Patents Assigned to Cardiac Pacemakers, Inc.
  • Patent number: 10926095
    Abstract: Systems and methods for pacing cardiac conductive tissue are described. A medical system includes an electrostimulation circuit to generate His-bundle pacing (HBP) pulses for delivery at or near a His bundle of the heart. A control circuit may time the delivery of the HBP pulses within a tissue refractory period subsequent to an intrinsic His-bundle activation of a first His-bundle portion. Based on an evoked His-bundle activation of a second His-bundle portion, the system may determine whether correction of intra-Hisian block has occurred. The system additionally includes a threshold test circuit to determine an individualized pacing threshold representing minimal energy to excite the His bundle and to correct the cardiac conduction abnormality.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: February 23, 2021
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Allan Charles Shuros, David Arthur Casavant
  • Patent number: 10921396
    Abstract: Systems and methods for sensing external magnetic fields in implantable medical devices are provided. One aspect of this disclosure relates to an apparatus for sensing magnetic fields. An apparatus embodiment includes a sensing circuit with at least one inductor having a magnetic core that saturates in the presence of a magnetic field having a prescribed flux density. The apparatus embodiment also includes an impedance measuring circuit connected to the sensing circuit. The impedance measuring circuit is adapted to measure impedance of the sensing circuit and to provide a signal when the impedance changes by a prescribed amount. According to an embodiment, the sensing circuit includes a resistor-inductor-capacitor (RLC) circuit. The impedance measuring circuit includes a transthoracic impedance measurement module (TIMM), according to an embodiment. Other aspects and embodiments are provided herein.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: February 16, 2021
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Karl Gauglitz, Thomas M. Bocek, Mark Rutzer, Lorin W. Matthews, William E. Reagor, Blair Erbstoeszer
  • Patent number: 10918875
    Abstract: An implantable medical device (IMD) with a receiving coil for wireless power transfer. The receiving coil may be disposed about a flux concentrator located in a housing of the IMD. The flux concentrator may concentrate non-radiative near-field energy through the receiving coil. In some cases, the near-field energy may be captured and converted into electrical energy that may be used to recharge a rechargeable power source of the IMD.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: February 16, 2021
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventors: Keith R. Maile, William J. Linder, Moira B. Sweeney, Ryan Peter Solstad
  • Patent number: 10918858
    Abstract: An Implantable Medical Device (IMD) configured to be implantable in a ventricle of a patient's heart may include a housing, a first electrode secured relative to the housing, a second electrode secured relative to the housing, the second electrode spaced from the first electrode, and circuitry in the housing operatively coupled to the first electrode and the second electrode. The circuitry may be configured to identify a measure of impedance between the first electrode and the second electrode at each of a plurality of times during a cardiac cycle. Each measure of impedance may represent a measure of volume of the ventricle in which the IMD is implanted. In some cases, the circuitry may generate a pacing pulse, the timing of which is based at least in part on the measure of volume of the ventricle at two or more of the plurality of times during the cardiac cycle.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: February 16, 2021
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventors: Qi An, Jeffrey E. Stahmann, Yinghong Yu, Pramodsingh Hirasingh Thakur, Michael J. Kane, Keith R. Maile
  • Publication number: 20210038904
    Abstract: Implantable medical devices (IMD), such as but not limited to leadless cardiac pacemakers (LCP), subcutaneous implantable cardioverter defibrillators (SICD), transvenous implantable cardioverter defibrillators, neuro-stimulators (NS), implantable monitors (IM), may be configured to communicate with each other. In some cases, a first IMD may transmit instructions to a second IMD. In order to improve the chances of a successfully received transmission, the first IMD may transmit the instructions several times during a particular time frame, such as during a single heartbeat. If the second IMD receives the message more than once, the second IMD recognizes that the messages were redundant and acts accordingly.
    Type: Application
    Filed: October 29, 2020
    Publication date: February 11, 2021
    Applicant: CARDIAC PACEMAKERS, INC.
