Patents by Inventor Matthew G. Fishler

Matthew G. Fishler has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220212019
    Abstract: Described herein are external devices, and methods for use therewith, that are configured to communicate with one or more implantable medical devices (IMDs) implanted within a patient using conductive communication, wherein the external device includes or is communicatively coupled to at least three external electrodes that are in contact with the patient. Certain such methods involve the external device identifying, for each IMD, of the plurality of IMDs, which one of the plurality of communication vectors is a preferred communication vector for communicating with the IMD, based on respective indicators of conductive communication quality that are determined for the plurality of communication vectors. Certain embodiments involve determining when there should be a reassessment of which one of the plurality of communication vectors is the preferred communication vector for communicating with an IMD, and in response thereto, identifying an updated preferred communication vector for communicating with the IMD.
    Type: Application
    Filed: March 22, 2022
    Publication date: July 7, 2022
    Applicant: Pacesetter, Inc.
    Inventors: Frank Lee, Thanh Tieu, Robert Williams, Suyashree Bhonsle, Jinto Zacharias, Matthew G. Fishler, Suresh Gurunathan, Benjamin T. Persson
  • Patent number: 11331496
    Abstract: A biostimulator, such as a leadless cardiac pacemaker, including an electrical feedthrough assembly mounted on a housing, is described. An electronics compartment of the housing can contain an electronics assembly to generate a pacing impulse, and the electrical feedthrough assembly can include an electrode tip to deliver the pacing impulse to a target tissue. A monolithically formed electrode body can have a pin integrated with a cup. The pin can be electrically connected to the electronics assembly, and the cup can be electrically connected to the electrode tip. Accordingly, the biostimulator can transmit the pacing impulse through the monolithic pin and cup to the target tissue. The cup can hold a filler having a therapeutic agent for delivery to the target tissue and may include retention elements for maintaining the filler at a predetermined location within the cup.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: May 17, 2022
    Assignee: Pacesetter, Inc.
    Inventors: Paul Paspa, Thomas B. Eby, Matthew G. Fishler, Carl Lance Boling, Thomas Robert Luhrs, Russell Klehn, Tyler J. Strang, Arees Garabed, Kavous Sahabi, Brett Villavicencio, Wes Alleman, Alex Soriano, Matthew R. Malone, Conor P. Foley
  • Publication number: 20220047877
    Abstract: A biostimulator, such as a leadless cardiac pacemaker, including a fixation element to engage tissue and one or more backstop elements to resist back-out from the tissue, is described. The fixation element can be mounted on a housing of the biostimulator such that a helix of the fixation element extends distally to a leading point. The leading point can be located on a distal face of the helix at a position that is proximal from a center of the distal face. The backstop elements can include non-metallic filaments, such as sutures, or can include a pinch point of the biostimulator. The backstop features can grip the tissue to prevent unscrewing of the fixation element. Other embodiments are also described and claimed.
    Type: Application
    Filed: October 28, 2021
    Publication date: February 17, 2022
    Inventors: Craig E. Mar, Thomas B. Eby, Paul Paspa, Sondra Orts, Matthew G. Fishler, Stephen Lee, Carl Lance Boling, Thomas Robert Luhrs
  • Patent number: 11239928
    Abstract: Described herein is an implantable medical device (IMD) that wirelessly communicates another IMD, and methods for use therewith. Such a method can include receiving one or more implant-to-implant (i2i) communication signals from the other IMD using a communication receiver of the IMD, measuring a strength of at least one of the one or more received i2i communication signals or a surrogate thereof, and updating a strength metric based on the measured strength or surrogate thereof. The method further includes determining, based on the updated strength metric, whether to increase, decrease, or maintain the sensitivity of the communication receiver of the IMD, and responding accordingly such that the sensitivity is sometimes increased, sometimes decreased, and sometimes maintained. The method can also include selectively causing a transmitter of the IMD to transmit an i2i communication signal to the other IMD requesting that the other IMD adjust its transmission strength.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: February 1, 2022
    Assignee: Pacesetter, Inc.
    Inventors: Matthew G. Fishler, Benjamin T. Persson, Suresh Gurunathan
  • Patent number: 11211805
    Abstract: Described herein are methods, devices, and systems that estimate a total amount of time it takes to discharge a battery of an IMD from initial to subsequent capacity levels, which total amount of time is indicative of a longevity of the IMD. In certain embodiments, a range of capacity levels for the battery is separated into N separate intervals. For each of the N intervals, an estimate of an amount of time it takes for the battery to discharge from a beginning to an end of the interval is determined, to thereby determine N amounts of time that are summed to estimate the total amount of time that it takes to discharge the battery from the initial to subsequent capacity levels. In other embodiments, an iterative equation is used to estimate the total amount of time takes it takes to discharge the battery from the initial to subsequent capacity levels.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: December 28, 2021
    Assignee: PACESETTER, INC.
