Systems and methods for off-line reprogramming of implantable medical device components to reduce false detections of cardiac events
First Claim
1. A method for use with an implantable medical device, the method comprising:
- sensing a cardiac signal within a patient in which the implantable medical device is implanted using a cardiac signal sensing system of the implantable medical device;
detecting cardiac events of interest within the patient using an event detection system of the implantable medical device;
recording portions of the cardiac signal, including portions representative of the events of interest;
detecting a stable cardiac state of the patient by the implantable medical device;
in response to detecting the stable cardiac state, initiating an off-line analysis of the recorded portions of the cardiac signal including portions representative of events of interest to identify false detections of events of interest, wherein the off-line analysis is performed by the implantable medical device concurrently with continued operation of the event detection system; and
selectively adjusting one or both of the cardiac signal sensing system and the event detection system to reduce false detections of events of interest identified by the off-line analysis.
0 Assignments
0 Petitions
Accused Products
Abstract
Techniques are provided for use by implantable medical devices such as pacemakers or by external systems in communication with such devices. An intracardiac electrogram (IEGM) is sensed within a patient in which the device is implanted using a cardiac signal sensing system. Cardiac events of interest such as arrhythmias, premature atrial contractions (PACs), premature ventricular contractions (PVCs) and pacemaker mediated tachycardias (PMTs) are detected within the patient using event detection systems and then portions of the IEGM representative of the events of interest are recorded in device memory. Subsequently, during an off-line or background analysis, the recorded IEGM data is retrieved and analyzed to identify false detections. In response to false detections, the cardiac signal sensing systems and/or the event detection systems of the implantable device are selectively adjusted or reprogrammed to reduce or eliminate any further false detections, including false-positives or false-negatives. Various adaptive reprogramming techniques are described.
18 Citations
20 Claims
-
1. A method for use with an implantable medical device, the method comprising:
-
sensing a cardiac signal within a patient in which the implantable medical device is implanted using a cardiac signal sensing system of the implantable medical device; detecting cardiac events of interest within the patient using an event detection system of the implantable medical device; recording portions of the cardiac signal, including portions representative of the events of interest; detecting a stable cardiac state of the patient by the implantable medical device; in response to detecting the stable cardiac state, initiating an off-line analysis of the recorded portions of the cardiac signal including portions representative of events of interest to identify false detections of events of interest, wherein the off-line analysis is performed by the implantable medical device concurrently with continued operation of the event detection system; and selectively adjusting one or both of the cardiac signal sensing system and the event detection system to reduce false detections of events of interest identified by the off-line analysis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification