Combined Cardioverting/defibrillating And Pacing Patents (Class 607/4)
  • Patent number: 11375936
    Abstract: A wearable medical system configured to be worn by a person, comprising a support structure configured to be worn by the person, a monitoring device configured to monitor at least one physiological parameter of the person, wherein the at least one physiological parameter includes an electrocardiogram (ECG) reading of the person, an electrode coupled to the support structure, an energy storage device configured to store an electric charge for use in delivering a shock to the person through the electrode, and a biasing mechanism comprising at least one of an inflatable device, a hydraulic device, an electromagnetic device, and/or a screw gun device, the biasing mechanism configured to transition from the unbiased state to the biased state responsive to a value of the at least one physiological parameter reaching a threshold. The electrode is more movable with respect to the person's body in the unbiased state than the biased state.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: July 5, 2022
    Assignee: West Affum Holdings Corp.
    Inventors: Fred W. Chapman, Gregory T. Kavounas
  • Patent number: 11357441
    Abstract: Systems and methods for managing cardiac arrhythmias are discussed. A data management system receives a first detection algorithm including a detection criterion for detecting a cardiac arrhythmia. An arrhythmia detector detects arrhythmia episodes from a physiologic signal using a second detection algorithm that is different from and has a higher sensitivity for detecting the cardiac arrhythmia than the first detection algorithm. The arrhythmia detector assigns a detection indicator to each of the detected arrhythmia episodes. The detection indicator indicates a likelihood that the detected arrhythmia episode satisfies the detection criterion of the first detection algorithm. The system prioritizes the detected arrhythmia episodes according to the assigned detection indicators, and outputs the arrhythmia episodes to a user or a process according to the episode prioritization.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: June 14, 2022
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: David L. Perschbacher, Sunipa Saha, Deepa Mahajan
  • Patent number: 11357440
    Abstract: An apparatus comprises a magnetic field detection circuit, a cardiac signal sensing circuit, a memory circuit, a control circuit, and an arrhythmia detection circuit. The cardiac signal sensing circuit generates a cardiac signal representative of cardiac activity of a subject when coupled to sensing electrodes. The control circuit is operatively coupled to the magnetic field detection circuit; the cardiac signal sensing circuit, and the memory circuit. The control circuit stores cardiac signal data determined using the sensed cardiac signal, receives an indication of magnetic field detection by the magnetic field detection circuit, stores data obtained using the sensed cardiac signal during the magnetic field detection, and stores an identifier indicating the magnetic field detection in association with the data. The arrhythmia detection circuit processes the cardiac signal data to detect a cardiac arrhythmia event and confirm the cardiac arrhythmia event according to the magnetic field indication.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: June 14, 2022
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Binh C. Tran, Mitchell D. Lanz, Scott R. Vanderlinde
  • Patent number: 11331035
    Abstract: A medical device is configured to deliver an electrical stimulation pulse to a heart of a patient, determine a pre-stimulation cardiac event amplitude prior to delivering the electrical stimulation pulse and adjust a cardiac event sensing threshold according to a first post-stimulation decay sequence in response to the electrical stimulation pulse delivery. The first post-stimulation decay sequence is controlled by a sensing module of the medical device according to a first set of sensing control parameters including at least one sensing control parameter based on the pre-stimulation cardiac event amplitude.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: May 17, 2022
    Assignee: MEDTRONIC, INC.
    Inventors: Robert W. Stadler, Jian Cao
  • Patent number: 11311737
    Abstract: An implantable system for stimulating a heart contains a processor, a memory, a stimulator, and a first detection unit for detecting a cardiac rhythm disturbance of a cardiac region. The memory includes a computer-readable program, which prompts the processor to carry out the following steps: a) detecting via the first detection unit whether a cardiac rhythm disturbance is present in a cardiac region of a heart of a patient; b) when a cardiac rhythm disturbance is present, selecting a stimulation strategy based on a selection criterion; c) stimulating the cardiac region in which the cardiac rhythm disturbance was detected by way of the stimulator, using the selected stimulation strategy; d) detecting a success and/or an efficiency of the conducted stimulation; e) comparing the success and/or the efficiency to a predefinable success and/or efficiency criterion; and f) if the predefinable success and/or efficiency criterion was not achieved, optimizing the stimulation strategy.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: April 26, 2022
    Assignee: BIOTRONIK SE & Co. KG
    Inventors: Thomas Doerr, Sergey Ershov, Torsten Radtke, Martin Roemer, Ingo Weiss
  • Patent number: 11305125
