EMERGENCY MODE SWITCHING FOR NON-PACING MODES

• US 20120221068A1
• Filed: 02/25/2011
• Published: 08/30/2012
• Est. Priority Date: 02/25/2011
• Status: Active Grant

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Ellingson, Michael L.
• Granted Patent: US 9,795,792 B2
• Time in Patent Office: Days
• US Class Current: 607/17
• CPC Class Codes: A61N 1/3688 configured for switching the pacing mode, e.g. from AAI to DDD
• CPC Class Codes: A61N 1/3718 Monitoring of or protection against external electromagnetic fields or currents

Abstract

An implantable medical device (IMD) may be configured into a sensing only mode in which the IMD does not delivery therapy. For example, the IMD may be configured to operate in a sensing only mode to reduce the undesirable effects that may be caused by external fields, such as those generated by an MRI device. However, there may be instances, such as a change in the patient'"'"'s condition, in which it may be desirable to transition from the sensing only mode to a pacing mode to provide therapy. In accordance with the techniques described herein, the IMD monitors signals on one or more leads coupled to the medical device while operating in the sensing only mode and transitions to a pacing mode in response to not detecting a minimum number of signals on the one or more leads.

Claims

8-1. The system of claim 8, wherein the implantable medical device transitions to the second operating mode upon failing to sense a signal on the at least one lead for a threshold period of time.

15. A computer-readable medium comprising instructions that, when executed, cause an implantable medical device to:

configure an implantable medical device to operate in a first operating mode in which the implantable medical device does not provide pacing;

monitor signals on at least one lead while operating in the first operating mode;

automatically configure from the first operating mode to a second operating mode in which the implantable medical device provides pacing upon failing to sense a minimum number of signals on the at least one lead while operating in the first operating mode.

16. The computer-readable medium of claim 15, wherein the instructions, when executed, cause the implantable medical device to automatically configure from the first operating mode to the second operating mode upon failing to sense a signal on the at least one lead for a threshold period of time.

17. The computer-readable medium of claim 15, wherein the instructions, when executed, cause the implantable medical device to automatically configure from the first operating mode to the second operating mode upon failing to sense at least two expected cardiac events on the at least one lead within a particular number of expected events.