    Inventors: Brendan Early Koop, Paul Huelskamp, Lance Eric Juffer, Kyle Leonard Nelson, Keith R. Maile, Jacob M. Ludwig
  • Patent number: 10912520
    Abstract: In one example, a method of monitoring a sustained activity of a human or animal subject for the purpose of determining a risk group includes detecting a physical activity signal from the subject, determining a magnitude of the detected physical activity signal, initiating a timer in response to determining the magnitude of the physical activity signal exceeding an activity level threshold, triggering storing at least one value associated with the physical activity signal only when the magnitude of the physical activity signal exceeds the activity level threshold and the timer is greater than a duration threshold, and determining, using the processor circuit, an indication of the subject's cardiovascular disease based on the stored value.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: February 9, 2021
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Qi An, Pramodsingh Hirasingh Thakur, Viktoria A. Averina, Yi Zhang, Julie A. Thompson
  • Patent number: 10912943
    Abstract: Systems and methods for communicating between medical devices. In one example, an implantable medical device comprising may comprise one or more electrodes and a controller coupled to the electrodes. The controller may be configured to receive a first communication pulse at a first communication pulse time and a second communication pulse at a second communication pulse time via the one or more electrodes. The controller may further be configured to identify one of three or more symbols based at least in part on the time difference between the first communication pulse time and the second communication pulse time.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: February 9, 2021
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventors: Keith R. Maile, Michael J. Kane, Paul Huelskamp, Lance Eric Juffer, Jeffrey E. Stahmann
  • Patent number: 10905465
    Abstract: A delivery device for delivering an implantable leadless pacing device may include a catheter shaft a distal holding section for receiving the implantable leadless pacing device. In some cases, the delivery device may include a flow-sensing device to determine a pressure or flow-rate of a fluid within the distal holding section. Also included may be a handle assembly and a deployment mechanism to deploy the implantable leadless pacing device.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: February 2, 2021
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventors: Allan Charles Shuros, Brian Soltis, Yinghong Yu, Arjun D. Sharma
  • Patent number: 10905872
    Abstract: An IMD may include a housing with a controller and a power supply disposed within the housing. A distal electrode may be supported by a distal electrode support that biases the distal electrode toward an extended position in which the distal electrode extends distally from the distal end of the housing and allows the distal electrode to move proximally relative to the extended position in response to an axial force applied to the distal electrode in the proximal direction. In some cases, the distal electrode support may include a tissue ingrowth inhibiting outer sleeve that extends along the length of the distal electrode support and is configured to shorten when the distal electrode moves proximally relative to the extended position and to lengthen when the distal electrode moves back distally toward the extended position in order to accommodate movement of the distal electrode.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: February 2, 2021
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventors: Peter Toy, Keith R. Maile, Bryan J. Swackhamer, G. Shantanu Reddy, Stephen J. Hahn
  • Patent number: 10905889
    Abstract: Implantable medical devices such as leadless stimulation devices that may provide longer battery life while minimizing device size. In some cases, having the outer housing of the implantable medical device serve multiple roles, such as the battery case for an internal battery, may permit reduced device size by eliminating one or more layers or components within the device.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: February 2, 2021
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventors: William J. Linder, Keith R. Maile
  • Patent number: 10905886
    Abstract: An implantable medical device (IMD) may be configured for deployment at a patient's atrioventricular septum in order to sense and/or pace a patient's heart. The atrioventricular septum of the patient's heart may have an atrial facing side defining part of the right atrium of the patient's heart and a ventricle facing side defining part of the left ventricle of the patient's heart. The IMD may include a first component configured to be positioned at least in part in the right atrium of the patient's heart proximate the atrioventricular septum, and a second component configured to be positioned at least in part in the left ventricle.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: February 2, 2021
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventor: Lili Liu
  • Patent number: 10898142
    Abstract: Methods and devices for classifying a cardiac response to pacing involve establishing a retriggerable cardiac response classification window. A first cardiac response classification window is established subsequent to delivery of a pacing pulse. A cardiac signal following the pacing stimulation is sensed in the first classification window. A second cardiac response classification may be triggered if a trigger characteristic is detected in the first classification window. The cardiac signal is sensed in the second classification window if the second classification window is established. The cardiac response to the pacing stimulation is determined based on characteristics of the cardiac signal. The cardiac response may be determined to be one of a captured response, a non-captured response, a non-captured response added to an intrinsic beat, and a fusion/pseudofusion beat, for example.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: January 26, 2021
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Scott A. Meyer, Yanting Dong, Jeremy J. Maniak, Doug Birholz, John M. Voegele
  • Publication number: 20210016083
    Abstract: Delivery devices, systems, and methods for delivering implantable leadless pacing devices are disclosed. An example delivery device may an outer tubular member and an inner tubular member slidably disposed within the lumen of the outer tubular member. A distal holding section may extend distally of a distal end of the inner tubular member and define a cavity therein for receiving an implantable leadless pacing device. The device may further include a hub portion including at least a first hub portion affixed adjacent to the proximal end of the outer tubular member and a second hub portion affixed adjacent to the proximal end of the inner tubular member. A first locking mechanism configured to releasably couple the outer tubular member and the inner tubular member may be disposed within the hub portion.