    Abstract: An implantable medical device (IMD) that includes a housing, a first electrode secured relative to the housing, a second electrode secured relative to the housing, and a gyroscope secured relative to the housing. The IMD may include circuitry in the housing in communication with the first electrode, the second electrode, and the gyroscope. The circuitry may be configured to determine and store a plurality of torsion data measurements, from which a representation of a twist profile may be determined.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: April 19, 2022
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventors: Bin Mi, Pramodsingh Hirasingh Thakur, Jeffrey E. Stahmann, Keith R. Maile, Qi An, Brendan Early Koop, Yinghong Yu, Viktoria A. Averina, Michael J. Kane, Krzysztof Z. Siejko
  • Patent number: 11234601
    Abstract: An Integrated CardioRespiratory (ICR) System is provided for continuous Ejection Fraction (EF) measurement using a wearable device comprising a plurality of acoustic sensors. The ICR system performs signal processing computations to characterize cardiac acoustic signals that are generated by cardiac hemodynamic flow, cardiac valve, and tissue motion, and may use advanced machine learning methods to provide accurate computation of EF.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: February 1, 2022
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: William Kaiser, Nils Peter Borgstrom, Per Henrik Borgstrom, Aman Mahajan
  • Patent number: 11235143
    Abstract: A WCD system is configured to detect when a therapy administered to a patient by the WCD system is unsuccessful, and in response determine whether to send notifications to remote non-witness responders. The WCD system may be configured to decide to send such notifications after the WCD system determines it has administered a predetermined number of unsuccessful shocks to the patient. The predetermined number of unsuccessful shocks may be the maximum number of unsuccessful shocks the WCD system will administer to a patient, or every Xth shock (e.g., 3rd shock). The WCD system can be configured to periodically resend the notification. The notifications may be in form of SMS, voice messages, emails, app notifications, etc. sent to cell phones, smartphones, computers, laptops, tablets etc. of the responders either directly, via a server, or via a CAD-coupled server.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: February 1, 2022
    Assignee: WEST AFFUM HOLDINGS CORP.
    Inventors: Douglas K. Medema, Steven E. Sjoquist
  • Patent number: 11224751
    Abstract: Systems and methods for treating arrhythmias are disclosed. In one embodiment an LCP comprises a housing, a plurality of electrodes for sensing electrical signals emanating from outside of the housing, an energy storage module disposed within the housing, and a control module disposed within the housing and operatively coupled to the plurality of electrodes. The control module may be configured to receive electrical signals via two or more of the plurality of electrodes and determine if the received electrical signals are indicative of a command for the LCP to deliver ATP therapy. If the received electrical signals are indicative of a command for the LCP to deliver ATP therapy, the control module may additionally determine whether a triggered ATP therapy mode of the LCP is enabled. If the triggered ATP therapy mode is enabled, the control module may cause the LCP to deliver ATP therapy via the plurality of electrodes.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: January 18, 2022
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventors: Paul Huelskamp, Jacob M. Ludwig, Lance E. Juffer, Keith R. Maile
  • Patent number: 11213684
    Abstract: A device is configured to transmit tissue conductance communication (TCC) signals by generating multiple TCC signals by a TCC transmitter of the IMD. The generated TCC signals are coupled to a transmitting electrode vector via a coupling capacitor to transmit the plurality of TCC signals to a receiving medical device via a conductive tissue pathway. A voltage holding circuit holds the coupling capacitor at a DC voltage for a time interval between two consecutively transmitted TCC signals.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: January 4, 2022
    Assignee: Medtronic, Inc.
    Inventors: David J. Peichel, James D. Reinke, Jonathan P. Roberts, Michael B. Terry
  • Patent number: 11213682
    Abstract: Methods and apparatuses for setting a therapeutic dose of a neuromodulator implanted into a patient are described. The therapeutic dose typically includes a therapeutic dose duration including a ramp-up time to reach a peak modulation voltage and a sustained peak modulation time during which the voltage is sustained at the peak modulation voltage. The methods and apparatuses described herein may use a testing ramp to identify a peak modulation voltage that is patient-specific and provides a maximized therapeutic effect while remaining comfortably tolerable by the patient during the application of energy by the neuromodulator.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: January 4, 2022
    Assignee: Neuros Medical, Inc.
    Inventors: Nemath Syed Shah, Zi-Ping Fang
  • Patent number: 11169010
    Abstract: An implant includes a processor, RF communication circuitry, optical communication circuitry, a power source and a memory, all of which being hermetically sealed within a housing having a transparent window. Sensor readings are transmitted by RF using the RF communication circuitry to a remote reader after receiving interrogation signals from the reader. During calibration of the sensor, corrective coefficients are calculated by comparing actual sensor pressure readings with known pressure readings. The corrective coefficients are transmitted to the memory of the control circuitry using optical communication wherein modulated light is transmitted through the transparent window of the housing to the photo-detector.