    Inventor: Matthew G. Fishler
  • Patent number: 11185704
    Abstract: A biostimulator, such as a leadless cardiac pacemaker, including a fixation element to engage tissue and one or more backstop elements to resist back-out from the tissue, is described. The fixation element can be mounted on a housing of the biostimulator such that a helix of the fixation element extends distally to a leading point. The leading point can be located on a distal face of the helix at a position that is proximal from a center of the distal face. The backstop elements can include non-metallic filaments, such as sutures, or can include a pinch point of the biostimulator. The backstop features can grip the tissue to prevent unscrewing of the fixation element. Other embodiments are also described and claimed.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: November 30, 2021
    Assignee: PACESETTER, INC.
    Inventors: Craig E. Mar, Thomas B. Eby, Paul Paspa, Sondra Orts, Matthew G. Fishler, Stephen Lee, Carl Lance Boling, Thomas Robert Luhrs
  • Publication number: 20210346707
    Abstract: Embodiments described herein relate to implantable medical devices (IMDs) and methods for use therewith. Such a method includes, during each of a plurality of message alert periods during which a communication capability of the IMD is enabled, determining whether a valid message is detected. In response to determining that no valid message was detected during a message alert period, the communication capability of the IMD is temporarily disable for a disable period. A length of the disable period may be increased in response to no valid message being detected during two consecutive message alert periods. A length of the disable period may be dependent on an operational mode of the IMD, such that the length of the disable period differs for different operational modes. The IMD may also enter a noise state, and remain in the noise state until the IMD receives a specified number of valid messages.
    Type: Application
    Filed: July 20, 2021
    Publication date: November 11, 2021
    Applicant: Pacesetter, Inc.
    Inventors: Matthew G. Fishler, Benjamin T. Persson, Suresh Gurunathan
  • Publication number: 20210330986
    Abstract: Embodiments described herein relate to implantable medical devices (IMDs) and methods for use therewith. Such a method includes using an accelerometer of an IMD (e.g., a leadless pacemaker) to produce one or more accelerometer outputs indicative of the orientation of the IMD. The method can also include controlling communication pulse parameter(s) of one or more communication pulses (produced by pulse generator(s)) based on accelerator output(s) indicative of the orientation of the IMD. The communication pulse parameter(s) that is/are controlled can be, e.g., communication pulse amplitude, communication pulse width, communication pulse timing, and/or communication pulse morphology. Such embodiments can be used to improve conductive communications between IMDs whose orientation relative to one another may change over time, e.g., due to changes in posture and/or due to cardiac motion over a cardiac cycle.
    Type: Application
    Filed: July 8, 2021
    Publication date: October 28, 2021
    Applicant: Pacesetter, Inc.
    Inventors: Xiaoyi Min, David Ligon, Weiqun Yang, Shawn Chen, Matthew G. Fishler
  • Publication number: 20210308471
    Abstract: Described herein are methods, devices, and systems for providing an implantable leadless pacemaker (LP) with a remote follow-up capability whereby the LP can provide diagnostic information to an external device that is incapable of programming the LP, wherein the LP includes two or more implantable electrodes used to output both pacing pulses and conductive communication pulses. Such a method can include the LP monitoring for a presence of one or more notification conditions associated with the LP and/or associated with a patient within which the LP is implanted, and the LP periodically outputting an advertisement sequence of pulses, using at least implantable electrodes of the LP, irrespective of whether the LP recognizes the presence of at least one notification condition. The method can also include the LP recognizing the presence of at least one notification condition, and based thereon, the LP also outputting a notification sequence of pulses.
    Type: Application
    Filed: April 5, 2021
    Publication date: October 7, 2021
    Applicant: Pacesetter, Inc.
    Inventors: Matthew G. Fishler, Suresh Gurunathan, Benjamin T. Persson
  • Publication number: 20210308470
    Abstract: Described herein are methods, devices, and systems for providing an implantable leadless pacemaker (LP) with a remote follow-up capability whereby the LP can provide diagnostic information to an external device that is incapable of programming the LP, wherein the LP includes two or more implantable electrodes used to output both pacing pulses and conductive communication pulses. Such a method can include the LP monitoring for a presence of one or more notification conditions associated with the LP and/or associated with a patient within which the LP is implanted, and the LP periodically outputting an advertisement sequence of pulses, using at least implantable electrodes of the LP, irrespective of whether the LP recognizes the presence of at least one notification condition. The method can also include the LP recognizing the presence of at least one notification condition, and based thereon, the LP also outputting a notification sequence of pulses.
