公开(公告)号：US20220409882A1

公开(公告)日：2022-12-29

申请号：US17815518

申请日：2022-07-27

Applicant: Medtronic, Inc.

Inventor： Amy E. Thompson-Nauman ,  Melissa G.T. Christie

IPC: A61N1/05 ,  A61N1/39

Abstract: Anchoring mechanisms for an implantable electrical medical lead that is positioned within a substernal space are disclosed. The anchoring mechanisms fixedly-position a distal portion of the lead, that is implanted in the substernal space.

公开(公告)号：US11524166B2

公开(公告)日：2022-12-13

申请号：US16786087

申请日：2020-02-10

Applicant: Medtronic, Inc.

Inventor： David A. Anderson ,  Mark T. Marshall ,  Vladimir P. Nikolski ,  Robert T. Sawchuk ,  Amy E. Thompson-Nauman ,  John D. Wahlstrand ,  Gregory A. Younker

IPC: A61N1/37 ,  A61N1/39 ,  A61N1/362 ,  A61N1/375 ,  A61N1/05

Abstract: An extra-cardiovascular implantable cardioverter defibrillator (ICD) having a low voltage therapy module and a high voltage therapy module is configured to select, by a control module of the ICD, a pacing output configuration from at least a low-voltage pacing output configuration of the low voltage therapy module and a high-voltage pacing output configuration of the high voltage therapy module. The high voltage therapy module includes a high voltage capacitor having a first capacitance and the low voltage therapy module includes a plurality of low voltage capacitors each having up to a second capacitance that is less than the first capacitance. The ICD control module controls a respective one of the low voltage therapy module or the high voltage therapy module to deliver extra-cardiovascular pacing pulses in the selected pacing output configuration via extra-cardiovascular electrodes coupled to the ICD.

公开(公告)号：US20220249835A1

公开(公告)日：2022-08-11

申请号：US17661150

申请日：2022-04-28

Applicant: Medtronic, Inc.

Inventor： Amy E. Thompson-Nauman ,  Melissa G.T. Christie ,  Rick D. McVenes

IPC: A61N1/05 ,  A61N1/365 ,  A61N1/372 ,  A61N1/375

Abstract: Implantable cardiac pacing systems and methods for providing substernal pacing are described. In one example, a cardiac pacing system includes a pacemaker implanted in a patient and an implantable medical electrical lead. The implantable medical electrical lead includes an elongated lead body having a proximal end and a distal portion, a connector configured to couple to the pacemaker at the proximal end of the elongated lead body, and one or more electrodes along the distal portion of the elongated lead body, wherein the distal portion of the elongated lead body of the lead is implanted substantially within an anterior mediastinum of the patient and the pacemaker is configured to deliver pacing pulses to a heart of the patient.

公开(公告)号：US11406838B2

公开(公告)日：2022-08-09

申请号：US16658473

申请日：2019-10-21

Applicant: Medtronic, Inc.

Inventor： David A. Anderson ,  Mark T. Marshall ,  Vladimir P. Nikolski ,  Robert T. Sawchuk ,  Amy E. Thompson-Nauman ,  John D. Wahlstrand ,  Gregory A. Younker

IPC: A61N1/39 ,  A61N1/362 ,  A61N1/365 ,  A61N1/37 ,  A61N1/375

Abstract: An implantable medical device is configured to control a therapy module to couple a capacitor array comprising a plurality of capacitors to a plurality of extra-cardiovascular electrodes and control the therapy module to deliver a composite pacing pulse to a patient's heart via the plurality of extra-cardiovascular electrodes by sequentially discharging at least a portion of the plurality capacitors to produce a series of at least two individual pulses that define the composite pacing pulse.

公开(公告)号：US20210268297A1

公开(公告)日：2021-09-02

申请号：US17185784

申请日：2021-02-25

Applicant: Medtronic, Inc.

Inventor： Vladimir P. Nikolski ,  Mark T. Marshall ,  Jeffrey D. Wilkinson ,  Amy E. Thompson-Nauman

IPC: A61N1/39 ,  A61N1/375

Abstract: This disclosure describes implantable medical leads and medical device systems utilizing the leads. In some examples, an implantable medical lead comprises a first defibrillation electrode and a second defibrillation electrode, the first and second defibrillation electrodes configured to deliver anti-tachyarrhythmia shocks, and a pace electrode disposed between the first defibrillation electrode and the second defibrillation electrode, the pace electrode configured to deliver a pacing pulse that generates an electric field proximate to the pace electrode. The implantable medical lead further comprises a shield disposed between the first defibrillation electrode and the second defibrillation electrode and over a portion of an outer surface of the pace electrode, wherein the shield is configured to impede the electric field in a direction from the pace electrode away from a heart.