    Type: Grant
    Filed: July 27, 2009
    Date of Patent: November 9, 2021
    Assignee: INTEGRA LIFESCIENCES SWITZERLAND SÀRL
    Inventors: Rocco Crivelli, Danillo Roth, Alec Ginggen
  • Patent number: 11139899
    Abstract: Aspects of the subject disclosure may include, for example, receiving, by a receiver through a medium from a transmitter, signals over an acoustic channel, where the receiving over the acoustic channel utilizes a high center frequency and provides for a high data rate, and where the medium is a fluid or a semi-solid medium. The device can receive power from the transmitter over the acoustic channel. Other embodiments are disclosed.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: October 5, 2021
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Michael L. Oelze, Thomas Riedl, Andrew Singer
  • Patent number: 11135433
    Abstract: Approaches to rank potential left ventricular (LV) pacing vectors are described. Early elimination tests are performed to determine the viability of LV cathode electrodes. Some LV cathodes are eliminated from further testing based on the early elimination tests. LV cathodes identified as viable cathodes are tested further. Viable LV cathode electrodes are tested for hemodynamic efficacy. Cardiac capture and phrenic nerve activation thresholds are then measured for potential LV pacing vectors comprising a viable LV cathode electrode and an anode electrode. The potential LV pacing vectors are ranked based on one or more of the hemodynamic efficacy of the LV cathodes, the cardiac capture thresholds, and the phrenic nerve activation thresholds.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: October 5, 2021
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Krzysztof Z. Siejko, Shibaji Shome, Jiang Ding
  • Patent number: 11122985
    Abstract: A stimulating section applies stimulation to a living body. A first lead electrode and a second lead electrode are attached on the living body. A first amplifier circuit amplifies potential difference that is evoked between the first lead electrode and the second lead electrode due to the stimulation. A first switch cancels electrical connection between the first amplifier circuit and each of the first lead electrode and the second lead electrode at least while the stimulation is applied. A high-pass filter includes a capacitor (C) and filters a frequency component of an output from the first amplifier circuit that is no less than a predetermined value. A second amplifier circuit amplifies the output from the first amplifier circuit. A second switch stops charging/discharging of the capacitor (C) and decreases a gain of the second amplifier circuit at least while the first switch cancels the electrical connection.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: September 21, 2021
    Assignee: NIHON KOHDEN CORPORATION
    Inventors: Makoto Sato, Toshiki Maeda
  • Patent number: 11123570
    Abstract: A leadless pacing device may include a housing having a proximal end and a distal end, and a set of one or more electrodes supported by the housing. The housing may include a first a distal extension extending distally from the distal end thereof. The distal extension may include a retractable and/or rotatable distal electrode. The distal electrode may be configured to be delivered to and pace at the Bundle of His. The leadless pacing device may be releasably coupled to an expandable anchor mechanism.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: September 21, 2021
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventors: Brendan Early Koop, Benjamin J. Haasl, Allan Charles Shuros, James O. Gilkerson, Lili Liu, Keith R. Maile, Brian Soltis, Brandon Christopher Fellows
  • Patent number: 11083886
    Abstract: A wearable defibrillator includes a plurality of ECG electrodes configured to be removably attached to a patient and sense ECG information of the patient, and at least one therapy pad configured to deliver electrical therapy to the patient. The wearable defibrillator includes at least one audio device including a microphone configured to receive an audio input and an audio output device configured to provide an audio output. At least one processor of the wearable defibrillator is operatively connected to the plurality of ECG electrodes, the at least one therapy pad, a memory, and the at least one audio device. The at least one processor is configured to in a set up phase, receive by the microphone and store in the memory, the audio input comprising a voice recording, and cause the audio output device to provide the audio output by to playing back the voice recording to the patient.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: August 10, 2021
    Assignee: ZOLL Medical Corporation
    Inventors: John D Macho, Shane S Volpe, Richard A Rattanni, Philip C Skalos, Thomas E Kaib, Marshal W Linder
  • Patent number: 11065464
    Abstract: A wearable system includes a support structure with optionally one or more electrodes in an unbiased state. Different sensor modules may monitor, for the long-term, different patient parameters such as the patient's motion, a physiological parameter, a patient sound etc., other than the patient's ECG. The sensor modules can be worn by the patient concurrently, or only one at a time as convenient, and may provide respective sensor signals. The system may determine from one or more of the available received signals whether a certain threshold has been reached, such as when the patient is having an actionable episode. If so, at least one electrode may become mechanically biased against the patient's body, for making good electrical contact. Then, an ECG reading may be taken and/or therapy may be administered.
    Type: Grant
    Filed: June 9, 2018
    Date of Patent: July 20, 2021
    Assignee: West Affum Holdings Corp.
    Inventor: Gregory T. Kavounas
  • Patent number: 11058885
    Abstract: A wearable cardioverter defibrillator (WCD) system according to embodiments is configured to be worn by an ambulatory patient, and to sense ECG signals of the patient. The WCD system includes a processor that extracts heart rate values from the ECG signals. If a heart rate value exceeds a decision threshold then, for subsequent heart rate values, the decision threshold may be lowered for administering a certain shock to the patient. In some embodiments the lowering is due to a cancel input being received, an intermediate shock having been administered, and so on. In some embodiments the decision threshold is lowered only temporarily. This may help with detecting a tachycardic event, and in particular with preventing the inhibiting of detecting such an event, as the patient's heart rate during such events may decrease while the heart's condition is deteriorating.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: July 13, 2021
    Assignee: West Affum Holdings Corp.
