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: 20240042220
    Abstract: Methods, systems, and devices that detect arrhythmic episodes and perform arrhythmia discrimination are described. Such a system includes a leadless pacemaker (LP) that senses a near-field electrogram (NF-EGM), and a non-vascular implantable cardioverter defibrillator (NV-ICD) that senses a far-field electrogram (FF-EGM). The LP determines cardiac activity information based on the NF-EGM and optionally also based on paced cardiac events caused by the LP.
    Type: Application
    Filed: August 4, 2022
    Publication date: February 8, 2024
    Applicant: Pacesetter, Inc.
    Inventor: Matthew G. Fishler
  • Publication number: 20240009466
    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 25, 2023
    Publication date: January 11, 2024
    Applicant: Pacesetter, Inc.
    Inventors: Donald Chin, Matthew G. Fishler, Benjamin T. Persson, Suresh Gurunathan
  • Patent number: 11850435
    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: October 28, 2021
    Date of Patent: December 26, 2023
    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
  • Patent number: 11801391
    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: Grant
    Filed: September 16, 2020
    Date of Patent: October 31, 2023
    Assignee: Pacesetter, Inc.
    Inventors: Donald Chin, Matthew G. Fishler, Benjamin T. Persson, Suresh Gurunathan
  • Patent number: 11794022
    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: May 26, 2021
    Date of Patent: October 24, 2023
    Assignee: Pacesetter, Inc.
    Inventors: Xiaoyi Min, Matthew G. Fishler
  • Patent number: 11766570
    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: Grant
    Filed: July 20, 2021
    Date of Patent: September 26, 2023
    Assignee: Pacesetter, Inc.
    Inventors: Matthew G Fishler, Benjamin T. Persson, Suresh Gurunathan
  • Publication number: 20230285757
    Abstract: A leadless biostimulator has a housing including an electronics compartment, an electronics assembly mounted in the electronics compartment, a proximal electrode that disposed on and/or integrated into the housing, and an electrical feedthrough assembly. The electrical feedthrough assembly includes a distal electrode and a flange. The flange is mounted on the housing. The distal electrode is electrically isolated from the flange by an insulator and configured to be placed in contact with target tissue to which a pacing impulse is to be transmitted by the leadless biostimulator. A mount is mounted on the flange and thereby mounted on the electrical feedthrough assembly. A fixation element is mounted on the mount and configured to facilitate fixation of the leadless biostimulator to tissue of a patient.
    Type: Application
    Filed: May 17, 2023
    Publication date: September 14, 2023
    Applicant: 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
  • Patent number: 11717692
    Abstract: Certain embodiments of the present technology disclosed herein relate to implantable systems, and methods for use therewith, that use a temperature sensor to initially detect an onset of patient activity, and then use a motion sensor to confirm or reject the initial detection of the onset of patient activity. Other embodiments of the present technology disclosed herein relate to implantable systems, and methods for use therewith, that use a motion sensor to initially detect an onset of patient activity, and then use a temperature sensor to confirm or reject the initial detection of the onset of patient activity. The use of both a motion sensor and a temperature sensor provides improvements over using just one of the types of sensors for rate responsive pacing.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: August 8, 2023
    Assignee: Pacesetter, Inc.
    Inventors: Matthew G. Fishler, Paul Paspa
  • Publication number: 20230233867
    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 the IMD using an accelerometer to identify when the orientation of the IMD is such that the IMD will likely be able to successfully communicate with another IMD via one or more communication pulses sent from the IMD to the other IMD. The method also includes the IMD sending of the one or more communication pulses, that are used to communicate with the other IMD, when the orientation of the IMD is such that the IMD will likely be able to successfully communicate with the other IMD via one or more communication pulses sent from the IMD to the other IMD.
    Type: Application
    Filed: March 22, 2023
    Publication date: July 27, 2023
    Applicant: Pacesetter, Inc.
    Inventors: Xiaoyi Min, David Ligon, Weiqun Yang, Shawn Chen, Matthew G. Fishler
  • Publication number: 20230233868
    Abstract: Methods and systems for terminating a pacemaker mediated tachycardia (PMT) are described herein. During a period that a PMT is not detected, an implantable system delivers an atrial pacing pulse to an atrial cardiac chamber in response to a PA interval expiring without an intrinsic atrial event being detected during the PA interval. The systems performs atrial sensing to thereby monitor for intrinsic atrial events in the atrial cardiac chamber, performs ventricular sensing to thereby monitor for intrinsic ventricular events in a ventricular cardiac chamber, and detects the PMT. Additionally, the system, in response to the PMT being detected, initiates a PMT PA interval that is shorter than the PA interval that the system would otherwise use for atrial pacing if the PMT was not detected.
    Type: Application
    Filed: April 4, 2023
    Publication date: July 27, 2023
    Applicant: Pacesetter, Inc.
    Inventors: Chunlan Jiang, Matthew G. Fishler
  • Patent number: 11691017
    Abstract: An electrical feedthrough assembly, which is configured to be mounted on a housing of a leadless biostimulator, comprises an electrode body including a cup having an electrode wall extending distally from an electrode base around an electrode cavity, an electrode tip mounted on a distal end of the electrode body, and a filler in the electrode cavity between the electrode base and the electrode tip, wherein the filler includes a therapeutic agent. The electrode tip is configured to be placed in contact with target tissue to which a pacing impulse is to be transmitted by the leadless biostimulator. A pin extends proximally from the electrode base, wherein the pin is configured to be into contact with an electrical connector of an electronics assembly within the housing of the leadless biostimulator.
