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公开(公告)号:US12280266B2
公开(公告)日:2025-04-22
申请号:US18406065
申请日:2024-01-05
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
Abstract: An implantable medical device has a therapy module configured to generate a composite pacing pulse including a series of at least two individual pulses. The therapy module is configured to generate the composite pacing pulse by generating a first pulse of the at least two individual pulses by selectively coupling a first portion of a plurality of capacitors to an output signal line and generate a second pulse of the at least two individual pulses by selectively coupling a second portion of the plurality of capacitors to the output signal line.
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公开(公告)号:US12186572B2
公开(公告)日:2025-01-07
申请号:US17185784
申请日:2021-02-25
Applicant: Medtronic, Inc.
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.
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公开(公告)号:US12157009B2
公开(公告)日:2024-12-03
申请号:US18061974
申请日:2022-12-05
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
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.
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公开(公告)号:US12097377B2
公开(公告)日:2024-09-24
申请号:US17196526
申请日:2021-03-09
Applicant: Medtronic, Inc.
Inventor: Yanina Grinberg , Robert T. Sawchuk , Amy E. Thompson-Nauman , Douglas A. Peterson , Paul R. Solheim , Joel R. Lauer
CPC classification number: A61N1/3987 , A61N1/3621 , A61N1/371 , A61N1/37217 , A61N1/37258 , A61N1/3925 , A61N1/3956 , A61N1/3962
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.
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5.
公开(公告)号:US12083333B2
公开(公告)日:2024-09-10
申请号:US18331793
申请日:2023-06-08
Applicant: Medtronic, Inc.
Inventor: Mark T. Marshall , Jian Cao , Melissa G. T. Christie , Paul J. DeGroot , Vladimir P. Nikolski , Amy E. Thompson-Nauman
CPC classification number: A61N1/05 , A61N1/0504 , A61N1/3918
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.
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公开(公告)号:US11986648B2
公开(公告)日:2024-05-21
申请号:US17815518
申请日:2022-07-27
Applicant: Medtronic, Inc.
Inventor: Amy E. Thompson-Nauman , Melissa G. T. Christie
CPC classification number: A61N1/05 , A61N1/057 , A61N1/0573 , A61N1/3956 , A61N2001/0578 , A61N2001/058
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.
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公开(公告)号:US20240123218A1
公开(公告)日:2024-04-18
申请号:US18396019
申请日:2023-12-26
Applicant: Medtronic, Inc.
Inventor: Amy E. Thompson-Nauman , Melissa G.T. Christie , Paul J. DeGroot , Rick D. McVenes , Becky L. Dolan
CPC classification number: A61N1/05 , A61N1/39622
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.
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公开(公告)号:US11857779B2
公开(公告)日:2024-01-02
申请号:US16742385
申请日:2020-01-14
Applicant: Medtronic, Inc.
Inventor: Amy E. Thompson-Nauman , Melissa G. T. Christie , Paul J. DeGroot , Rick D. McVenes , Becky L Dolan
CPC classification number: A61N1/05 , A61N1/39622
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.
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9.
公开(公告)号:US20230310840A1
公开(公告)日:2023-10-05
申请号:US18331793
申请日:2023-06-08
Applicant: Medtronic, Inc.
Inventor: Mark T. Marshall , Jian Cao , Melissa G.T. Christie , Paul J. DeGroot , Vladimir P. Nikolski , Amy E. Thompson-Nauman
CPC classification number: A61N1/05 , A61N1/3918 , A61N1/0504
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.
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10.
公开(公告)号:US11083491B2
公开(公告)日:2021-08-10
申请号:US14962485
申请日:2015-12-08
Applicant: Medtronic, Inc.
Inventor: Ronald A. Drake , Kevin R. Seifert , Lester O. Stener , Amy E. Thompson-Nauman
Abstract: Extravascular implant tools that utilize a bore-in mechanism to safely access extravascular locations and implant techniques utilizing these tools are described. The bore-in mechanism may include a handle and a helix extending from the handle. The bore-in mechanism is used, for example, in conjunction with a tunneling tool to traverse the diaphragmatic attachments to access a substernal location. The tunneling tool may be an open channel tunneling tool or a conventional tunneling tool (e.g., metal rod).
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