    Inventor: Jaeho Kim
  • Patent number: 11033744
    Abstract: Brugada syndrome and related forms of ion channelopathies, including ventricular asynchrony of contraction, originate in the region near the His bundle or para-Hisian regions of the heart. Manifestations of Brugada syndrome can be corrected by delivering endocardial electrical stimulation coincident to the activation wave front propagated from the atrioventricular (AV) node. By performing the start of the activation of the HIS bundle or para-Hisian region early enough, electrical stimulation can be delivered fast enough to compensate for the conduction problems that start in those region, such that the activation wave front, as stimulated, transitions from the AV node to the His bundle in a normal, albeit electrically-supplemented, fashion. This stimulation not only helps resolve the conditions that trigger Brugada syndrome, but also resolves the asynchrony of the contraction of the heart.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: June 15, 2021
    Assignee: NEWSTIM, INC.
    Inventors: Daniel Felipe Ortega, Luis Dante Barja
  • Patent number: 11027137
    Abstract: The present disclosure pertains to cardiac pacing methods and systems, and, more particularly, to cardiac resynchronization therapy (CRT). In particular, the present disclosure pertains to determining whether a patient is experiencing atrial fibrillation (AF). If the patient is experiencing AF, the efficacy of CRT is determined. A signal is sensed in response to a ventricular pacing stimulus. Through signal processing, a number of features are parsed from the signal and a determination is made as to whether the ventricular pacing stimulus evoked a response from the ventricle.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: June 8, 2021
    Assignee: Medtronic, Inc.
    Inventors: Richard M. T. Lu, Subham Ghosh, Robert W. Stadler
  • Patent number: 11020595
    Abstract: Systems and methods for treating cardiac arrhythmias are disclosed. In one embodiment, an SICD comprises two or more electrodes, a charge storage device, and a controller operatively coupled to two or more of the electrodes and the charge storage device. In some embodiments, the controller is configured to monitor cardiac activity of the heart of the patient, detect an occurrence of a cardiac arrhythmia based on the cardiac activity, and determine a type of the detected cardiac arrhythmia from two or more types of cardiac arrhythmias. If the determined type of cardiac arrhythmia is one of a first set of cardiac arrhythmia types, the controller sends an instruction for reception by an LCP to initiate the application of ATP therapy by the LCP. If the determined type of cardiac arrhythmia is not one of the first set cardiac arrhythmia types, the controller does not send the instruction.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: June 1, 2021
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventor: Brendan E. Koop
  • Patent number: 11013409
    Abstract: A wearable medical device includes an electrode assembly having a plurality of ECG sensing electrodes configured to monitor a cardiac condition of a patient using the device, a call button to initiate a call with a remote location and a transceiver configured to communicate information to and from the wearable medical device. The device includes a memory and a controller having at least one processor configured to execute instructions stored in the memory. The instructions include receiving, via actuation of the call button, a request to initiate a communication link with the remote location, providing, via a user interface, a confirmatory prompt that the patient indicate confirmation to proceed with the request to initiate the communication link with the remote location, and initiating, via the transceiver, the communication link to the remote location responsive to the indication of the confirmation to proceed with the request to initiate the communication link.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: May 25, 2021
    Assignee: ZOLL Medical Corporation
    Inventors: Thomas E. Kaib, Shane Volpe, Marshal Linder, Patrick Hresko
  • Patent number: 10946202
    Abstract: Methods and devices for testing and configuring implantable medical device systems. A first medical device and a second medical device communicate with one another using test signals configured to provide data related to the quality of the communication signal to facilitate optimization of the communication approach. Some methods may be performed during surgery to implant one of the medical devices to ensure adequate communication availability.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: March 16, 2021
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventors: Keith R. Maile, Brendan E. Koop, Brian L. Schmidt, Michael J. Kane, Jacob M. Ludwig, Jeffrey E. Stahmann, Lance E. Juffer
  • Patent number: 10939843
    Abstract: A method and medical device for determining a cardiac episode that includes sensing a cardiac signal, identifying the signal sensed during a predetermined time interval as one of a cardiac event, a non-cardiac event, and an unclassified event, determining a number of identified cardiac events, determining a number of identified unclassified events, and determining whether the cardiac episode is occurring in response to the number of identified cardiac events being greater than a cardiac event count threshold and the number of identified unclassified events being less than an unclassified event count threshold.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: March 9, 2021
    Assignee: Medtronic, Inc.
    Inventors: Jian Cao, Elise Higgins
  • Patent number: 10905884
    Abstract: Devices and methods of use for treating atrial arrhythmias. A single-pass lead includes a body portion having at least two electrodes configured to be positioned within or adjacent a right atrium of a heart of a patient, and a distal portion having at least two electrodes configured to be positioned within a blood vessel proximate the left atrium. The lead is configured to operated by an implantable therapy generator programmed to deliver a multi-stage therapy by activating various combinations of at least one electrode of the body portion of the lead and at least one electrode of the distal portion of the lead.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: February 2, 2021
    Assignee: Cardialen, Inc.
