Patents by Inventor Paul J. DeGroot

Paul J. DeGroot 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: 20200289816
    Abstract: Implantable leadless cardiac pacing systems and methods for providing substernal pacing using the leadless cardiac pacing systems are described. In one embodiment, an implantable leadless cardiac pacing system includes a housing, a first electrode on the housing, a second electrode on the housing, and a pulse generator within the housing and electrically coupled to the first electrode and the second electrode. The housing is implanted substantially within an anterior mediastinum of a patient and the pulse generator is configured to deliver pacing pulses to a heart of the patient via a therapy vector formed between the first and second electrodes.
    Type: Application
    Filed: May 28, 2020
    Publication date: September 17, 2020
    Inventors: Amy E. Thompson-Nauman, Melissa G.T. Christie, Paul J. DeGroot, Rick D. McVenes
  • Publication number: 20200282203
    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: Application
    Filed: May 20, 2020
    Publication date: September 10, 2020
    Inventors: Mark T. Marshall, Jian Cao, Melissa G.T. Christie, Paul J. DeGroot, Vladimir P. Nikolski, Amy E. Thompson-Nauman
  • Patent number: 10668270
    Abstract: Implantable leadless cardiac pacing systems and methods for providing substernal pacing using the leadless cardiac pacing systems are described. In one embodiment, an implantable leadless cardiac pacing system includes a housing, a first electrode on the housing, a second electrode on the housing, and a pulse generator within the housing and electrically coupled to the first electrode and the second electrode. The housing is implanted substantially within an anterior mediastinum of a patient and the pulse generator is configured to deliver pacing pulses to a heart of the patient via a therapy vector formed between the first and second electrodes.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: June 2, 2020
    Assignee: Medtronic, Inc.
    Inventors: Amy E. Thompson-Nauman, Melissa G. T. Christie, Paul J. DeGroot, Rick D. McVenes
  • 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
  • Publication number: 20200147402
    Abstract: An implantable cardiac defibrillator (ICD) system includes an ICD implanted subcutaneously in a patient, a defibrillation lead having a proximal portion coupled to the ICD and a distal portion having a defibrillation electrode configured to deliver a defibrillation or cardioversion shock to a heart of the patient, and a pacing lead that includes a distal portion having one or more electrodes and a proximal portion coupled to the ICD. The distal portion of the pacing lead is implanted at least partially along a posterior side of a sternum of the patient within the anterior mediastinum. The ICD is configured to provide pacing pulses to the heart of the patient via the pacing lead and provide defibrillation shocks to the patient via the defibrillation lead. As such, the implantable cardiac system provides pacing from the substernal space for an extravascular ICD system.
    Type: Application
    Filed: January 14, 2020
    Publication date: May 14, 2020
    Inventors: Amy E. Thompson-Nauman, Melissa G.T. Christie, Paul J. DeGroot, Rick D. McVenes, Becky L. Dolan
  • Publication number: 20200069952
    Abstract: Substernal implantable cardioveter-defibrillator (ICD) systems and methods for providing substernal electrical stimulation therapy to treat malignant tachyarrhythmia, e.g., ventricular tachycardia (VT) and ventricular fibrillation (VF) are described. In one example, an implantable cardioveter-defibrillator (ICD) system includes an ICD implanted in a patient and an implantable medical electrical lead. The lead includes an elongated lead body having a proximal end and a distal portion, a connector at the proximal end of the lead body configured to couple to the ICD, and one or more electrodes along the distal portion of the elongated lead body. The distal portion of the elongated lead body of the lead is implanted substantially within an anterior mediastinum of the patient and the ICD is configured to deliver electrical stimulation to a heart of the patient using the one or more electrodes.
    Type: Application
    Filed: November 8, 2019
    Publication date: March 5, 2020
    Inventors: Amy E. Thompson-Nauman, Melissa G.T. Christie, Paul J. DeGroot, Rick D. McVenes, Becky L. Dolan
  • Patent number: 10556117
    Abstract: An implantable cardiac defibrillator (ICD) system includes an ICD implanted subcutaneously in a patient, a defibrillation lead having a proximal portion coupled to the ICD and a distal portion having a defibrillation electrode configured to deliver a defibrillation or cardioversion shock to a heart of the patient, and a pacing lead that includes a distal portion having one or more electrodes and a proximal portion coupled to the ICD. The distal portion of the pacing lead is implanted at least partially along a posterior side of a sternum of the patient within the anterior mediastinum. The ICD is configured to provide pacing pulses to the heart of the patient via the pacing lead and provide defibrillation shocks to the patient via the defibrillation lead. As such, the implantable cardiac system provides pacing from the substernal space for an extravascular ICD system.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: February 11, 2020
    Assignee: MEDTRONIC, INC.