    Type: Application
    Filed: April 5, 2021
    Publication date: October 7, 2021
    Applicant: Pacesetter, Inc.
    Inventors: Matthew G. Fishler, Suresh Gurunathan, Benjamin T. Persson
  • Publication number: 20210290965
    Abstract: An implantable system includes a first leadless pacemaker (LP1) implanted in or on a first chamber of a heart and a second leadless pacemaker (LP2) implanted in or on a second chamber of the heart. The LP1 is configured to time delivery of one or more pacing pulses delivered to the first chamber of the heart based on timing of cardiac activity associated with the second chamber of the heart detected by the LP1 itself. The LP1 is also configured to transmit implant-to-implant (i2i) messages to the LP2. The LP2 is configured to time delivery of one or more pacing pulses delivered to the second chamber of the heart based on timing of cardiac activity associated with the second chamber of the heart as determined based on one or more i2i messages received by the LP2 from the LP1.
    Type: Application
    Filed: May 26, 2021
    Publication date: September 23, 2021
    Applicant: Pacesetter, Inc.
    Inventors: Xiaoyi Min, Matthew G. Fishler
  • Patent number: 11097113
    Abstract: An implantable system includes a first leadless pacemaker (LP1) implanted in or on a first chamber of a heart and a second leadless pacemaker (LP2) implanted in or on a second chamber of the heart. The LP1 uses at least two of its electrodes to transmit and receive implant-to-implant (i2i) messages to and from the LP2. During one or more periods of time, the LP1 times delivery of pacing pulse(s) to the first chamber of the heart based on timing of cardiac activity associated with the second chamber of the heart detected by the LP1 itself. During one or more further periods of time, the LP1 times delivery of pacing pulse(s) to the first chamber of the heart based on timing of cardiac activity associated with the second chamber of the heart as determined based on one or more i2i messages received by the LP1 from the LP2.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: August 24, 2021
    Assignee: Pacesetter, Inc.
    Inventors: Xiaoyi Min, Matthew G. Fishler
  • Patent number: 11090497
    Abstract: Embodiments described herein relate to implantable medical devices (IMDs) and methods for use therewith. Such a method includes using an accelerometer of an IMD (e.g., a leadless pacemaker) to produce one or more accelerometer outputs indicative of the orientation of the IMD. The method can also include controlling communication pulse parameter(s) of one or more communication pulses (produced by pulse generator(s)) based on accelerometer output(s) indicative of the orientation of the IMD. The communication pulse parameter(s) that is/are controlled can be, e.g., communication pulse amplitude, communication pulse width, communication pulse timing, and/or communication pulse morphology. Such embodiments can be used to improve conductive communications between IMDs whose orientation relative to one another may change over time, e.g., due to changes in posture and/or due to cardiac motion over a cardiac cycle.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: August 17, 2021
    Assignee: Pacesetter, Inc.
    Inventors: Xiaoyi Min, David Ligon, Weiqun Yang, Shawn Chen, Matthew G. Fishler
  • Patent number: 11071872
    Abstract: An implantable system includes a first leadless pacemaker (LP1) implanted in or on a first chamber of a heart and a second leadless pacemaker (LP2) implanted in or on a second chamber of the heart. The LP1 is configured to time delivery of one or more pacing pulses delivered to the first chamber of the heart based on timing of cardiac activity associated with the second chamber of the heart detected by the LP1 itself. The LP1 is also configured to transmit implant-to-implant (i2i) messages to the LP2. The LP2 is configured to time delivery of one or more pacing pulses delivered to the second chamber of the heart based on timing of cardiac activity associated with the second chamber of the heart as determined based on one or more i2i messages received by the LP2 from the LP1.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: July 27, 2021
    Assignee: Pacesetter, Inc.
    Inventors: Xiaoyi Min, Matthew G. Fishler
  • Publication number: 20210205628
    Abstract: An implantable system including an atrial leadless pacemaker (aLP) and a ventricular leadless pacemaker (vLP), and methods for use therewith, are configured or used to terminate a pacemaker mediated tachycardia (PMT). In an embodiment, in response to the aLP detecting a PMT, the aLP initiates a PMT PA interval, and the aLP does not inform the vLP, via an i2i communication, of an atrial sensed event that caused the PMT to be detected, thereby preventing the vLP from initiating a PV interval during the PMT PA interval. The aLP selectively terminates the PMT PA interval. Additionally, the aLP informs the vLP, via an i2i communication, of an intrinsic atrial event being detected during the PMT PA interval, or of an atrial paced event being performed in response to the PMT PA interval expiring without an intrinsic atrial event being detected during the PMT PA interval.
    Type: Application
    Filed: March 23, 2021
    Publication date: July 8, 2021
    Applicant: Pacesetter, Inc.
    Inventors: Chunlan Jiang, Matthew G. Fishler
  • Patent number: 10993674
    Abstract: The present disclosure provides systems and methods for classifying signals of interest in a cardiac rhythm management (CRM) device. A CRM device includes an intrinsic activation sensing circuit configured to pass signals falling within a first passband, a crosstalk sensing circuit configured to pass signals falling within a second passband, wherein the second passband contains higher frequencies than the first passband, and a computing device communicatively coupled to the intrinsic activation sensing circuit and the crosstalk sensing circuit, the computing device configured to classify a signal of interest as one of an intrinsic activation signal and a crosstalk signal based on whether the signal of interest is passed by the intrinsic activation sensing circuit and the crosstalk sensing circuit.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: May 4, 2021
    Assignee: PACESETTER, INC.
    Inventors: Matthew G. Fishler, Gene A. Bornzin, Benjamin T. Persson, Kenneth J. Carroll
  • Patent number: 10987518
    Abstract: An implantable system including an atrial leadless pacemaker (aLP) and a ventricular leadless pacemaker (vLP), and methods for use therewith, are configured or used to terminate a pacemaker mediated tachycardia (PMT). One of the aLP or the vLP detects a PMT and informs the other one. The aLP initiates a PMT PA interval that is shorter than a PA interval that the aLP would otherwise use for atrial pacing if a PMT was not detected. The vLP initiates a PMT PV interval that is longer than the PMT PA interval. If an intrinsic atrial or ventricular event is detected before PMT PA interval or the PMT PV interval expires, then these intervals will be terminated, otherwise an atrial chamber will be paced if the PMT PA interval expires, and/or a ventricular chamber will be paced if the PMT PV interval expires. This should have the effect of terminating the PMT.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: April 27, 2021
    Assignee: Pacesetter, Inc.
    Inventors: Chunlan Jiang, Matthew G. Fishler
  • Publication number: 20210093863
    Abstract: Implantable medical devices (IMDs) described herein, and methods for use therewith described herein, reduce how often an IMD accepts a false message and/or reduce adverse effects of an IMD accepting a false message. Such IMDs can be leadless pacemakers (LPs), or implantable cardio defibrillators (ICDs), but are not limited thereto. Such embodiments can be used help multiple IMDs (e.g., multiple LPs) implanted within a same patient maintain synchronous operation, such as synchronous multi-chamber pacing.
    Type: Application
    Filed: September 16, 2020
    Publication date: April 1, 2021
    Applicant: Pacesetter, Inc.
    Inventors: Donald Chin, Matthew G. Fishler, Benjamin T. Persson, Suresh Gurunathan
  • Publication number: 20210093873
    Abstract: Implantable medical devices (IMDs) described herein, and methods for use therewith described herein, reduce how often an IMD accepts a false message and/or reduce adverse effects of an IMD accepting a false message. Such IMDs can be leadless pacemakers (LPs), or implantable cardio defibrillators (ICDs), but are not limited thereto. Such embodiments can be used help multiple IMDs (e.g., multiple LPs) implanted within a same patient maintain synchronous operation, such as synchronous multi-chamber pacing.
    Type: Application
    Filed: September 16, 2020
    Publication date: April 1, 2021
    Applicant: Pacesetter, Inc.
    Inventors: Donald Chin, Matthew G. Fishler, Benjamin T. Persson, Suresh Gurunathan
  • Publication number: 20200403717
    Abstract: Described herein is an implantable medical device (IMD) that wirelessly communicates another IMD, and methods for use therewith. Such a method can include receiving one or more implant-to-implant (i2i) communication signals from the other IMD using a communication receiver of the IMD, measuring a strength of at least one of the one or more received i2i communication signals or a surrogate thereof, and updating a strength metric based on the measured strength or surrogate thereof. The method further includes determining, based on the updated strength metric, whether to increase, decrease, or maintain the sensitivity of the communication receiver of the IMD, and responding accordingly such that the sensitivity is sometimes increased, sometimes decreased, and sometimes maintained. The method can also include selectively causing a transmitter of the IMD to transmit an i2i communication signal to the other IMD requesting that the other IMD adjust its transmission strength.
    Type: Application
    Filed: June 9, 2020
    Publication date: December 24, 2020
    Applicant: Pacesetter, Inc.
    Inventors: Matthew G. Fishler, Benjamin T. Persson, Suresh Gurunathan