Cardiac pacing for optimal intra-left ventricular resynchronization
First Claim
1. A method of cardiac pacing for optimal intra-left ventricular resynchronization, comprising:
- determining an early paced inter-ventricular asynchrony during ventricular pacing;
determining a baseline inter-ventricular asynchrony without pacing;
calculating an average inter-ventricular asynchrony by averaging the early paced inter-ventricular asynchrony and the baseline inter-ventricular asynchrony; and
,adjusting atrio-ventricular delay and ventricular-ventricular delay during ventricular pacing to yield the average inter-ventricular asynchrony for intra-left ventricular resynchronization.
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Accused Products
Abstract
Cardiac pacing to treat ventricle dysynchrony for improved cardiac function is performed as follows. Early paced inter-ventricular asynchrony is determined during ventricular pacing. Baseline inter-ventricular asynchrony is determined without pacing. Average inter-ventricular asynchrony is calculated by averaging the early paced inter-ventricular asynchrony and the baseline inter-ventricular asynchrony. Atrio-ventricular delay and ventricular-ventricular delay are adjusted during ventricular pacing to yield the average inter-ventricular asynchrony for optimal intra-left ventricular resynchronization and maximal cardiac function. The elements above can be configured in software contained in an implantable medical device or embodied as a computer software product that includes a medium readable by a processor.
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Citations
15 Claims
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1. A method of cardiac pacing for optimal intra-left ventricular resynchronization, comprising:
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determining an early paced inter-ventricular asynchrony during ventricular pacing; determining a baseline inter-ventricular asynchrony without pacing; calculating an average inter-ventricular asynchrony by averaging the early paced inter-ventricular asynchrony and the baseline inter-ventricular asynchrony; and
,adjusting atrio-ventricular delay and ventricular-ventricular delay during ventricular pacing to yield the average inter-ventricular asynchrony for intra-left ventricular resynchronization. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A cardiac pacemaker configured for optimizing intra-left ventricular resynchronization, comprising:
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means for determining an early paced inter-ventricular asynchrony during ventricular pacing; means for determining a baseline inter-ventricular asynchrony without pacing; means for calculating average inter-ventricular asynchrony by averaging the paced inter-ventricular asynchrony and the baseline inter-ventricular asynchrony; means for adjusting atrio-ventricular delay and ventricle-ventricle delay during ventricular pacing to yield the average inter-ventricular asynchrony for intra-left ventricular resynchronization.
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13. A cardiac pacemaker for optimal intra-left ventricular resynchronization, comprising:
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a housing having a power supply carried in the housing and a feedthrough; a controller carried in the housing coupled to the power supply; memory coupled to the controller; pacing electronics coupled to the controller and the feedthrough; sensing electronics coupled to the controller and the feedthrough; a first electrical lead coupled to the feedthrough and configured for positioning in the right ventricle; a second electrical lead coupled to the feedthrough and configured for positioning in the left ventricle; software stored in memory containing instructions including, a first sequence of instructions when executed by the controller, causes the controller receive an early paced inter-ventricular asynchrony data during ventricular pacing through the first electrical lead and sensing electronics, a second sequence of instruction when executed by the controller, causes the controller to receive a baseline inter-ventricular asynchrony without pacing data through the first electrical lead, the second electrical lead, and sensing electronics, a third sequence of instruction when executed by the controller, causes the controller to calculate average inter-ventricular asynchrony by averaging the early paced inter-ventricular asynchrony data and the baseline inter-ventricular asynchrony data, and, a forth sequence of instruction when executed by the controller, causes the controller to adjust atrio-ventricular delay and ventricular-ventricular delay during ventricular pacing to yield the average inter-ventricular asynchrony for optimal intra-left ventricular resynchronization.
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14. A cardiac pacemaker for optimal intra-left ventricular resynchronization, comprising:
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a housing having a power supply carried in the housing and a feedthrough; a controller carried in the housing coupled to the power supply; memory coupled to the controller; pacing electronics coupled to the controller and the feedthrough; sensing electronics coupled to the controller and the feedthrough; a first electrical lead coupled to the feedthrough and configured for positioning in the right ventricle; a second electrical lead coupled to the feedthrough and configured for positioning in the left ventricle; means for determining an early paced inter-ventricular asynchrony during ventricular pacing; means for determining a baseline inter-ventricular asynchrony without pacing; means for calculating average inter-ventricular asynchrony by averaging the paced inter-ventricular asynchrony and the baseline inter-ventricular asynchrony; and
,means for adjusting atrio-ventricular delay and ventricle-ventricle delay during ventricular pacing to yield the average inter-ventricular asynchrony for intra-left ventricular resynchronization.
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15. A computer software product that includes a medium readable by a processor, the medium having stored thereon instructions for cardiac pacing for optimal intra-left ventricular resynchronization in an implantable cardiac, comprising:
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a first sequence of instructions when executed by the controller, causes the controller receive an early paced inter-ventricular asynchrony data during ventricular pacing; a second sequence of instruction when executed by the controller, causes the controller to receive a baseline inter-ventricular asynchrony without pacing data; a third sequence of instruction when executed by the controller, causes the controller to calculate average inter-ventricular asynchrony by averaging the early paced inter-ventricular asynchrony data and the baseline inter-ventricular asynchrony data; and
,a forth sequence of instruction when executed by the controller, causes the controller to adjust atrio-ventricular delay and ventricular-ventricular delay during ventricular pacing to yield the average inter-ventricular asynchrony for intra-left ventricular resynchronization.
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Specification