    Inventors: Amy E. Thompson-Nauman, Melissa G. T. Christie, Paul J. DeGroot, Rick D. McVenes, Becky L. Dolan
  • Patent number: 10525272
    Abstract: Implantable cardiac systems and methods for providing substernal pacing in an ICD system are described. In one example, an implantable cardiac system comprises an ICD system and an implantable leadless pacing device (LPD) communicatively coupled to the ICD system. The ICD system includes an ICD and an implantable defibrillation lead having a proximal portion coupled to the ICD and a distal portion having a defibrillation electrode configured to deliver a defibrillation shock to a heart of the patient. The LPD includes a housing, a first electrode on the housing, a second electrode on the housing, and a pulse generator within the housing and electrically coupled to the first electrode and the second electrode. The housing of the LPD is implanted substantially within an anterior mediastinum of the patient and the pulse generator is configured to deliver pacing pulses to a heart via the first and second electrodes.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: January 7, 2020
    Assignee: Medtronic, Inc.
    Inventors: Amy E. Thompson-Nauman, Melissa G. T. Christie, Paul J. DeGroot, Rick D. McVenes
  • Publication number: 20190357795
    Abstract: A system for detecting an atrial tachyarrhythmia episode includes a medical device having sensing circuitry configured to receive a cardiac electrical signal from electrodes coupled to the medical device and a processor configured to detect an atrial tachyarrhythmia episode in response to a time duration of the cardiac electrical signal classified as an atrial tachyarrhythmia being greater than or equal to a first detection threshold. The processor is configured to determine if detection threshold adjustment criteria are met based on at least the detected first atrial tachyarrhythmia episode and adjust the first detection threshold to a second detection threshold different than the first detection threshold in response to the detection threshold adjustment criteria being met.
    Type: Application
    Filed: August 5, 2019
    Publication date: November 28, 2019
    Inventors: Jian CAO, Mark L. BROWN, Elise J. HIGGINS, Paul J. DEGROOT
  • Patent number: 10471267
    Abstract: Substernal implantable cardioverter-defibrillator (ICD) systems and methods for providing substernal electrical stimulation therapy to treat malignant tachyarrhythmia, e.g., ventricular tachycardia (VT) and ventricular fibrillation (VF) are described. In one example, an implantable cardioverter-defibrillator (ICD) system includes an ICD implanted in a patient and an implantable medical electrical lead. The lead includes an elongated lead body having a proximal end and a distal portion, a connector at the proximal end of the lead body configured to couple to the ICD, and one or more electrodes along the distal portion of the elongated lead body. The distal portion of the elongated lead body of the lead is implanted substantially within an anterior mediastinum of the patient and the ICD is configured to deliver electrical stimulation to a heart of the patient using the one or more electrodes.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: November 12, 2019
    Assignee: Medtronic, Inc.
    Inventors: Amy E. Thompson-Nauman, Melissa G. T. Christie, Paul J. DeGroot, Rick D. McVenes, Becky L. Dolan
  • Publication number: 20190329045
    Abstract: An implantable medical device system includes an extracardiac sensing device and an intracardiac pacemaker. The sensing device senses a P-wave attendant to an atrial depolarization of the heart via housing-based electrodes carried by the sensing device when the sensing device is implanted outside the cardiovascular system and sends a trigger signal to the intracardiac pacemaker in response to sensing the P-wave. The intracardiac pacemaker detects the trigger signal and schedules a ventricular pacing pulse in response to the detected trigger signal.
    Type: Application
    Filed: July 12, 2019
    Publication date: October 31, 2019
    Inventors: Jian CAO, Paul J. DEGROOT, Todd J. SHELDON
  • Publication number: 20190308026
    Abstract: A cardiac medical system, such as an implantable cardioverter defibrillator (ICD) system, receives a cardiac electrical signal by and senses cardiac events when the signal crosses an R-wave sensing threshold. The system determines at least one sensed event parameter from the cardiac electrical signal for consecutive cardiac events sensed by the sensing circuit and compares the sensed event parameters to P-wave oversensing criteria. The system detects P-wave oversensing in response to the sensed event parameters meeting the P-wave oversensing criteria; and adjusts at least one of an R-wave sensing control parameter or a therapy delivery control parameter in response to detecting the P-wave oversensing.
