Patents Examined by Kennedy Schaetzle
  • Patent number: 11911168
    Abstract: Systems and methods are described herein for determining whether cardiac conduction system pacing therapy may be beneficial and/or determining how proximal or distal a cardiac conduction system block may be using external cardiac signals. To do so, one or more left-sided metrics of electrical heterogeneity information may be generated based on left-sided surrogate cardiac electrical measured using a plurality of left external electrodes.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: February 27, 2024
    Assignee: Medtronic, Inc.
    Inventor: Subham Ghosh
  • Patent number: 11911095
    Abstract: A method for generating a propagation and velocity maps for cardiac wavefront propagation including cardiac arrhythmia, sinus rhythm, and paced rhythm. Activation time information is generated in the absence of any time alignment reference, wherein an estimated activation time is a weighted summation of potentially nonlinear and nonorthogonal candidate functions (CFs) selected from a bank of CFs. Time alignments between sequential recordings may be done by including binary level functions among selected CFs. Embodiments are applicable to single catheter mapping and sequential mapping, and are robust as confirmed by the ability to generate propagation maps and conduction velocity in the presence of multiple colliding wavefronts. The propagation and conduction velocity maps may be used for one or more of diagnosing cardiac arrhythmia, localizing cardiac arrhythmia, guiding catheter ablation therapy of cardiac arrhythmia, and guiding cardiac pacing therapy.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: February 27, 2024
    Assignees: Queen's University at Kingston, Kingston Health Sciences Centre
    Inventors: Mohammad Hassan Shariat, Damian P. Redfearn
  • Patent number: 11883178
    Abstract: A computer implemented method for detecting arrhythmias in cardiac activity including obtaining far field cardiac activity (CA) signals for a series of beats. For at least a portion of the beats, the one or more processors perform, on a beat by beat basis: a) identifying first and second feature of interests (FOI) from a segment of the CA signal that corresponds to a current beat; and b) classifying the current beat into one of first and second groups. The method also includes designating one of the first and second groups to be a primary group based on a relation between the first and second groups, and for the beats in the primary group, selecting one of the first and second FOIs as the R-wave FOI. The method also includes rejecting an arrhythmia detection based on the P-waves detected.
    Type: Grant
    Filed: February 18, 2022
    Date of Patent: January 30, 2024
    Assignee: Pacesetter, Inc.
    Inventors: Fujian Qu, Nima Badie, Jong Gill
  • Patent number: 11883659
    Abstract: A means for treating breathing disorders by stimulating respiratory muscles or nerves to entrain respiratory systems while leaving respiratory drive intact. Embodiments of the invention employ frequency analysis to determine if appropriate stimulation energy is being applied.
    Type: Grant
    Filed: June 17, 2021
    Date of Patent: January 30, 2024
    Inventors: Mark Gelfand, Kristofer J. James, Randy W. Westlund, Antonios Panteleon, Todd P. Goblish, Mark C. Lynn
  • Patent number: 11872401
    Abstract: A stimulation device includes an adaptor component. The adaptor component couples a percutaneous lead to the stimulation device. The stimulation device may apply a stimulation signal to target tissue via the adaptor. A surgeon may place the stimulation device in a container and the adaptor component may be disposed outside of the container. Methods describe prolonged stimulation of target tissue via a stimulation device. The prolonged stimulation may be applied during and after a surgical procedure.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: January 16, 2024
    Inventors: Kevin Scanlan, Eric R. Walker, Leonard M. Cosentino
  • Patent number: 11872399
    Abstract: Restless Leg Syndrome (RLS) or Periodic Limb Movement Disorder (PLMD) can be treated using high frequency (HF) electrostimulation. This can include selecting or receiving a subject presenting with RLS or PLMD. At least one electrostimulation electrode can be located at a location associated with at least one of, or at least one branch of, a sural nerve, a peroneal nerve, or a femoral nerve. HF electrostimulation can be delivered to the subject, which can include delivering subsensory, subthreshold, AC electrostimulation at a frequency that exceeds 500 Hz and is less than 15,000 Hz to the location to help reduce or alleviate the one or more symptoms associated with RLS or PLMD. A charge-balanced controlled-current HF electrostimulation waveform can be used.
    Type: Grant
    Filed: November 24, 2021
    Date of Patent: January 16, 2024
    Assignee: NOCTRIX HEALTH, INC.