    Inventor: Michael Brent Shelton
  • Patent number: 10898095
    Abstract: A non-invasive medical device includes a garment; at least one therapy electrode and a plurality of ECG sensing electrodes disposed in the garment; a memory storing ECG information of the patient; a therapy delivery interface; and at least one processor configured to identify, within the ECG information, at least one cardiac arrhythmia condition; determine at least one pacing routine corresponding to the detected cardiac arrhythmia condition; cause the therapy delivery interface to execute the at least one pacing routine by delivering a first pacing pulse; determine, subsequent to the first pacing pulse, that a first interval has passed without detection of an intrinsic heartbeat, and in response, cause the therapy delivery interface to continue executing the at least one pacing routine by delivering a second pacing pulse; and responsive to determining that the intrinsic heartbeat is detected within the first interval, suspend execution of the at least one pacing routine.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: January 26, 2021
    Assignee: ZOLL MEDICAL CORPORATION
    Inventors: Jason T. Whiting, Thomas E. Kaib, Rachel H. Carlson, Gregory R. Frank
  • Patent number: 10856762
    Abstract: An atrial fibrillation detecting device includes a processor and a memory that stores a computer-readable command. When the computer-readable command is executed by the processor, the atrial fibrillation detecting device is configured to acquire pulse data representing a plurality of pulses, calculate a pulse rate based on the pulse data, calculate respective pulse amplitude indices of the plurality of pluses based on the pulse data, calculate an amplitude dispersion of the pulse amplitude indices based on the calculated pulse amplitude indices, calculate respective pulse interval indices of the plurality of pluses based on the pulse data, calculate an interval dispersion of the pulse interval indices based on the calculated pulse interval indices, and determine whether the pulse data is atrial fibrillation, based on the calculated pulse rate, the calculated amplitude dispersion, and the calculated interval dispersion.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: December 8, 2020
    Assignee: NIHON KOHDEN CORPORATION
    Inventor: Takashi Kaiami
  • Patent number: 10850093
    Abstract: A system for lead integrity monitoring includes an implantable medical device (IMD) having a housing enclosing a control circuit; and a lead, having a first sensor. The lead is coupled to the housing and electrically coupled to the control circuit. The system also includes at least one processing device configured to identify a first lead failure alert based on a first set of information; obtain a second set of information generated by a second sensor; perform an evaluation of the first set of information in the context of the second set of information; and confirm or cancel the first lead failure alert based on the evaluation.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: December 1, 2020
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Pramodsingh H. Thakur, Deepa Mahajan, Qi An, Keith R. Maile, David J. Ternes, Zhe Shen
  • Patent number: 10849560
    Abstract: There is provided a physiological detection system including a physiological detection device and a host. The physiological detection device is configured to transmit a physiological data series to the host according to a local oscillation frequency. The host is configured to calculate a physiological value according to the physiological data series and determine a correction parameter according to a receiving data parameter and a reference data parameter, wherein the correction parameter is configured to correct the physiological value, process the physiological data series or adjust the local oscillation frequency of the physiological detection device.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: December 1, 2020
    Assignee: PIXART IMAGING INC.
    Inventors: Ren-Hau Gu, Chih-Hsin Lin, Yung-Chang Lin, Chien-Lung Liao
  • Patent number: 10846893
    Abstract: A system for facilitating identification and marking of a target in a fluoroscopic image of a body region of a patient, the system comprising one or more storage devices having stored thereon instructions for: receiving a CT scan and a fluoroscopic 3D reconstruction of the body region of the patient, wherein the CT scan includes a marking of the target; and generating at least one virtual fluoroscopy image based on the CT scan of the patient, wherein the virtual fluoroscopy image includes the target and the marking of the target, at least one hardware processor configured to execute these instructions, and a display configured to display to a user the virtual fluoroscopy image and the fluoroscopic 3D reconstruction.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: November 24, 2020
    Assignee: COVIDIEN LP
    Inventors: Oren P. Weingarten, Ron Barak, Evgeni Kopel, Benjamin Greenburg, Efrat Kedmi-Shahar, Dafna Mardix, Ariel Birenbaum, Guy Alexandroni, Eyal Klein
  • Patent number: 10842999
    Abstract: A method and system for delivering a cardiac pacing therapy that includes a cardiac signal being sensed via electrodes of an atrial lead, and an occurrence of one of an intrinsic and a paced atrial depolarization event of a current cardiac cycle being determined in response to the sensed cardiac signal. A first pacing therapy is delivered during the current cardiac cycle in response to the determined occurrence of the depolarization event, and an amplitude of the cardiac signal within the current cardiac cycle subsequent to the delivered first pacing therapy is compared to a predetermined amplitude threshold. A second pacing therapy is delivered, via a left ventricular lead, within the same cardiac cycle and subsequent to the delivered first pacing therapy in response to the amplitude not being more negative than the predetermined amplitude threshold and is not delivered in response to the amplitude being more negative than the predetermined amplitude threshold.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: November 24, 2020
    Assignee: Medtronic, Inc.