公开(公告)号：US10940325B2

公开(公告)日：2021-03-09

申请号：US16195015

申请日：2018-11-19

Applicant: Medtronic, Inc.

Inventor： Yanina Grinberg ,  Robert T. Sawchuk ,  Amy E. Thompson-Nauman ,  Douglas A. Peterson ,  Paul R. Solheim ,  Joel R. Lauer

IPC: A61N1/39 ,  A61N1/37 ,  A61N1/362 ,  A61N1/372

Abstract: An implantable cardioverter defibrillator (ICD) receives a cardiac electrical signal by a sensing circuit while operating in a sensing without pacing mode and detects asystole based on the cardiac electrical signal. The ICD determines, in response to detecting the asystole, if asystole backup pacing is enabled, and automatically switches to a temporary pacing mode in response to the asystole backup pacing being enabled. Other examples of detecting asystole and providing a response to detecting asystole by the ICD are described herein.

公开(公告)号：US10933230B2

公开(公告)日：2021-03-02

申请号：US14257519

申请日：2014-04-21

Applicant: Medtronic, Inc.

Inventor： Melissa G. T. Christie ,  Amy E. Thompson-Nauman ,  Noah D. Barka ,  Rick D. McVenes

IPC: A61N1/05 ,  A61M5/14 ,  A61B17/34 ,  A61B17/00 ,  A61B17/32

Abstract: Devices and implantation methods utilizing subcutaneous placement into a patient are disclosed for the insertion, advancement and positioning of a subcutaneous implantable medical device (SIMD) such as a medical electrical lead. The device for implanting the SIMD is configured having a pre-biased distal curve for creating a pathway to an implant location within a substernal space.

公开(公告)号：US20200368519A1

公开(公告)日：2020-11-26

申请号：US16990321

申请日：2020-08-11

Applicant: Medtronic, Inc.

Inventor： Mark T. Marshall ,  Amy E. Thompson-Nauman ,  Melissa G.T. Christie ,  Gonzalo Martinez ,  Kevin R. Seifert

IPC: A61N1/05

Abstract: A lead body having a defibrillation electrode positioned along a distal portion of the lead body is described. The defibrillation electrode includes a plurality of electrode segments spaced a distance apart from each other. At least one of the plurality of defibrillation electrode segments includes at least one coated portion and at least one uncoated portion. The at least one coated portion is coated with an electrically insulating material configured to prevent transmission of a low voltage signal (e.g., a pacing pulse) while allowing transmission of a high voltage signal (e.g., a cardioversion defibrillation shock). The at least one uncoated portion is configured to transmit both low voltage and high voltage signals. The lead may also include one or more discrete electrodes proximal, distal or between the defibrillation electrode segments.

公开(公告)号：US20200046989A1

公开(公告)日：2020-02-13

申请号：US16536979

申请日：2019-08-09

Applicant: Medtronic, Inc.

Inventor： Amy E. Thompson-Nauman ,  Jeffrey D. Wilkinson ,  Darrell J. Swenson

IPC: A61N1/39

Abstract: In some examples, medical device systems that deliver anti-tachyarrhythmia shock(s) (e.g., defibrillation shock(s)) to a heart of a patient in coordination with the respiration of the patient. In one example, a medical device system including therapy generation circuitry configured to generate a defibrillation shock. The medical device system also includes processing circuitry configured to identify a time at which a respiratory volume of a lung of a patient is at approximately end tidal volume or less; and control the therapy generation circuitry to deliver the defibrillation shock to a heart of the patient at the time that the respiratory volume of the lung of a patient is at the approximately end tidal volume or less.

公开(公告)号：US10556117B2

公开(公告)日：2020-02-11

申请号：US14261456

申请日：2014-04-25

Applicant: Medtronic, Inc.

Inventor： Amy E. Thompson-Nauman ,  Melissa G. T. Christie ,  Paul J. DeGroot ,  Rick D. McVenes ,  Becky L. Dolan

IPC: A61N1/39

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.