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US 12,420,100 B2Granted
Implantable medical systems and methods used to detect, characterize or avoid atrial oversensing within an IEGM
AssigneePacesetter, Inc.
InventorsYun Qiao, Wenwen Li, Jan Mangual, Luke C. McSpadden
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Abstract
Certain embodiments of the present technology described herein relate to detecting atrial oversensing, characterizing atrial oversensing, determining when atrial oversensing is likely to occur, and or reducing the chance of atrial oversensing occurring. Some such embodiments characterize and/or avoid atrial oversensing.
Claims25
An implantable medical system configured to selectively perform capture management, the system comprising:
- one or more implantable electrodes that can be used for sensing and pacing;
- a sensing circuit configured to sense an intracardiac electrogram (IEGM) using at least one of the one or more implantable electrodes;
- one or more pulse generators;
- and
- a controller operatively coupled to the sensing circuit and the one or more pulse generators and configured to
- cause pacing of a right atrium using at least one of the one or more implantable electrodes configured to be implanted in the right atrium to thereby cause a paced atrial event;
- determine whether a portion of the IEGM exceeds a specified sense threshold within a specified window that begins at an end of an atrioventricular delay (AVD) following the paced atrial event;
- detect atrial oversensing based on results of the determining whether the portion of the IEGM exceeds the specified sense threshold within the specified window;
- and
- prevent performance of capture management in response to the atrial oversensing being detected.
7 more elements
A method for use with an implantable medical system that is configured to selectively perform capture management, the method comprising:
- sensing an intracardiac electrogram (IEGM);
- pacing a right atrium using at least one electrode implanted in the right atrium to thereby cause a paced atrial event;
- determining whether a portion of the IEGM exceeds a specified sense threshold within a specified window that begins at an end of an atrioventricular delay (AVD) following the paced atrial event;
- detecting atrial oversensing based on results of the determining whether the portion of the IEGM exceeds the specified sense threshold within the specified window;
- and
- preventing performance of the capture management in response to detecting the atrial oversensing.
3 more elements
An implantable medical system, comprising:
- one or more implantable electrodes that can be used for sensing and pacing;
- a sensing circuit configured to sense an intracardiac electrogram (IEGM) using at least one of the one or more implantable electrodes;
- one or more pulse generators;
- a controller operatively coupled to the sensing circuit and the one or more pulse generators and configured to
- cause sensing or pacing of a right atrium to thereby sense or pace an atrial event;
- determine whether a portion of the IEGM exceeds a specified sense threshold within a specified window within an atrioventricular delay (AVD) following the sensed or paced atrial event;
- detect an atrial signal component within the IEGM based on whether it is determined that the portion of the IEGM exceeds the specified sense threshold within the specified window within the AVD, wherein detection of the atrial signal component within the IEGM is indicative of potential atrial oversensing;
- and
- trigger ventricular pacing in response to the portion of the IEGM exceeding the specified sense threshold within the AVD, or trigger ventricular pacing at an end of the AVD in response to no portion of the IEGM exceeding the specified sense threshold within the AVD.
6 more elements
A method for use with an implantable medical system, the method comprising:
- sensing an intracardiac electrogram (IEGM);
- sensing or pacing a right atrium to thereby sense or pace an atrial event;
- determining whether a portion of the IEGM exceeds a specified sense threshold within a specified window within an atrioventricular delay (AVD) following the sensed or paced atrial event;
- and
- detecting an atrial signal component within the IEGM based on results of the determining whether the portion of the IEGM exceeds the specified sense threshold within the specified window within the AVD, wherein the detecting the atrial signal component within the IEGM is indicative of potential atrial oversensing;
- and
- triggering ventricular pacing in response to detecting the portion of the IEGM exceeding the specified sense threshold within the AVD, or at an end of the AVD in response to no portion of the IEGM exceeding the specified sense threshold within the AVD.
4 more elements
Dependencies are inferred from the claim text.