    Inventor: Subham Ghosh
  • Patent number: 10821288
    Abstract: Implantable medical devices (IMD) such as a cardiac pacemakers may include a sensor and electrodes. In some cases, the IMD may include electronics to use the sensor to determine the heart rate of a patient's heart. The electronics may use the electrodes to deliver pacing pulses to the heart at a first energy level if the heart rate is below a threshold and pace the heart at an enhanced energy level if the heart rate is above the threshold.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: November 3, 2020
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventors: G. Shantanu Reddy, Brian L. Schmidt
  • Patent number: 10814138
    Abstract: This disclosure relates to active implantable medical devices. Some such devices include a pulse generator and at least one detection electrode. A processor of the pulse generator is configured to collect via the detection electrode at least two EGM signals, combine the EGM signals into two time components, and combine the components into a single 2D parametric characteristic representing the cardiac cycle. During a tachyarrhythmia episode, the device stores the consecutive values of the cycle-to-cycle variation in the amplitude of one EGM signal, distributes same into a plurality of classes each corresponding to an amplitude interval, and performs a statistical analysis of the totals for each class so as to output, selectively, on the basis of at least one predetermined criterion applied to the distribution of the amplitude variations into the various classes, an indicator of a suspected extracardiac artifact or an indicator of tachyarrhythmia.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: October 27, 2020
    Assignee: Sorin CRM SAS
    Inventors: Marie-Anne Euzen, Paola Milpied
  • Patent number: 10799710
    Abstract: An implantable medical device system is configured to sense cardiac events in response to a cardiac electrical signal crossing a cardiac event sensing threshold. A control circuit is configured to determine a drop time interval based on a heart rate and control a sensing circuit to hold the cardiac event sensing threshold at a threshold value during the drop time interval.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: October 13, 2020
    Assignee: Medtronic, Inc.
    Inventors: Jian Cao, Gerald P. Arne, Timothy A. Ebeling, Yanina Grinberg, Michael W. Heinks, Paul R. Solheim, Xusheng Zhang
  • Patent number: 10744260
    Abstract: Techniques for modeling therapy fields for therapy delivered by medical devices are described. Each therapy field model is based on a set of therapy parameters and represents where therapy will propagate from the therapy system delivering therapy according to the set of therapy parameters. Therapy field models may be useful in guiding the modification of therapy parameters. As one example, a processor compares an algorithmic model of a therapy field to a reference therapy field and adjusts at least one therapy parameter based on the comparison. As another example, a processor adjusts at least one therapy parameter to increase an operating efficiency of the therapy system while substantially maintaining the modeled therapy field.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: August 18, 2020
    Assignee: Medtronic, Inc.
    Inventors: Martin T. Gerber, John C. Rondoni
  • Patent number: 10737090
    Abstract: An external defibrillator system may include processing circuitry; signal generation circuitry communicatively coupled to the processing circuitry; and a plurality of electrodes, each including an electrode body electrically coupled to the signal generation circuitry and configured to deliver an electrical pulse therapy to a patient; and an electrolyte dispersal pad that includes a substrate defining a plurality of wells, each defining an opening; an electrolyte material, e.g., fluid, disposed within at least a portion of the plurality of wells; and a conductive material disposed over at least a portion of the openings and configured to retain the electrolyte material within the plurality of wells, where the processing circuitry is configured control the signal generation circuitry to pass a current pulse through a portion of the conductive material to fuse the portion of the conductive material to release the electrolyte material from at least one of the wells.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: August 11, 2020
    Assignee: Medtronic, Inc.
    Inventors: Randolph E. Crutchfield, Gerard A. Bast, David A. Cano, Lisa Anne Harness Mesias, Clark B. Norgaard, Mark E. Porter, Jerome Sims, II, Philip Timson
  • Patent number: 10699448
    Abstract: A system for facilitating identification and marking of a target in a fluoroscopic image of a body region of a patient, the system comprising one or more storage devices having stored thereon instructions for: receiving a CT scan and a fluoroscopic 3D reconstruction of the body region of the patient, wherein the CT scan includes a marking of the target; and generating at least one virtual fluoroscopy image based on the CT scan of the patient, wherein the virtual fluoroscopy image includes the target and the marking of the target, at least one hardware processor configured to execute these instructions, and a display configured to display to a user the virtual fluoroscopy image and the fluoroscopic 3D reconstruction.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: June 30, 2020
    Assignee: COVIDIEN LP
    Inventors: Oren P. Weingarten, Ron Barak, Evgeni Kopel, Benjamin Greenburg, Efrat Kedmi-Shahar, Dafna Mardix, Ariel Birenbaum, Guy Alexandroni, Eyal Klein
  • Patent number: 10687716
    Abstract: A method includes, in a living organ (28) in which an ambient pressure varies as a function of time, sensing the ambient pressure using a pressure sensor (36, 90, 174), which has a capacitance that varies in response to the ambient pressure, so as to produce a time-varying waveform. A calibration voltage, which modifies the capacitance and thus the time-varying waveform, is applied to the pressure sensor. The time-varying waveform is processed so as to isolate and measure a contribution of the calibration voltage to the waveform. A dependence of the capacitance on the ambient pressure is calibrated using the measured contribution of the calibration voltage.
