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US 8,046,063 B2Granted
Implantable medical device with adaptive operation
AssigneeMedtronic, Inc.
InventorRobert A. Betzold
Life of this patent
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Abstract
An implantable medical device operates with an algorithm that promotes intrinsic conduction and reduces ventricular pacing. The IMD monitors the occurrence of necessary ventricular pacing and takes certain actions based upon whether this occurrence has been relatively high or relatively low. When noise is detected, asynchronous pacing is provided when the occurrence is relatively high and is not provided when relatively low. When atrial threshold testing is performed, the incidence will determine which methodology is utilized.
Claims11
A method comprising:
- operating an implantable medical device (IMD) having pacing capabilities according to a Ventricular Pacing Protocol (VPP);
- monitoring performance of the IMD including frequency of occurrence of ventricular pacing while operating according to the VPP;
- classifying an AV conduction status based upon the performance of the IMD while operating according to the VPP, wherein the conduction status is given a first classification or a second classification responsive to the monitored frequency of occurrence of ventricular pacing and wherein the frequency of occurrence of ventricular pacing is lower for the first classification than for the second classification;
- determining presence of a condition allowing for selection of a first response or a second response;
- and
- responsive to the presence of the condition, selecting the first response when the AV conduction status has been given the first classification and selecting the second response when the AV conduction status has been given the second classification.
3 more elements
A method comprising:
- operating an implantable medical device (IMD) according to a Ventricular Pacing Protocol (VPP) wherein the IMD operates in an atrial based pacing mode and monitors for intrinsic AV conduction over an entire cardiac cycle and provides ventricular backup pacing in a cardiac cycle subsequent to a first cardiac cycle devoid of sensed ventricular activity;
- monitoring the operation of the IMD during operation according to the VPP and recording data indicative of frequency of occurrence of ventricular pacing;
- classifying an AV conduction status to a first or a second status based upon the data, wherein the first status is indicative of a lower frequency of occurrence of ventricular pacing than the second status;
- monitoring for the presence of noise;
- providing asynchronous pacing if noise is detected and the AV Conduction status is classified as the second status;
- and
- inhibiting asynchronous pacing if noise is detected and the AV conduction status is classified as the first status.
4 more elements
Dependencies are inferred from the claim text.