Back to results
US 7,925,344 B2Granted
System and method of using AV conduction timing
AssigneeMedtronic, Inc.
InventorCatherine R. Condie
Life of this patent
Estimating the term…
Abstract
In an implantable medical device that provides atrial and ventricular pacing in an atrial-based pacing mode, longer periods of time are permitted for intrinsic AV conduction to occur. By monitoring the patient's AV delay under these circumstances, useful information is obtained that can be correlated to other patient conditions or symptoms.
Claims20
A system comprising:
- means for providing cardiac pacing;
- means for controlling the means for providing cardiac pacing according to an atrial-based pacing mode, wherein the atrial-based pacing mode provides multiple-beat AV coordination and minimizes ventricular pacing by tolerating a complete cardiac cycle devoid of ventricular activity while maintaining AV synchrony, wherein the pacing mode utilizes an A-A interval to determine the cardiac cycle;
- means for collecting data indicative of a time interval for atrial-ventricular conduction delay (AV delay);
- means for correlating the collected data with a trigger condition to determine whether to initiate collection of data related to patient-indicated symptoms, wherein the trigger condition is determined based on the collected data;
- and
- means for displaying the collected data.
3 more elements
A method comprising:
- providing cardiac pacing with a device operating in an atrial-based pacing mode, wherein the atrial-based pacing mode permits an entire cardiac cycle to pass without ventricular activity with ventricular pacing provided in a cycle immediately subsequent to the cycle without ventricular activity, wherein the pacing mode utilizes an A-A interval to determine the cardiac cycle;
- measuring an atrial ventricular conduction delay (AV delay) for each of a plurality of cardiac cycles;
- storing the measured AV delays;
- transmitting the stored AV delays to an external device as AV delay data;
- using the AV delay data to evaluate a medical status;
- and
- correlating the measured AV delays with a trigger condition to determine whether to initiate collection of data related to patient-indicated symptoms.
4 more elements
Dependencies are inferred from the claim text.