公开(公告)号：US20220143409A1

公开(公告)日：2022-05-12

申请号：US17490292

申请日：2021-09-30

Applicant: Medtronic, Inc.

Inventor： Vincent P. GANION ,  Yanina GRINBERG ,  Paul R. SOLHEIM

IPC: A61N1/365 ,  A61N1/37 ,  A61N1/368

Abstract: A medical device is configured to sense a cardiac signal that includes far field ventricular event signals and determine a ventricular activity metric from the sensed cardiac signal. The ventricular activity metric may be representative of a ventricular rate or an atrioventricular time interval. The medical device is configured to determine an atrioventricular synchrony metric based on the ventricular activity metric and generate an output based on the atrioventricular synchrony metric. The device may include a memory configured to store data corresponding to the atrioventricular synchrony metric.

公开(公告)号：US20200298003A1

公开(公告)日：2020-09-24

申请号：US16895402

申请日：2020-06-08

Applicant: Medtronic, Inc.

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

IPC: A61N1/362 ,  A61N1/39 ,  A61N1/365 ,  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：US20200269055A1

公开(公告)日：2020-08-27

申请号：US16283087

申请日：2019-02-22

Applicant: Medtronic, Inc.

Inventor： Karen J. KLECKNER ,  Wade M. DEMMER ,  Vincent P. GANION ,  Yanina GRINBERG ,  Paul R. SOLHEIM

IPC: A61N1/378 ,  A61N1/05 ,  A61N1/39 ,  A61N1/365 ,  A61N1/362

Abstract: A medical device and method conserve electrical power used in monitoring cardiac arrhythmias. The device includes a sensing circuit configured to sense a cardiac signal, a power source and a control circuit having a processor powered by the power source. The control circuit is configured to operate in a normal state by waking up the processor to analyze the cardiac electrical signal for determining a state of an arrhythmia. The control circuit switches from the normal state to a power saving state that includes waking up the processor at a lower rate than during the normal state.

公开(公告)号：US20200094065A1

公开(公告)日：2020-03-26

申请号：US16696129

申请日：2019-11-26

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 ,  A61B5/00 ,  A61B5/042

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：US20190117985A1

公开(公告)日：2019-04-25

申请号：US15790255

申请日：2017-10-23

Applicant: Medtronic, Inc.

Inventor： Jian CAO ,  Gerald P. ARNE ,  Timothy A. EBELING ,  Yanina GRINBERG ,  Michael W. HEINKS ,  Paul R. SOLHEIM ,  Xusheng ZHANG

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

CPC classification number: A61N1/3956 ,  A61B5/0456 ,  A61N1/05 ,  A61N1/3621 ,  A61N1/3622 ,  A61N1/365 ,  A61N1/37252 ,  A61N1/3931 ,  A61N1/3943 ,  A61N1/3987

Abstract: An implantable medical device system is configured to sense cardiac events in response to a cardiac electrical signal crossing a cardiac event sensing threshold. A control circuit is configured to determine a drop time interval based on a heart rate and control a sensing circuit to hold the cardiac event sensing threshold at a threshold value during the drop time interval.

公开(公告)号：US20170312534A1

公开(公告)日：2017-11-02

申请号：US15142171

申请日：2016-04-29

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

CPC classification number: A61N1/3987 ,  A61B5/0422 ,  A61B5/0456 ,  A61B5/046 ,  A61B5/686 ,  A61N1/05 ,  A61N1/3621 ,  A61N1/365 ,  A61N1/39 ,  A61N1/3925 ,  A61N1/3956

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：US20170312533A1

公开(公告)日：2017-11-02

申请号：US15142074

申请日：2016-04-29

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 ,  A61N1/372 ,  A61N1/37 ,  A61N1/362

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.

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：US20220288387A1

公开(公告)日：2022-09-15

申请号：US17669294

申请日：2022-02-10

Applicant: Medtronic, Inc.

Inventor： Saul E. GREENHUT ,  Mark L. BROWN ,  Vincent P. GANION ,  Yanina GRINBERG ,  Troy E. JACKSON ,  Todd J. SHELDON ,  Shravya SRIGIRI ,  Paul R. SOLHEIM

IPC: A61N1/365 ,  A61N1/362

Abstract: A medical device is configured to sense a cardiac electrical signal and detect an atrial tachyarrhythmia based on the sensed cardiac electrical signal. The medical device is configured to determine that far field oversensing criteria are met by the cardiac electrical signal during the detected atrial tachyarrhythmia. The medical device may detect termination of the detected atrial tachyarrhythmia in response to the far field oversensing criteria being met.

公开(公告)号：US20210236826A1

公开(公告)日：2021-08-05

申请号：US17159635

申请日：2021-01-27

Applicant: Medtronic, Inc.

Inventor： Todd J. SHELDON ,  Paul R. SOLHEIM ,  Vincent E. SPLETT

IPC: A61N1/365 ,  A61N1/02 ,  A61N1/375 ,  G16H20/30 ,  G16H40/67 ,  G16H50/30

Abstract: A medical device includes a motion sensor configured to produce a motion signal and a control circuit configured to sense atrial events from the motion signal. In some examples, the control circuit is configured to set a ventricular diastolic event window and set a threshold amplitude during the ventricular diastolic event window for sensing an atrial event in response to the motion signal crossing the threshold amplitude during the ventricular diastolic window. The control circuit may determine a maximum amplitude of the motion signal during the ventricular diastolic event window for multiple ventricular cycles and determine an amplitude metric based on at least a portion of the determined maximum amplitudes. The control circuit may determine a target value of the threshold amplitude based on at least the amplitude metric and adjust the threshold amplitude toward the target value.