    Inventor: Shriram Raghunathan
  • Patent number: 11872384
    Abstract: Methods of operating a blood pump having a magnetically levitated impeller. A method of operating a blood pump includes controlling supply of drive currents to drive coils of the blood pump to magnetically rotate an impeller around an impeller axis of rotation within a blood flow channel of a blood pump. Supply of a bearing current to a levitation coil of the blood pump is controlled to magnetically levitate the impeller in a direction transverse to the impeller axis of rotation so as to minimize power consumption of the blood pump during operation of the blood pump.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: January 16, 2024
    Assignee: TC1 LLC
    Inventor: Christopher J. Cotter
  • Patent number: 11844952
    Abstract: Implantable systems are described that include a stimulation device positionable in vivo and configured to communicatively couple to electrodes configured to stimulate or block body tissue and an auxiliary device positionable in vivo and including one or more coils configured to wirelessly couple, in vivo, to the stimulation device and to wirelessly couple to an ex vivo device. The auxiliary device may include a coil driver and a power source controlled by a processor and memory for storing data instructions for the coil driver and for storing data received from the stimulation device. The auxiliary device may also include a radio transceiver and an antenna. The stimulation device may include a housing, a coil, a power source and an integrated circuit for controlling the electrodes. The stimulation device may be coupled to a cuff via a lead and physically coupled to the auxiliary device.
    Type: Grant
    Filed: February 1, 2021
    Date of Patent: December 19, 2023
    Assignee: Galvani Bioelectronics Limited
    Inventor: Rizwan Bashirullah
  • Patent number: 11833350
    Abstract: Systems, devices, and methods for electroporation ablation therapy are disclosed in the context of esophageal ablation. An ablation device may include a first catheter defining a longitudinal axis and a lumen therethrough. A balloon may be coupled to the first catheter. The balloon may be configured to transition between a deflated configuration and an inflated configuration. A second catheter may extend from a distal end of the first catheter lumen. A set of splines including electrodes formed on a surface of each of the splines may couple to the distal end of the first catheter lumen and a distal portion of the second catheter. The second catheter may be configured for translation along the longitudinal axis to transition the set of splines between a first configuration and a second configuration.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: December 5, 2023
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Raju Viswanathan, Gary Long, Jean-Luc Pageard
  • Patent number: 11826151
    Abstract: A system and method for physiological data classification for use in facilitating diagnosis is provided. A physiological monitor includes a feedback button and physiological data obtained via the physiological monitor is stored in a database. The physiological data is divided into segments and one or more data segments are classified as noise. A determination is made that at least one of the data segments classified as noise includes a marker indicating a press of the feedback button on the physiological monitor. A set of the physiological data including and surrounding the physiological data occurring during the press of the feedback button is identified within the data segment classified as noise. The identified set of physiological data is provided with the data segments classified as valid for analysis.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: November 28, 2023
    Assignee: Bardy Diagnostics, Inc.
    Inventors: Gust H. Bardy, Ezra M. Dreisbach
  • Patent number: 11806153
    Abstract: A portable electrocardiograph includes: a recording section configured to record data corresponding to electrocardiogram of a subject; a detecting section configured to detect approach of a portable device having a function to perform short-range wireless communication; and a control section configured to start recording of the data in the recording section in a case where it is satisfied a start condition including a fact that the approach of the device is detected by the detecting section.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: November 7, 2023
    Inventors: Satoshi Saitoh, Jun Motogi
  • Patent number: 11793446
    Abstract: Apparatus for use with an electroanatomical mapping system, an elongated needle assembly having a distal energy emitter configured to be detectable by the electroanatomical mapping system, an energy-delivery assembly having at least one sensor configured to receive, at least in part, the distal energy emitter of the elongated needle assembly in such a way that the distal energy emitter and said at least one sensor are movable relative to each other. The apparatus includes a signal-interface assembly. The signal-interface assembly includes a signal-input section configured to be signal connectable to said at least one sensor of the energy-delivery assembly. A signal-output section is configured to be signal connectable to an input section of the electroanatomical mapping system.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: October 24, 2023
    Assignee: Boston Scientific Medical Device Limited
    Inventors: Matthew MacDonald, Charlene Leung, Bryan Gellner
  • Patent number: 11771360
    Abstract: In one example, a cardiac monitoring system, comprises a processor to receive a segment of an electrocardiogram (ECG) signal of a patient, and a memory to store the segment of the ECG. The processor is configured to identify QRS complexes in the segment of the ECG signal, compare the QRS complexes in the segment to the other QRS complexes in the segment to identify a main template QRS complex, identify the QRS complexes in the segment that are similar to the main template, determine RR intervals between consecutive similar QRS complexes to calculate RR variability in the RR intervals, and detect atrial fibrillation (AF) in the segment when RR variability is greater than a threshold value. Other examples and related methods are also disclosed herein.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: October 3, 2023
    Assignee: West Affum Holdings DAC
