Back to results
US 2014/0236253 A1Published application
Criteria for optimal electrical resynchronization during fusion pacing
AssigneeMedtronic, Inc.
InventorsSubham Ghosh, Robert W. Stadler
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeMedtronic, Inc.
InventorsSubham Ghosh, Robert W. Stadler
Estimating the term…
Generally, the disclosure is directed one or more methods or systems of cardiac pacing employing a plurality of left ventricular electrodes. Pacing using a first one of the left ventricular electrodes and measuring activation times at other ones of the left and right ventricular electrodes. Pacing using a second one of the ventricular electrodes and measuring activation times at other ones of the left ventricular electrodes. Employing weighted sums of the measured activation times to measure a fusion index and select one of the left ventricular electrodes for delivery of subsequent pacing pulses based on comparing fusion indices during pacing from different LV electrodes. One or more embodiments use the same fusion index to select an optimal A-V delay by comparing fusion indices during pacing with different A-V delays at resting atrial rates as well as rates above the resting rate.
A method of cardiac pacing employing a right ventricular electrode and a plurality of left ventricular electrodes, comprising:
The method of 9 wherein the first and second A-V delay are associated with atrial sense at a resting atrial rate.
A system of cardiac pacing employing a right ventricular electrode and a plurality of left ventricular electrodes, comprising:
The system of claim 21 wherein a summation of each weighting factor associated with each electrode of the left ventricular electrodes and another weighting factor for each electrode of the one or more RV electrodes is 1.
Dependencies are inferred from the claim text.