust a target chest compression depth and/or target chest compression rate based on the determined trend of the at least one physiological parameter, compare the determined values for chest compression depth and/or chest compression rate to the adjusted target compression depth and/or the adjusted target compression rate, and provide feedback about the quality of chest compressions performed on the patient.Type: GrantFiled: January 16, 2017Date of Patent: October 1, 2019Assignee: ZOLL Medical CorporationInventors: Guy R. Johnson, Annemarie Silver, Gary A. Freeman
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Patent number: 10420702Abstract: Devices, systems, software and methods for CPR quality assessment. Patient data is received, derived from a session of administering sets of CPR chest compressions to a patient. The sets can be separated by pauses. In some embodiments, a penalty value can be determined for at least one of the pauses, from at least one control factor unrelated to a constant linear dependence on the pause duration. An indicative value can be derived from the penalty value. In some embodiments, at least some of the pauses are classified in one or more pause groups, depending on how well they meet one or more classification criteria. The indicative value can be derived for one of the pause groups. The indicative value can be output, and/or an alarm can be emitted if it exceeds a threshold. CPR quality assessment can be improved in real time, and provide feedback for training.Type: GrantFiled: February 18, 2014Date of Patent: September 24, 2019Assignee: PHYSIO-CONTROL, INC.Inventors: Robert G. Walker, Ronald E. Stickney, Fred W. Chapman
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Patent number: 10413741Abstract: Methods and apparatus for a three-stage ventricular cardioversion and defibrillation therapy that treats ventricular tachycardia and fibrillation at low energy levels. An implantable therapy generator adapted to generate and selectively deliver a three-stage ventricular therapy and at least two leads operably each having at least one electrode adapted to be positioned proximate the ventricle of the patient. The device is programmed to deliver a three-stage therapy via both a far-field configuration and a near-field configuration of the electrodes upon detection of a ventricular arrhythmia. The three-stage therapy includes a first stage for unpinning of one or more singularities associated with the ventricular arrhythmia, a second stage for anti-repinning of the one or more singularities, both of which are delivered via the far-field configuration of the electrodes, and a third stage for extinguishing of the one or more singularities associated delivered via the near-field configuration of the electrodes.Type: GrantFiled: September 19, 2018Date of Patent: September 17, 2019Assignee: The Washington UniversityInventors: Igor R. Efimov, Wenwen Li, Ajit H. Janardhan
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Patent number: 10406374Abstract: A defibrillator and method for using a defibrillator which adopts an ECG analysis algorithm that can detect a cardiac arrhythmia in the presence of noise artifact induced by cardio pulmonary resuscitation (CPR) compressions. The apparatus and method includes a confidence analyzer circuit which determines the confidence level of an electrotherapy shock decision based on the detection. If the confidence level is low, the apparatus adjusts its shock decision criteria.Type: GrantFiled: December 9, 2015Date of Patent: September 10, 2019Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Chenguang Liu, Stacy Earl Gehman, Dawn Blilie Jorgenson
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Patent number: 10405783Abstract: A concentration measurement apparatus includes a probe, having a light incidence section making measurement light incident on the head and a light detection section detecting the measurement light that has propagated through the interior of the head, and a CPU determining temporal relative change amounts of oxygenated hemoglobin concentration and deoxygenated hemoglobin concentration and determining a correlation coefficient of the relative change amounts and a polarity of a slope of a regression line.Type: GrantFiled: June 1, 2017Date of Patent: September 10, 2019Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Takeo Ozaki, Susumu Suzuki
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Patent number: 10390756Abstract: The circuit may include bio-stimulating signal generating circuit which generates a bio-stimulating signal in a bio-stimulating mode, a bio-signal electrode which delivers the bio-stimulating signal generated in the bio-stimulating mode and receives a bio-signal in a bio-signal measuring mode, a switch block which is turned on when a voltage of the bio-stimulating signal is greater than a first reference voltage which is greater than a second reference voltage or lower than the second reference voltage, first and second resistors, and a bio-signal measuring circuit which measures voltage signals divided by the first and second resistors or measures a signal of the bio-signal electrode according to whether the switch block is turned on. The first and second resistors may be serially connected between the bio-signal electrode and the switch block, and divide a voltage of a signal of the bio-signal electrode when the switch block is turned on.Type: GrantFiled: February 3, 2017Date of Patent: August 27, 2019Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: WooSub Youm, Sung Q Lee, Gunn Hwang
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Patent number: 10395850Abstract: An electric energy storage device has first and second conductor layers, a plastic sheet, a quantum dot, and positive and negative electrodes wherein the first and second conductor layers has surfaces coated with ionic or dipole material. The first conductor layer is stacked on top of the second conductor layer with a nanometer-scale interval and with the ionic material layer inbetween, forming a bilayer structure and a quantum heterostructure. Millions of bilayers are stacked together to form a multilayer structure. A positive electrode is attached to the first conductor layer and a negative electrode is attached to the last conductor layer, wherein the first and second conductor layers store electrical energy in the bilayer in a form of binding energy.Type: GrantFiled: September 20, 2017Date of Patent: August 27, 2019Inventor: Woo Yong Lie
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Patent number: 10376705Abstract: A method and medical device for detecting a cardiac event that includes sensing cardiac signals from a plurality of electrodes, the plurality of electrodes forming a first sensing vector and a second sensing vector, identifying the cardiac event as one of a shockable event and a non-shockable event in response to first processing of a first interval sensed along the first sensing vector during a predetermined sensing window and a second interval simultaneously sensed along the second sensing vector, performing second processing of the first interval and the second interval, different from the first processing, in response to the cardiac event being identified as a shockable event, and determining whether to delay identifying the cardiac event being shockable in response to the second processing of the first interval and the second interval.Type: GrantFiled: April 1, 2014Date of Patent: August 13, 2019Assignee: Medtronic, Inc.Inventors: Xusheng Zhang, Robert W Stadler
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Patent number: 10365720Abstract: A system generates a haptic effect that simulates a mechanical button. The system receives a signal that indicates that a user has contacted a user interface of the system. The system includes an impact actuator. In response to the signal, a moving element of the impact actuator contacts the user interface, which generates the haptic effect.Type: GrantFiled: August 7, 2017Date of Patent: July 30, 2019Assignee: IMMERSION CORPORATIONInventors: Juan Manuel Cruz-Hernandez, Danny A. Grant
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Patent number: 10363098Abstract: An ablation system including an image database storing a plurality of computed tomography (CT) images of a luminal network and a navigation system enabling, in combination with an endoscope and the CT images, navigation of a locatable guide and an extended working channel to a point of interest. The system further includes one or more fiducial markers, placed in proximity to the point of interest and a percutaneous microwave ablation device for applying energy to the point of interest.Type: GrantFiled: October 12, 2018Date of Patent: July 30, 2019Assignee: COVIDIEN LPInventors: Joseph D. Brannan, Casey M. Ladtkow, Darion R. Peterson, Eric W. Larson, William J. Dickhans, Richard A. Willyard, Jason A. Case