    Inventor: Jaeho Kim
  • Patent number: 11766331
    Abstract: An assembly for reshaping a cardiac ventricle in a patient comprising an implantable device for reshaping a ventricle comprising a tether, a non-implantable tool which is detachably connectable to said implantable device and has a proximal portion and a distal portion opposite to said proximal portion; the implantable device further comprises an active anchor adapted to be detachably connected to the distal portion of the tool; the active anchor comprises an abutment portion adapted to abut against a structure of the ventricle; the active anchor of the implantable device comprises an adjustment device adapted to adjust the tensional state of the tether; the distal portion of the tool comprises an adjustment key adapted to cooperate with the adjustment device of the active anchor; the proximal portion of the tool comprises a maneuvering interface which is operatively connectable to said adjustment key for adjusting the tensional state of the tether by acting on the maneuvering interface of the proximal portion
    Type: Grant
    Filed: November 22, 2022
    Date of Patent: September 26, 2023
    Assignee: Politecnico di Milano
    Inventors: Riccardo Vismara, Gianfranco Beniamino Fiore, Michal Jaworek, Edoardo Maroncelli, Federico Lucherini, Eleonora Salurso, Gianmarco Provaroni, Guido Gelpi, Claudia Romagnoni, Monica Contino
  • Patent number: 11751794
    Abstract: Electrical activation of tissue can be mapped from using electrophysiological data from a plurality of electrodes carried by a high density grid catheter. Each clique of three or more electrodes will define a pair of orthogonal bipoles as well as several unipoles. An electroanatomical mapping system can analyze the electrophysiological data such that, for each clique, an integral of an omnipolar electrogram the best morphologically matches a representative (e.g., average) unipolar electrogram for the clique is identified. The orientation of the best-fit omnipole is then defined as the activation direction for the clique. The conduction velocity magnitude can also be computed as a ratio of an amplitude of the unipolar electrogram for the clique to an amplitude of the integral of the omnipolar electrogram for the clique along the activation direction. The resulting activation map can also be output graphically.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: September 12, 2023
    Assignee: St. Jude Medical, Cardiology Division, Inc.
    Inventor: Don Curtis Deno
  • Patent number: 11744503
    Abstract: This document discusses, among other things, systems and methods to detect an initial arrhythmia event indication and, after a threshold amount of detection window intervals detecting the initial arrhythmia event indication, adjust a set of arrhythmia parameters or at least one of a respective set of parameter thresholds to increase sensitivity of an extended arrhythmia event indication detection.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: September 5, 2023
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Sunipa Saha, David L. Perschbacher, Deepa Mahajan
  • Patent number: 11730962
    Abstract: The present application relates to a new stimulation design which can be utilized to treat neurological conditions. The stimulation system produces a combination of burst and tonic stimulation which alters the neuronal activity of the predetermined site, thereby treating the neurological condition or disorder.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: August 22, 2023
    Inventor: Dirk De Ridder
  • Patent number: 11723577
    Abstract: Techniques are disclosed for explaining and visualizing an output of a machine learning system that detects cardiac arrhythmia in a patient. In one example, a computing device receives cardiac electrogram data sensed by a medical device. The computing device applies a machine learning model, trained using cardiac electrogram data for a plurality of patients, to the received cardiac electrogram data to determine, based on the machine learning model, that an episode of arrhythmia has occurred in the patient and a level of confidence in the determination that the episode of arrhythmia has occurred in the patient. In response to determining that the level of confidence is greater than a predetermined threshold, the computing device displays, to a user, a portion of the cardiac electrogram data, an indication that the episode of arrhythmia has occurred, and an indication of the level of confidence that the episode of arrhythmia has occurred.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: August 15, 2023
    Assignee: Medtronic, Inc.
    Inventors: Lindsay A. Pedalty, Niranjan Chakravarthy, Rodolphe Katra, Tarek D. Haddad, Andrew Radtke, Siddharth Dani, Donald R. Musgrove
  • Patent number: 11724096
    Abstract: A blood pump for supporting the heart may be provided that includes: a rotor with delivery elements; a rotor drive; a pressure sensor; and a regulating device that regulates a pressure or a hemodynamic parameter by means of control of the rotor drive. The pressure and/or the hemodynamic parameter may be determined by means of one or a plurality of hemodynamic sensors and/or from operating parameters of the pump. The regulating device may be suitable for regulating a hemodynamic parameter successively, such as periodically, to different target values. Using such regulation, the blood pump may be operated in an optimized manner, and operation of the blood pump may be varied in a targeted and patient-protective manner in order to attain certain goals.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: August 15, 2023
    Assignee: Berlin Heart GmbH
    Inventor: Marcus Granegger
  • Patent number: 11712572
    Abstract: A controller-transmitter transmits acoustic energy through the body to an implanted acoustic receiver-stimulator. The receiver-stimulator converts the acoustic energy into electrical energy and delivers the electrical energy to tissue using an electrode assembly. The receiver-stimulator limits the output voltage delivered to the tissue to a predetermined maximum output voltage. In the presence of interfering acoustic energy sources output voltages are thereby limited prior to being delivered to the tissue.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: August 1, 2023
    Assignee: EBR Systems, Inc.
    Inventors: David F. Moore, Paul Mohr, N. Parker Willis, Axel F. Brisken