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：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：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.