    Type: Grant
    Filed: April 19, 2022
    Date of Patent: July 4, 2023
    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: 20230173284
    Abstract: Implantable medical devices (IMDs), systems, and methods for use therewith are disclosed. One such method is for use by a leadless pacemaker (LP) configured to perform conductive communication with another implantable medical device (IMD). The method includes the LP storing information that specifies when, within a cardiac cycle, the LP and the other IMD implanted in a patient are likely oriented relative to one another such that conductive communication therebetween should be successful. The method also includes the LP sensing a signal indicative of cardiac activity of the patient over a plurality of cardiac cycles, and outputting one or more conductive communication pulses, during a portion of at least one of the cardiac cycles, wherein the portion of the at least one of the cardiac cycles is identified based on the signal that is sensed and the information that is stored.
    Type: Application
    Filed: January 31, 2023
    Publication date: June 8, 2023
    Applicant: Pacesetter, Inc.
    Inventors: Xiaoyi Min, David Ligon, Weiqun Yang, Shawn Chen, Matthew G. Fishler
  • Patent number: 11648407
    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: Grant
    Filed: March 23, 2021
    Date of Patent: May 16, 2023
    Assignee: Pacesetter, Inc.
    Inventors: Chunlan Jiang, Matthew G. Fishler
  • Patent number: 11642536
    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: Grant
    Filed: July 8, 2021
    Date of Patent: May 9, 2023
    Assignee: Pacesetter, Inc.
    Inventors: Xiaoyi Min, David Ligon, Weiqun Yang, Shawn Chen, Matthew G. Fishler
  • Patent number: 11633610
    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: Grant
    Filed: September 16, 2020
    Date of Patent: April 25, 2023
    Assignee: Pacesetter, Inc.
    Inventors: Donald Chin, Matthew G. Fishler, Benjamin T. Persson, Suresh Gurunathan
  • Publication number: 20230023767
    Abstract: An implantable medical device is disclosed herein and can be in the form of an implantable medical lead or a leadless pulse generator. The implantable medical device includes a body, at least one electrode and a tube-cut helical fixation anchor. The body includes a distal end and a proximal end opposite the distal end. The at least one electrode is supported on the body. The tube-cut helical fixation anchor distally extends from the distal end. The tube-cut helical fixation anchor may be fixed or extendable/retractable relative to the distal end. The tube-cut helical fixation anchor may be a result of a manufacturing process comprising cutting the tube-cut helical fixation anchor from a thin-walled tubular body.
    Type: Application
    Filed: October 3, 2022
    Publication date: January 26, 2023
    Inventors: Ivan Ma, Bruce Weir, Matthew G. Fishler, Ott Khouengboua
  • Patent number: 11478636
    Abstract: An implantable medical device is disclosed herein and can be in the form of an implantable medical lead or a leadless pulse generator. The implantable medical device includes a body, at least one electrode and a tube-cut helical fixation anchor. The body includes a distal end and a proximal end opposite the distal end. The at least one electrode is supported on the body. The tube-cut helical fixation anchor distally extends from the distal end. The tube-cut helical fixation anchor may be fixed or extendable/retractable relative to the distal end. The tube-cut helical fixation anchor may be a result of a manufacturing process comprising cutting the tube-cut helical fixation anchor from a thin-walled tubular body.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: October 25, 2022
    Assignee: PACESETTER, INC.
    Inventors: Ivan Ma, Bruce Weir, Matthew G. Fishler, Ott Khouengboua
  • Publication number: 20220313161
    Abstract: Described herein are methods, devices, and systems that enable a remote non-implantable device (RNID) to send commands to a leadless pacemaker (LP) implanted within a patient. The RNID provide commands to a local non-implantable device (LNID) over one or more communication networks, and the LNID sends the commands to a second implantable device (SID) by transmitting radio frequency (RF) communication signals, which include the commands, using an antenna of the LNID. After receiving the commands from the LNID, by receiving RF communication signals that include the commands using an antenna of the SID, the SID transmits conductive communication signals, which include the commands, using electrodes of the SID. The LP receives the commands from the SID by receiving the conductive communication signals, which include the commands, using electrodes of the LP, and the LP performs command responses based on the commands that originated from the RNID.
    Type: Application
    Filed: January 28, 2022
    Publication date: October 6, 2022
    Applicant: Pacesetter, Inc.
    Inventors: Reza Shahandeh, Gabriel Mouchawar, Mostafa Sadeghi, Matthew G. Fishler, Suresh Gurunathan, Benjamin T. Persson
  • Publication number: 20220249842
    Abstract: A leadless biostimulator, and an electrical feedthrough assembly for use therewith, are described herein. The leadless biostimulator comprises an electrode body including a cup having an electrode wall extending distally from an electrode base around an electrode cavity, an electrode tip mounted on a distal end of the electrode body, and a filler in the electrode cavity between the electrode base and the electrode tip, wherein the filler includes a therapeutic agent. The electrode tip is configured to be placed in contact with target tissue to which a pacing impulse is to be transmitted by the leadless biostimulator. A pin extends proximally from the electrode base, wherein the pin is configured to be into contact with an electrical connector of an electronics assembly within a housing of the leadless biostimulator, and wherein the electrical feedthrough assembly is configured to be mounted on the housing of the leadless biostimulator.
    Type: Application
    Filed: April 19, 2022
    Publication date: August 11, 2022
    Applicant: 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: 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