    Type: Application
    Filed: June 24, 2019
    Publication date: October 10, 2019
    Inventors: Xusheng ZHANG, Paul J. DEGROOT
  • Patent number: 10368769
    Abstract: A system for detecting an atrial tachyarrhythmia episode includes a medical device having sensing circuitry configured to receive a cardiac electrical signal from electrodes coupled to the medical device and a processor configured to detect an atrial tachyarrhythmia episode in response to a time duration of the cardiac electrical signal classified as an atrial tachyarrhythmia being greater than or equal to a first detection threshold. The processor is configured to determine if detection threshold adjustment criteria are met based on at least the detected first atrial tachyarrhythmia episode and adjust the first detection threshold to a second detection threshold different than the first detection threshold in response to the detection threshold adjustment criteria being met.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: August 6, 2019
    Assignee: Medtronic, Inc.
    Inventors: Jian Cao, Mark L. Brown, Elise J. Higgins, Paul J. Degroot
  • Patent number: 10350417
    Abstract: An implantable medical device system includes an extracardiac sensing device and an intracardiac pacemaker. The sensing device senses a P-wave attendant to an atrial depolarization of the heart via housing-based electrodes carried by the sensing device when the sensing device is implanted outside the cardiovascular system and sends a trigger signal to the intracardiac pacemaker in response to sensing the P-wave. The intracardiac pacemaker detects the trigger signal and schedules a ventricular pacing pulse in response to the detected trigger signal.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: July 16, 2019
    Assignee: Medtronic, Inc.
    Inventors: Jian Cao, Paul J DeGroot, Todd J Sheldon
  • Patent number: 10328274
    Abstract: A cardiac medical system, such as an implantable cardioverter defibrillator (ICD) system, receives a cardiac electrical signal by and senses cardiac events when the signal crosses an R-wave sensing threshold. The system determines at least one sensed event parameter from the cardiac electrical signal for consecutive cardiac events sensed by the sensing circuit and compares the sensed event parameters to P-wave oversensing criteria. The system detects P-wave oversensing in response to the sensed event parameters meeting the P-wave oversensing criteria; and adjusts at least one of an R-wave sensing control parameter or a therapy delivery control parameter in response to detecting the P-wave oversensing.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: June 25, 2019
    Assignee: Medtronic, Inc.
    Inventors: Xusheng Zhang, Paul J. Degroot
  • Publication number: 20190091467
    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: Application
    Filed: November 27, 2018
    Publication date: March 28, 2019
    Inventors: Mark T. MARSHALL, Jian CAO, Melissa G.T. CHRISTIE, Paul J. DEGROOT, Vladimir P. NIKOLSKI, Amy E. THOMPSON-NAUMAN
  • Patent number: 10213125
    Abstract: A method and medical device for detecting a cardiac event that includes sensing a cardiac signal, determining RR-intervals in response to the sensed cardiac signal, detecting a cardiac event in response to the RR-intervals, iteratively sensing a predetermined number of P-waves in response to detecting the cardiac event, and confirming the cardiac event in response to the iteratively sensed P-waves.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: February 26, 2019
    Assignee: Medtronic, Inc.
    Inventors: Jian Cao, Paul J DeGroot
  • Patent number: 10137295
    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: January 2, 2018
    Date of Patent: November 27, 2018
    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: 10004418
    Abstract: A method and medical device for identifying a cardiac waveform that includes sensing cardiac signals, determining a plurality of RR-intervals in response to the sensed cardiac signals, determining R-waves associated with the plurality of RR-intervals, determining P-waves in response to the determined R-waves, determining parameters associated with each P-wave, determining relative changes of the P-waves in response to the determined parameters, determining whether each of the P-waves match within a match threshold in response to the determined relative changes, and generating a P-wave template in response to each of the P-waves matching within the match threshold.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: June 26, 2018
    Assignee: Medtronic, Inc.
    Inventors: Jian Cao, Paul J DeGroot
  • Publication number: 20180117303
    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: Application
    Filed: January 2, 2018
    Publication date: May 3, 2018
    Inventors: Mark T. Marshall, Jian Cao, Melissa G.T. Christie, Paul J. DeGroot, Vladimir P. Nikolski, Amy E. Thompson-Nauman