    Type: Grant
    Filed: November 10, 2013
    Date of Patent: June 23, 2020
    Assignee: VECTORIOUS MEDICAL TECHNOLOGIES LTD.
    Inventors: Oren Goldshtein, Shmuel Livne
  • Patent number: 10675478
    Abstract: This disclosure describes an implantable medical electrical lead and an ICD system utilizing the lead. The lead includes a lead body defining a proximal end and a distal portion, wherein at least a part of the distal portion of the lead body defines an undulating configuration. The lead includes a defibrillation electrode that includes a plurality of defibrillation electrode segments disposed along the undulating configuration spaced apart from one another by a distance. The lead also includes at least one electrode disposed between adjacent sections of the plurality of defibrillation sections. The at least one electrode is configured to deliver a pacing pulse to the heart and/or sense cardiac electrical activity of the heart.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: June 9, 2020
    Assignee: Medtronic, Inc.
    Inventors: Mark T. Marshall, Gonzalo Martinez, Vladimir P. Nikolski, Nathan L. Olson, Kevin R. Seifert, Teresa A. Whitman
  • Patent number: 10668296
    Abstract: A handheld defibrillation device is disclosed, operated by a single battery cell, and configured to deliver a defibrillation pulse to a subject via defibrillation pads. The defibrillator comprises an energy storage unit comprising a plurality of capacitive elements, a plurality of charger units, each charger unit being electrically connected to the battery cell for electrically charging a respective one of the capacitive elements, and a pulse delivery unit configured and arranged to discharge the electrical charges of the capacitive elements through the defibrillation pads. The charging units and the pulse delivery unit, and various other parts of the defibrillator are specially designed to permit compactly packaging the defibrillator inside a handheld pocketsize housing.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: June 2, 2020
    Assignee: CARDIFAB LTD.
    Inventor: Marian Meir
  • Patent number: 10661073
    Abstract: Implantable medical electrical leads having electrodes arranged such that a defibrillation coil electrode and a pace/sense electrode(s) are concurrently positioned substantially over the ventricle when implanted as described. The leads include an elongated lead body having a distal portion and a proximal end, a connector at the proximal end of the lead body, a defibrillation electrode located along the distal portion of the lead body, wherein the defibrillation electrode includes a first electrode segment and a second electrode segment proximal to the first electrode segment by a distance. The leads may include at least one pace/sense electrode, which in some instances, is located between the first defibrillation electrode segment and the second defibrillation electrode segment.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: May 26, 2020
    Assignee: Medtronic, Inc.
    Inventors: Mark T. Marshall, Jian Cao, Melissa G. T. Christie, Paul J. Degroot, Vladimir P. Nikolski, Amy E. Thompson-Nauman
  • Patent number: 10646131
    Abstract: An apparatus includes a cardiac signal sensing circuit configured to generate a sensed cardiac signal representative of electrical cardiac activity of a subject, a buffer memory and a pause detection circuit. The pause detection circuit is configured to: identify ventricular depolarization in the cardiac signal or the sampled cardiac signal; detect a candidate pause episode using the cardiac signal in which delay in ventricular depolarization exceeds a specified delay threshold; identify noise events in a stored cardiac signal; and discard the cardiac signal of the candidate pause episode when a number of noise events satisfies a specified noise event number threshold, otherwise store the cardiac signal of the candidate pause episode as a bradycardia pause episode.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: May 12, 2020
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Krzysztof Z. Siejko, Derek D. Bohn, David L. Perschbacher, Adam MacEwen, Sunipa Saha, Keith L. Herrmann
  • Patent number: 10632320
    Abstract: A defibrillation system for the administration of a dual sequential defibrillation and/or simultaneous defibrillation therapy. A first defibrillation device is inductively coupled to a second defibrillation device. An energy delivery of the first defibrillation device generating, or causing to be generated, an artifact that is received by the second defibrillation device. The artifact causing a sync mode, or sync mode circuitry, of the second defibrillation device to administer a second energy delivery. The second energy delivery can be delayed relative to the energy delivery by the first defibrillation device.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: April 28, 2020
    Assignee: PHYSIO-CONTROL, INC.