    Type: Application
    Filed: October 7, 2020
    Publication date: January 21, 2021
    Applicant: CARDIAC PACEMAKERS, INC.
    Inventors: BENJAMIN J. HAASL, BRIAN L. SCHMIDT
  • Patent number: 10894163
    Abstract: Methods, systems and devices for providing cardiac resynchronization therapy (CRT) to a patient using a leadless cardiac pacemaker (LCP) implanted in or proximate the left ventricle of a patient. A setup phase is used to establish parameters in the therapy delivery. In operation, the method and/or device will sense at least one non-paced cardiac cycle to determine a native R-R interval, and then delivers a synchronization pace at an interval less than the native R-R interval followed by a plurality of pace therapies delivered at the R-R interval or a modification thereof.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: January 19, 2021
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventor: Jeffrey E. Stahmann
  • Patent number: 10893824
    Abstract: A system and method for automatically analyzing heart failure in a patient, including collecting physiological data from a patient using at least a first sensor and a second sensor to collect two or more sensor measurements, and calculating a first composite value based on at least a first sensor measurement wherein the first composite value is an indication of a likelihood that the patient's heart failure status has changed. If the first composite value is outside of a first specified range, then a second composite value is calculated based on at least a second sensor measurement, wherein the second composite value is an indication of a likelihood that the patient's heart failure status has changed. If the second composite value is outside of a second specified range, then an alert of change in heart failure status is generated.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: January 19, 2021
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Qi An, Yi Zhang
  • Patent number: 10896754
    Abstract: The technology herein relates to a troubleshooting system for remote patient monitoring. A plurality of triggering conditions defines a data transmission error between a sensor and a remote location. A data transmission log is configured to receive characterization data defining each successful data transmission between a communicator and the remote location. An input user interface is configured to receive input from a user and an output user interface is configured to provide notification to a user. Processing circuitry is in communication with the input interface and the output interface, where the processing circuitry is configured to compare each of the triggering conditions to the characterization data to identify a data transmission error. Upon identification of the data transmission error, the processing circuitry causes the output interface to present a query to the user.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: January 19, 2021
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Qi An, Kimberly Anne Eridon, Arwinder Pal Singh, Pratik K. Pandya, Ranganathan Balasubramanian Iyer, Viktoria A. Averina
  • Patent number: 10894162
    Abstract: Delivery devices, systems, and methods for delivering implantable leadless pacing devices are disclosed. An example delivery device may include an intermediate tubular member and an inner tubular member slidably disposed within a lumen of the intermediate tubular member. A distal holding section may extend distally of a distal end of the intermediate tubular member and define a cavity therein for receiving an implantable leadless pacing device. At least a portion of the lumen of the inner tubular member may be bifurcated to form a first lumen and a second lumen.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: January 19, 2021
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventors: Brian Soltis, Ronald W. Kunkel, Kurt G. Koubal, James P. Goodman
  • Patent number: 10893813
    Abstract: Various system embodiments comprise a stimulator adapted to deliver a stimulation signal for a heart failure therapy, a number of sensors adapted to provide at least a first measurement of a heart failure status and a second measurement of the heart failure status, and a controller. The controller is connected to the stimulator and to the number of sensors. The controller is adapted to use the first and second measurements to create a heart failure status index, and control the stimulator to modulate the signal using the index. Other aspects and embodiments are provided herein.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: January 19, 2021
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Imad Libbus, Krzysztof Z. Siejko, Marina V. Brockway, Robert J. Sweeney
  • Patent number: 10894167
    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. One or more electrodes may be supported by the distal extension. The leadless pacing device may be releasably coupled to an expandable anchor mechanism.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: January 19, 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: 10888702
    Abstract: An interrogation system for a medical device includes a memory storing a diagnostic algorithm, a processor configured to run the diagnostic algorithm, and a communication module configured to facilitate data transfer between the interrogation system and the medical device. The diagnostic algorithm is configured to reach a diagnostic conclusion based on data from the medical device. The diagnostic algorithm is configured to iteratively interrogate the medical device for the data from the medical device until the diagnostic algorithm reaches the diagnostic conclusion, each iterative interrogation requesting additional data as compared to prior iterations. The communication module is configured to receive the additional data from the medical device in response to each iterative interrogation. The diagnostic algorithm is further configured to store an indication of the diagnostic conclusion within the memory.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: January 12, 2021
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Jeffrey E. Stahmann, Howard D. Simms, Jr.