公开(公告)号：US20240325767A1

公开(公告)日：2024-10-03

申请号：US18737935

申请日：2024-06-07

Applicant: Medtronic, Inc.

Inventor： Yanina GRINBERG ,  Paul D. BAKER ,  Lonny V. CABELKA ,  Craig W. DORMA ,  Timothy A. EBELING ,  Michael W. HEINKS ,  James VANDER HEYDEN ,  Joseph IPPOLITO ,  Joel R. LAUER ,  Robert T. SAWCHUK ,  Brian W. SCHOUSEK

IPC: A61N1/39 ,  A61N1/05 ,  A61N1/365

CPC classification number: A61N1/3962 ,  A61N1/05 ,  A61N1/36507 ,  A61N1/3925 ,  A61N1/39622 ,  A61N1/3981 ,  A61N1/3987

Abstract: An extra-cardiovascular implantable cardioverter defibrillator (ICD) having a high voltage therapy module is configured to control a high voltage charging circuit to charge a capacitor to a pacing voltage amplitude to deliver charge balanced pacing pulses. The capacitor is chargeable to a shock voltage amplitude that is greater than the pacing voltage amplitude. The ICD is configured to enable switching circuitry of the high voltage therapy module to discharge the capacitor to deliver a first pulse having a first polarity and a leading voltage amplitude corresponding to the pacing voltage amplitude for pacing the patient's heart via a pacing electrode vector selected from extra-cardiovascular electrodes. The high voltage therapy module delivers a second pulse after the first pulse. The second pulse has a second polarity opposite the first polarity and balances the electrical charge delivered during the first pulse.

公开(公告)号：US20220331600A1

公开(公告)日：2022-10-20

申请号：US17856946

申请日：2022-07-01

Applicant: Medtronic, Inc.

Inventor： Jian CAO ,  Timothy A. EBELING ,  Saul E. GREENHUT ,  Michael W. HEINKS ,  Irving J. SANCHEZ ,  Paul R. SOLHEIM ,  Xusheng ZHANG ,  Gerald P. ARNE

IPC: A61N1/39 ,  A61B5/00 ,  A61B5/287 ,  A61B5/352 ,  A61N1/05

Abstract: An implantable medical device system capable of sensing cardiac electrical signals includes a sensing circuit, a therapy delivery circuit and a control circuit. The sensing circuit is configured to receive a cardiac electrical signal and sense a cardiac event in response to the signal crossing a cardiac event sensing threshold. The therapy delivery circuit is configured to deliver an electrical stimulation therapy to a patient's heart via the electrodes coupled to the implantable medical device. The control circuit is configured to control the sensing circuit to set a starting value of the cardiac event sensing threshold and hold the starting value constant for a sense delay interval. The control circuit is further configured to detect an arrhythmia based on cardiac events sensed by the sensing circuit and control the therapy delivery circuit to deliver the electrical stimulation therapy in response to detecting the arrhythmia.

公开(公告)号：US20190054297A1

公开(公告)日：2019-02-21

申请号：US15677204

申请日：2017-08-15

Applicant: Medtronic, Inc.

Inventor： Xusheng ZHANG ,  Yanina GRINBERG ,  Paul R. SOLHEIM ,  Troy E. JACKSON ,  Timothy A. EBELING ,  Vladimir P. NIKOLSKI

IPC: A61N1/362 ,  A61N1/365 ,  A61N1/39 ,  A61N1/372

Abstract: An implantable medical device system is configured to detect a tachyarrhythmia from a cardiac electrical signal and start an ATP therapy delay period. The implantable medical device determines whether the cardiac electrical signal received during the ATP therapy delay period satisfies ATP delivery criteria. A therapy delivery module is controlled to cancel the delayed ATP therapy if the ATP delivery criteria are not met and deliver the delayed ATP therapy if the ATP delivery criteria are met.

公开(公告)号：US20180339164A1

公开(公告)日：2018-11-29

申请号：US16054089

申请日：2018-08-03

Applicant: Medtronic, Inc.

Inventor： Jian CAO ,  Timothy A. EBELING ,  Saul E. GREENHUT ,  Michael W. HEINKS ,  Irving J. SANCHEZ ,  Paul R. SOLHEIM ,  Xusheng ZHANG ,  Gerald P. ARNE

IPC: A61N1/39 ,  A61N1/05 ,  A61B5/0456 ,  A61N1/362 ,  A61N1/365

Abstract: An implantable medical device system capable of sensing cardiac electrical signals includes a sensing circuit, a therapy delivery circuit and a control circuit. The sensing circuit is configured to receive a cardiac electrical signal and sense a cardiac event in response to the signal crossing a cardiac event sensing threshold. The therapy delivery circuit is configured to deliver an electrical stimulation therapy to a patient's heart via the electrodes coupled to the implantable medical device. The control circuit is configured to control the sensing circuit to set a starting value of the cardiac event sensing threshold and hold the starting value constant for a sense delay interval. The control circuit is further configured to detect an arrhythmia based on cardiac events sensed by the sensing circuit and control the therapy delivery circuit to deliver the electrical stimulation therapy in response to detecting the arrhythmia.

公开(公告)号：US20180221677A1

公开(公告)日：2018-08-09

申请号：US15425169

申请日：2017-02-06

Applicant: Medtronic, Inc.

Inventor： Yanina GRINBERG ,  Paul D. BAKER ,  Lonny V. CABELKA ,  Craig W. DORMA ,  Timothy A. EBELING ,  Michael W. HEINKS ,  James VANDER HEYDEN ,  Joseph IPPOLITO ,  Joel R. LAUER ,  Robert W. SAWCHUK ,  Brian W. SCHOUSEK

IPC: A61N1/39 ,  A61N1/05 ,  A61N1/365

Abstract: An extra-cardiovascular implantable cardioverter defibrillator (ICD) having a high voltage therapy module is configured to control a high voltage charging circuit to charge a capacitor to a pacing voltage amplitude to deliver charge balanced pacing pulses. The capacitor is chargeable to a shock voltage amplitude that is greater than the pacing voltage amplitude. The ICD is configured to enable switching circuitry of the high voltage therapy module to discharge the capacitor to deliver a first pulse having a first polarity and a leading voltage amplitude corresponding to the pacing voltage amplitude for pacing the patient's heart via a pacing electrode vector selected from extra-cardiovascular electrodes. The high voltage therapy module delivers a second pulse after the first pulse. The second pulse has a second polarity opposite the first polarity and balances the electrical charge delivered during the first pulse.