    Inventors: Gary DeBardi, Fred W. Chapman, Tyson G. Taylor, Ronald E. Stickney
  • Patent number: 10617876
    Abstract: An implantable medical device comprising a housing having an outer surface; and protrusions disposed on the outer surface, where the plurality of protrusions are configured to reduce at least one of rotational, translational, and lateral movement of the implantable medical device within a patient's tissue after implantation in the patient.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: April 14, 2020
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Jean M. Bobgan, David P. Stieper
  • Patent number: 10602945
    Abstract: A physiological signal monitoring system includes a single set of sensing electrodes to provide conditioned physiological signals to a primary monitoring device and a secondary monitoring device. The monitoring system includes pre-processing circuitry configured to receive a raw physiological signal. The pre-processing circuitry is configured to produce a primary physiological signal and a secondary physiological signal. Each of the primary and secondary physiological signals are conditioned. The primary conditioned physiological signal is directed to a primary monitoring device such as a hospital wearable defibrillator device. The secondary conditioned physiological signal is directed to telemetry modeling circuitry where it is further processed to output one or more telemetry signals. The one or more telemetry signals are output to a secondary monitoring device such as a three lead ECG monitoring device.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: March 31, 2020
    Assignee: ZOLL Medical Corporation
    Inventors: Shane Volpe, Gary A. Freeman
  • Patent number: 10575776
    Abstract: The invention includes a system and method for predicting the performance of production animals by analysis of heart and lung sounds to determine likelihoods the animals will develop BRD or other diseases or ailments. Vital signs of animals are recorded during an adrenergic sympathetic “flight or fight” situation. A cardio-pulmonary rate ratio is determined for each animal by dividing a normalized adjusted heart rate value by a normalized adjusted respiratory value. From the ratios calculated for each animal in a group, a ratio range is established. Ratio values at a lower end of the ratio range indicate higher relative respiration rates and poor lung performance due to disease. Ratio values at an upper end of the range may indicate low cardiac output and an inability to tolerate rapid weight gain. Ratio values at either end of the range may indicate compromised cardio-pulmonary function.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: March 3, 2020
    Assignee: INTERVET INC.
    Inventor: Kurt Brattain
  • Patent number: 10556118
    Abstract: An extra-cardiovascular implantable cardioverter defibrillator (ICD) having a low voltage therapy module and a high voltage therapy module is configured to select, by a control module of the ICD, a pacing output configuration from at least a low-voltage pacing output configuration of the low voltage therapy module and a high-voltage pacing output configuration of the high voltage therapy module. The high voltage therapy module includes a high voltage capacitor having a first capacitance and the low voltage therapy module includes a plurality of low voltage capacitors each having up to a second capacitance that is less than the first capacitance. The ICD control module controls a respective one of the low voltage therapy module or the high voltage therapy module to deliver extra-cardiovascular pacing pulses in the selected pacing output configuration via extra-cardiovascular electrodes coupled to the ICD.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: February 11, 2020
    Assignee: Medtronic, Inc.
    Inventors: David A. Anderson, Mark T. Marshall, Vladimir P. Nikolski, Robert T. Sawchuk, Amy E. Thompson-Nauman, John D. Wahlstrand, Gregory A. Younker
  • Patent number: 10548498
    Abstract: An implantable device for analyzing a high frequency (HF) electrogram signal received from subcutaneous, above-rib pickup locations, the device including an implantable electrode for use inside a living body, and a can for subcutaneous implantation, the can including a signal pickup configured to pick up an electrogram signal including a high frequency (HF) component, a signal filter connected to the signal pickup and configured to measure a high frequency (HF) component from the electrogram signal, and an analyzer for analyzing the HF component of the electrogram signal, wherein the analyzer is configured to analyze at least one time-varying parameter of the HF component of the electrogram signal, and the signal filter is configured to measure the electrogram signal by using a signal picked up from at least two pickup locations which are both subcutaneous and above-rib. Related apparatus and methods are also described.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: February 4, 2020
    Assignee: BSP Biological Signal Processing Ltd.
    Inventors: Tamir Ben-David, Yair Granot, Amir Beker
  • Patent number: 10542939
    Abstract: Embodiments of the present disclosure describe a method of monitoring a patient comprising generating an accelerometer signal of a patient via a patient medical device and capturing and sampling the accelerometer signal at a sampling rate that utilizes non-regular timing intervals. Embodiments further describe a patient medical device comprising sensors for monitoring an accelerometer signal of a patient and circuitry for sampling the accelerometer signal at a sampling rate that utilizes non-regular timing intervals. Embodiments also describe a method of processing physiological signals comprising monitoring ECG signals and accelerometer signals of a patient via a patient medical device and capturing an ECG segment and sampling the accelerometer signal at a sampling rate that utilizes non-regular timing intervals.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: January 28, 2020
    Assignee: Medtronic Monitoring, Inc.
    Inventors: Rodolphe Katra, Matthew Edelman, Scott Williams, Niranjan Chakravarthy, Arthur Lai