公开(公告)号：US20180140846A1

公开(公告)日：2018-05-24

申请号：US15858017

申请日：2017-12-29

Applicant: Medtronic, Inc.

Inventor： Subham Ghosh ,  Kushagr Gupta

IPC: A61N1/365 ,  A61N1/39 ,  A61N1/372 ,  A61N1/37 ,  A61N1/368

CPC classification number: A61N1/36514 ,  A61N1/365 ,  A61N1/36507 ,  A61N1/368 ,  A61N1/3702 ,  A61N1/37288 ,  A61N1/3956

Abstract: A medical device system for controlling ventricular pacing therapy during cardiac resynchronization therapy that includes a sensing device to sense a cardiac signal and emit a trigger signal in response to the sensed cardiac signal, a therapy delivery device to deliver the ventricular pacing in response to the emitted trigger signal, and a processor configured to identify a fiducial point of the cardiac signal sensed in real-time, set a window comprising a start point positioned a first distance prior to the fiducial point and an endpoint positioned a second distance less than the first distance subsequent to the fiducial point, determine a signal characteristic of the cardiac signal within the window, determine whether a P-wave is detected in response to the signal characteristic, determine whether an atrio-ventricular interval timer has expired, and emit a trigger signal to deliver the ventricular pacing timed off of the local maximum in response to the P-wave being detected and not timed off of the local maximum in response to the timer being expired.

公开(公告)号：US10342981B2

公开(公告)日：2019-07-09

申请号：US15858017

申请日：2017-12-29

Applicant: Medtronic, Inc.

Inventor： Subham Ghosh ,  Kushagr Gupta

IPC: A61N1/00 ,  A61N1/365 ,  A61N1/368 ,  A61N1/37 ,  A61N1/372 ,  A61N1/39

Abstract: A medical device system for controlling ventricular pacing therapy during cardiac resynchronization therapy that includes a sensing device to sense a cardiac signal and emit a trigger signal in response to the sensed cardiac signal, a therapy delivery device to deliver the ventricular pacing in response to the emitted trigger signal, and a processor configured to identify a fiducial point of the cardiac signal sensed in real-time, set a window comprising a start point positioned a first distance prior to the fiducial point and an endpoint positioned a second distance less than the first distance subsequent to the fiducial point, determine a signal characteristic of the cardiac signal within the window, determine whether a P-wave is detected in response to the signal characteristic, determine whether an atrio-ventricular interval timer has expired, and emit a trigger signal to deliver the ventricular pacing timed off of the local maximum in response to the P-wave being detected and not timed off of the local maximum in response to the timer being expired.

公开(公告)号：US09855430B2

公开(公告)日：2018-01-02

申请号：US14926359

申请日：2015-10-29

Applicant: Medtronic, Inc.

Inventor： Subham Ghosh ,  Kushagr Gupta

IPC: A61N1/00 ,  A61N1/365 ,  A61N1/368 ,  A61N1/37 ,  A61N1/372 ,  A61N1/39

CPC classification number: A61N1/36514 ,  A61N1/365 ,  A61N1/36507 ,  A61N1/368 ,  A61N1/3702 ,  A61N1/37288 ,  A61N1/3956

Abstract: A medical device system for controlling ventricular pacing therapy during cardiac resynchronization therapy that includes a sensing device to sense a cardiac signal and emit a trigger signal in response to the sensed cardiac signal, a therapy delivery device to deliver the ventricular pacing in response to the emitted trigger signal, and a processor configured to identify a fiducial point of the cardiac signal sensed in real-time, set a window comprising a start point positioned a first distance prior to the fiducial point and an endpoint positioned a second distance less than the first distance subsequent to the fiducial point, determine a signal characteristic of the cardiac signal within the window, determine whether a P-wave is detected in response to the signal characteristic, determine whether an atrio-ventricular interval timer has expired, and emit a trigger signal to deliver the ventricular pacing timed off of the local maximum in response to the P-wave being detected and not timed off of the local maximum in response to the timer being expired.

公开(公告)号：US20170120058A1

公开(公告)日：2017-05-04

申请号：US14926359

申请日：2015-10-29

Applicant: Medtronic, Inc.

Inventor： Subham Ghosh ,  Kushagr Gupta

IPC: A61N1/365 ,  A61N1/39 ,  A61N1/372 ,  A61N1/368 ,  A61N1/37

CPC classification number: A61N1/36514 ,  A61N1/365 ,  A61N1/36507 ,  A61N1/368 ,  A61N1/3702 ,  A61N1/37288 ,  A61N1/3956

Abstract: A medical device system for controlling ventricular pacing therapy during cardiac resynchronization therapy that includes a sensing device to sense a cardiac signal and emit a trigger signal in response to the sensed cardiac signal, a therapy delivery device to deliver the ventricular pacing in response to the emitted trigger signal, and a processor configured to identify a fiducial point of the cardiac signal sensed in real-time, set a window comprising a start point positioned a first distance prior to the fiducial point and an endpoint positioned a second distance less than the first distance subsequent to the fiducial point, determine a signal characteristic of the cardiac signal within the window, determine whether a P-wave is detected in response to the signal characteristic, determine whether an atrio-ventricular interval timer has expired, and emit a trigger signal to deliver the ventricular pacing timed off of the local maximum in response to the P-wave being detected and not timed off of the local maximum in response to the timer being expired.